DeCarabas/fwd
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Vendoring is not for me

Browse source 
I cannot get the checksums to consistently match across all operating
systems.
This commit is contained in:
John Doty 2022-12-20 06:55:23 -08:00
parent 81b53355f2
commit 57c01b0dd4
7499 changed files with 0 additions and 1664926 deletions
Download patch file Download diff file Expand all files Collapse all files

5
.cargo/config
View file

@ -1,5 +0,0 @@
[source.crates-io]
replace-with = "vendored-sources"
[source.vendored-sources]
directory = "vendor"

1
vendor/adler/.cargo-checksum.json vendored
View file

@ -1 +0,0 @@
{"files":{"CHANGELOG.md":"737088e45fdf27fe2cfedce163332d8ce08c58fd86ca287de2de34c0fbaf63e7","Cargo.toml":"f410869f0f1a5697f65a8a77be03da7aeecc0be26e7cf3a1feb1acaa4f518770","LICENSE-0BSD":"861399f8c21c042b110517e76dc6b63a2b334276c8cf17412fc3c8908ca8dc17","LICENSE-APACHE":"8ada45cd9f843acf64e4722ae262c622a2b3b3007c7310ef36ac1061a30f6adb","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"308c50cdb42b9573743068158339570b45ca3f895015ca3b87ba983edb0a21e6","RELEASE_PROCESS.md":"a86cd10fc70f167f8d00e9e4ce0c6b4ebdfa1865058390dffd1e0ad4d3e68d9d","benches/bench.rs":"c07ce370e3680c602e415f8d1ec4e543ea2163ab22a09b6b82d93e8a30adca82","src/algo.rs":"b664b131f724a809591394a10b9023f40ab5963e32a83fa3163c2668e59c8b66","src/lib.rs":"b55ba9c629b30360d08168b2ca0c96275432856a539737a105a6d6ae6bf7e88f"},"package":"f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"}

63
vendor/adler/CHANGELOG.md vendored
View file

@ -1,63 +0,0 @@
# Changelog
## Unreleased
No changes.
## [1.0.2 - 2021-02-26](https://github.com/jonas-schievink/adler/releases/tag/v1.0.2)
- Fix doctest on big-endian systems ([#9]).
[#9]: https://github.com/jonas-schievink/adler/pull/9
## [1.0.1 - 2020-11-08](https://github.com/jonas-schievink/adler/releases/tag/v1.0.1)
### Fixes
- Fix documentation on docs.rs.
## [1.0.0 - 2020-11-08](https://github.com/jonas-schievink/adler/releases/tag/v1.0.0)
### Fixes
- Fix `cargo test --no-default-features` ([#5]).
### Improvements
- Extended and clarified documentation.
- Added more rustdoc examples.
- Extended CI to test the crate with `--no-default-features`.
### Breaking Changes
- `adler32_reader` now takes its generic argument by value instead of as a `&mut`.
- Renamed `adler32_reader` to `adler32`.
## [0.2.3 - 2020-07-11](https://github.com/jonas-schievink/adler/releases/tag/v0.2.3)
- Process 4 Bytes at a time, improving performance by up to 50% ([#2]).
## [0.2.2 - 2020-06-27](https://github.com/jonas-schievink/adler/releases/tag/v0.2.2)
- Bump MSRV to 1.31.0.
## [0.2.1 - 2020-06-27](https://github.com/jonas-schievink/adler/releases/tag/v0.2.1)
- Add a few `#[inline]` annotations to small functions.
- Fix CI badge.
- Allow integration into libstd.
## [0.2.0 - 2020-06-27](https://github.com/jonas-schievink/adler/releases/tag/v0.2.0)
- Support `#![no_std]` when using `default-features = false`.
- Improve performance by around 7x.
- Support Rust 1.8.0.
- Improve API naming.
## [0.1.0 - 2020-06-26](https://github.com/jonas-schievink/adler/releases/tag/v0.1.0)
Initial release.
[#2]: https://github.com/jonas-schievink/adler/pull/2
[#5]: https://github.com/jonas-schievink/adler/pull/5

64
vendor/adler/Cargo.toml vendored
View file

@ -1,64 +0,0 @@
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
[package]
name = "adler"
version = "1.0.2"
authors = ["Jonas Schievink <jonasschievink@gmail.com>"]
description = "A simple clean-room implementation of the Adler-32 checksum"
documentation = "https://docs.rs/adler/"
readme = "README.md"
keywords = ["checksum", "integrity", "hash", "adler32", "zlib"]
categories = ["algorithms"]
license = "0BSD OR MIT OR Apache-2.0"
repository = "https://github.com/jonas-schievink/adler.git"
[package.metadata.docs.rs]
rustdoc-args = ["--cfg=docsrs"]
[package.metadata.release]
no-dev-version = true
pre-release-commit-message = "Release {{version}}"
tag-message = "{{version}}"
[[package.metadata.release.pre-release-replacements]]
file = "CHANGELOG.md"
replace = "## Unreleased\n\nNo changes.\n\n## [{{version}} - {{date}}](https://github.com/jonas-schievink/adler/releases/tag/v{{version}})\n"
search = "## Unreleased\n"
[[package.metadata.release.pre-release-replacements]]
file = "README.md"
replace = "adler = \"{{version}}\""
search = "adler = \"[a-z0-9\\\\.-]+\""
[[package.metadata.release.pre-release-replacements]]
file = "src/lib.rs"
replace = "https://docs.rs/adler/{{version}}"
search = "https://docs.rs/adler/[a-z0-9\\.-]+"
[[bench]]
name = "bench"
harness = false
[dependencies.compiler_builtins]
version = "0.1.2"
optional = true
[dependencies.core]
version = "1.0.0"
optional = true
package = "rustc-std-workspace-core"
[dev-dependencies.criterion]
version = "0.3.2"
[features]
default = ["std"]
rustc-dep-of-std = ["core", "compiler_builtins"]
std = []

12
vendor/adler/LICENSE-0BSD vendored
View file

@ -1,12 +0,0 @@
Copyright (C) Jonas Schievink <jonasschievink@gmail.com>
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

201
vendor/adler/LICENSE-APACHE vendored
View file

@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
https://www.apache.org/licenses/LICENSE-2.0
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

23
vendor/adler/LICENSE-MIT vendored
View file

@ -1,23 +0,0 @@
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

39
vendor/adler/README.md vendored
View file

@ -1,39 +0,0 @@
# Adler-32 checksums for Rust
[![crates.io](https://img.shields.io/crates/v/adler.svg)](https://crates.io/crates/adler)
[![docs.rs](https://docs.rs/adler/badge.svg)](https://docs.rs/adler/)
![CI](https://github.com/jonas-schievink/adler/workflows/CI/badge.svg)
This crate provides a simple implementation of the Adler-32 checksum, used in
the zlib compression format.
Please refer to the [changelog](CHANGELOG.md) to see what changed in the last
releases.
## Features
- Permissively licensed (0BSD) clean-room implementation.
- Zero dependencies.
- Zero `unsafe`.
- Decent performance (3-4 GB/s).
- Supports `#![no_std]` (with `default-features = false`).
## Usage
Add an entry to your `Cargo.toml`:
```toml
[dependencies]
adler = "1.0.2"
```
Check the [API Documentation](https://docs.rs/adler/) for how to use the
crate's functionality.
## Rust version support
Currently, this crate supports all Rust versions starting at Rust 1.31.0.
Bumping the Minimum Supported Rust Version (MSRV) is *not* considered a breaking
change, but will not be done without good reasons. The latest 3 stable Rust
versions will always be supported no matter what.

13
vendor/adler/RELEASE_PROCESS.md vendored
View file

@ -1,13 +0,0 @@
# What to do to publish a new release
1. Ensure all notable changes are in the changelog under "Unreleased".
2. Execute `cargo release <level>` to bump version(s), tag and publish
everything. External subcommand, must be installed with `cargo install
cargo-release`.
`<level>` can be one of `major|minor|patch`. If this is the first release
(`0.1.0`), use `minor`, since the version starts out as `0.0.0`.
3. Go to the GitHub releases, edit the just-pushed tag. Copy the release notes
from the changelog.

109
vendor/adler/benches/bench.rs vendored
View file

@ -1,109 +0,0 @@
extern crate adler;
extern crate criterion;
use adler::{adler32_slice, Adler32};
use criterion::{criterion_group, criterion_main, Criterion, Throughput};
fn simple(c: &mut Criterion) {
{
const SIZE: usize = 100;
let mut group = c.benchmark_group("simple-100b");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("zeroes-100", |bencher| {
bencher.iter(|| {
adler32_slice(&[0; SIZE]);
});
});
group.bench_function("ones-100", |bencher| {
bencher.iter(|| {
adler32_slice(&[0xff; SIZE]);
});
});
}
{
const SIZE: usize = 1024;
let mut group = c.benchmark_group("simple-1k");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("zeroes-1k", |bencher| {
bencher.iter(|| {
adler32_slice(&[0; SIZE]);
});
});
group.bench_function("ones-1k", |bencher| {
bencher.iter(|| {
adler32_slice(&[0xff; SIZE]);
});
});
}
{
const SIZE: usize = 1024 * 1024;
let mut group = c.benchmark_group("simple-1m");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("zeroes-1m", |bencher| {
bencher.iter(|| {
adler32_slice(&[0; SIZE]);
});
});
group.bench_function("ones-1m", |bencher| {
bencher.iter(|| {
adler32_slice(&[0xff; SIZE]);
});
});
}
}
fn chunked(c: &mut Criterion) {
const SIZE: usize = 16 * 1024 * 1024;
let data = vec![0xAB; SIZE];
let mut group = c.benchmark_group("chunked-16m");
group.throughput(Throughput::Bytes(SIZE as u64));
group.bench_function("5552", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(5552) {
h.write_slice(chunk);
}
h.checksum()
});
});
group.bench_function("8k", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(8 * 1024) {
h.write_slice(chunk);
}
h.checksum()
});
});
group.bench_function("64k", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(64 * 1024) {
h.write_slice(chunk);
}
h.checksum()
});
});
group.bench_function("1m", |bencher| {
bencher.iter(|| {
let mut h = Adler32::new();
for chunk in data.chunks(1024 * 1024) {
h.write_slice(chunk);
}
h.checksum()
});
});
}
criterion_group!(benches, simple, chunked);
criterion_main!(benches);

146
vendor/adler/src/algo.rs vendored
View file

@ -1,146 +0,0 @@
use crate::Adler32;
use std::ops::{AddAssign, MulAssign, RemAssign};
impl Adler32 {
pub(crate) fn compute(&mut self, bytes: &[u8]) {
// The basic algorithm is, for every byte:
// a = (a + byte) % MOD
// b = (b + a) % MOD
// where MOD = 65521.
//
// For efficiency, we can defer the `% MOD` operations as long as neither a nor b overflows:
// - Between calls to `write`, we ensure that a and b are always in range 0..MOD.
// - We use 32-bit arithmetic in this function.
// - Therefore, a and b must not increase by more than 2^32-MOD without performing a `% MOD`
// operation.
//
// According to Wikipedia, b is calculated as follows for non-incremental checksumming:
// b = n×D1 + (n−1)×D2 + (n−2)×D3 + ... + Dn + n*1 (mod 65521)
// Where n is the number of bytes and Di is the i-th Byte. We need to change this to account
// for the previous values of a and b, as well as treat every input Byte as being 255:
// b_inc = n×255 + (n-1)×255 + ... + 255 + n*65520
// Or in other words:
// b_inc = n*65520 + n(n+1)/2*255
// The max chunk size is thus the largest value of n so that b_inc <= 2^32-65521.
// 2^32-65521 = n*65520 + n(n+1)/2*255
// Plugging this into an equation solver since I can't math gives n = 5552.18..., so 5552.
//
// On top of the optimization outlined above, the algorithm can also be parallelized with a
// bit more work:
//
// Note that b is a linear combination of a vector of input bytes (D1, ..., Dn).
//
// If we fix some value k<N and rewrite indices 1, ..., N as
//
// 1_1, 1_2, ..., 1_k, 2_1, ..., 2_k, ..., (N/k)_k,
//
// then we can express a and b in terms of sums of smaller sequences kb and ka:
//
// ka(j) := D1_j + D2_j + ... + D(N/k)_j where j <= k
// kb(j) := (N/k)*D1_j + (N/k-1)*D2_j + ... + D(N/k)_j where j <= k
//
// a = ka(1) + ka(2) + ... + ka(k) + 1
// b = k*(kb(1) + kb(2) + ... + kb(k)) - 1*ka(2) - ... - (k-1)*ka(k) + N
//
// We use this insight to unroll the main loop and process k=4 bytes at a time.
// The resulting code is highly amenable to SIMD acceleration, although the immediate speedups
// stem from increased pipeline parallelism rather than auto-vectorization.
//
// This technique is described in-depth (here:)[https://software.intel.com/content/www/us/\
// en/develop/articles/fast-computation-of-fletcher-checksums.html]
const MOD: u32 = 65521;
const CHUNK_SIZE: usize = 5552 * 4;
let mut a = u32::from(self.a);
let mut b = u32::from(self.b);
let mut a_vec = U32X4([0; 4]);
let mut b_vec = a_vec;
let (bytes, remainder) = bytes.split_at(bytes.len() - bytes.len() % 4);
// iterate over 4 bytes at a time
let chunk_iter = bytes.chunks_exact(CHUNK_SIZE);
let remainder_chunk = chunk_iter.remainder();
for chunk in chunk_iter {
for byte_vec in chunk.chunks_exact(4) {
let val = U32X4::from(byte_vec);
a_vec += val;
b_vec += a_vec;
}
b += CHUNK_SIZE as u32 * a;
a_vec %= MOD;
b_vec %= MOD;
b %= MOD;
}
// special-case the final chunk because it may be shorter than the rest
for byte_vec in remainder_chunk.chunks_exact(4) {
let val = U32X4::from(byte_vec);
a_vec += val;
b_vec += a_vec;
}
b += remainder_chunk.len() as u32 * a;
a_vec %= MOD;
b_vec %= MOD;
b %= MOD;
// combine the sub-sum results into the main sum
b_vec *= 4;
b_vec.0[1] += MOD - a_vec.0[1];
b_vec.0[2] += (MOD - a_vec.0[2]) * 2;
b_vec.0[3] += (MOD - a_vec.0[3]) * 3;
for &av in a_vec.0.iter() {
a += av;
}
for &bv in b_vec.0.iter() {
b += bv;
}
// iterate over the remaining few bytes in serial
for &byte in remainder.iter() {
a += u32::from(byte);
b += a;
}
self.a = (a % MOD) as u16;
self.b = (b % MOD) as u16;
}
}
#[derive(Copy, Clone)]
struct U32X4([u32; 4]);
impl U32X4 {
fn from(bytes: &[u8]) -> Self {
U32X4([
u32::from(bytes[0]),
u32::from(bytes[1]),
u32::from(bytes[2]),
u32::from(bytes[3]),
])
}
}
impl AddAssign<Self> for U32X4 {
fn add_assign(&mut self, other: Self) {
for (s, o) in self.0.iter_mut().zip(other.0.iter()) {
*s += o;
}
}
}
impl RemAssign<u32> for U32X4 {
fn rem_assign(&mut self, quotient: u32) {
for s in self.0.iter_mut() {
*s %= quotient;
}
}
}
impl MulAssign<u32> for U32X4 {
fn mul_assign(&mut self, rhs: u32) {
for s in self.0.iter_mut() {
*s *= rhs;
}
}
}

287
vendor/adler/src/lib.rs vendored
View file

@ -1,287 +0,0 @@
//! Adler-32 checksum implementation.
//!
//! This implementation features:
//!
//! - Permissively licensed (0BSD) clean-room implementation.
//! - Zero dependencies.
//! - Zero `unsafe`.
//! - Decent performance (3-4 GB/s).
//! - `#![no_std]` support (with `default-features = false`).
#![doc(html_root_url = "https://docs.rs/adler/1.0.2")]
// Deny a few warnings in doctests, since rustdoc `allow`s many warnings by default
#![doc(test(attr(deny(unused_imports, unused_must_use))))]
#![cfg_attr(docsrs, feature(doc_cfg))]
#![warn(missing_debug_implementations)]
#![forbid(unsafe_code)]
#![cfg_attr(not(feature = "std"), no_std)]
#[cfg(not(feature = "std"))]
extern crate core as std;
mod algo;
use std::hash::Hasher;
#[cfg(feature = "std")]
use std::io::{self, BufRead};
/// Adler-32 checksum calculator.
///
/// An instance of this type is equivalent to an Adler-32 checksum: It can be created in the default
/// state via [`new`] (or the provided `Default` impl), or from a precalculated checksum via
/// [`from_checksum`], and the currently stored checksum can be fetched via [`checksum`].
///
/// This type also implements `Hasher`, which makes it easy to calculate Adler-32 checksums of any
/// type that implements or derives `Hash`. This also allows using Adler-32 in a `HashMap`, although
/// that is not recommended (while every checksum is a hash function, they are not necessarily a
/// good one).
///
/// # Examples
///
/// Basic, piecewise checksum calculation:
///
/// ```
/// use adler::Adler32;
///
/// let mut adler = Adler32::new();
///
/// adler.write_slice(&[0, 1, 2]);
/// adler.write_slice(&[3, 4, 5]);
///
/// assert_eq!(adler.checksum(), 0x00290010);
/// ```
///
/// Using `Hash` to process structures:
///
/// ```
/// use std::hash::Hash;
/// use adler::Adler32;
///
/// #[derive(Hash)]
/// struct Data {
/// byte: u8,
/// word: u16,
/// big: u64,
/// }
///
/// let mut adler = Adler32::new();
///
/// let data = Data { byte: 0x1F, word: 0xABCD, big: !0 };
/// data.hash(&mut adler);
///
/// // hash value depends on architecture endianness
/// if cfg!(target_endian = "little") {
/// assert_eq!(adler.checksum(), 0x33410990);
/// }
/// if cfg!(target_endian = "big") {
/// assert_eq!(adler.checksum(), 0x331F0990);
/// }
///
/// ```
///
/// [`new`]: #method.new
/// [`from_checksum`]: #method.from_checksum
/// [`checksum`]: #method.checksum
#[derive(Debug, Copy, Clone)]
pub struct Adler32 {
a: u16,
b: u16,
}
impl Adler32 {
/// Creates a new Adler-32 instance with default state.
#[inline]
pub fn new() -> Self {
Self::default()
}
/// Creates an `Adler32` instance from a precomputed Adler-32 checksum.
///
/// This allows resuming checksum calculation without having to keep the `Adler32` instance
/// around.
///
/// # Example
///
/// ```
/// # use adler::Adler32;
/// let parts = [
/// "rust",
/// "acean",
/// ];
/// let whole = adler::adler32_slice(b"rustacean");
///
/// let mut sum = Adler32::new();
/// sum.write_slice(parts[0].as_bytes());
/// let partial = sum.checksum();
///
/// // ...later
///
/// let mut sum = Adler32::from_checksum(partial);
/// sum.write_slice(parts[1].as_bytes());
/// assert_eq!(sum.checksum(), whole);
/// ```
#[inline]
pub fn from_checksum(sum: u32) -> Self {
Adler32 {
a: sum as u16,
b: (sum >> 16) as u16,
}
}
/// Returns the calculated checksum at this point in time.
#[inline]
pub fn checksum(&self) -> u32 {
(u32::from(self.b) << 16) | u32::from(self.a)
}
/// Adds `bytes` to the checksum calculation.
///
/// If efficiency matters, this should be called with Byte slices that contain at least a few
/// thousand Bytes.
pub fn write_slice(&mut self, bytes: &[u8]) {
self.compute(bytes);
}
}
impl Default for Adler32 {
#[inline]
fn default() -> Self {
Adler32 { a: 1, b: 0 }
}
}
impl Hasher for Adler32 {
#[inline]
fn finish(&self) -> u64 {
u64::from(self.checksum())
}
fn write(&mut self, bytes: &[u8]) {
self.write_slice(bytes);
}
}
/// Calculates the Adler-32 checksum of a byte slice.
///
/// This is a convenience function around the [`Adler32`] type.
///
/// [`Adler32`]: struct.Adler32.html
pub fn adler32_slice(data: &[u8]) -> u32 {
let mut h = Adler32::new();
h.write_slice(data);
h.checksum()
}
/// Calculates the Adler-32 checksum of a `BufRead`'s contents.
///
/// The passed `BufRead` implementor will be read until it reaches EOF (or until it reports an
/// error).
///
/// If you only have a `Read` implementor, you can wrap it in `std::io::BufReader` before calling
/// this function.
///
/// # Errors
///
/// Any error returned by the reader are bubbled up by this function.
///
/// # Examples
///
/// ```no_run
/// # fn run() -> Result<(), Box<dyn std::error::Error>> {
/// use adler::adler32;
///
/// use std::fs::File;
/// use std::io::BufReader;
///
/// let file = File::open("input.txt")?;
/// let mut file = BufReader::new(file);
///
/// adler32(&mut file)?;
/// # Ok(()) }
/// # fn main() { run().unwrap() }
/// ```
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
pub fn adler32<R: BufRead>(mut reader: R) -> io::Result<u32> {
let mut h = Adler32::new();
loop {
let len = {
let buf = reader.fill_buf()?;
if buf.is_empty() {
return Ok(h.checksum());
}
h.write_slice(buf);
buf.len()
};
reader.consume(len);
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn zeroes() {
assert_eq!(adler32_slice(&[]), 1);
assert_eq!(adler32_slice(&[0]), 1 | 1 << 16);
assert_eq!(adler32_slice(&[0, 0]), 1 | 2 << 16);
assert_eq!(adler32_slice(&[0; 100]), 0x00640001);
assert_eq!(adler32_slice(&[0; 1024]), 0x04000001);
assert_eq!(adler32_slice(&[0; 1024 * 1024]), 0x00f00001);
}
#[test]
fn ones() {
assert_eq!(adler32_slice(&[0xff; 1024]), 0x79a6fc2e);
assert_eq!(adler32_slice(&[0xff; 1024 * 1024]), 0x8e88ef11);
}
#[test]
fn mixed() {
assert_eq!(adler32_slice(&[1]), 2 | 2 << 16);
assert_eq!(adler32_slice(&[40]), 41 | 41 << 16);
assert_eq!(adler32_slice(&[0xA5; 1024 * 1024]), 0xd5009ab1);
}
/// Example calculation from https://en.wikipedia.org/wiki/Adler-32.
#[test]
fn wiki() {
assert_eq!(adler32_slice(b"Wikipedia"), 0x11E60398);
}
#[test]
fn resume() {
let mut adler = Adler32::new();
adler.write_slice(&[0xff; 1024]);
let partial = adler.checksum();
assert_eq!(partial, 0x79a6fc2e); // from above
adler.write_slice(&[0xff; 1024 * 1024 - 1024]);
assert_eq!(adler.checksum(), 0x8e88ef11); // from above
// Make sure that we can resume computing from the partial checksum via `from_checksum`.
let mut adler = Adler32::from_checksum(partial);
adler.write_slice(&[0xff; 1024 * 1024 - 1024]);
assert_eq!(adler.checksum(), 0x8e88ef11); // from above
}
#[cfg(feature = "std")]
#[test]
fn bufread() {
use std::io::BufReader;
fn test(data: &[u8], checksum: u32) {
// `BufReader` uses an 8 KB buffer, so this will test buffer refilling.
let mut buf = BufReader::new(data);
let real_sum = adler32(&mut buf).unwrap();
assert_eq!(checksum, real_sum);
}
test(&[], 1);
test(&[0; 1024], 0x04000001);
test(&[0; 1024 * 1024], 0x00f00001);
test(&[0xA5; 1024 * 1024], 0xd5009ab1);
}
}

1
vendor/android_system_properties/.cargo-checksum.json vendored
View file

@ -1 +0,0 @@
{"files":{"CONTRIBUTING.md":"0834cb3b5e092977688d73d219a05bed23ae0ecb54b6d6e5d866ce07f6583b5e","Cargo.lock":"37ffc00dbbbec58fd27b4f4cb597e5402d6cf615ce0458f62a73a7f0d987e5bd","Cargo.toml":"e9e8c037cdef7adc9794b17c13e5a014421524d67ea5048bc09cf70ef13c782c","LICENSE-APACHE":"216486f29671a4262efe32af6d84a75bef398127f8c5f369b5c8305983887a06","LICENSE-MIT":"80f275e90d799911ed3830a7f242a2ef5a4ade2092fe0aa07bfb2d2cf2f2b95e","README.md":"aba8ff5dbd0712326d97d32bc6a3b66b24d1980a446c238f7e14b96784766cd1","examples/time_zone.rs":"8edb32a946ef2680146ba9ac16c233dd94391ac9f98464e9fb6f87d3954b72a9","src/lib.rs":"0004133d6c3805bf449e7183d2931e9640167511bea6cd12b400805073c4305d"},"package":"819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"}

40
vendor/android_system_properties/CONTRIBUTING.md vendored
View file

@ -1,40 +0,0 @@
# Contributing
Contributions are very much welcome. Here are the guidelines if you are thinking of helping us:
## Contributions
Contributions should be made in the form of GitHub pull requests.
Each pull request will be reviewed by a core contributor (someone with
permission to land patches) and either landed in the main tree or
given feedback for changes that would be required.
Should you wish to work on an issue, please claim it first by commenting on
the GitHub issue that you want to work on it. This is to prevent duplicated
efforts from contributors on the same issue.
## Pull Request Checklist
- Branch from the master branch and, if needed, rebase to the current master
branch before submitting your pull request. If it doesn't merge cleanly with
master you may be asked to rebase your changes.
- Commits should be as small as possible, while ensuring that each commit is
correct independently (i.e., each commit should compile and pass tests).
- If your patch is not getting reviewed or you need a specific person to review
it, you can @-reply a reviewer asking for a review in the pull request or a
comment.
- Whenever applicable, add tests relevant to the fixed bug or new feature.
For specific git instructions, see [GitHub workflow 101](https://github.com/servo/servo/wiki/Github-workflow).
## Conduct
We follow the [Rust Code of Conduct](http://www.rust-lang.org/conduct.html).
For escalation or moderation issues, please contact Nical (nical@fastmail.com) instead of the Rust moderation team.
## License
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be licensed dual MIT/Apache 2, without any additional terms or conditions.

16
vendor/android_system_properties/Cargo.lock generated vendored
View file

@ -1,16 +0,0 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "android_system_properties"
version = "0.1.5"
dependencies = [
"libc",
]
[[package]]
name = "libc"
version = "0.2.126"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"

36
vendor/android_system_properties/Cargo.toml vendored
View file

@ -1,36 +0,0 @@
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
name = "android_system_properties"
version = "0.1.5"
authors = ["Nicolas Silva <nical@fastmail.com>"]
description = "Minimal Android system properties wrapper"
homepage = "https://github.com/nical/android_system_properties"
documentation = "https://docs.rs/android_system_properties"
readme = "README.md"
keywords = ["android"]
license = "MIT/Apache-2.0"
repository = "https://github.com/nical/android_system_properties"
[package.metadata.docs.rs]
targets = [
"arm-linux-androideabi",
"armv7-linux-androideabi",
"aarch64-linux-android",
"i686-linux-android",
"x86_64-linux-android",
"x86_64-unknown-linux-gnu",
]
[dependencies.libc]
version = "0.2.126"

13
vendor/android_system_properties/LICENSE-APACHE vendored
View file

@ -1,13 +0,0 @@
Copyright 2016 Nicolas Silva
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

20
vendor/android_system_properties/LICENSE-MIT vendored
View file

@ -1,20 +0,0 @@
The MIT License (MIT)
Copyright (c) 2013 Nicolas Silva
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

36
vendor/android_system_properties/README.md vendored
View file

@ -1,36 +0,0 @@
# android_system_properties
A thin rust wrapper for Android system properties.
This crate is similar to the `android-properties` crate with the exception that
the necessary Android libc symbols are loaded dynamically instead of linked
statically. In practice this means that the same binary will work with old and
new versions of Android, even though the API for reading system properties changed
around Android L.
## Example
```rust
use android_system_properties::AndroidSystemProperties;
let properties = AndroidSystemProperties::new();
if let Some(value) = properties.get("persist.sys.timezone") {
println!("{}", value);
}
```
## Listing and setting properties
For the sake of simplicity this crate currently only contains what's needed by wgpu.
The implementations for listing and setting properties can be added back if anyone needs
them (let me know by filing an issue).
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.

9
vendor/android_system_properties/examples/time_zone.rs vendored
View file

@ -1,9 +0,0 @@
/// Prints the current time zone, e.g. "Europe/Paris".
use android_system_properties::AndroidSystemProperties;
fn main() {
let android_system_properties = AndroidSystemProperties::new();
let tz = android_system_properties.get("persist.sys.timezone");
println!("Your time zone is: {}", tz.as_deref().unwrap_or("<unknown>"));
}

221
vendor/android_system_properties/src/lib.rs vendored
View file

@ -1,221 +0,0 @@
//! A thin rust wrapper for Android system properties.
//!
//! This crate is similar to the `android-properties` crate with the exception that
//! the necessary Android libc symbols are loaded dynamically instead of linked
//! statically. In practice this means that the same binary will work with old and
//! new versions of Android, even though the API for reading system properties changed
//! around Android L.
//!
//! ## Example
//!
//! ```rust
//! use android_system_properties::AndroidSystemProperties;
//!
//! let properties = AndroidSystemProperties::new();
//!
//! if let Some(value) = properties.get("persist.sys.timezone") {
//! println!("{}", value);
//! }
//! ```
//!
//! ## Listing and setting properties
//!
//! For the sake of simplicity this crate currently only contains what's needed by wgpu.
//! The implementations for listing and setting properties can be added back if anyone needs
//! them (let me know by filing an issue).
//!
//! ## License
//!
//! Licensed under either of
//!
//! * Apache License, Version 2.0 ([LICENSE-APACHE] or <http://www.apache.org/licenses/LICENSE-2.0>)
//! * MIT license ([LICENSE-MIT] or <http://opensource.org/licenses/MIT>)
//!
//! at your option.
//!
//! [LICENSE-APACHE]: https://github.com/nical/android_system_properties/blob/804681c5c1c93d4fab29c1a2f47b7d808dc70fd3/LICENSE-APACHE
//! [LICENSE-MIT]: https://github.com/nical/android_system_properties/blob/804681c5c1c93d4fab29c1a2f47b7d808dc70fd3/LICENSE-MIT
use std::{
ffi::{CStr, CString},
os::raw::{c_char, c_int, c_void},
};
#[cfg(target_os = "android")]
use std::mem;
unsafe fn property_callback(payload: *mut String, _name: *const c_char, value: *const c_char, _serial: u32) {
let cvalue = CStr::from_ptr(value);
(*payload) = cvalue.to_str().unwrap().to_string();
}
type Callback = unsafe fn(*mut String, *const c_char, *const c_char, u32);
type SystemPropertyGetFn = unsafe extern "C" fn(*const c_char, *mut c_char) -> c_int;
type SystemPropertyFindFn = unsafe extern "C" fn(*const c_char) -> *const c_void;
type SystemPropertyReadCallbackFn = unsafe extern "C" fn(*const c_void, Callback, *mut String) -> *const c_void;
#[derive(Debug)]
/// An object that can retrieve android system properties.
///
/// ## Example
///
/// ```
/// use android_system_properties::AndroidSystemProperties;
///
/// let properties = AndroidSystemProperties::new();
///
/// if let Some(value) = properties.get("persist.sys.timezone") {
/// println!("{}", value);
/// }
/// ```
pub struct AndroidSystemProperties {
libc_so: *mut c_void,
get_fn: Option<SystemPropertyGetFn>,
find_fn: Option<SystemPropertyFindFn>,
read_callback_fn: Option<SystemPropertyReadCallbackFn>,
}
unsafe impl Send for AndroidSystemProperties {}
unsafe impl Sync for AndroidSystemProperties {}
impl AndroidSystemProperties {
#[cfg(not(target_os = "android"))]
/// Create an entry point for accessing Android properties.
pub fn new() -> Self {
AndroidSystemProperties {
libc_so: std::ptr::null_mut(),
find_fn: None,
read_callback_fn: None,
get_fn: None,
}
}
#[cfg(target_os = "android")]
/// Create an entry point for accessing Android properties.
pub fn new() -> Self {
let libc_so = unsafe { libc::dlopen(b"libc.so\0".as_ptr().cast(), libc::RTLD_NOLOAD) };
let mut properties = AndroidSystemProperties {
libc_so,
find_fn: None,
read_callback_fn: None,
get_fn: None,
};
if libc_so.is_null() {
return properties;
}
unsafe fn load_fn(libc_so: *mut c_void, name: &[u8]) -> Option<*const c_void> {
let fn_ptr = libc::dlsym(libc_so, name.as_ptr().cast());
if fn_ptr.is_null() {
return None;
}
Some(fn_ptr)
}
unsafe {
properties.read_callback_fn = load_fn(libc_so, b"__system_property_read_callback\0")
.map(|raw| mem::transmute::<*const c_void, SystemPropertyReadCallbackFn>(raw));
properties.find_fn = load_fn(libc_so, b"__system_property_find\0")
.map(|raw| mem::transmute::<*const c_void, SystemPropertyFindFn>(raw));
// Fallback for old versions of Android.
if properties.read_callback_fn.is_none() || properties.find_fn.is_none() {
properties.get_fn = load_fn(libc_so, b"__system_property_get\0")
.map(|raw| mem::transmute::<*const c_void, SystemPropertyGetFn>(raw));
}
}
properties
}
/// Retrieve a system property.
///
/// Returns None if the operation fails.
///
/// # Example
///
/// ```
/// # use android_system_properties::AndroidSystemProperties;
/// let properties = AndroidSystemProperties::new();
///
/// if let Some(value) = properties.get("persist.sys.timezone") {
/// println!("{}", value);
/// }
/// ```
pub fn get(&self, name: &str) -> Option<String> {
let cname = CString::new(name).ok()?;
self.get_from_cstr(&cname)
}
/// Retrieve a system property using a [`CStr`] key.
///
/// Returns None if the operation fails.
///
/// # Example
///
/// ```
/// # use android_system_properties::AndroidSystemProperties;
/// # use std::ffi::CStr;
/// let properties = AndroidSystemProperties::new();
///
/// let key = unsafe { CStr::from_bytes_with_nul_unchecked(b"persist.sys.timezone\0") };
/// if let Some(value) = properties.get_from_cstr(key) {
/// println!("{}", value);
/// }
/// ```
pub fn get_from_cstr(&self, cname: &std::ffi::CStr) -> Option<String> {
// If available, use the recommended approach to accessing properties (Android L and onward).
if let (Some(find_fn), Some(read_callback_fn)) = (self.find_fn, self.read_callback_fn) {
let info = unsafe { (find_fn)(cname.as_ptr()) };
if info.is_null() {
return None;
}
let mut result = String::new();
unsafe {
(read_callback_fn)(info, property_callback, &mut result);
}
return Some(result);
}
// Fall back to the older approach.
if let Some(get_fn) = self.get_fn {
// The constant is PROP_VALUE_MAX in Android's libc/include/sys/system_properties.h
const PROPERTY_VALUE_MAX: usize = 92;
let mut buffer: Vec<u8> = Vec::with_capacity(PROPERTY_VALUE_MAX);
let raw = buffer.as_mut_ptr() as *mut c_char;
let len = unsafe { (get_fn)(cname.as_ptr(), raw) };
if len > 0 {
assert!(len as usize <= buffer.capacity());
unsafe { buffer.set_len(len as usize); }
String::from_utf8(buffer).ok()
} else {
None
}
} else {
None
}
}
}
impl Drop for AndroidSystemProperties {
fn drop(&mut self) {
if !self.libc_so.is_null() {
unsafe {
libc::dlclose(self.libc_so);
}
}
}
}

1
vendor/anyhow/.cargo-checksum.json vendored
View file

@ -1 +0,0 @@
{"files":{"Cargo.toml":"08309b6f7ceb1c1d34eef18cf248e38e752124505448f5d76505f0e0544c35eb","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"62fc2a591c37e781f76fe4d89bcd964eca4fbde246bc43cd4e2fe9db2d30ee70","build.rs":"88bf7100143c79c0af683da7f28deaac031c9b9b213a6426560dc089b0ba45aa","rust-toolchain.toml":"6bbb61302978c736b2da03e4fb40e3beab908f85d533ab46fd541e637b5f3e0f","src/backtrace.rs":"5b4103a7d24d6f438a64b8cc0fafe28d55fc0ca090368174ce44d64e3940badd","src/chain.rs":"6edefc5f3c7d69683095862e54e3bb56faba5b3387bf2eeaed429da090007a0a","src/context.rs":"e129c580b5c2f3017dd977e4122a93f9fbc04b451e930d68f390f51e6be3bdcb","src/ensure.rs":"498bc9c7fb8b93168ed12f532cb97df6ccdda9ce25371586d7f5b1b1c98a14bf","src/error.rs":"e45d4dcfe64b1823b42fbf9bb260e6437987e8c2d51f92434db9d808b36e700a","src/fmt.rs":"c2d4aad6ce20625a70a7c091e3087b6a2c19a4a87c7a12edb4c98978307245ea","src/kind.rs":"332854c5eb07d44447c356a2e7dc585634b0da1ffbbfa81269c369deaefbc247","src/lib.rs":"ee210d5c7af74242360aa4651f9f58cf10784c2d77256bfed8ca6c796b0b54c2","src/macros.rs":"dd35f2ec2a0a25e4504fb04bcd42f6d0963bc0035aaaefc412f5ee1d78945fe1","src/ptr.rs":"f4e28bc9feba1e84160ca9d185008a51b5d72e168e6546f3e942f4258c361e19","src/wrapper.rs":"ff3ad72065a30cc32e9acb0614a30703c49c57b941a335c348b6439af684316b","tests/common/mod.rs":"f9088c2d7afafa64ff730b629272045b776bfafc2f5957508242da630635f2e1","tests/compiletest.rs":"022a8e400ef813d7ea1875b944549cee5125f6a995dc33e93b48cba3e1b57bd1","tests/drop/mod.rs":"08c3e553c1cc0d2dbd936fc45f4b5b1105057186affd6865e8d261e05f0f0646","tests/test_autotrait.rs":"981e792db353be2f14c7a1cabe43b5f1329c168cb7679077cc2be786a0920d48","tests/test_backtrace.rs":"0e50edbb33b6bd07ba89ff3db72fb7c688ba2a4371fccdbbb20309ab02948b6a","tests/test_boxed.rs":"6b26db0e2eb72afe9af7352ea820837aab90f8d486294616dd5dc34c1b94038c","tests/test_chain.rs":"d5e90e3eba58abc60d241d3aade39e0b8d4006d9a14f3cf015d3d925160b5812","tests/test_context.rs":"8409c53b328562c11e822bd6c3cd17e0d4d50b9bbb8fc3617333fd77303a6a33","tests/test_convert.rs":"7e7a8b4772a427a911014ac4d1083f9519000e786177f898808980dd9bdfde61","tests/test_downcast.rs":"797e69a72d125758c4c4897e5dc776d549d52cc9a6a633e0a33193f588a62b88","tests/test_ensure.rs":"c68ea8e3db9e887ce3a7314676e7ff5080aac0a37bc12cae9c6652dead93bcfa","tests/test_ffi.rs":"d0cb4c1d6d9154090982dee72ae3ebe05a5981f976058c3250f1c9da5a45edef","tests/test_fmt.rs":"17572596f257aac9aa2ec4620e292ca6a954128b94772bb948399fab53832e70","tests/test_macros.rs":"11f05010bc9b16319884c1286444100e30cddc2ecd1ffe5e0fd3fee5ffb32683","tests/test_repr.rs":"dbb9b04ddbe1ab31eb5331ea69f05bb3a147299da2275a3d4dcc92947b5591b9","tests/test_source.rs":"b80723cf635a4f8c4df21891b34bfab9ed2b2aa407e7a2f826d24e334cd5f88e","tests/ui/chained-comparison.rs":"6504b03d95b5acc232a7f4defc9f343b2be6733bf475fa0992e8e6545b912bd4","tests/ui/chained-comparison.stderr":"7f1d0a8c251b0ede2d30b3087ec157fc660945c97a642c4a5acf5a14ec58de34","tests/ui/empty-ensure.rs":"ab5bf37c846a0d689f26ce9257a27228411ed64154f9c950f1602d88a355d94b","tests/ui/empty-ensure.stderr":"315782f5f4246290fe190e3767b22c3dcaffaabc19c5ace0373537d53e765278","tests/ui/must-use.rs":"fb59860b43f673bf4a430a6036ba463e95028844d8dd4243cfe5ebc7f2be582f","tests/ui/must-use.stderr":"c2848c5f254b4c061eea6714d9baf709924aba06619eaf2a8b3aee1266b75f9e","tests/ui/no-impl.rs":"fab6cbf2f6ea510b86f567dfb3b7c31250a9fd71ae5d110dbb9188be569ec593","tests/ui/no-impl.stderr":"04415aeaa14995f47f06f35fb1f6971d332d2110aabca920c30ab0803d6a0a5e","tests/ui/temporary-value.rs":"4dcc96271b2403e6372cf4cfc813445e5ce4365fc6e156b6bc38274098499a70","tests/ui/temporary-value.stderr":"171f6c1c962503855480696e5d39e68946ec2a027b61a6f36ca1ad1b40265c5d","tests/ui/wrong-interpolation.rs":"9c44d4674c2dccd27b9dedd03341346ec02d993b41793ee89b5755202e7e367e","tests/ui/wrong-interpolation.stderr":"301e60e2eb9401782c7dc0b3580613a4cb2aafd4cc8065734a630a62e1161aa5"},"package":"2cb2f989d18dd141ab8ae82f64d1a8cdd37e0840f73a406896cf5e99502fab61"}

66
vendor/anyhow/Cargo.toml vendored
View file

@ -1,66 +0,0 @@
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
rust-version = "1.39"
name = "anyhow"
version = "1.0.68"
authors = ["David Tolnay <dtolnay@gmail.com>"]
description = "Flexible concrete Error type built on std::error::Error"
documentation = "https://docs.rs/anyhow"
readme = "README.md"
keywords = [
"error",
"error-handling",
]
categories = [
"rust-patterns",
"no-std",
]
license = "MIT OR Apache-2.0"
repository = "https://github.com/dtolnay/anyhow"
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]
rustdoc-args = [
"--cfg",
"doc_cfg",
]
[lib]
doc-scrape-examples = false
[dependencies.backtrace]
version = "0.3.51"
optional = true
[dev-dependencies.futures]
version = "0.3"
default-features = false
[dev-dependencies.rustversion]
version = "1.0.6"
[dev-dependencies.syn]
version = "1.0"
features = ["full"]
[dev-dependencies.thiserror]
version = "1.0"
[dev-dependencies.trybuild]
version = "1.0.66"
features = ["diff"]
[features]
default = ["std"]
std = []

201
vendor/anyhow/LICENSE-APACHE vendored
View file

@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

23
vendor/anyhow/LICENSE-MIT vendored
View file

@ -1,23 +0,0 @@
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

182
vendor/anyhow/README.md vendored
View file

@ -1,182 +0,0 @@
Anyhow&ensp;¯\\\_(°ペ)\_/¯
==========================
[<img alt="github" src="https://img.shields.io/badge/github-dtolnay/anyhow-8da0cb?style=for-the-badge&labelColor=555555&logo=github" height="20">](https://github.com/dtolnay/anyhow)
[<img alt="crates.io" src="https://img.shields.io/crates/v/anyhow.svg?style=for-the-badge&color=fc8d62&logo=rust" height="20">](https://crates.io/crates/anyhow)
[<img alt="docs.rs" src="https://img.shields.io/badge/docs.rs-anyhow-66c2a5?style=for-the-badge&labelColor=555555&logo=docs.rs" height="20">](https://docs.rs/anyhow)
[<img alt="build status" src="https://img.shields.io/github/actions/workflow/status/dtolnay/anyhow/ci.yml?branch=master&style=for-the-badge" height="20">](https://github.com/dtolnay/anyhow/actions?query=branch%3Amaster)
This library provides [`anyhow::Error`][Error], a trait object based error type
for easy idiomatic error handling in Rust applications.
[Error]: https://docs.rs/anyhow/1.0/anyhow/struct.Error.html
```toml
[dependencies]
anyhow = "1.0"
```
*Compiler support: requires rustc 1.39+*
<br>
## Details
- Use `Result<T, anyhow::Error>`, or equivalently `anyhow::Result<T>`, as the
return type of any fallible function.
Within the function, use `?` to easily propagate any error that implements the
`std::error::Error` trait.
```rust
use anyhow::Result;
fn get_cluster_info() -> Result<ClusterMap> {
let config = std::fs::read_to_string("cluster.json")?;
let map: ClusterMap = serde_json::from_str(&config)?;
Ok(map)
}
```
- Attach context to help the person troubleshooting the error understand where
things went wrong. A low-level error like "No such file or directory" can be
annoying to debug without more context about what higher level step the
application was in the middle of.
```rust
use anyhow::{Context, Result};
fn main() -> Result<()> {
...
it.detach().context("Failed to detach the important thing")?;
let content = std::fs::read(path)
.with_context(|| format!("Failed to read instrs from {}", path))?;
...
}
```
```console
Error: Failed to read instrs from ./path/to/instrs.json
Caused by:
No such file or directory (os error 2)
```
- Downcasting is supported and can be by value, by shared reference, or by
mutable reference as needed.
```rust
// If the error was caused by redaction, then return a
// tombstone instead of the content.
match root_cause.downcast_ref::<DataStoreError>() {
Some(DataStoreError::Censored(_)) => Ok(Poll::Ready(REDACTED_CONTENT)),
None => Err(error),
}
```
- If using the nightly channel, or stable with `features = ["backtrace"]`, a
backtrace is captured and printed with the error if the underlying error type
does not already provide its own. In order to see backtraces, they must be
enabled through the environment variables described in [`std::backtrace`]:
- If you want panics and errors to both have backtraces, set
`RUST_BACKTRACE=1`;
- If you want only errors to have backtraces, set `RUST_LIB_BACKTRACE=1`;
- If you want only panics to have backtraces, set `RUST_BACKTRACE=1` and
`RUST_LIB_BACKTRACE=0`.
The tracking issue for this feature is [rust-lang/rust#53487].
[`std::backtrace`]: https://doc.rust-lang.org/std/backtrace/index.html#environment-variables
[rust-lang/rust#53487]: https://github.com/rust-lang/rust/issues/53487
- Anyhow works with any error type that has an impl of `std::error::Error`,
including ones defined in your crate. We do not bundle a `derive(Error)` macro
but you can write the impls yourself or use a standalone macro like
[thiserror].
```rust
use thiserror::Error;
#[derive(Error, Debug)]
pub enum FormatError {
#[error("Invalid header (expected {expected:?}, got {found:?})")]
InvalidHeader {
expected: String,
found: String,
},
#[error("Missing attribute: {0}")]
MissingAttribute(String),
}
```
- One-off error messages can be constructed using the `anyhow!` macro, which
supports string interpolation and produces an `anyhow::Error`.
```rust
return Err(anyhow!("Missing attribute: {}", missing));
```
A `bail!` macro is provided as a shorthand for the same early return.
```rust
bail!("Missing attribute: {}", missing);
```
<br>
## No-std support
In no_std mode, the same API is almost all available and works the same way. To
depend on Anyhow in no_std mode, disable our default enabled "std" feature in
Cargo.toml. A global allocator is required.
```toml
[dependencies]
anyhow = { version = "1.0", default-features = false }
```
Since the `?`-based error conversions would normally rely on the
`std::error::Error` trait which is only available through std, no_std mode will
require an explicit `.map_err(Error::msg)` when working with a non-Anyhow error
type inside a function that returns Anyhow's error type.
<br>
## Comparison to failure
The `anyhow::Error` type works something like `failure::Error`, but unlike
failure ours is built around the standard library's `std::error::Error` trait
rather than a separate trait `failure::Fail`. The standard library has adopted
the necessary improvements for this to be possible as part of [RFC 2504].
[RFC 2504]: https://github.com/rust-lang/rfcs/blob/master/text/2504-fix-error.md
<br>
## Comparison to thiserror
Use Anyhow if you don't care what error type your functions return, you just
want it to be easy. This is common in application code. Use [thiserror] if you
are a library that wants to design your own dedicated error type(s) so that on
failures the caller gets exactly the information that you choose.
[thiserror]: https://github.com/dtolnay/thiserror
<br>
#### License
<sup>
Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
2.0</a> or <a href="LICENSE-MIT">MIT license</a> at your option.
</sup>
<br>
<sub>
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
be dual licensed as above, without any additional terms or conditions.
</sub>

131
vendor/anyhow/build.rs vendored
View file

@ -1,131 +0,0 @@
#![allow(clippy::option_if_let_else)]
use std::env;
use std::fs;
use std::path::Path;
use std::process::{Command, ExitStatus, Stdio};
use std::str;
#[cfg(all(feature = "backtrace", not(feature = "std")))]
compile_error! {
"`backtrace` feature without `std` feature is not supported"
}
// This code exercises the surface area that we expect of the std Backtrace
// type. If the current toolchain is able to compile it, we go ahead and use
// backtrace in anyhow.
const PROBE: &str = r#"
#![feature(error_generic_member_access, provide_any)]
use std::any::{Demand, Provider};
use std::backtrace::{Backtrace, BacktraceStatus};
use std::error::Error;
use std::fmt::{self, Display};
#[derive(Debug)]
struct E {
backtrace: Backtrace,
}
impl Display for E {
fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
impl Error for E {
fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
demand.provide_ref(&self.backtrace);
}
}
struct P;
impl Provider for P {
fn provide<'a>(&'a self, _demand: &mut Demand<'a>) {}
}
const _: fn() = || {
let backtrace: Backtrace = Backtrace::capture();
let status: BacktraceStatus = backtrace.status();
match status {
BacktraceStatus::Captured | BacktraceStatus::Disabled | _ => {}
}
};
const _: fn(&dyn Error) -> Option<&Backtrace> = |err| err.request_ref::<Backtrace>();
"#;
fn main() {
if cfg!(feature = "std") {
match compile_probe() {
Some(status) if status.success() => println!("cargo:rustc-cfg=backtrace"),
_ => {}
}
}
let rustc = match rustc_minor_version() {
Some(rustc) => rustc,
None => return,
};
if rustc < 51 {
println!("cargo:rustc-cfg=anyhow_no_ptr_addr_of");
}
if rustc < 52 {
println!("cargo:rustc-cfg=anyhow_no_fmt_arguments_as_str");
}
}
fn compile_probe() -> Option<ExitStatus> {
let rustc = env::var_os("RUSTC")?;
let out_dir = env::var_os("OUT_DIR")?;
let probefile = Path::new(&out_dir).join("probe.rs");
fs::write(&probefile, PROBE).ok()?;
// Make sure to pick up Cargo rustc configuration.
let mut cmd = if let Some(wrapper) = env::var_os("RUSTC_WRAPPER") {
let mut cmd = Command::new(wrapper);
// The wrapper's first argument is supposed to be the path to rustc.
cmd.arg(rustc);
cmd
} else {
Command::new(rustc)
};
cmd.stderr(Stdio::null())
.arg("--edition=2018")
.arg("--crate-name=anyhow_build")
.arg("--crate-type=lib")
.arg("--emit=metadata")
.arg("--out-dir")
.arg(out_dir)
.arg(probefile);
if let Some(target) = env::var_os("TARGET") {
cmd.arg("--target").arg(target);
}
// If Cargo wants to set RUSTFLAGS, use that.
if let Ok(rustflags) = env::var("CARGO_ENCODED_RUSTFLAGS") {
if !rustflags.is_empty() {
for arg in rustflags.split('\x1f') {
cmd.arg(arg);
}
}
}
cmd.status().ok()
}
fn rustc_minor_version() -> Option<u32> {
let rustc = env::var_os("RUSTC")?;
let output = Command::new(rustc).arg("--version").output().ok()?;
let version = str::from_utf8(&output.stdout).ok()?;
let mut pieces = version.split('.');
if pieces.next() != Some("rustc 1") {
return None;
}
pieces.next()?.parse().ok()
}

2
vendor/anyhow/rust-toolchain.toml vendored
View file

@ -1,2 +0,0 @@
[toolchain]
components = ["rust-src"]

401
vendor/anyhow/src/backtrace.rs vendored
View file

@ -1,401 +0,0 @@
#[cfg(backtrace)]
pub(crate) use std::backtrace::{Backtrace, BacktraceStatus};
#[cfg(all(not(backtrace), feature = "backtrace"))]
pub(crate) use self::capture::{Backtrace, BacktraceStatus};
#[cfg(not(any(backtrace, feature = "backtrace")))]
pub(crate) enum Backtrace {}
#[cfg(backtrace)]
macro_rules! impl_backtrace {
() => {
std::backtrace::Backtrace
};
}
#[cfg(all(not(backtrace), feature = "backtrace"))]
macro_rules! impl_backtrace {
() => {
impl core::fmt::Debug + core::fmt::Display
};
}
#[cfg(any(backtrace, feature = "backtrace"))]
macro_rules! backtrace {
() => {
Some(crate::backtrace::Backtrace::capture())
};
}
#[cfg(not(any(backtrace, feature = "backtrace")))]
macro_rules! backtrace {
() => {
None
};
}
#[cfg(backtrace)]
macro_rules! backtrace_if_absent {
($err:expr) => {
match ($err as &dyn std::error::Error).request_ref::<std::backtrace::Backtrace>() {
Some(_) => None,
None => backtrace!(),
}
};
}
#[cfg(all(feature = "std", not(backtrace), feature = "backtrace"))]
macro_rules! backtrace_if_absent {
($err:expr) => {
backtrace!()
};
}
#[cfg(all(feature = "std", not(backtrace), not(feature = "backtrace")))]
macro_rules! backtrace_if_absent {
($err:expr) => {
None
};
}
#[cfg(all(not(backtrace), feature = "backtrace"))]
mod capture {
use backtrace::{BacktraceFmt, BytesOrWideString, Frame, PrintFmt, SymbolName};
use core::cell::UnsafeCell;
use core::fmt::{self, Debug, Display};
use core::sync::atomic::{AtomicUsize, Ordering};
use std::borrow::Cow;
use std::env;
use std::path::{self, Path, PathBuf};
use std::sync::Once;
pub(crate) struct Backtrace {
inner: Inner,
}
pub(crate) enum BacktraceStatus {
Unsupported,
Disabled,
Captured,
}
enum Inner {
Unsupported,
Disabled,
Captured(LazilyResolvedCapture),
}
struct Capture {
actual_start: usize,
resolved: bool,
frames: Vec<BacktraceFrame>,
}
struct BacktraceFrame {
frame: Frame,
symbols: Vec<BacktraceSymbol>,
}
struct BacktraceSymbol {
name: Option<Vec<u8>>,
filename: Option<BytesOrWide>,
lineno: Option<u32>,
colno: Option<u32>,
}
enum BytesOrWide {
Bytes(Vec<u8>),
Wide(Vec<u16>),
}
impl Debug for Backtrace {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
let capture = match &self.inner {
Inner::Unsupported => return fmt.write_str("<unsupported>"),
Inner::Disabled => return fmt.write_str("<disabled>"),
Inner::Captured(c) => c.force(),
};
let frames = &capture.frames[capture.actual_start..];
write!(fmt, "Backtrace ")?;
let mut dbg = fmt.debug_list();
for frame in frames {
if frame.frame.ip().is_null() {
continue;
}
dbg.entries(&frame.symbols);
}
dbg.finish()
}
}
impl Debug for BacktraceFrame {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
let mut dbg = fmt.debug_list();
dbg.entries(&self.symbols);
dbg.finish()
}
}
impl Debug for BacktraceSymbol {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
write!(fmt, "{{ ")?;
if let Some(fn_name) = self.name.as_ref().map(|b| SymbolName::new(b)) {
write!(fmt, "fn: \"{:#}\"", fn_name)?;
} else {
write!(fmt, "fn: <unknown>")?;
}
if let Some(fname) = self.filename.as_ref() {
write!(fmt, ", file: \"{:?}\"", fname)?;
}
if let Some(line) = self.lineno {
write!(fmt, ", line: {:?}", line)?;
}
write!(fmt, " }}")
}
}
impl Debug for BytesOrWide {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
output_filename(
fmt,
match self {
BytesOrWide::Bytes(w) => BytesOrWideString::Bytes(w),
BytesOrWide::Wide(w) => BytesOrWideString::Wide(w),
},
PrintFmt::Short,
env::current_dir().as_ref().ok(),
)
}
}
impl Backtrace {
fn enabled() -> bool {
static ENABLED: AtomicUsize = AtomicUsize::new(0);
match ENABLED.load(Ordering::Relaxed) {
0 => {}
1 => return false,
_ => return true,
}
let enabled = match env::var_os("RUST_LIB_BACKTRACE") {
Some(s) => s != "0",
None => match env::var_os("RUST_BACKTRACE") {
Some(s) => s != "0",
None => false,
},
};
ENABLED.store(enabled as usize + 1, Ordering::Relaxed);
enabled
}
#[inline(never)] // want to make sure there's a frame here to remove
pub(crate) fn capture() -> Backtrace {
if Backtrace::enabled() {
Backtrace::create(Backtrace::capture as usize)
} else {
let inner = Inner::Disabled;
Backtrace { inner }
}
}
// Capture a backtrace which starts just before the function addressed
// by `ip`
fn create(ip: usize) -> Backtrace {
let mut frames = Vec::new();
let mut actual_start = None;
backtrace::trace(|frame| {
frames.push(BacktraceFrame {
frame: frame.clone(),
symbols: Vec::new(),
});
if frame.symbol_address() as usize == ip && actual_start.is_none() {
actual_start = Some(frames.len() + 1);
}
true
});
// If no frames came out assume that this is an unsupported platform
// since `backtrace` doesn't provide a way of learning this right
// now, and this should be a good enough approximation.
let inner = if frames.is_empty() {
Inner::Unsupported
} else {
Inner::Captured(LazilyResolvedCapture::new(Capture {
actual_start: actual_start.unwrap_or(0),
frames,
resolved: false,
}))
};
Backtrace { inner }
}
pub(crate) fn status(&self) -> BacktraceStatus {
match self.inner {
Inner::Unsupported => BacktraceStatus::Unsupported,
Inner::Disabled => BacktraceStatus::Disabled,
Inner::Captured(_) => BacktraceStatus::Captured,
}
}
}
impl Display for Backtrace {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
let capture = match &self.inner {
Inner::Unsupported => return fmt.write_str("unsupported backtrace"),
Inner::Disabled => return fmt.write_str("disabled backtrace"),
Inner::Captured(c) => c.force(),
};
let full = fmt.alternate();
let (frames, style) = if full {
(&capture.frames[..], PrintFmt::Full)
} else {
(&capture.frames[capture.actual_start..], PrintFmt::Short)
};
// When printing paths we try to strip the cwd if it exists,
// otherwise we just print the path as-is. Note that we also only do
// this for the short format, because if it's full we presumably
// want to print everything.
let cwd = env::current_dir();
let mut print_path = move |fmt: &mut fmt::Formatter, path: BytesOrWideString| {
output_filename(fmt, path, style, cwd.as_ref().ok())
};
let mut f = BacktraceFmt::new(fmt, style, &mut print_path);
f.add_context()?;
for frame in frames {
let mut f = f.frame();
if frame.symbols.is_empty() {
f.print_raw(frame.frame.ip(), None, None, None)?;
} else {
for symbol in frame.symbols.iter() {
f.print_raw_with_column(
frame.frame.ip(),
symbol.name.as_ref().map(|b| SymbolName::new(b)),
symbol.filename.as_ref().map(|b| match b {
BytesOrWide::Bytes(w) => BytesOrWideString::Bytes(w),
BytesOrWide::Wide(w) => BytesOrWideString::Wide(w),
}),
symbol.lineno,
symbol.colno,
)?;
}
}
}
f.finish()?;
Ok(())
}
}
struct LazilyResolvedCapture {
sync: Once,
capture: UnsafeCell<Capture>,
}
impl LazilyResolvedCapture {
fn new(capture: Capture) -> Self {
LazilyResolvedCapture {
sync: Once::new(),
capture: UnsafeCell::new(capture),
}
}
fn force(&self) -> &Capture {
self.sync.call_once(|| {
// Safety: This exclusive reference can't overlap with any
// others. `Once` guarantees callers will block until this
// closure returns. `Once` also guarantees only a single caller
// will enter this closure.
unsafe { &mut *self.capture.get() }.resolve();
});
// Safety: This shared reference can't overlap with the exclusive
// reference above.
unsafe { &*self.capture.get() }
}
}
// Safety: Access to the inner value is synchronized using a thread-safe
// `Once`. So long as `Capture` is `Sync`, `LazilyResolvedCapture` is too
unsafe impl Sync for LazilyResolvedCapture where Capture: Sync {}
impl Capture {
fn resolve(&mut self) {
// If we're already resolved, nothing to do!
if self.resolved {
return;
}
self.resolved = true;
for frame in self.frames.iter_mut() {
let symbols = &mut frame.symbols;
let frame = &frame.frame;
backtrace::resolve_frame(frame, |symbol| {
symbols.push(BacktraceSymbol {
name: symbol.name().map(|m| m.as_bytes().to_vec()),
filename: symbol.filename_raw().map(|b| match b {
BytesOrWideString::Bytes(b) => BytesOrWide::Bytes(b.to_owned()),
BytesOrWideString::Wide(b) => BytesOrWide::Wide(b.to_owned()),
}),
lineno: symbol.lineno(),
colno: symbol.colno(),
});
});
}
}
}
// Prints the filename of the backtrace frame.
fn output_filename(
fmt: &mut fmt::Formatter,
bows: BytesOrWideString,
print_fmt: PrintFmt,
cwd: Option<&PathBuf>,
) -> fmt::Result {
let file: Cow<Path> = match bows {
#[cfg(unix)]
BytesOrWideString::Bytes(bytes) => {
use std::os::unix::ffi::OsStrExt;
Path::new(std::ffi::OsStr::from_bytes(bytes)).into()
}
#[cfg(not(unix))]
BytesOrWideString::Bytes(bytes) => {
Path::new(std::str::from_utf8(bytes).unwrap_or("<unknown>")).into()
}
#[cfg(windows)]
BytesOrWideString::Wide(wide) => {
use std::os::windows::ffi::OsStringExt;
Cow::Owned(std::ffi::OsString::from_wide(wide).into())
}
#[cfg(not(windows))]
BytesOrWideString::Wide(_wide) => Path::new("<unknown>").into(),
};
if print_fmt == PrintFmt::Short && file.is_absolute() {
if let Some(cwd) = cwd {
if let Ok(stripped) = file.strip_prefix(&cwd) {
if let Some(s) = stripped.to_str() {
return write!(fmt, ".{}{}", path::MAIN_SEPARATOR, s);
}
}
}
}
Display::fmt(&file.display(), fmt)
}
}
fn _assert_send_sync() {
fn _assert<T: Send + Sync>() {}
_assert::<Backtrace>();
}

102
vendor/anyhow/src/chain.rs vendored
View file

@ -1,102 +0,0 @@
use self::ChainState::*;
use crate::StdError;
#[cfg(feature = "std")]
use std::vec;
#[cfg(feature = "std")]
pub(crate) use crate::Chain;
#[cfg(not(feature = "std"))]
pub(crate) struct Chain<'a> {
state: ChainState<'a>,
}
#[derive(Clone)]
pub(crate) enum ChainState<'a> {
Linked {
next: Option<&'a (dyn StdError + 'static)>,
},
#[cfg(feature = "std")]
Buffered {
rest: vec::IntoIter<&'a (dyn StdError + 'static)>,
},
}
impl<'a> Chain<'a> {
#[cold]
pub fn new(head: &'a (dyn StdError + 'static)) -> Self {
Chain {
state: ChainState::Linked { next: Some(head) },
}
}
}
impl<'a> Iterator for Chain<'a> {
type Item = &'a (dyn StdError + 'static);
fn next(&mut self) -> Option<Self::Item> {
match &mut self.state {
Linked { next } => {
let error = (*next)?;
*next = error.source();
Some(error)
}
#[cfg(feature = "std")]
Buffered { rest } => rest.next(),
}
}
fn size_hint(&self) -> (usize, Option<usize>) {
let len = self.len();
(len, Some(len))
}
}
#[cfg(feature = "std")]
impl DoubleEndedIterator for Chain<'_> {
fn next_back(&mut self) -> Option<Self::Item> {
match &mut self.state {
Linked { mut next } => {
let mut rest = Vec::new();
while let Some(cause) = next {
next = cause.source();
rest.push(cause);
}
let mut rest = rest.into_iter();
let last = rest.next_back();
self.state = Buffered { rest };
last
}
Buffered { rest } => rest.next_back(),
}
}
}
impl ExactSizeIterator for Chain<'_> {
fn len(&self) -> usize {
match &self.state {
Linked { mut next } => {
let mut len = 0;
while let Some(cause) = next {
next = cause.source();
len += 1;
}
len
}
#[cfg(feature = "std")]
Buffered { rest } => rest.len(),
}
}
}
#[cfg(feature = "std")]
impl Default for Chain<'_> {
fn default() -> Self {
Chain {
state: ChainState::Buffered {
rest: Vec::new().into_iter(),
},
}
}
}

193
vendor/anyhow/src/context.rs vendored
View file

@ -1,193 +0,0 @@
use crate::error::ContextError;
use crate::{Context, Error, StdError};
use core::convert::Infallible;
use core::fmt::{self, Debug, Display, Write};
#[cfg(backtrace)]
use std::any::{Demand, Provider};
mod ext {
use super::*;
pub trait StdError {
fn ext_context<C>(self, context: C) -> Error
where
C: Display + Send + Sync + 'static;
}
#[cfg(feature = "std")]
impl<E> StdError for E
where
E: std::error::Error + Send + Sync + 'static,
{
fn ext_context<C>(self, context: C) -> Error
where
C: Display + Send + Sync + 'static,
{
let backtrace = backtrace_if_absent!(&self);
Error::from_context(context, self, backtrace)
}
}
impl StdError for Error {
fn ext_context<C>(self, context: C) -> Error
where
C: Display + Send + Sync + 'static,
{
self.context(context)
}
}
}
impl<T, E> Context<T, E> for Result<T, E>
where
E: ext::StdError + Send + Sync + 'static,
{
fn context<C>(self, context: C) -> Result<T, Error>
where
C: Display + Send + Sync + 'static,
{
// Not using map_err to save 2 useless frames off the captured backtrace
// in ext_context.
match self {
Ok(ok) => Ok(ok),
Err(error) => Err(error.ext_context(context)),
}
}
fn with_context<C, F>(self, context: F) -> Result<T, Error>
where
C: Display + Send + Sync + 'static,
F: FnOnce() -> C,
{
match self {
Ok(ok) => Ok(ok),
Err(error) => Err(error.ext_context(context())),
}
}
}
/// ```
/// # type T = ();
/// #
/// use anyhow::{Context, Result};
///
/// fn maybe_get() -> Option<T> {
/// # const IGNORE: &str = stringify! {
/// ...
/// # };
/// # unimplemented!()
/// }
///
/// fn demo() -> Result<()> {
/// let t = maybe_get().context("there is no T")?;
/// # const IGNORE: &str = stringify! {
/// ...
/// # };
/// # unimplemented!()
/// }
/// ```
impl<T> Context<T, Infallible> for Option<T> {
fn context<C>(self, context: C) -> Result<T, Error>
where
C: Display + Send + Sync + 'static,
{
// Not using ok_or_else to save 2 useless frames off the captured
// backtrace.
match self {
Some(ok) => Ok(ok),
None => Err(Error::from_display(context, backtrace!())),
}
}
fn with_context<C, F>(self, context: F) -> Result<T, Error>
where
C: Display + Send + Sync + 'static,
F: FnOnce() -> C,
{
match self {
Some(ok) => Ok(ok),
None => Err(Error::from_display(context(), backtrace!())),
}
}
}
impl<C, E> Debug for ContextError<C, E>
where
C: Display,
E: Debug,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("Error")
.field("context", &Quoted(&self.context))
.field("source", &self.error)
.finish()
}
}
impl<C, E> Display for ContextError<C, E>
where
C: Display,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Display::fmt(&self.context, f)
}
}
impl<C, E> StdError for ContextError<C, E>
where
C: Display,
E: StdError + 'static,
{
fn source(&self) -> Option<&(dyn StdError + 'static)> {
Some(&self.error)
}
#[cfg(backtrace)]
fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
StdError::provide(&self.error, demand);
}
}
impl<C> StdError for ContextError<C, Error>
where
C: Display,
{
fn source(&self) -> Option<&(dyn StdError + 'static)> {
Some(unsafe { crate::ErrorImpl::error(self.error.inner.by_ref()) })
}
#[cfg(backtrace)]
fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
Provider::provide(&self.error, demand);
}
}
struct Quoted<C>(C);
impl<C> Debug for Quoted<C>
where
C: Display,
{
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_char('"')?;
Quoted(&mut *formatter).write_fmt(format_args!("{}", self.0))?;
formatter.write_char('"')?;
Ok(())
}
}
impl Write for Quoted<&mut fmt::Formatter<'_>> {
fn write_str(&mut self, s: &str) -> fmt::Result {
Display::fmt(&s.escape_debug(), self.0)
}
}
pub(crate) mod private {
use super::*;
pub trait Sealed {}
impl<T, E> Sealed for Result<T, E> where E: ext::StdError {}
impl<T> Sealed for Option<T> {}
}

834
vendor/anyhow/src/ensure.rs vendored
View file

@ -1,834 +0,0 @@
use crate::Error;
use alloc::string::String;
use core::fmt::{self, Debug, Write};
use core::mem::MaybeUninit;
use core::ptr;
use core::slice;
use core::str;
#[doc(hidden)]
pub trait BothDebug {
fn __dispatch_ensure(self, msg: &'static str) -> Error;
}
impl<A, B> BothDebug for (A, B)
where
A: Debug,
B: Debug,
{
fn __dispatch_ensure(self, msg: &'static str) -> Error {
render(msg, &self.0, &self.1)
}
}
#[doc(hidden)]
pub trait NotBothDebug {
fn __dispatch_ensure(self, msg: &'static str) -> Error;
}
impl<A, B> NotBothDebug for &(A, B) {
fn __dispatch_ensure(self, msg: &'static str) -> Error {
Error::msg(msg)
}
}
struct Buf {
bytes: [MaybeUninit<u8>; 40],
written: usize,
}
impl Buf {
fn new() -> Self {
Buf {
bytes: [MaybeUninit::uninit(); 40],
written: 0,
}
}
fn as_str(&self) -> &str {
unsafe {
str::from_utf8_unchecked(slice::from_raw_parts(
self.bytes.as_ptr().cast::<u8>(),
self.written,
))
}
}
}
impl Write for Buf {
fn write_str(&mut self, s: &str) -> fmt::Result {
if s.bytes().any(|b| b == b' ' || b == b'\n') {
return Err(fmt::Error);
}
let remaining = self.bytes.len() - self.written;
if s.len() > remaining {
return Err(fmt::Error);
}
unsafe {
ptr::copy_nonoverlapping(
s.as_ptr(),
self.bytes.as_mut_ptr().add(self.written).cast::<u8>(),
s.len(),
);
}
self.written += s.len();
Ok(())
}
}
fn render(msg: &'static str, lhs: &dyn Debug, rhs: &dyn Debug) -> Error {
let mut lhs_buf = Buf::new();
if fmt::write(&mut lhs_buf, format_args!("{:?}", lhs)).is_ok() {
let mut rhs_buf = Buf::new();
if fmt::write(&mut rhs_buf, format_args!("{:?}", rhs)).is_ok() {
let lhs_str = lhs_buf.as_str();
let rhs_str = rhs_buf.as_str();
// "{msg} ({lhs} vs {rhs})"
let len = msg.len() + 2 + lhs_str.len() + 4 + rhs_str.len() + 1;
let mut string = String::with_capacity(len);
string.push_str(msg);
string.push_str(" (");
string.push_str(lhs_str);
string.push_str(" vs ");
string.push_str(rhs_str);
string.push(')');
return Error::msg(string);
}
}
Error::msg(msg)
}
#[doc(hidden)]
#[macro_export]
macro_rules! __parse_ensure {
(atom () $bail:tt $fuel:tt {($($rhs:tt)+) ($($lhs:tt)+) $op:tt} $dup:tt $(,)?) => {
$crate::__fancy_ensure!($($lhs)+, $op, $($rhs)+)
};
// low precedence control flow constructs
(0 $stack:tt ($($bail:tt)*) $fuel:tt $parse:tt $dup:tt return $($rest:tt)*) => {
$crate::__fallback_ensure!($($bail)*)
};
(0 $stack:tt ($($bail:tt)*) $fuel:tt $parse:tt $dup:tt break $($rest:tt)*) => {
$crate::__fallback_ensure!($($bail)*)
};
(0 $stack:tt ($($bail:tt)*) $fuel:tt $parse:tt $dup:tt continue $($rest:tt)*) => {
$crate::__fallback_ensure!($($bail)*)
};
(0 $stack:tt ($($bail:tt)*) $fuel:tt $parse:tt $dup:tt yield $($rest:tt)*) => {
$crate::__fallback_ensure!($($bail)*)
};
(0 $stack:tt ($($bail:tt)*) $fuel:tt $parse:tt $dup:tt move $($rest:tt)*) => {
$crate::__fallback_ensure!($($bail)*)
};
// unary operators
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($deref:tt $($dup:tt)*) * $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $deref) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($not:tt $($dup:tt)*) ! $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $not) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($neg:tt $($dup:tt)*) - $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $neg) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($let:tt $($dup:tt)*) let $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $let) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($life:tt $colon:tt $($dup:tt)*) $label:lifetime : $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $life $colon) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $mut:tt $($dup:tt)*) &mut $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $and $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $($dup:tt)*) & $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $and) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($andand:tt $mut:tt $($dup:tt)*) &&mut $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $andand $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($andand:tt $($dup:tt)*) && $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $andand) $($parse)*} ($($rest)*) $($rest)*)
};
// control flow constructs
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($if:tt $($dup:tt)*) if $($rest:tt)*) => {
$crate::__parse_ensure!(0 (cond $stack) $bail ($($fuel)*) {($($buf)* $if) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($match:tt $($dup:tt)*) match $($rest:tt)*) => {
$crate::__parse_ensure!(0 (cond $stack) $bail ($($fuel)*) {($($buf)* $match) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($while:tt $($dup:tt)*) while $($rest:tt)*) => {
$crate::__parse_ensure!(0 (cond $stack) $bail ($($fuel)*) {($($buf)* $while) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($for:tt $($dup:tt)*) for $($rest:tt)*) => {
$crate::__parse_ensure!(pat (cond $stack) $bail ($($fuel)*) {($($buf)* $for) $($parse)*} ($($rest)*) $($rest)*)
};
(atom (cond $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($brace:tt $($dup:tt)*) {$($block:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(cond $stack $bail ($($fuel)*) {($($buf)* $brace) $($parse)*} ($($rest)*) $($rest)*)
};
(cond $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($else:tt $if:tt $($dup:tt)*) else if $($rest:tt)*) => {
$crate::__parse_ensure!(0 (cond $stack) $bail ($($fuel)*) {($($buf)* $else $if) $($parse)*} ($($rest)*) $($rest)*)
};
(cond $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($else:tt $brace:tt $($dup:tt)*) else {$($block:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $else $brace) $($parse)*} ($($rest)*) $($rest)*)
};
(cond $stack:tt $bail:tt (~$($fuel:tt)*) $parse:tt $dup:tt $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) $parse $dup $($rest)*)
};
// atomic expressions
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($paren:tt $($dup:tt)*) ($($content:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $paren) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bracket:tt $($dup:tt)*) [$($array:tt)*] $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $bracket) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($brace:tt $($dup:tt)*) {$($block:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $brace) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($loop:tt $block:tt $($dup:tt)*) loop {$($body:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $loop $block) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($async:tt $block:tt $($dup:tt)*) async {$($body:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $async $block) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($async:tt $move:tt $block:tt $($dup:tt)*) async move {$($body:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $async $move $block) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($unsafe:tt $block:tt $($dup:tt)*) unsafe {$($body:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $unsafe $block) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt $lit:literal $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $lit) $($parse)*} ($($rest)*) $($rest)*)
};
// path expressions
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(epath (atom $stack) $bail ($($fuel)*) {($($buf)* $colons $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(epath (atom $stack) $bail ($($fuel)*) {($($buf)* $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($langle:tt $($dup:tt)*) < $($rest:tt)*) => {
$crate::__parse_ensure!(type (qpath (epath (atom $stack))) $bail ($($fuel)*) {($($buf)* $langle) $($parse)*} ($($rest)*) $($rest)*)
};
(epath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $langle:tt $($dup:tt)*) :: < $($rest:tt)*) => {
$crate::__parse_ensure!(generic (epath $stack) $bail ($($fuel)*) {($($buf)* $colons $langle) $($parse)*} ($($rest)*) $($rest)*)
};
(epath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: << $($rest:tt)*) => {
$crate::__parse_ensure!(generic (epath $stack) $bail ($($fuel)*) {($($buf)* $colons <) $($parse)*} (< $($rest)*) < $($rest)*)
};
(epath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: <- $($rest:tt)*) => {
$crate::__parse_ensure!(generic (epath $stack) $bail ($($fuel)*) {($($buf)* $colons <) $($parse)*} (- $($rest)*) - $($rest)*)
};
(epath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(epath $stack $bail ($($fuel)*) {($($buf)* $colons $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(epath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bang:tt $args:tt $($dup:tt)*) ! ($($mac:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $bang $args) $($parse)*} ($($rest)*) $($rest)*)
};
(epath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bang:tt $args:tt $($dup:tt)*) ! [$($mac:tt)*] $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $bang $args) $($parse)*} ($($rest)*) $($rest)*)
};
(epath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bang:tt $args:tt $($dup:tt)*) ! {$($mac:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $bang $args) $($parse)*} ($($rest)*) $($rest)*)
};
(epath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) $parse:tt $dup:tt $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) $parse $dup $($rest)*)
};
// trailer expressions
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($paren:tt $($dup:tt)*) ($($call:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $paren) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bracket:tt $($dup:tt)*) [$($index:tt)*] $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $bracket) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($brace:tt $($dup:tt)*) {$($init:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $brace) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($question:tt $($dup:tt)*) ? $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $question) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($dot:tt $ident:tt $colons:tt $langle:tt $($dup:tt)*) . $i:ident :: < $($rest:tt)*) => {
$crate::__parse_ensure!(generic (atom $stack) $bail ($($fuel)*) {($($buf)* $dot $ident $colons $langle) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($dot:tt $ident:tt $colons:tt $($dup:tt)*) . $i:ident :: << $($rest:tt)*) => {
$crate::__parse_ensure!(generic (atom $stack) $bail ($($fuel)*) {($($buf)* $dot $ident $colons <) $($parse)*} (< $($rest)*) < $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($dot:tt $ident:tt $colons:tt $($dup:tt)*) . $i:ident :: <- $($rest:tt)*) => {
$crate::__parse_ensure!(generic (atom $stack) $bail ($($fuel)*) {($($buf)* $dot $ident $colons <) $($parse)*} (- $($rest)*) - $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($dot:tt $($dup:tt)*) . $field:ident $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $dot $field) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($dot:tt $index:tt $($dup:tt)*) . $lit:literal $($rest:tt)*) => {
$crate::__parse_ensure!(atom $stack $bail ($($fuel)*) {($($buf)* $dot $index) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($as:tt $($dup:tt)*) as $($rest:tt)*) => {
$crate::__parse_ensure!(type (atom $stack) $bail ($($fuel)*) {($($buf)* $as) $($parse)*} ($($rest)*) $($rest)*)
};
// types
(type ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bracket:tt $($dup:tt)*) [$($content:tt)*] $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $bracket) $($parse)*} ($($rest)*) $($rest)*)
};
(type ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($paren:tt $($dup:tt)*) ($($content:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $paren) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($star:tt $const:tt $($dup:tt)*) *const $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $star $const) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($star:tt $mut:tt $($dup:tt)*) *mut $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $star $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $life:lifetime $mut:tt $($dup:tt)*) & $l:lifetime mut $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and $life $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $mut:tt $($dup:tt)*) & mut $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $life:lifetime $($dup:tt)*) & $l:lifetime $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and $life) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $($dup:tt)*) & $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $life:lifetime $mut:tt $($dup:tt)*) && $l:lifetime mut $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and $life $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $mut:tt $($dup:tt)*) && mut $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $life:lifetime $($dup:tt)*) && $l:lifetime $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and $life) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $($dup:tt)*) && $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $and) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($unsafe:tt $(extern $($abi:literal)?)? fn $($dup:tt)*) unsafe $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $unsafe) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($extern:tt $abi:literal fn $($dup:tt)*) extern $lit:literal $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $extern $abi) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($extern:tt fn $($dup:tt)*) extern $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $extern) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($fn:tt $paren:tt $arrow:tt $($dup:tt)*) fn ($($args:tt)*) -> $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $fn $paren $arrow) $($parse)*} ($($rest)*) $($rest)*)
};
(type ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($fn:tt $paren:tt $($dup:tt)*) fn ($($args:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $fn $paren) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($impl:tt $($dup:tt)*) impl $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $impl) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($dyn:tt $($dup:tt)*) dyn $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $dyn) $($parse)*} ($($rest)*) $($rest)*)
};
(type ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($wild:tt $($dup:tt)*) _ $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $wild) $($parse)*} ($($rest)*) $($rest)*)
};
(type ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($never:tt $($dup:tt)*) ! $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $never) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($for:tt $langle:tt $($dup:tt)*) for < $($rest:tt)*) => {
$crate::__parse_ensure!(generic (type $stack) $bail ($($fuel)*) {($($buf)* $for $langle) $($parse)*} ($($rest)*) $($rest)*)
};
// path types
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(tpath $stack $bail ($($fuel)*) {($($buf)* $colons $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(tpath $stack $bail ($($fuel)*) {($($buf)* $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(type $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($langle:tt $($dup:tt)*) < $($rest:tt)*) => {
$crate::__parse_ensure!(type (qpath (tpath $stack)) $bail ($($fuel)*) {($($buf)* $langle) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($langle:tt $($dup:tt)*) < $($rest:tt)*) => {
$crate::__parse_ensure!(generic (tpath $stack) $bail ($($fuel)*) {($($buf)* $langle) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt << $($rest:tt)*) => {
$crate::__parse_ensure!(generic (tpath $stack) $bail ($($fuel)*) {($($buf)* <) $($parse)*} (< $($rest)*) < $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt <- $($rest:tt)*) => {
$crate::__parse_ensure!(generic (tpath $stack) $bail ($($fuel)*) {($($buf)* <) $($parse)*} (- $($rest)*) - $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $langle:tt $($dup:tt)*) :: < $($rest:tt)*) => {
$crate::__parse_ensure!(generic (tpath $stack) $bail ($($fuel)*) {($($buf)* $colons $langle) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: << $($rest:tt)*) => {
$crate::__parse_ensure!(generic (tpath $stack) $bail ($($fuel)*) {($($buf)* $colons <) $($parse)*} (< $($rest)*) < $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: <- $($rest:tt)*) => {
$crate::__parse_ensure!(generic (tpath $stack) $bail ($($fuel)*) {($($buf)* $colons <) $($parse)*} (- $($rest)*) - $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(tpath $stack $bail ($($fuel)*) {($($buf)* $colons $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($paren:tt $arrow:tt $($dup:tt)*) ($($args:tt)*) -> $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $paren $arrow) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($paren:tt $($dup:tt)*) ($($args:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!(object $stack $bail ($($fuel)*) {($($buf)* $paren) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $paren:tt $arrow:tt $($dup:tt)*) :: ($($args:tt)*) -> $($rest:tt)*) => {
$crate::__parse_ensure!(type $stack $bail ($($fuel)*) {($($buf)* $colons $paren $arrow) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $paren:tt $($dup:tt)*) :: ($($args:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!(object $stack $bail ($($fuel)*) {($($buf)* $colons $paren) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bang:tt $args:tt $($dup:tt)*) ! ($($mac:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $bang $args) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bang:tt $args:tt $($dup:tt)*) ! [$($mac:tt)*] $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $bang $args) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bang:tt $args:tt $($dup:tt)*) ! {$($mac:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $bang $args) $($parse)*} ($($rest)*) $($rest)*)
};
(tpath $stack:tt $bail:tt (~$($fuel:tt)*) $parse:tt $dup:tt $($rest:tt)*) => {
$crate::__parse_ensure!(object $stack $bail ($($fuel)*) $parse $dup $($rest)*)
};
// qualified paths
(qpath ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($rangle:tt $colons:tt $($dup:tt)*) > :: $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $rangle $colons $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(qpath $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($as:tt $($dup:tt)*) as $($rest:tt)*) => {
$crate::__parse_ensure!(type (qpath $stack) $bail ($($fuel)*) {($($buf)* $as) $($parse)*} ($($rest)*) $($rest)*)
};
// trait objects
(object (arglist $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($plus:tt $colons:tt $($dup:tt)*) + :: $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(tpath (arglist $stack) $bail ($($fuel)*) {($($buf)* $plus $colons $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(object (arglist $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($plus:tt $($dup:tt)*) + $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(tpath (arglist $stack) $bail ($($fuel)*) {($($buf)* $plus $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(object ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) $parse:tt $dup:tt $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) $parse $dup $($rest)*)
};
// angle bracketed generic arguments
(generic ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($rangle:tt $($dup:tt)*) > $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $rangle) $($parse)*} ($($rest)*) $($rest)*)
};
(generic ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt >> $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* >) $($parse)*} (> $($rest)*) > $($rest)*)
};
(generic $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt $lit:literal $($rest:tt)*) => {
$crate::__parse_ensure!(arglist $stack $bail ($($fuel)*) {($($buf)* $lit) $($parse)*} ($($rest)*) $($rest)*)
};
(generic $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($brace:tt $($dup:tt)*) {$($block:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(arglist $stack $bail ($($fuel)*) {($($buf)* $brace) $($parse)*} ($($rest)*) $($rest)*)
};
(generic $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt $life:lifetime $($rest:tt)*) => {
$crate::__parse_ensure!(arglist $stack $bail ($($fuel)*) {($($buf)* $life) $($parse)*} ($($rest)*) $($rest)*)
};
(generic $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($assoc:ident $eq:tt $($dup:tt)*) $ident:ident = $($rest:tt)*) => {
$crate::__parse_ensure!(type (arglist $stack) $bail ($($fuel)*) {($($buf)* $assoc $eq) $($parse)*} ($($rest)*) $($rest)*)
};
(generic $stack:tt $bail:tt (~$($fuel:tt)*) $parse:tt $dup:tt $($rest:tt)*) => {
$crate::__parse_ensure!(type (arglist $stack) $bail ($($fuel)*) $parse $dup $($rest)*)
};
(arglist $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($comma:tt $($dup:tt)*) , $($rest:tt)*) => {
$crate::__parse_ensure!(generic $stack $bail ($($fuel)*) {($($buf)* $comma) $($parse)*} ($($rest)*) $($rest)*)
};
(arglist ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($rangle:tt $($dup:tt)*) > $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* $rangle) $($parse)*} ($($rest)*) $($rest)*)
};
(arglist ($pop:ident $stack:tt) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt >> $($rest:tt)*) => {
$crate::__parse_ensure!($pop $stack $bail ($($fuel)*) {($($buf)* >) $($parse)*} (> $($rest)*) > $($rest)*)
};
// patterns
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($pipe:tt $($dup:tt)*) | $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $pipe) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($eq:tt $($dup:tt)*) = $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $eq) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($in:tt $($dup:tt)*) in $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $in) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($ref:tt $($dup:tt)*) ref $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $ref) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($mut:tt $($dup:tt)*) mut $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $mut) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($at:tt $($dup:tt)*) @ $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $at) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt $lit:literal $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $lit) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($range:tt $($dup:tt)*) .. $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $range) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($range:tt $($dup:tt)*) ..= $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $range) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $($dup:tt)*) & $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $and) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($andand:tt $($dup:tt)*) && $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $andand) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($paren:tt $($dup:tt)*) ($($content:tt)*) $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $paren) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bracket:tt $($dup:tt)*) [$($content:tt)*] $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $bracket) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($brace:tt $($dup:tt)*) {$($content:tt)*} $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $brace) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($wild:tt $($dup:tt)*) _ $($rest:tt)*) => {
$crate::__parse_ensure!(pat $stack $bail ($($fuel)*) {($($buf)* $wild) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($colons:tt $($dup:tt)*) :: $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(epath (pat $stack) $bail ($($fuel)*) {($($buf)* $colons $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} $dup:tt $ident:ident $($rest:tt)*) => {
$crate::__parse_ensure!(epath (pat $stack) $bail ($($fuel)*) {($($buf)* $ident) $($parse)*} ($($rest)*) $($rest)*)
};
(pat $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($langle:tt $($dup:tt)*) < $($rest:tt)*) => {
$crate::__parse_ensure!(type (qpath (epath (pat $stack))) $bail ($($fuel)*) {($($buf)* $langle) $($parse)*} ($($rest)*) $($rest)*)
};
// high precedence binary operators
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($add:tt $($dup:tt)*) + $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $add) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($sub:tt $($dup:tt)*) - $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $sub) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($mul:tt $($dup:tt)*) * $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $mul) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($div:tt $($dup:tt)*) / $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $div) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($rem:tt $($dup:tt)*) % $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $rem) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bitxor:tt $($dup:tt)*) ^ $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $bitxor) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bitand:tt $($dup:tt)*) & $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $bitand) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bitor:tt $($dup:tt)*) | $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $bitor) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($shl:tt $($dup:tt)*) << $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $shl) $($parse)*} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($shr:tt $($dup:tt)*) >> $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $shr) $($parse)*} ($($rest)*) $($rest)*)
};
// comparison binary operators
(atom () $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($eq:tt $($dup:tt)*) == $($rest:tt)*) => {
$crate::__parse_ensure!(0 () $bail ($($fuel)*) {() $($parse)* ($($buf)*) $eq} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)+) $($parse:tt)*} ($eq:tt $($dup:tt)*) == $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $eq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom () $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($le:tt $($dup:tt)*) <= $($rest:tt)*) => {
$crate::__parse_ensure!(0 () $bail ($($fuel)*) {() $($parse)* ($($buf)*) $le} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)+) $($parse:tt)*} ($le:tt $($dup:tt)*) <= $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $le) $($parse)*} ($($rest)*) $($rest)*)
};
(atom () $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($lt:tt $($dup:tt)*) < $($rest:tt)*) => {
$crate::__parse_ensure!(0 () $bail ($($fuel)*) {() $($parse)* ($($buf)*) $lt} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)+) $($parse:tt)*} ($lt:tt $($dup:tt)*) < $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $lt) $($parse)*} ($($rest)*) $($rest)*)
};
(atom () $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($ne:tt $($dup:tt)*) != $($rest:tt)*) => {
$crate::__parse_ensure!(0 () $bail ($($fuel)*) {() $($parse)* ($($buf)*) $ne} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)+) $($parse:tt)*} ($ne:tt $($dup:tt)*) != $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $ne) $($parse)*} ($($rest)*) $($rest)*)
};
(atom () $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($ge:tt $($dup:tt)*) >= $($rest:tt)*) => {
$crate::__parse_ensure!(0 () $bail ($($fuel)*) {() $($parse)* ($($buf)*) $ge} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)+) $($parse:tt)*} ($ge:tt $($dup:tt)*) >= $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $ge) $($parse)*} ($($rest)*) $($rest)*)
};
(atom () $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($gt:tt $($dup:tt)*) > $($rest:tt)*) => {
$crate::__parse_ensure!(0 () $bail ($($fuel)*) {() $($parse)* ($($buf)*) $gt} ($($rest)*) $($rest)*)
};
(atom $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)+) $($parse:tt)*} ($gt:tt $($dup:tt)*) > $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $gt) $($parse)*} ($($rest)*) $($rest)*)
};
// low precedence binary operators
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $($dup:tt)*) && $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $and) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($or:tt $($dup:tt)*) || $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $or) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($assign:tt $($dup:tt)*) = $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $assign) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($addeq:tt $($dup:tt)*) += $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $addeq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($subeq:tt $($dup:tt)*) -= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $subeq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($muleq:tt $($dup:tt)*) *= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $muleq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($diveq:tt $($dup:tt)*) /= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $diveq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($remeq:tt $($dup:tt)*) %= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $remeq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bitxoreq:tt $($dup:tt)*) ^= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $bitxoreq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bitandeq:tt $($dup:tt)*) &= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $bitandeq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($bitoreq:tt $($dup:tt)*) |= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $bitoreq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($shleq:tt $($dup:tt)*) <<= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $shleq) $($parse)*} ($($rest)*) $($rest)*)
};
(atom ($($stack:tt)+) $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($shreq:tt $($dup:tt)*) >>= $($rest:tt)*) => {
$crate::__parse_ensure!(0 ($($stack)*) $bail ($($fuel)*) {($($buf)* $shreq) $($parse)*} ($($rest)*) $($rest)*)
};
// unrecognized expression
($state:tt $stack:tt ($($bail:tt)*) $($rest:tt)*) => {
$crate::__fallback_ensure!($($bail)*)
};
}
#[doc(hidden)]
#[macro_export]
macro_rules! __fancy_ensure {
($lhs:expr, $op:tt, $rhs:expr) => {
match (&$lhs, &$rhs) {
(lhs, rhs) => {
if !(lhs $op rhs) {
#[allow(unused_imports)]
use $crate::__private::{BothDebug, NotBothDebug};
return Err((lhs, rhs).__dispatch_ensure(
$crate::__private::concat!(
"Condition failed: `",
$crate::__private::stringify!($lhs),
" ",
$crate::__private::stringify!($op),
" ",
$crate::__private::stringify!($rhs),
"`",
),
));
}
}
}
};
}
#[doc(hidden)]
#[macro_export]
macro_rules! __fallback_ensure {
($cond:expr $(,)?) => {
if !$cond {
return $crate::__private::Err($crate::Error::msg(
$crate::__private::concat!("Condition failed: `", $crate::__private::stringify!($cond), "`")
));
}
};
($cond:expr, $msg:literal $(,)?) => {
if !$cond {
return $crate::__private::Err($crate::__anyhow!($msg));
}
};
($cond:expr, $err:expr $(,)?) => {
if !$cond {
return $crate::__private::Err($crate::__anyhow!($err));
}
};
($cond:expr, $fmt:expr, $($arg:tt)*) => {
if !$cond {
return $crate::__private::Err($crate::__anyhow!($fmt, $($arg)*));
}
};
}

992
vendor/anyhow/src/error.rs vendored
View file

@ -1,992 +0,0 @@
use crate::backtrace::Backtrace;
use crate::chain::Chain;
#[cfg(any(feature = "std", anyhow_no_ptr_addr_of))]
use crate::ptr::Mut;
use crate::ptr::{Own, Ref};
use crate::{Error, StdError};
use alloc::boxed::Box;
#[cfg(backtrace)]
use core::any::Demand;
use core::any::TypeId;
use core::fmt::{self, Debug, Display};
use core::mem::ManuallyDrop;
#[cfg(not(anyhow_no_ptr_addr_of))]
use core::ptr;
use core::ptr::NonNull;
#[cfg(feature = "std")]
use core::ops::{Deref, DerefMut};
impl Error {
/// Create a new error object from any error type.
///
/// The error type must be threadsafe and `'static`, so that the `Error`
/// will be as well.
///
/// If the error type does not provide a backtrace, a backtrace will be
/// created here to ensure that a backtrace exists.
#[cfg(feature = "std")]
#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
#[cold]
#[must_use]
pub fn new<E>(error: E) -> Self
where
E: StdError + Send + Sync + 'static,
{
let backtrace = backtrace_if_absent!(&error);
Error::from_std(error, backtrace)
}
/// Create a new error object from a printable error message.
///
/// If the argument implements std::error::Error, prefer `Error::new`
/// instead which preserves the underlying error's cause chain and
/// backtrace. If the argument may or may not implement std::error::Error
/// now or in the future, use `anyhow!(err)` which handles either way
/// correctly.
///
/// `Error::msg("...")` is equivalent to `anyhow!("...")` but occasionally
/// convenient in places where a function is preferable over a macro, such
/// as iterator or stream combinators:
///
/// ```
/// # mod ffi {
/// # pub struct Input;
/// # pub struct Output;
/// # pub async fn do_some_work(_: Input) -> Result<Output, &'static str> {
/// # unimplemented!()
/// # }
/// # }
/// #
/// # use ffi::{Input, Output};
/// #
/// use anyhow::{Error, Result};
/// use futures::stream::{Stream, StreamExt, TryStreamExt};
///
/// async fn demo<S>(stream: S) -> Result<Vec<Output>>
/// where
/// S: Stream<Item = Input>,
/// {
/// stream
/// .then(ffi::do_some_work) // returns Result<Output, &str>
/// .map_err(Error::msg)
/// .try_collect()
/// .await
/// }
/// ```
#[cold]
#[must_use]
pub fn msg<M>(message: M) -> Self
where
M: Display + Debug + Send + Sync + 'static,
{
Error::from_adhoc(message, backtrace!())
}
#[cfg(feature = "std")]
#[cold]
pub(crate) fn from_std<E>(error: E, backtrace: Option<Backtrace>) -> Self
where
E: StdError + Send + Sync + 'static,
{
let vtable = &ErrorVTable {
object_drop: object_drop::<E>,
object_ref: object_ref::<E>,
#[cfg(anyhow_no_ptr_addr_of)]
object_mut: object_mut::<E>,
object_boxed: object_boxed::<E>,
object_downcast: object_downcast::<E>,
#[cfg(anyhow_no_ptr_addr_of)]
object_downcast_mut: object_downcast_mut::<E>,
object_drop_rest: object_drop_front::<E>,
#[cfg(all(not(backtrace), feature = "backtrace"))]
object_backtrace: no_backtrace,
};
// Safety: passing vtable that operates on the right type E.
unsafe { Error::construct(error, vtable, backtrace) }
}
#[cold]
pub(crate) fn from_adhoc<M>(message: M, backtrace: Option<Backtrace>) -> Self
where
M: Display + Debug + Send + Sync + 'static,
{
use crate::wrapper::MessageError;
let error: MessageError<M> = MessageError(message);
let vtable = &ErrorVTable {
object_drop: object_drop::<MessageError<M>>,
object_ref: object_ref::<MessageError<M>>,
#[cfg(all(feature = "std", anyhow_no_ptr_addr_of))]
object_mut: object_mut::<MessageError<M>>,
object_boxed: object_boxed::<MessageError<M>>,
object_downcast: object_downcast::<M>,
#[cfg(anyhow_no_ptr_addr_of)]
object_downcast_mut: object_downcast_mut::<M>,
object_drop_rest: object_drop_front::<M>,
#[cfg(all(not(backtrace), feature = "backtrace"))]
object_backtrace: no_backtrace,
};
// Safety: MessageError is repr(transparent) so it is okay for the
// vtable to allow casting the MessageError<M> to M.
unsafe { Error::construct(error, vtable, backtrace) }
}
#[cold]
pub(crate) fn from_display<M>(message: M, backtrace: Option<Backtrace>) -> Self
where
M: Display + Send + Sync + 'static,
{
use crate::wrapper::DisplayError;
let error: DisplayError<M> = DisplayError(message);
let vtable = &ErrorVTable {
object_drop: object_drop::<DisplayError<M>>,
object_ref: object_ref::<DisplayError<M>>,
#[cfg(all(feature = "std", anyhow_no_ptr_addr_of))]
object_mut: object_mut::<DisplayError<M>>,
object_boxed: object_boxed::<DisplayError<M>>,
object_downcast: object_downcast::<M>,
#[cfg(anyhow_no_ptr_addr_of)]
object_downcast_mut: object_downcast_mut::<M>,
object_drop_rest: object_drop_front::<M>,
#[cfg(all(not(backtrace), feature = "backtrace"))]
object_backtrace: no_backtrace,
};
// Safety: DisplayError is repr(transparent) so it is okay for the
// vtable to allow casting the DisplayError<M> to M.
unsafe { Error::construct(error, vtable, backtrace) }
}
#[cfg(feature = "std")]
#[cold]
pub(crate) fn from_context<C, E>(context: C, error: E, backtrace: Option<Backtrace>) -> Self
where
C: Display + Send + Sync + 'static,
E: StdError + Send + Sync + 'static,
{
let error: ContextError<C, E> = ContextError { context, error };
let vtable = &ErrorVTable {
object_drop: object_drop::<ContextError<C, E>>,
object_ref: object_ref::<ContextError<C, E>>,
#[cfg(anyhow_no_ptr_addr_of)]
object_mut: object_mut::<ContextError<C, E>>,
object_boxed: object_boxed::<ContextError<C, E>>,
object_downcast: context_downcast::<C, E>,
#[cfg(anyhow_no_ptr_addr_of)]
object_downcast_mut: context_downcast_mut::<C, E>,
object_drop_rest: context_drop_rest::<C, E>,
#[cfg(all(not(backtrace), feature = "backtrace"))]
object_backtrace: no_backtrace,
};
// Safety: passing vtable that operates on the right type.
unsafe { Error::construct(error, vtable, backtrace) }
}
#[cfg(feature = "std")]
#[cold]
pub(crate) fn from_boxed(
error: Box<dyn StdError + Send + Sync>,
backtrace: Option<Backtrace>,
) -> Self {
use crate::wrapper::BoxedError;
let error = BoxedError(error);
let vtable = &ErrorVTable {
object_drop: object_drop::<BoxedError>,
object_ref: object_ref::<BoxedError>,
#[cfg(anyhow_no_ptr_addr_of)]
object_mut: object_mut::<BoxedError>,
object_boxed: object_boxed::<BoxedError>,
object_downcast: object_downcast::<Box<dyn StdError + Send + Sync>>,
#[cfg(anyhow_no_ptr_addr_of)]
object_downcast_mut: object_downcast_mut::<Box<dyn StdError + Send + Sync>>,
object_drop_rest: object_drop_front::<Box<dyn StdError + Send + Sync>>,
#[cfg(all(not(backtrace), feature = "backtrace"))]
object_backtrace: no_backtrace,
};
// Safety: BoxedError is repr(transparent) so it is okay for the vtable
// to allow casting to Box<dyn StdError + Send + Sync>.
unsafe { Error::construct(error, vtable, backtrace) }
}
// Takes backtrace as argument rather than capturing it here so that the
// user sees one fewer layer of wrapping noise in the backtrace.
//
// Unsafe because the given vtable must have sensible behavior on the error
// value of type E.
#[cold]
unsafe fn construct<E>(
error: E,
vtable: &'static ErrorVTable,
backtrace: Option<Backtrace>,
) -> Self
where
E: StdError + Send + Sync + 'static,
{
let inner: Box<ErrorImpl<E>> = Box::new(ErrorImpl {
vtable,
backtrace,
_object: error,
});
// Erase the concrete type of E from the compile-time type system. This
// is equivalent to the safe unsize coercion from Box<ErrorImpl<E>> to
// Box<ErrorImpl<dyn StdError + Send + Sync + 'static>> except that the
// result is a thin pointer. The necessary behavior for manipulating the
// underlying ErrorImpl<E> is preserved in the vtable provided by the
// caller rather than a builtin fat pointer vtable.
let inner = Own::new(inner).cast::<ErrorImpl>();
Error { inner }
}
/// Wrap the error value with additional context.
///
/// For attaching context to a `Result` as it is propagated, the
/// [`Context`][crate::Context] extension trait may be more convenient than
/// this function.
///
/// The primary reason to use `error.context(...)` instead of
/// `result.context(...)` via the `Context` trait would be if the context
/// needs to depend on some data held by the underlying error:
///
/// ```
/// # use std::fmt::{self, Debug, Display};
/// #
/// # type T = ();
/// #
/// # impl std::error::Error for ParseError {}
/// # impl Debug for ParseError {
/// # fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
/// # unimplemented!()
/// # }
/// # }
/// # impl Display for ParseError {
/// # fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
/// # unimplemented!()
/// # }
/// # }
/// #
/// use anyhow::Result;
/// use std::fs::File;
/// use std::path::Path;
///
/// struct ParseError {
/// line: usize,
/// column: usize,
/// }
///
/// fn parse_impl(file: File) -> Result<T, ParseError> {
/// # const IGNORE: &str = stringify! {
/// ...
/// # };
/// # unimplemented!()
/// }
///
/// pub fn parse(path: impl AsRef<Path>) -> Result<T> {
/// let file = File::open(&path)?;
/// parse_impl(file).map_err(|error| {
/// let context = format!(
/// "only the first {} lines of {} are valid",
/// error.line, path.as_ref().display(),
/// );
/// anyhow::Error::new(error).context(context)
/// })
/// }
/// ```
#[cold]
#[must_use]
pub fn context<C>(self, context: C) -> Self
where
C: Display + Send + Sync + 'static,
{
let error: ContextError<C, Error> = ContextError {
context,
error: self,
};
let vtable = &ErrorVTable {
object_drop: object_drop::<ContextError<C, Error>>,
object_ref: object_ref::<ContextError<C, Error>>,
#[cfg(all(feature = "std", anyhow_no_ptr_addr_of))]
object_mut: object_mut::<ContextError<C, Error>>,
object_boxed: object_boxed::<ContextError<C, Error>>,
object_downcast: context_chain_downcast::<C>,
#[cfg(anyhow_no_ptr_addr_of)]
object_downcast_mut: context_chain_downcast_mut::<C>,
object_drop_rest: context_chain_drop_rest::<C>,
#[cfg(all(not(backtrace), feature = "backtrace"))]
object_backtrace: context_backtrace::<C>,
};
// As the cause is anyhow::Error, we already have a backtrace for it.
let backtrace = None;
// Safety: passing vtable that operates on the right type.
unsafe { Error::construct(error, vtable, backtrace) }
}
/// Get the backtrace for this Error.
///
/// In order for the backtrace to be meaningful, one of the two environment
/// variables `RUST_LIB_BACKTRACE=1` or `RUST_BACKTRACE=1` must be defined
/// and `RUST_LIB_BACKTRACE` must not be `0`. Backtraces are somewhat
/// expensive to capture in Rust, so we don't necessarily want to be
/// capturing them all over the place all the time.
///
/// - If you want panics and errors to both have backtraces, set
/// `RUST_BACKTRACE=1`;
/// - If you want only errors to have backtraces, set
/// `RUST_LIB_BACKTRACE=1`;
/// - If you want only panics to have backtraces, set `RUST_BACKTRACE=1` and
/// `RUST_LIB_BACKTRACE=0`.
///
/// # Stability
///
/// Standard library backtraces are only available on the nightly channel.
/// Tracking issue: [rust-lang/rust#53487][tracking].
///
/// On stable compilers, this function is only available if the crate's
/// "backtrace" feature is enabled, and will use the `backtrace` crate as
/// the underlying backtrace implementation.
///
/// ```toml
/// [dependencies]
/// anyhow = { version = "1.0", features = ["backtrace"] }
/// ```
///
/// [tracking]: https://github.com/rust-lang/rust/issues/53487
#[cfg(any(backtrace, feature = "backtrace"))]
#[cfg_attr(doc_cfg, doc(cfg(any(nightly, feature = "backtrace"))))]
pub fn backtrace(&self) -> &impl_backtrace!() {
unsafe { ErrorImpl::backtrace(self.inner.by_ref()) }
}
/// An iterator of the chain of source errors contained by this Error.
///
/// This iterator will visit every error in the cause chain of this error
/// object, beginning with the error that this error object was created
/// from.
///
/// # Example
///
/// ```
/// use anyhow::Error;
/// use std::io;
///
/// pub fn underlying_io_error_kind(error: &Error) -> Option<io::ErrorKind> {
/// for cause in error.chain() {
/// if let Some(io_error) = cause.downcast_ref::<io::Error>() {
/// return Some(io_error.kind());
/// }
/// }
/// None
/// }
/// ```
#[cfg(feature = "std")]
#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
#[cold]
pub fn chain(&self) -> Chain {
unsafe { ErrorImpl::chain(self.inner.by_ref()) }
}
/// The lowest level cause of this error &mdash; this error's cause's
/// cause's cause etc.
///
/// The root cause is the last error in the iterator produced by
/// [`chain()`][Error::chain].
#[cfg(feature = "std")]
#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
pub fn root_cause(&self) -> &(dyn StdError + 'static) {
self.chain().last().unwrap()
}
/// Returns true if `E` is the type held by this error object.
///
/// For errors with context, this method returns true if `E` matches the
/// type of the context `C` **or** the type of the error on which the
/// context has been attached. For details about the interaction between
/// context and downcasting, [see here].
///
/// [see here]: trait.Context.html#effect-on-downcasting
pub fn is<E>(&self) -> bool
where
E: Display + Debug + Send + Sync + 'static,
{
self.downcast_ref::<E>().is_some()
}
/// Attempt to downcast the error object to a concrete type.
pub fn downcast<E>(mut self) -> Result<E, Self>
where
E: Display + Debug + Send + Sync + 'static,
{
let target = TypeId::of::<E>();
let inner = self.inner.by_mut();
unsafe {
// Use vtable to find NonNull<()> which points to a value of type E
// somewhere inside the data structure.
#[cfg(not(anyhow_no_ptr_addr_of))]
let addr = match (vtable(inner.ptr).object_downcast)(inner.by_ref(), target) {
Some(addr) => addr.by_mut().extend(),
None => return Err(self),
};
#[cfg(anyhow_no_ptr_addr_of)]
let addr = match (vtable(inner.ptr).object_downcast_mut)(inner, target) {
Some(addr) => addr.extend(),
None => return Err(self),
};
// Prepare to read E out of the data structure. We'll drop the rest
// of the data structure separately so that E is not dropped.
let outer = ManuallyDrop::new(self);
// Read E from where the vtable found it.
let error = addr.cast::<E>().read();
// Drop rest of the data structure outside of E.
(vtable(outer.inner.ptr).object_drop_rest)(outer.inner, target);
Ok(error)
}
}
/// Downcast this error object by reference.
///
/// # Example
///
/// ```
/// # use anyhow::anyhow;
/// # use std::fmt::{self, Display};
/// # use std::task::Poll;
/// #
/// # #[derive(Debug)]
/// # enum DataStoreError {
/// # Censored(()),
/// # }
/// #
/// # impl Display for DataStoreError {
/// # fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
/// # unimplemented!()
/// # }
/// # }
/// #
/// # impl std::error::Error for DataStoreError {}
/// #
/// # const REDACTED_CONTENT: () = ();
/// #
/// # let error = anyhow!("...");
/// # let root_cause = &error;
/// #
/// # let ret =
/// // If the error was caused by redaction, then return a tombstone instead
/// // of the content.
/// match root_cause.downcast_ref::<DataStoreError>() {
/// Some(DataStoreError::Censored(_)) => Ok(Poll::Ready(REDACTED_CONTENT)),
/// None => Err(error),
/// }
/// # ;
/// ```
pub fn downcast_ref<E>(&self) -> Option<&E>
where
E: Display + Debug + Send + Sync + 'static,
{
let target = TypeId::of::<E>();
unsafe {
// Use vtable to find NonNull<()> which points to a value of type E
// somewhere inside the data structure.
let addr = (vtable(self.inner.ptr).object_downcast)(self.inner.by_ref(), target)?;
Some(addr.cast::<E>().deref())
}
}
/// Downcast this error object by mutable reference.
pub fn downcast_mut<E>(&mut self) -> Option<&mut E>
where
E: Display + Debug + Send + Sync + 'static,
{
let target = TypeId::of::<E>();
unsafe {
// Use vtable to find NonNull<()> which points to a value of type E
// somewhere inside the data structure.
#[cfg(not(anyhow_no_ptr_addr_of))]
let addr =
(vtable(self.inner.ptr).object_downcast)(self.inner.by_ref(), target)?.by_mut();
#[cfg(anyhow_no_ptr_addr_of)]
let addr = (vtable(self.inner.ptr).object_downcast_mut)(self.inner.by_mut(), target)?;
Some(addr.cast::<E>().deref_mut())
}
}
}
#[cfg(backtrace)]
impl std::any::Provider for Error {
// Called by thiserror when you have `#[source] anyhow::Error`. This provide
// implementation includes the anyhow::Error's Backtrace if any, unlike
// deref'ing to dyn Error where the provide implementation would include
// only the original error's Backtrace from before it got wrapped into an
// anyhow::Error.
fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
unsafe { ErrorImpl::provide(self.inner.by_ref(), demand) }
}
}
#[cfg(feature = "std")]
#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
impl<E> From<E> for Error
where
E: StdError + Send + Sync + 'static,
{
#[cold]
fn from(error: E) -> Self {
let backtrace = backtrace_if_absent!(&error);
Error::from_std(error, backtrace)
}
}
#[cfg(feature = "std")]
#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
impl Deref for Error {
type Target = dyn StdError + Send + Sync + 'static;
fn deref(&self) -> &Self::Target {
unsafe { ErrorImpl::error(self.inner.by_ref()) }
}
}
#[cfg(feature = "std")]
#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
impl DerefMut for Error {
fn deref_mut(&mut self) -> &mut Self::Target {
unsafe { ErrorImpl::error_mut(self.inner.by_mut()) }
}
}
impl Display for Error {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
unsafe { ErrorImpl::display(self.inner.by_ref(), formatter) }
}
}
impl Debug for Error {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
unsafe { ErrorImpl::debug(self.inner.by_ref(), formatter) }
}
}
impl Drop for Error {
fn drop(&mut self) {
unsafe {
// Invoke the vtable's drop behavior.
(vtable(self.inner.ptr).object_drop)(self.inner);
}
}
}
struct ErrorVTable {
object_drop: unsafe fn(Own<ErrorImpl>),
object_ref: unsafe fn(Ref<ErrorImpl>) -> Ref<dyn StdError + Send + Sync + 'static>,
#[cfg(all(feature = "std", anyhow_no_ptr_addr_of))]
object_mut: unsafe fn(Mut<ErrorImpl>) -> &mut (dyn StdError + Send + Sync + 'static),
object_boxed: unsafe fn(Own<ErrorImpl>) -> Box<dyn StdError + Send + Sync + 'static>,
object_downcast: unsafe fn(Ref<ErrorImpl>, TypeId) -> Option<Ref<()>>,
#[cfg(anyhow_no_ptr_addr_of)]
object_downcast_mut: unsafe fn(Mut<ErrorImpl>, TypeId) -> Option<Mut<()>>,
object_drop_rest: unsafe fn(Own<ErrorImpl>, TypeId),
#[cfg(all(not(backtrace), feature = "backtrace"))]
object_backtrace: unsafe fn(Ref<ErrorImpl>) -> Option<&Backtrace>,
}
// Safety: requires layout of *e to match ErrorImpl<E>.
unsafe fn object_drop<E>(e: Own<ErrorImpl>) {
// Cast back to ErrorImpl<E> so that the allocator receives the correct
// Layout to deallocate the Box's memory.
let unerased = e.cast::<ErrorImpl<E>>().boxed();
drop(unerased);
}
// Safety: requires layout of *e to match ErrorImpl<E>.
unsafe fn object_drop_front<E>(e: Own<ErrorImpl>, target: TypeId) {
// Drop the fields of ErrorImpl other than E as well as the Box allocation,
// without dropping E itself. This is used by downcast after doing a
// ptr::read to take ownership of the E.
let _ = target;
let unerased = e.cast::<ErrorImpl<ManuallyDrop<E>>>().boxed();
drop(unerased);
}
// Safety: requires layout of *e to match ErrorImpl<E>.
unsafe fn object_ref<E>(e: Ref<ErrorImpl>) -> Ref<dyn StdError + Send + Sync + 'static>
where
E: StdError + Send + Sync + 'static,
{
// Attach E's native StdError vtable onto a pointer to self._object.
let unerased = e.cast::<ErrorImpl<E>>();
#[cfg(not(anyhow_no_ptr_addr_of))]
return Ref::from_raw(NonNull::new_unchecked(
ptr::addr_of!((*unerased.as_ptr())._object) as *mut E,
));
#[cfg(anyhow_no_ptr_addr_of)]
return Ref::new(&unerased.deref()._object);
}
// Safety: requires layout of *e to match ErrorImpl<E>, and for `e` to be derived
// from a `&mut`
#[cfg(all(feature = "std", anyhow_no_ptr_addr_of))]
unsafe fn object_mut<E>(e: Mut<ErrorImpl>) -> &mut (dyn StdError + Send + Sync + 'static)
where
E: StdError + Send + Sync + 'static,
{
// Attach E's native StdError vtable onto a pointer to self._object.
&mut e.cast::<ErrorImpl<E>>().deref_mut()._object
}
// Safety: requires layout of *e to match ErrorImpl<E>.
unsafe fn object_boxed<E>(e: Own<ErrorImpl>) -> Box<dyn StdError + Send + Sync + 'static>
where
E: StdError + Send + Sync + 'static,
{
// Attach ErrorImpl<E>'s native StdError vtable. The StdError impl is below.
e.cast::<ErrorImpl<E>>().boxed()
}
// Safety: requires layout of *e to match ErrorImpl<E>.
unsafe fn object_downcast<E>(e: Ref<ErrorImpl>, target: TypeId) -> Option<Ref<()>>
where
E: 'static,
{
if TypeId::of::<E>() == target {
// Caller is looking for an E pointer and e is ErrorImpl<E>, take a
// pointer to its E field.
let unerased = e.cast::<ErrorImpl<E>>();
#[cfg(not(anyhow_no_ptr_addr_of))]
return Some(
Ref::from_raw(NonNull::new_unchecked(
ptr::addr_of!((*unerased.as_ptr())._object) as *mut E,
))
.cast::<()>(),
);
#[cfg(anyhow_no_ptr_addr_of)]
return Some(Ref::new(&unerased.deref()._object).cast::<()>());
} else {
None
}
}
// Safety: requires layout of *e to match ErrorImpl<E>.
#[cfg(anyhow_no_ptr_addr_of)]
unsafe fn object_downcast_mut<E>(e: Mut<ErrorImpl>, target: TypeId) -> Option<Mut<()>>
where
E: 'static,
{
if TypeId::of::<E>() == target {
// Caller is looking for an E pointer and e is ErrorImpl<E>, take a
// pointer to its E field.
let unerased = e.cast::<ErrorImpl<E>>().deref_mut();
Some(Mut::new(&mut unerased._object).cast::<()>())
} else {
None
}
}
#[cfg(all(not(backtrace), feature = "backtrace"))]
fn no_backtrace(e: Ref<ErrorImpl>) -> Option<&Backtrace> {
let _ = e;
None
}
// Safety: requires layout of *e to match ErrorImpl<ContextError<C, E>>.
#[cfg(feature = "std")]
unsafe fn context_downcast<C, E>(e: Ref<ErrorImpl>, target: TypeId) -> Option<Ref<()>>
where
C: 'static,
E: 'static,
{
if TypeId::of::<C>() == target {
let unerased = e.cast::<ErrorImpl<ContextError<C, E>>>().deref();
Some(Ref::new(&unerased._object.context).cast::<()>())
} else if TypeId::of::<E>() == target {
let unerased = e.cast::<ErrorImpl<ContextError<C, E>>>().deref();
Some(Ref::new(&unerased._object.error).cast::<()>())
} else {
None
}
}
// Safety: requires layout of *e to match ErrorImpl<ContextError<C, E>>.
#[cfg(all(feature = "std", anyhow_no_ptr_addr_of))]
unsafe fn context_downcast_mut<C, E>(e: Mut<ErrorImpl>, target: TypeId) -> Option<Mut<()>>
where
C: 'static,
E: 'static,
{
if TypeId::of::<C>() == target {
let unerased = e.cast::<ErrorImpl<ContextError<C, E>>>().deref_mut();
Some(Mut::new(&mut unerased._object.context).cast::<()>())
} else if TypeId::of::<E>() == target {
let unerased = e.cast::<ErrorImpl<ContextError<C, E>>>().deref_mut();
Some(Mut::new(&mut unerased._object.error).cast::<()>())
} else {
None
}
}
// Safety: requires layout of *e to match ErrorImpl<ContextError<C, E>>.
#[cfg(feature = "std")]
unsafe fn context_drop_rest<C, E>(e: Own<ErrorImpl>, target: TypeId)
where
C: 'static,
E: 'static,
{
// Called after downcasting by value to either the C or the E and doing a
// ptr::read to take ownership of that value.
if TypeId::of::<C>() == target {
let unerased = e
.cast::<ErrorImpl<ContextError<ManuallyDrop<C>, E>>>()
.boxed();
drop(unerased);
} else {
let unerased = e
.cast::<ErrorImpl<ContextError<C, ManuallyDrop<E>>>>()
.boxed();
drop(unerased);
}
}
// Safety: requires layout of *e to match ErrorImpl<ContextError<C, Error>>.
unsafe fn context_chain_downcast<C>(e: Ref<ErrorImpl>, target: TypeId) -> Option<Ref<()>>
where
C: 'static,
{
let unerased = e.cast::<ErrorImpl<ContextError<C, Error>>>().deref();
if TypeId::of::<C>() == target {
Some(Ref::new(&unerased._object.context).cast::<()>())
} else {
// Recurse down the context chain per the inner error's vtable.
let source = &unerased._object.error;
(vtable(source.inner.ptr).object_downcast)(source.inner.by_ref(), target)
}
}
// Safety: requires layout of *e to match ErrorImpl<ContextError<C, Error>>.
#[cfg(anyhow_no_ptr_addr_of)]
unsafe fn context_chain_downcast_mut<C>(e: Mut<ErrorImpl>, target: TypeId) -> Option<Mut<()>>
where
C: 'static,
{
let unerased = e.cast::<ErrorImpl<ContextError<C, Error>>>().deref_mut();
if TypeId::of::<C>() == target {
Some(Mut::new(&mut unerased._object.context).cast::<()>())
} else {
// Recurse down the context chain per the inner error's vtable.
let source = &mut unerased._object.error;
(vtable(source.inner.ptr).object_downcast_mut)(source.inner.by_mut(), target)
}
}
// Safety: requires layout of *e to match ErrorImpl<ContextError<C, Error>>.
unsafe fn context_chain_drop_rest<C>(e: Own<ErrorImpl>, target: TypeId)
where
C: 'static,
{
// Called after downcasting by value to either the C or one of the causes
// and doing a ptr::read to take ownership of that value.
if TypeId::of::<C>() == target {
let unerased = e
.cast::<ErrorImpl<ContextError<ManuallyDrop<C>, Error>>>()
.boxed();
// Drop the entire rest of the data structure rooted in the next Error.
drop(unerased);
} else {
let unerased = e
.cast::<ErrorImpl<ContextError<C, ManuallyDrop<Error>>>>()
.boxed();
// Read the Own<ErrorImpl> from the next error.
let inner = unerased._object.error.inner;
drop(unerased);
let vtable = vtable(inner.ptr);
// Recursively drop the next error using the same target typeid.
(vtable.object_drop_rest)(inner, target);
}
}
// Safety: requires layout of *e to match ErrorImpl<ContextError<C, Error>>.
#[cfg(all(not(backtrace), feature = "backtrace"))]
#[allow(clippy::unnecessary_wraps)]
unsafe fn context_backtrace<C>(e: Ref<ErrorImpl>) -> Option<&Backtrace>
where
C: 'static,
{
let unerased = e.cast::<ErrorImpl<ContextError<C, Error>>>().deref();
let backtrace = ErrorImpl::backtrace(unerased._object.error.inner.by_ref());
Some(backtrace)
}
// NOTE: If working with `ErrorImpl<()>`, references should be avoided in favor
// of raw pointers and `NonNull`.
// repr C to ensure that E remains in the final position.
#[repr(C)]
pub(crate) struct ErrorImpl<E = ()> {
vtable: &'static ErrorVTable,
backtrace: Option<Backtrace>,
// NOTE: Don't use directly. Use only through vtable. Erased type may have
// different alignment.
_object: E,
}
// Reads the vtable out of `p`. This is the same as `p.as_ref().vtable`, but
// avoids converting `p` into a reference.
unsafe fn vtable(p: NonNull<ErrorImpl>) -> &'static ErrorVTable {
// NOTE: This assumes that `ErrorVTable` is the first field of ErrorImpl.
*(p.as_ptr() as *const &'static ErrorVTable)
}
// repr C to ensure that ContextError<C, E> has the same layout as
// ContextError<ManuallyDrop<C>, E> and ContextError<C, ManuallyDrop<E>>.
#[repr(C)]
pub(crate) struct ContextError<C, E> {
pub context: C,
pub error: E,
}
impl<E> ErrorImpl<E> {
fn erase(&self) -> Ref<ErrorImpl> {
// Erase the concrete type of E but preserve the vtable in self.vtable
// for manipulating the resulting thin pointer. This is analogous to an
// unsize coercion.
Ref::new(self).cast::<ErrorImpl>()
}
}
impl ErrorImpl {
pub(crate) unsafe fn error(this: Ref<Self>) -> &(dyn StdError + Send + Sync + 'static) {
// Use vtable to attach E's native StdError vtable for the right
// original type E.
(vtable(this.ptr).object_ref)(this).deref()
}
#[cfg(feature = "std")]
pub(crate) unsafe fn error_mut(this: Mut<Self>) -> &mut (dyn StdError + Send + Sync + 'static) {
// Use vtable to attach E's native StdError vtable for the right
// original type E.
#[cfg(not(anyhow_no_ptr_addr_of))]
return (vtable(this.ptr).object_ref)(this.by_ref())
.by_mut()
.deref_mut();
#[cfg(anyhow_no_ptr_addr_of)]
return (vtable(this.ptr).object_mut)(this);
}
#[cfg(any(backtrace, feature = "backtrace"))]
pub(crate) unsafe fn backtrace(this: Ref<Self>) -> &Backtrace {
// This unwrap can only panic if the underlying error's backtrace method
// is nondeterministic, which would only happen in maliciously
// constructed code.
this.deref()
.backtrace
.as_ref()
.or_else(|| {
#[cfg(backtrace)]
return Self::error(this).request_ref::<Backtrace>();
#[cfg(not(backtrace))]
return (vtable(this.ptr).object_backtrace)(this);
})
.expect("backtrace capture failed")
}
#[cfg(backtrace)]
unsafe fn provide<'a>(this: Ref<'a, Self>, demand: &mut Demand<'a>) {
if let Some(backtrace) = &this.deref().backtrace {
demand.provide_ref(backtrace);
}
Self::error(this).provide(demand);
}
#[cold]
pub(crate) unsafe fn chain(this: Ref<Self>) -> Chain {
Chain::new(Self::error(this))
}
}
impl<E> StdError for ErrorImpl<E>
where
E: StdError,
{
fn source(&self) -> Option<&(dyn StdError + 'static)> {
unsafe { ErrorImpl::error(self.erase()).source() }
}
#[cfg(backtrace)]
fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
unsafe { ErrorImpl::provide(self.erase(), demand) }
}
}
impl<E> Debug for ErrorImpl<E>
where
E: Debug,
{
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
unsafe { ErrorImpl::debug(self.erase(), formatter) }
}
}
impl<E> Display for ErrorImpl<E>
where
E: Display,
{
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
unsafe { Display::fmt(ErrorImpl::error(self.erase()), formatter) }
}
}
impl From<Error> for Box<dyn StdError + Send + Sync + 'static> {
#[cold]
fn from(error: Error) -> Self {
let outer = ManuallyDrop::new(error);
unsafe {
// Use vtable to attach ErrorImpl<E>'s native StdError vtable for
// the right original type E.
(vtable(outer.inner.ptr).object_boxed)(outer.inner)
}
}
}
impl From<Error> for Box<dyn StdError + Send + 'static> {
fn from(error: Error) -> Self {
Box::<dyn StdError + Send + Sync>::from(error)
}
}
impl From<Error> for Box<dyn StdError + 'static> {
fn from(error: Error) -> Self {
Box::<dyn StdError + Send + Sync>::from(error)
}
}
#[cfg(feature = "std")]
impl AsRef<dyn StdError + Send + Sync> for Error {
fn as_ref(&self) -> &(dyn StdError + Send + Sync + 'static) {
&**self
}
}
#[cfg(feature = "std")]
impl AsRef<dyn StdError> for Error {
fn as_ref(&self) -> &(dyn StdError + 'static) {
&**self
}
}

155
vendor/anyhow/src/fmt.rs vendored
View file

@ -1,155 +0,0 @@
use crate::chain::Chain;
use crate::error::ErrorImpl;
use crate::ptr::Ref;
use core::fmt::{self, Debug, Write};
impl ErrorImpl {
pub(crate) unsafe fn display(this: Ref<Self>, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", Self::error(this))?;
if f.alternate() {
for cause in Self::chain(this).skip(1) {
write!(f, ": {}", cause)?;
}
}
Ok(())
}
pub(crate) unsafe fn debug(this: Ref<Self>, f: &mut fmt::Formatter) -> fmt::Result {
let error = Self::error(this);
if f.alternate() {
return Debug::fmt(error, f);
}
write!(f, "{}", error)?;
if let Some(cause) = error.source() {
write!(f, "\n\nCaused by:")?;
let multiple = cause.source().is_some();
for (n, error) in Chain::new(cause).enumerate() {
writeln!(f)?;
let mut indented = Indented {
inner: f,
number: if multiple { Some(n) } else { None },
started: false,
};
write!(indented, "{}", error)?;
}
}
#[cfg(any(backtrace, feature = "backtrace"))]
{
use crate::backtrace::BacktraceStatus;
let backtrace = Self::backtrace(this);
if let BacktraceStatus::Captured = backtrace.status() {
let mut backtrace = backtrace.to_string();
write!(f, "\n\n")?;
if backtrace.starts_with("stack backtrace:") {
// Capitalize to match "Caused by:"
backtrace.replace_range(0..1, "S");
} else {
// "stack backtrace:" prefix was removed in
// https://github.com/rust-lang/backtrace-rs/pull/286
writeln!(f, "Stack backtrace:")?;
}
backtrace.truncate(backtrace.trim_end().len());
write!(f, "{}", backtrace)?;
}
}
Ok(())
}
}
struct Indented<'a, D> {
inner: &'a mut D,
number: Option<usize>,
started: bool,
}
impl<T> Write for Indented<'_, T>
where
T: Write,
{
fn write_str(&mut self, s: &str) -> fmt::Result {
for (i, line) in s.split('\n').enumerate() {
if !self.started {
self.started = true;
match self.number {
Some(number) => write!(self.inner, "{: >5}: ", number)?,
None => self.inner.write_str(" ")?,
}
} else if i > 0 {
self.inner.write_char('\n')?;
if self.number.is_some() {
self.inner.write_str(" ")?;
} else {
self.inner.write_str(" ")?;
}
}
self.inner.write_str(line)?;
}
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn one_digit() {
let input = "verify\nthis";
let expected = " 2: verify\n this";
let mut output = String::new();
Indented {
inner: &mut output,
number: Some(2),
started: false,
}
.write_str(input)
.unwrap();
assert_eq!(expected, output);
}
#[test]
fn two_digits() {
let input = "verify\nthis";
let expected = " 12: verify\n this";
let mut output = String::new();
Indented {
inner: &mut output,
number: Some(12),
started: false,
}
.write_str(input)
.unwrap();
assert_eq!(expected, output);
}
#[test]
fn no_digits() {
let input = "verify\nthis";
let expected = " verify\n this";
let mut output = String::new();
Indented {
inner: &mut output,
number: None,
started: false,
}
.write_str(input)
.unwrap();
assert_eq!(expected, output);
}
}

116
vendor/anyhow/src/kind.rs vendored
View file

@ -1,116 +0,0 @@
// Tagged dispatch mechanism for resolving the behavior of `anyhow!($expr)`.
//
// When anyhow! is given a single expr argument to turn into anyhow::Error, we
// want the resulting Error to pick up the input's implementation of source()
// and backtrace() if it has a std::error::Error impl, otherwise require nothing
// more than Display and Debug.
//
// Expressed in terms of specialization, we want something like:
//
// trait AnyhowNew {
// fn new(self) -> Error;
// }
//
// impl<T> AnyhowNew for T
// where
// T: Display + Debug + Send + Sync + 'static,
// {
// default fn new(self) -> Error {
// /* no std error impl */
// }
// }
//
// impl<T> AnyhowNew for T
// where
// T: std::error::Error + Send + Sync + 'static,
// {
// fn new(self) -> Error {
// /* use std error's source() and backtrace() */
// }
// }
//
// Since specialization is not stable yet, instead we rely on autoref behavior
// of method resolution to perform tagged dispatch. Here we have two traits
// AdhocKind and TraitKind that both have an anyhow_kind() method. AdhocKind is
// implemented whether or not the caller's type has a std error impl, while
// TraitKind is implemented only when a std error impl does exist. The ambiguity
// is resolved by AdhocKind requiring an extra autoref so that it has lower
// precedence.
//
// The anyhow! macro will set up the call in this form:
//
// #[allow(unused_imports)]
// use $crate::__private::{AdhocKind, TraitKind};
// let error = $msg;
// (&error).anyhow_kind().new(error)
use crate::Error;
use core::fmt::{Debug, Display};
#[cfg(feature = "std")]
use crate::StdError;
pub struct Adhoc;
pub trait AdhocKind: Sized {
#[inline]
fn anyhow_kind(&self) -> Adhoc {
Adhoc
}
}
impl<T> AdhocKind for &T where T: ?Sized + Display + Debug + Send + Sync + 'static {}
impl Adhoc {
#[cold]
pub fn new<M>(self, message: M) -> Error
where
M: Display + Debug + Send + Sync + 'static,
{
Error::from_adhoc(message, backtrace!())
}
}
pub struct Trait;
pub trait TraitKind: Sized {
#[inline]
fn anyhow_kind(&self) -> Trait {
Trait
}
}
impl<E> TraitKind for E where E: Into<Error> {}
impl Trait {
#[cold]
pub fn new<E>(self, error: E) -> Error
where
E: Into<Error>,
{
error.into()
}
}
#[cfg(feature = "std")]
pub struct Boxed;
#[cfg(feature = "std")]
pub trait BoxedKind: Sized {
#[inline]
fn anyhow_kind(&self) -> Boxed {
Boxed
}
}
#[cfg(feature = "std")]
impl BoxedKind for Box<dyn StdError + Send + Sync> {}
#[cfg(feature = "std")]
impl Boxed {
#[cold]
pub fn new(self, error: Box<dyn StdError + Send + Sync>) -> Error {
let backtrace = backtrace_if_absent!(&*error);
Error::from_boxed(error, backtrace)
}
}

680
vendor/anyhow/src/lib.rs vendored
View file

@ -1,680 +0,0 @@
//! [![github]](https://github.com/dtolnay/anyhow)&ensp;[![crates-io]](https://crates.io/crates/anyhow)&ensp;[![docs-rs]](https://docs.rs/anyhow)
//!
//! [github]: https://img.shields.io/badge/github-8da0cb?style=for-the-badge&labelColor=555555&logo=github
//! [crates-io]: https://img.shields.io/badge/crates.io-fc8d62?style=for-the-badge&labelColor=555555&logo=rust
//! [docs-rs]: https://img.shields.io/badge/docs.rs-66c2a5?style=for-the-badge&labelColor=555555&logo=docs.rs
//!
//! <br>
//!
//! This library provides [`anyhow::Error`][Error], a trait object based error
//! type for easy idiomatic error handling in Rust applications.
//!
//! <br>
//!
//! # Details
//!
//! - Use `Result<T, anyhow::Error>`, or equivalently `anyhow::Result<T>`, as
//! the return type of any fallible function.
//!
//! Within the function, use `?` to easily propagate any error that implements
//! the `std::error::Error` trait.
//!
//! ```
//! # pub trait Deserialize {}
//! #
//! # mod serde_json {
//! # use super::Deserialize;
//! # use std::io;
//! #
//! # pub fn from_str<T: Deserialize>(json: &str) -> io::Result<T> {
//! # unimplemented!()
//! # }
//! # }
//! #
//! # struct ClusterMap;
//! #
//! # impl Deserialize for ClusterMap {}
//! #
//! use anyhow::Result;
//!
//! fn get_cluster_info() -> Result<ClusterMap> {
//! let config = std::fs::read_to_string("cluster.json")?;
//! let map: ClusterMap = serde_json::from_str(&config)?;
//! Ok(map)
//! }
//! #
//! # fn main() {}
//! ```
//!
//! - Attach context to help the person troubleshooting the error understand
//! where things went wrong. A low-level error like "No such file or
//! directory" can be annoying to debug without more context about what higher
//! level step the application was in the middle of.
//!
//! ```
//! # struct It;
//! #
//! # impl It {
//! # fn detach(&self) -> Result<()> {
//! # unimplemented!()
//! # }
//! # }
//! #
//! use anyhow::{Context, Result};
//!
//! fn main() -> Result<()> {
//! # return Ok(());
//! #
//! # const _: &str = stringify! {
//! ...
//! # };
//! #
//! # let it = It;
//! # let path = "./path/to/instrs.json";
//! #
//! it.detach().context("Failed to detach the important thing")?;
//!
//! let content = std::fs::read(path)
//! .with_context(|| format!("Failed to read instrs from {}", path))?;
//! #
//! # const _: &str = stringify! {
//! ...
//! # };
//! #
//! # Ok(())
//! }
//! ```
//!
//! ```console
//! Error: Failed to read instrs from ./path/to/instrs.json
//!
//! Caused by:
//! No such file or directory (os error 2)
//! ```
//!
//! - Downcasting is supported and can be by value, by shared reference, or by
//! mutable reference as needed.
//!
//! ```
//! # use anyhow::anyhow;
//! # use std::fmt::{self, Display};
//! # use std::task::Poll;
//! #
//! # #[derive(Debug)]
//! # enum DataStoreError {
//! # Censored(()),
//! # }
//! #
//! # impl Display for DataStoreError {
//! # fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
//! # unimplemented!()
//! # }
//! # }
//! #
//! # impl std::error::Error for DataStoreError {}
//! #
//! # const REDACTED_CONTENT: () = ();
//! #
//! # let error = anyhow!("...");
//! # let root_cause = &error;
//! #
//! # let ret =
//! // If the error was caused by redaction, then return a
//! // tombstone instead of the content.
//! match root_cause.downcast_ref::<DataStoreError>() {
//! Some(DataStoreError::Censored(_)) => Ok(Poll::Ready(REDACTED_CONTENT)),
//! None => Err(error),
//! }
//! # ;
//! ```
//!
//! - If using the nightly channel, or stable with `features = ["backtrace"]`, a
//! backtrace is captured and printed with the error if the underlying error
//! type does not already provide its own. In order to see backtraces, they
//! must be enabled through the environment variables described in
//! [`std::backtrace`]:
//!
//! - If you want panics and errors to both have backtraces, set
//! `RUST_BACKTRACE=1`;
//! - If you want only errors to have backtraces, set `RUST_LIB_BACKTRACE=1`;
//! - If you want only panics to have backtraces, set `RUST_BACKTRACE=1` and
//! `RUST_LIB_BACKTRACE=0`.
//!
//! The tracking issue for this feature is [rust-lang/rust#53487].
//!
//! [`std::backtrace`]: https://doc.rust-lang.org/std/backtrace/index.html#environment-variables
//! [rust-lang/rust#53487]: https://github.com/rust-lang/rust/issues/53487
//!
//! - Anyhow works with any error type that has an impl of `std::error::Error`,
//! including ones defined in your crate. We do not bundle a `derive(Error)`
//! macro but you can write the impls yourself or use a standalone macro like
//! [thiserror].
//!
//! [thiserror]: https://github.com/dtolnay/thiserror
//!
//! ```
//! use thiserror::Error;
//!
//! #[derive(Error, Debug)]
//! pub enum FormatError {
//! #[error("Invalid header (expected {expected:?}, got {found:?})")]
//! InvalidHeader {
//! expected: String,
//! found: String,
//! },
//! #[error("Missing attribute: {0}")]
//! MissingAttribute(String),
//! }
//! ```
//!
//! - One-off error messages can be constructed using the `anyhow!` macro, which
//! supports string interpolation and produces an `anyhow::Error`.
//!
//! ```
//! # use anyhow::{anyhow, Result};
//! #
//! # fn demo() -> Result<()> {
//! # let missing = "...";
//! return Err(anyhow!("Missing attribute: {}", missing));
//! # Ok(())
//! # }
//! ```
//!
//! A `bail!` macro is provided as a shorthand for the same early return.
//!
//! ```
//! # use anyhow::{bail, Result};
//! #
//! # fn demo() -> Result<()> {
//! # let missing = "...";
//! bail!("Missing attribute: {}", missing);
//! # Ok(())
//! # }
//! ```
//!
//! <br>
//!
//! # No-std support
//!
//! In no_std mode, the same API is almost all available and works the same way.
//! To depend on Anyhow in no_std mode, disable our default enabled "std"
//! feature in Cargo.toml. A global allocator is required.
//!
//! ```toml
//! [dependencies]
//! anyhow = { version = "1.0", default-features = false }
//! ```
//!
//! Since the `?`-based error conversions would normally rely on the
//! `std::error::Error` trait which is only available through std, no_std mode
//! will require an explicit `.map_err(Error::msg)` when working with a
//! non-Anyhow error type inside a function that returns Anyhow's error type.
#![doc(html_root_url = "https://docs.rs/anyhow/1.0.68")]
#![cfg_attr(backtrace, feature(error_generic_member_access, provide_any))]
#![cfg_attr(doc_cfg, feature(doc_cfg))]
#![cfg_attr(not(feature = "std"), no_std)]
#![deny(dead_code, unused_imports, unused_mut)]
#![allow(
clippy::doc_markdown,
clippy::enum_glob_use,
clippy::explicit_auto_deref,
clippy::missing_errors_doc,
clippy::missing_panics_doc,
clippy::module_name_repetitions,
clippy::must_use_candidate,
clippy::needless_doctest_main,
clippy::new_ret_no_self,
clippy::redundant_else,
clippy::return_self_not_must_use,
clippy::unused_self,
clippy::used_underscore_binding,
clippy::wildcard_imports,
clippy::wrong_self_convention
)]
extern crate alloc;
#[macro_use]
mod backtrace;
mod chain;
mod context;
mod ensure;
mod error;
mod fmt;
mod kind;
mod macros;
mod ptr;
mod wrapper;
use crate::error::ErrorImpl;
use crate::ptr::Own;
use core::fmt::Display;
#[cfg(not(feature = "std"))]
use core::fmt::Debug;
#[cfg(feature = "std")]
use std::error::Error as StdError;
#[cfg(not(feature = "std"))]
trait StdError: Debug + Display {
fn source(&self) -> Option<&(dyn StdError + 'static)> {
None
}
}
pub use anyhow as format_err;
/// The `Error` type, a wrapper around a dynamic error type.
///
/// `Error` works a lot like `Box<dyn std::error::Error>`, but with these
/// differences:
///
/// - `Error` requires that the error is `Send`, `Sync`, and `'static`.
/// - `Error` guarantees that a backtrace is available, even if the underlying
/// error type does not provide one.
/// - `Error` is represented as a narrow pointer &mdash; exactly one word in
/// size instead of two.
///
/// <br>
///
/// # Display representations
///
/// When you print an error object using "{}" or to_string(), only the outermost
/// underlying error or context is printed, not any of the lower level causes.
/// This is exactly as if you had called the Display impl of the error from
/// which you constructed your anyhow::Error.
///
/// ```console
/// Failed to read instrs from ./path/to/instrs.json
/// ```
///
/// To print causes as well using anyhow's default formatting of causes, use the
/// alternate selector "{:#}".
///
/// ```console
/// Failed to read instrs from ./path/to/instrs.json: No such file or directory (os error 2)
/// ```
///
/// The Debug format "{:?}" includes your backtrace if one was captured. Note
/// that this is the representation you get by default if you return an error
/// from `fn main` instead of printing it explicitly yourself.
///
/// ```console
/// Error: Failed to read instrs from ./path/to/instrs.json
///
/// Caused by:
/// No such file or directory (os error 2)
/// ```
///
/// and if there is a backtrace available:
///
/// ```console
/// Error: Failed to read instrs from ./path/to/instrs.json
///
/// Caused by:
/// No such file or directory (os error 2)
///
/// Stack backtrace:
/// 0: <E as anyhow::context::ext::StdError>::ext_context
/// at /git/anyhow/src/backtrace.rs:26
/// 1: core::result::Result<T,E>::map_err
/// at /git/rustc/src/libcore/result.rs:596
/// 2: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context
/// at /git/anyhow/src/context.rs:58
/// 3: testing::main
/// at src/main.rs:5
/// 4: std::rt::lang_start
/// at /git/rustc/src/libstd/rt.rs:61
/// 5: main
/// 6: __libc_start_main
/// 7: _start
/// ```
///
/// To see a conventional struct-style Debug representation, use "{:#?}".
///
/// ```console
/// Error {
/// context: "Failed to read instrs from ./path/to/instrs.json",
/// source: Os {
/// code: 2,
/// kind: NotFound,
/// message: "No such file or directory",
/// },
/// }
/// ```
///
/// If none of the built-in representations are appropriate and you would prefer
/// to render the error and its cause chain yourself, it can be done something
/// like this:
///
/// ```
/// use anyhow::{Context, Result};
///
/// fn main() {
/// if let Err(err) = try_main() {
/// eprintln!("ERROR: {}", err);
/// err.chain().skip(1).for_each(|cause| eprintln!("because: {}", cause));
/// std::process::exit(1);
/// }
/// }
///
/// fn try_main() -> Result<()> {
/// # const IGNORE: &str = stringify! {
/// ...
/// # };
/// # Ok(())
/// }
/// ```
#[repr(transparent)]
pub struct Error {
inner: Own<ErrorImpl>,
}
/// Iterator of a chain of source errors.
///
/// This type is the iterator returned by [`Error::chain`].
///
/// # Example
///
/// ```
/// use anyhow::Error;
/// use std::io;
///
/// pub fn underlying_io_error_kind(error: &Error) -> Option<io::ErrorKind> {
/// for cause in error.chain() {
/// if let Some(io_error) = cause.downcast_ref::<io::Error>() {
/// return Some(io_error.kind());
/// }
/// }
/// None
/// }
/// ```
#[cfg(feature = "std")]
#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
#[derive(Clone)]
pub struct Chain<'a> {
state: crate::chain::ChainState<'a>,
}
/// `Result<T, Error>`
///
/// This is a reasonable return type to use throughout your application but also
/// for `fn main`; if you do, failures will be printed along with any
/// [context][Context] and a backtrace if one was captured.
///
/// `anyhow::Result` may be used with one *or* two type parameters.
///
/// ```rust
/// use anyhow::Result;
///
/// # const IGNORE: &str = stringify! {
/// fn demo1() -> Result<T> {...}
/// // ^ equivalent to std::result::Result<T, anyhow::Error>
///
/// fn demo2() -> Result<T, OtherError> {...}
/// // ^ equivalent to std::result::Result<T, OtherError>
/// # };
/// ```
///
/// # Example
///
/// ```
/// # pub trait Deserialize {}
/// #
/// # mod serde_json {
/// # use super::Deserialize;
/// # use std::io;
/// #
/// # pub fn from_str<T: Deserialize>(json: &str) -> io::Result<T> {
/// # unimplemented!()
/// # }
/// # }
/// #
/// # #[derive(Debug)]
/// # struct ClusterMap;
/// #
/// # impl Deserialize for ClusterMap {}
/// #
/// use anyhow::Result;
///
/// fn main() -> Result<()> {
/// # return Ok(());
/// let config = std::fs::read_to_string("cluster.json")?;
/// let map: ClusterMap = serde_json::from_str(&config)?;
/// println!("cluster info: {:#?}", map);
/// Ok(())
/// }
/// ```
pub type Result<T, E = Error> = core::result::Result<T, E>;
/// Provides the `context` method for `Result`.
///
/// This trait is sealed and cannot be implemented for types outside of
/// `anyhow`.
///
/// <br>
///
/// # Example
///
/// ```
/// use anyhow::{Context, Result};
/// use std::fs;
/// use std::path::PathBuf;
///
/// pub struct ImportantThing {
/// path: PathBuf,
/// }
///
/// impl ImportantThing {
/// # const IGNORE: &'static str = stringify! {
/// pub fn detach(&mut self) -> Result<()> {...}
/// # };
/// # fn detach(&mut self) -> Result<()> {
/// # unimplemented!()
/// # }
/// }
///
/// pub fn do_it(mut it: ImportantThing) -> Result<Vec<u8>> {
/// it.detach().context("Failed to detach the important thing")?;
///
/// let path = &it.path;
/// let content = fs::read(path)
/// .with_context(|| format!("Failed to read instrs from {}", path.display()))?;
///
/// Ok(content)
/// }
/// ```
///
/// When printed, the outermost context would be printed first and the lower
/// level underlying causes would be enumerated below.
///
/// ```console
/// Error: Failed to read instrs from ./path/to/instrs.json
///
/// Caused by:
/// No such file or directory (os error 2)
/// ```
///
/// Refer to the [Display representations] documentation for other forms in
/// which this context chain can be rendered.
///
/// [Display representations]: Error#display-representations
///
/// <br>
///
/// # Effect on downcasting
///
/// After attaching context of type `C` onto an error of type `E`, the resulting
/// `anyhow::Error` may be downcast to `C` **or** to `E`.
///
/// That is, in codebases that rely on downcasting, Anyhow's context supports
/// both of the following use cases:
///
/// - **Attaching context whose type is insignificant onto errors whose type
/// is used in downcasts.**
///
/// In other error libraries whose context is not designed this way, it can
/// be risky to introduce context to existing code because new context might
/// break existing working downcasts. In Anyhow, any downcast that worked
/// before adding context will continue to work after you add a context, so
/// you should freely add human-readable context to errors wherever it would
/// be helpful.
///
/// ```
/// # use anyhow::bail;
/// # use thiserror::Error;
/// #
/// # #[derive(Error, Debug)]
/// # #[error("???")]
/// # struct SuspiciousError;
/// #
/// # fn helper() -> Result<()> {
/// # bail!(SuspiciousError);
/// # }
/// #
/// use anyhow::{Context, Result};
///
/// fn do_it() -> Result<()> {
/// helper().context("Failed to complete the work")?;
/// # const IGNORE: &str = stringify! {
/// ...
/// # };
/// # unreachable!()
/// }
///
/// fn main() {
/// let err = do_it().unwrap_err();
/// if let Some(e) = err.downcast_ref::<SuspiciousError>() {
/// // If helper() returned SuspiciousError, this downcast will
/// // correctly succeed even with the context in between.
/// # return;
/// }
/// # panic!("expected downcast to succeed");
/// }
/// ```
///
/// - **Attaching context whose type is used in downcasts onto errors whose
/// type is insignificant.**
///
/// Some codebases prefer to use machine-readable context to categorize
/// lower level errors in a way that will be actionable to higher levels of
/// the application.
///
/// ```
/// # use anyhow::bail;
/// # use thiserror::Error;
/// #
/// # #[derive(Error, Debug)]
/// # #[error("???")]
/// # struct HelperFailed;
/// #
/// # fn helper() -> Result<()> {
/// # bail!("no such file or directory");
/// # }
/// #
/// use anyhow::{Context, Result};
///
/// fn do_it() -> Result<()> {
/// helper().context(HelperFailed)?;
/// # const IGNORE: &str = stringify! {
/// ...
/// # };
/// # unreachable!()
/// }
///
/// fn main() {
/// let err = do_it().unwrap_err();
/// if let Some(e) = err.downcast_ref::<HelperFailed>() {
/// // If helper failed, this downcast will succeed because
/// // HelperFailed is the context that has been attached to
/// // that error.
/// # return;
/// }
/// # panic!("expected downcast to succeed");
/// }
/// ```
pub trait Context<T, E>: context::private::Sealed {
/// Wrap the error value with additional context.
fn context<C>(self, context: C) -> Result<T, Error>
where
C: Display + Send + Sync + 'static;
/// Wrap the error value with additional context that is evaluated lazily
/// only once an error does occur.
fn with_context<C, F>(self, f: F) -> Result<T, Error>
where
C: Display + Send + Sync + 'static,
F: FnOnce() -> C;
}
/// Equivalent to Ok::<_, anyhow::Error>(value).
///
/// This simplifies creation of an anyhow::Result in places where type inference
/// cannot deduce the `E` type of the result &mdash; without needing to write
/// `Ok::<_, anyhow::Error>(value)`.
///
/// One might think that `anyhow::Result::Ok(value)` would work in such cases
/// but it does not.
///
/// ```console
/// error[E0282]: type annotations needed for `std::result::Result<i32, E>`
/// --> src/main.rs:11:13
/// |
/// 11 | let _ = anyhow::Result::Ok(1);
/// | - ^^^^^^^^^^^^^^^^^^ cannot infer type for type parameter `E` declared on the enum `Result`
/// | |
/// | consider giving this pattern the explicit type `std::result::Result<i32, E>`, where the type parameter `E` is specified
/// ```
#[allow(non_snake_case)]
pub fn Ok<T>(t: T) -> Result<T> {
Result::Ok(t)
}
// Not public API. Referenced by macro-generated code.
#[doc(hidden)]
pub mod __private {
use crate::Error;
use alloc::fmt;
use core::fmt::Arguments;
pub use crate::ensure::{BothDebug, NotBothDebug};
pub use alloc::format;
pub use core::result::Result::Err;
pub use core::{concat, format_args, stringify};
#[doc(hidden)]
pub mod kind {
pub use crate::kind::{AdhocKind, TraitKind};
#[cfg(feature = "std")]
pub use crate::kind::BoxedKind;
}
#[doc(hidden)]
#[inline]
#[cold]
pub fn format_err(args: Arguments) -> Error {
#[cfg(anyhow_no_fmt_arguments_as_str)]
let fmt_arguments_as_str = None::<&str>;
#[cfg(not(anyhow_no_fmt_arguments_as_str))]
let fmt_arguments_as_str = args.as_str();
if let Some(message) = fmt_arguments_as_str {
// anyhow!("literal"), can downcast to &'static str
Error::msg(message)
} else {
// anyhow!("interpolate {var}"), can downcast to String
Error::msg(fmt::format(args))
}
}
#[doc(hidden)]
#[inline]
#[cold]
#[must_use]
pub fn must_use(error: Error) -> Error {
error
}
}

231
vendor/anyhow/src/macros.rs vendored
View file

@ -1,231 +0,0 @@
/// Return early with an error.
///
/// This macro is equivalent to `return Err(`[`anyhow!($args...)`][anyhow!]`)`.
///
/// The surrounding function's or closure's return value is required to be
/// `Result<_,`[`anyhow::Error`][crate::Error]`>`.
///
/// [anyhow!]: crate::anyhow
///
/// # Example
///
/// ```
/// # use anyhow::{bail, Result};
/// #
/// # fn has_permission(user: usize, resource: usize) -> bool {
/// # true
/// # }
/// #
/// # fn main() -> Result<()> {
/// # let user = 0;
/// # let resource = 0;
/// #
/// if !has_permission(user, resource) {
/// bail!("permission denied for accessing {}", resource);
/// }
/// # Ok(())
/// # }
/// ```
///
/// ```
/// # use anyhow::{bail, Result};
/// # use thiserror::Error;
/// #
/// # const MAX_DEPTH: usize = 1;
/// #
/// #[derive(Error, Debug)]
/// enum ScienceError {
/// #[error("recursion limit exceeded")]
/// RecursionLimitExceeded,
/// # #[error("...")]
/// # More = (stringify! {
/// ...
/// # }, 1).1,
/// }
///
/// # fn main() -> Result<()> {
/// # let depth = 0;
/// #
/// if depth > MAX_DEPTH {
/// bail!(ScienceError::RecursionLimitExceeded);
/// }
/// # Ok(())
/// # }
/// ```
#[macro_export]
macro_rules! bail {
($msg:literal $(,)?) => {
return $crate::__private::Err($crate::__anyhow!($msg))
};
($err:expr $(,)?) => {
return $crate::__private::Err($crate::__anyhow!($err))
};
($fmt:expr, $($arg:tt)*) => {
return $crate::__private::Err($crate::__anyhow!($fmt, $($arg)*))
};
}
/// Return early with an error if a condition is not satisfied.
///
/// This macro is equivalent to `if !$cond { return
/// Err(`[`anyhow!($args...)`][anyhow!]`); }`.
///
/// The surrounding function's or closure's return value is required to be
/// `Result<_,`[`anyhow::Error`][crate::Error]`>`.
///
/// Analogously to `assert!`, `ensure!` takes a condition and exits the function
/// if the condition fails. Unlike `assert!`, `ensure!` returns an `Error`
/// rather than panicking.
///
/// [anyhow!]: crate::anyhow
///
/// # Example
///
/// ```
/// # use anyhow::{ensure, Result};
/// #
/// # fn main() -> Result<()> {
/// # let user = 0;
/// #
/// ensure!(user == 0, "only user 0 is allowed");
/// # Ok(())
/// # }
/// ```
///
/// ```
/// # use anyhow::{ensure, Result};
/// # use thiserror::Error;
/// #
/// # const MAX_DEPTH: usize = 1;
/// #
/// #[derive(Error, Debug)]
/// enum ScienceError {
/// #[error("recursion limit exceeded")]
/// RecursionLimitExceeded,
/// # #[error("...")]
/// # More = (stringify! {
/// ...
/// # }, 1).1,
/// }
///
/// # fn main() -> Result<()> {
/// # let depth = 0;
/// #
/// ensure!(depth <= MAX_DEPTH, ScienceError::RecursionLimitExceeded);
/// # Ok(())
/// # }
/// ```
#[cfg(doc)]
#[macro_export]
macro_rules! ensure {
($cond:expr $(,)?) => {
if !$cond {
return $crate::__private::Err($crate::Error::msg(
$crate::__private::concat!("Condition failed: `", $crate::__private::stringify!($cond), "`")
));
}
};
($cond:expr, $msg:literal $(,)?) => {
if !$cond {
return $crate::__private::Err($crate::__anyhow!($msg));
}
};
($cond:expr, $err:expr $(,)?) => {
if !$cond {
return $crate::__private::Err($crate::__anyhow!($err));
}
};
($cond:expr, $fmt:expr, $($arg:tt)*) => {
if !$cond {
return $crate::__private::Err($crate::__anyhow!($fmt, $($arg)*));
}
};
}
#[cfg(not(doc))]
#[macro_export]
macro_rules! ensure {
($($tt:tt)*) => {
$crate::__parse_ensure!(
/* state */ 0
/* stack */ ()
/* bail */ ($($tt)*)
/* fuel */ (~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~)
/* parse */ {()}
/* dup */ ($($tt)*)
/* rest */ $($tt)*
)
};
}
/// Construct an ad-hoc error from a string or existing non-`anyhow` error
/// value.
///
/// This evaluates to an [`Error`][crate::Error]. It can take either just a
/// string, or a format string with arguments. It also can take any custom type
/// which implements `Debug` and `Display`.
///
/// If called with a single argument whose type implements `std::error::Error`
/// (in addition to `Debug` and `Display`, which are always required), then that
/// Error impl's `source` is preserved as the `source` of the resulting
/// `anyhow::Error`.
///
/// # Example
///
/// ```
/// # type V = ();
/// #
/// use anyhow::{anyhow, Result};
///
/// fn lookup(key: &str) -> Result<V> {
/// if key.len() != 16 {
/// return Err(anyhow!("key length must be 16 characters, got {:?}", key));
/// }
///
/// // ...
/// # Ok(())
/// }
/// ```
#[macro_export]
macro_rules! anyhow {
($msg:literal $(,)?) => {
$crate::__private::must_use({
let error = $crate::__private::format_err($crate::__private::format_args!($msg));
error
})
};
($err:expr $(,)?) => {
$crate::__private::must_use({
use $crate::__private::kind::*;
let error = match $err {
error => (&error).anyhow_kind().new(error),
};
error
})
};
($fmt:expr, $($arg:tt)*) => {
$crate::Error::msg($crate::__private::format!($fmt, $($arg)*))
};
}
// Not public API. This is used in the implementation of some of the other
// macros, in which the must_use call is not needed because the value is known
// to be used.
#[doc(hidden)]
#[macro_export]
macro_rules! __anyhow {
($msg:literal $(,)?) => ({
let error = $crate::__private::format_err($crate::__private::format_args!($msg));
error
});
($err:expr $(,)?) => ({
use $crate::__private::kind::*;
let error = match $err {
error => (&error).anyhow_kind().new(error),
};
error
});
($fmt:expr, $($arg:tt)*) => {
$crate::Error::msg($crate::__private::format!($fmt, $($arg)*))
};
}

199
vendor/anyhow/src/ptr.rs vendored
View file

@ -1,199 +0,0 @@
use alloc::boxed::Box;
use core::marker::PhantomData;
use core::ptr::NonNull;
#[repr(transparent)]
pub struct Own<T>
where
T: ?Sized,
{
pub ptr: NonNull<T>,
}
unsafe impl<T> Send for Own<T> where T: ?Sized {}
unsafe impl<T> Sync for Own<T> where T: ?Sized {}
impl<T> Copy for Own<T> where T: ?Sized {}
impl<T> Clone for Own<T>
where
T: ?Sized,
{
fn clone(&self) -> Self {
*self
}
}
impl<T> Own<T>
where
T: ?Sized,
{
pub fn new(ptr: Box<T>) -> Self {
Own {
ptr: unsafe { NonNull::new_unchecked(Box::into_raw(ptr)) },
}
}
pub fn cast<U: CastTo>(self) -> Own<U::Target> {
Own {
ptr: self.ptr.cast(),
}
}
pub unsafe fn boxed(self) -> Box<T> {
Box::from_raw(self.ptr.as_ptr())
}
pub fn by_ref(&self) -> Ref<T> {
Ref {
ptr: self.ptr,
lifetime: PhantomData,
}
}
pub fn by_mut(&mut self) -> Mut<T> {
Mut {
ptr: self.ptr,
lifetime: PhantomData,
}
}
}
#[repr(transparent)]
pub struct Ref<'a, T>
where
T: ?Sized,
{
pub ptr: NonNull<T>,
lifetime: PhantomData<&'a T>,
}
impl<'a, T> Copy for Ref<'a, T> where T: ?Sized {}
impl<'a, T> Clone for Ref<'a, T>
where
T: ?Sized,
{
fn clone(&self) -> Self {
*self
}
}
impl<'a, T> Ref<'a, T>
where
T: ?Sized,
{
pub fn new(ptr: &'a T) -> Self {
Ref {
ptr: NonNull::from(ptr),
lifetime: PhantomData,
}
}
#[cfg(not(anyhow_no_ptr_addr_of))]
pub fn from_raw(ptr: NonNull<T>) -> Self {
Ref {
ptr,
lifetime: PhantomData,
}
}
pub fn cast<U: CastTo>(self) -> Ref<'a, U::Target> {
Ref {
ptr: self.ptr.cast(),
lifetime: PhantomData,
}
}
#[cfg(not(anyhow_no_ptr_addr_of))]
pub fn by_mut(self) -> Mut<'a, T> {
Mut {
ptr: self.ptr,
lifetime: PhantomData,
}
}
#[cfg(not(anyhow_no_ptr_addr_of))]
pub fn as_ptr(self) -> *const T {
self.ptr.as_ptr() as *const T
}
pub unsafe fn deref(self) -> &'a T {
&*self.ptr.as_ptr()
}
}
#[repr(transparent)]
pub struct Mut<'a, T>
where
T: ?Sized,
{
pub ptr: NonNull<T>,
lifetime: PhantomData<&'a mut T>,
}
impl<'a, T> Copy for Mut<'a, T> where T: ?Sized {}
impl<'a, T> Clone for Mut<'a, T>
where
T: ?Sized,
{
fn clone(&self) -> Self {
*self
}
}
impl<'a, T> Mut<'a, T>
where
T: ?Sized,
{
#[cfg(anyhow_no_ptr_addr_of)]
pub fn new(ptr: &'a mut T) -> Self {
Mut {
ptr: NonNull::from(ptr),
lifetime: PhantomData,
}
}
pub fn cast<U: CastTo>(self) -> Mut<'a, U::Target> {
Mut {
ptr: self.ptr.cast(),
lifetime: PhantomData,
}
}
#[cfg(not(anyhow_no_ptr_addr_of))]
pub fn by_ref(self) -> Ref<'a, T> {
Ref {
ptr: self.ptr,
lifetime: PhantomData,
}
}
pub fn extend<'b>(self) -> Mut<'b, T> {
Mut {
ptr: self.ptr,
lifetime: PhantomData,
}
}
pub unsafe fn deref_mut(self) -> &'a mut T {
&mut *self.ptr.as_ptr()
}
}
impl<'a, T> Mut<'a, T> {
pub unsafe fn read(self) -> T {
self.ptr.as_ptr().read()
}
}
// Force turbofish on all calls of `.cast::<U>()`.
pub trait CastTo {
type Target;
}
impl<T> CastTo for T {
type Target = T;
}

81
vendor/anyhow/src/wrapper.rs vendored
View file

@ -1,81 +0,0 @@
use crate::StdError;
use core::fmt::{self, Debug, Display};
#[cfg(backtrace)]
use std::any::Demand;
#[repr(transparent)]
pub struct MessageError<M>(pub M);
impl<M> Debug for MessageError<M>
where
M: Display + Debug,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Debug::fmt(&self.0, f)
}
}
impl<M> Display for MessageError<M>
where
M: Display + Debug,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Display::fmt(&self.0, f)
}
}
impl<M> StdError for MessageError<M> where M: Display + Debug + 'static {}
#[repr(transparent)]
pub struct DisplayError<M>(pub M);
impl<M> Debug for DisplayError<M>
where
M: Display,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Display::fmt(&self.0, f)
}
}
impl<M> Display for DisplayError<M>
where
M: Display,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Display::fmt(&self.0, f)
}
}
impl<M> StdError for DisplayError<M> where M: Display + 'static {}
#[cfg(feature = "std")]
#[repr(transparent)]
pub struct BoxedError(pub Box<dyn StdError + Send + Sync>);
#[cfg(feature = "std")]
impl Debug for BoxedError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Debug::fmt(&self.0, f)
}
}
#[cfg(feature = "std")]
impl Display for BoxedError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Display::fmt(&self.0, f)
}
}
#[cfg(feature = "std")]
impl StdError for BoxedError {
fn source(&self) -> Option<&(dyn StdError + 'static)> {
self.0.source()
}
#[cfg(backtrace)]
fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
self.0.provide(demand);
}
}

14
vendor/anyhow/tests/common/mod.rs vendored
View file

@ -1,14 +0,0 @@
use anyhow::{bail, Result};
use std::io;
pub fn bail_literal() -> Result<()> {
bail!("oh no!");
}
pub fn bail_fmt() -> Result<()> {
bail!("{} {}!", "oh", "no");
}
pub fn bail_error() -> Result<()> {
bail!(io::Error::new(io::ErrorKind::Other, "oh no!"));
}

7
vendor/anyhow/tests/compiletest.rs vendored
View file

@ -1,7 +0,0 @@
#[rustversion::attr(not(nightly), ignore)]
#[cfg_attr(miri, ignore)]
#[test]
fn ui() {
let t = trybuild::TestCases::new();
t.compile_fail("tests/ui/*.rs");
}

53
vendor/anyhow/tests/drop/mod.rs vendored
View file

@ -1,53 +0,0 @@
#![allow(clippy::module_name_repetitions)]
use std::error::Error as StdError;
use std::fmt::{self, Display};
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
#[derive(Debug)]
pub struct Flag {
atomic: Arc<AtomicBool>,
}
impl Flag {
pub fn new() -> Self {
Flag {
atomic: Arc::new(AtomicBool::new(false)),
}
}
pub fn get(&self) -> bool {
self.atomic.load(Ordering::Relaxed)
}
}
#[derive(Debug)]
pub struct DetectDrop {
has_dropped: Flag,
}
impl DetectDrop {
pub fn new(has_dropped: &Flag) -> Self {
DetectDrop {
has_dropped: Flag {
atomic: Arc::clone(&has_dropped.atomic),
},
}
}
}
impl StdError for DetectDrop {}
impl Display for DetectDrop {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "oh no!")
}
}
impl Drop for DetectDrop {
fn drop(&mut self) {
let already_dropped = self.has_dropped.atomic.swap(true, Ordering::Relaxed);
assert!(!already_dropped);
}
}

13
vendor/anyhow/tests/test_autotrait.rs vendored
View file

@ -1,13 +0,0 @@
use anyhow::Error;
#[test]
fn test_send() {
fn assert_send<T: Send>() {}
assert_send::<Error>();
}
#[test]
fn test_sync() {
fn assert_sync<T: Sync>() {}
assert_sync::<Error>();
}

13
vendor/anyhow/tests/test_backtrace.rs vendored
View file

@ -1,13 +0,0 @@
#[rustversion::not(nightly)]
#[ignore]
#[test]
fn test_backtrace() {}
#[rustversion::nightly]
#[test]
fn test_backtrace() {
use anyhow::anyhow;
let error = anyhow!("oh no!");
let _ = error.backtrace();
}

45
vendor/anyhow/tests/test_boxed.rs vendored
View file

@ -1,45 +0,0 @@
#![allow(
// Clippy bug: https://github.com/rust-lang/rust-clippy/issues/7422
clippy::nonstandard_macro_braces,
)]
use anyhow::anyhow;
use std::error::Error as StdError;
use std::io;
use thiserror::Error;
#[derive(Error, Debug)]
#[error("outer")]
struct MyError {
source: io::Error,
}
#[test]
fn test_boxed_str() {
let error = Box::<dyn StdError + Send + Sync>::from("oh no!");
let error = anyhow!(error);
assert_eq!("oh no!", error.to_string());
assert_eq!(
"oh no!",
error
.downcast_ref::<Box<dyn StdError + Send + Sync>>()
.unwrap()
.to_string()
);
}
#[test]
fn test_boxed_thiserror() {
let error = MyError {
source: io::Error::new(io::ErrorKind::Other, "oh no!"),
};
let error = anyhow!(error);
assert_eq!("oh no!", error.source().unwrap().to_string());
}
#[test]
fn test_boxed_anyhow() {
let error = anyhow!("oh no!").context("it failed");
let error = anyhow!(error);
assert_eq!("oh no!", error.source().unwrap().to_string());
}

68
vendor/anyhow/tests/test_chain.rs vendored
View file

@ -1,68 +0,0 @@
use anyhow::{anyhow, Chain, Error};
fn error() -> Error {
anyhow!({ 0 }).context(1).context(2).context(3)
}
#[test]
fn test_iter() {
let e = error();
let mut chain = e.chain();
assert_eq!("3", chain.next().unwrap().to_string());
assert_eq!("2", chain.next().unwrap().to_string());
assert_eq!("1", chain.next().unwrap().to_string());
assert_eq!("0", chain.next().unwrap().to_string());
assert!(chain.next().is_none());
assert!(chain.next_back().is_none());
}
#[test]
fn test_rev() {
let e = error();
let mut chain = e.chain().rev();
assert_eq!("0", chain.next().unwrap().to_string());
assert_eq!("1", chain.next().unwrap().to_string());
assert_eq!("2", chain.next().unwrap().to_string());
assert_eq!("3", chain.next().unwrap().to_string());
assert!(chain.next().is_none());
assert!(chain.next_back().is_none());
}
#[test]
fn test_len() {
let e = error();
let mut chain = e.chain();
assert_eq!(4, chain.len());
assert_eq!((4, Some(4)), chain.size_hint());
assert_eq!("3", chain.next().unwrap().to_string());
assert_eq!(3, chain.len());
assert_eq!((3, Some(3)), chain.size_hint());
assert_eq!("0", chain.next_back().unwrap().to_string());
assert_eq!(2, chain.len());
assert_eq!((2, Some(2)), chain.size_hint());
assert_eq!("2", chain.next().unwrap().to_string());
assert_eq!(1, chain.len());
assert_eq!((1, Some(1)), chain.size_hint());
assert_eq!("1", chain.next_back().unwrap().to_string());
assert_eq!(0, chain.len());
assert_eq!((0, Some(0)), chain.size_hint());
assert!(chain.next().is_none());
}
#[test]
fn test_default() {
let mut c = Chain::default();
assert!(c.next().is_none());
}
#[test]
fn test_clone() {
let e = error();
let mut chain = e.chain().clone();
assert_eq!("3", chain.next().unwrap().to_string());
assert_eq!("2", chain.next().unwrap().to_string());
assert_eq!("1", chain.next().unwrap().to_string());
assert_eq!("0", chain.next().unwrap().to_string());
assert!(chain.next().is_none());
assert!(chain.next_back().is_none());
}

172
vendor/anyhow/tests/test_context.rs vendored
View file

@ -1,172 +0,0 @@
#![allow(
// Clippy bug: https://github.com/rust-lang/rust-clippy/issues/7422
clippy::nonstandard_macro_braces,
)]
mod drop;
use crate::drop::{DetectDrop, Flag};
use anyhow::{Context, Error, Result};
use std::fmt::{self, Display};
use thiserror::Error;
// https://github.com/dtolnay/anyhow/issues/18
#[test]
fn test_inference() -> Result<()> {
let x = "1";
let y: u32 = x.parse().context("...")?;
assert_eq!(y, 1);
Ok(())
}
macro_rules! context_type {
($name:ident) => {
#[derive(Debug)]
struct $name {
message: &'static str,
#[allow(dead_code)]
drop: DetectDrop,
}
impl Display for $name {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(self.message)
}
}
};
}
context_type!(HighLevel);
context_type!(MidLevel);
#[derive(Error, Debug)]
#[error("{message}")]
struct LowLevel {
message: &'static str,
drop: DetectDrop,
}
struct Dropped {
low: Flag,
mid: Flag,
high: Flag,
}
impl Dropped {
fn none(&self) -> bool {
!self.low.get() && !self.mid.get() && !self.high.get()
}
fn all(&self) -> bool {
self.low.get() && self.mid.get() && self.high.get()
}
}
fn make_chain() -> (Error, Dropped) {
let dropped = Dropped {
low: Flag::new(),
mid: Flag::new(),
high: Flag::new(),
};
let low = LowLevel {
message: "no such file or directory",
drop: DetectDrop::new(&dropped.low),
};
// impl Context for Result<T, E>
let mid = Err::<(), LowLevel>(low)
.context(MidLevel {
message: "failed to load config",
drop: DetectDrop::new(&dropped.mid),
})
.unwrap_err();
// impl Context for Result<T, Error>
let high = Err::<(), Error>(mid)
.context(HighLevel {
message: "failed to start server",
drop: DetectDrop::new(&dropped.high),
})
.unwrap_err();
(high, dropped)
}
#[test]
fn test_downcast_ref() {
let (err, dropped) = make_chain();
assert!(!err.is::<String>());
assert!(err.downcast_ref::<String>().is_none());
assert!(err.is::<HighLevel>());
let high = err.downcast_ref::<HighLevel>().unwrap();
assert_eq!(high.to_string(), "failed to start server");
assert!(err.is::<MidLevel>());
let mid = err.downcast_ref::<MidLevel>().unwrap();
assert_eq!(mid.to_string(), "failed to load config");
assert!(err.is::<LowLevel>());
let low = err.downcast_ref::<LowLevel>().unwrap();
assert_eq!(low.to_string(), "no such file or directory");
assert!(dropped.none());
drop(err);
assert!(dropped.all());
}
#[test]
fn test_downcast_high() {
let (err, dropped) = make_chain();
let err = err.downcast::<HighLevel>().unwrap();
assert!(!dropped.high.get());
assert!(dropped.low.get() && dropped.mid.get());
drop(err);
assert!(dropped.all());
}
#[test]
fn test_downcast_mid() {
let (err, dropped) = make_chain();
let err = err.downcast::<MidLevel>().unwrap();
assert!(!dropped.mid.get());
assert!(dropped.low.get() && dropped.high.get());
drop(err);
assert!(dropped.all());
}
#[test]
fn test_downcast_low() {
let (err, dropped) = make_chain();
let err = err.downcast::<LowLevel>().unwrap();
assert!(!dropped.low.get());
assert!(dropped.mid.get() && dropped.high.get());
drop(err);
assert!(dropped.all());
}
#[test]
fn test_unsuccessful_downcast() {
let (err, dropped) = make_chain();
let err = err.downcast::<String>().unwrap_err();
assert!(dropped.none());
drop(err);
assert!(dropped.all());
}
#[test]
fn test_root_cause() {
let (err, _) = make_chain();
assert_eq!(err.root_cause().to_string(), "no such file or directory");
}

46
vendor/anyhow/tests/test_convert.rs vendored
View file

@ -1,46 +0,0 @@
#![allow(clippy::unnecessary_wraps)]
mod drop;
use self::drop::{DetectDrop, Flag};
use anyhow::{Error, Result};
use std::error::Error as StdError;
#[test]
fn test_convert() {
let has_dropped = Flag::new();
let error = Error::new(DetectDrop::new(&has_dropped));
let box_dyn = Box::<dyn StdError>::from(error);
assert_eq!("oh no!", box_dyn.to_string());
drop(box_dyn);
assert!(has_dropped.get());
}
#[test]
fn test_convert_send() {
let has_dropped = Flag::new();
let error = Error::new(DetectDrop::new(&has_dropped));
let box_dyn = Box::<dyn StdError + Send>::from(error);
assert_eq!("oh no!", box_dyn.to_string());
drop(box_dyn);
assert!(has_dropped.get());
}
#[test]
fn test_convert_send_sync() {
let has_dropped = Flag::new();
let error = Error::new(DetectDrop::new(&has_dropped));
let box_dyn = Box::<dyn StdError + Send + Sync>::from(error);
assert_eq!("oh no!", box_dyn.to_string());
drop(box_dyn);
assert!(has_dropped.get());
}
#[test]
fn test_question_mark() -> Result<(), Box<dyn StdError>> {
fn f() -> Result<()> {
Ok(())
}
f()?;
Ok(())
}

123
vendor/anyhow/tests/test_downcast.rs vendored
View file

@ -1,123 +0,0 @@
#![allow(clippy::assertions_on_result_states, clippy::wildcard_imports)]
mod common;
mod drop;
use self::common::*;
use self::drop::{DetectDrop, Flag};
use anyhow::Error;
use std::error::Error as StdError;
use std::fmt::{self, Display};
use std::io;
#[test]
fn test_downcast() {
assert_eq!(
"oh no!",
bail_literal().unwrap_err().downcast::<&str>().unwrap(),
);
assert_eq!(
"oh no!",
bail_fmt().unwrap_err().downcast::<String>().unwrap(),
);
assert_eq!(
"oh no!",
bail_error()
.unwrap_err()
.downcast::<io::Error>()
.unwrap()
.to_string(),
);
}
#[test]
fn test_downcast_ref() {
assert_eq!(
"oh no!",
*bail_literal().unwrap_err().downcast_ref::<&str>().unwrap(),
);
assert_eq!(
"oh no!",
bail_fmt().unwrap_err().downcast_ref::<String>().unwrap(),
);
assert_eq!(
"oh no!",
bail_error()
.unwrap_err()
.downcast_ref::<io::Error>()
.unwrap()
.to_string(),
);
}
#[test]
fn test_downcast_mut() {
assert_eq!(
"oh no!",
*bail_literal().unwrap_err().downcast_mut::<&str>().unwrap(),
);
assert_eq!(
"oh no!",
bail_fmt().unwrap_err().downcast_mut::<String>().unwrap(),
);
assert_eq!(
"oh no!",
bail_error()
.unwrap_err()
.downcast_mut::<io::Error>()
.unwrap()
.to_string(),
);
let mut bailed = bail_fmt().unwrap_err();
*bailed.downcast_mut::<String>().unwrap() = "clobber".to_string();
assert_eq!(bailed.downcast_ref::<String>().unwrap(), "clobber");
assert_eq!(bailed.downcast_mut::<String>().unwrap(), "clobber");
assert_eq!(bailed.downcast::<String>().unwrap(), "clobber");
}
#[test]
fn test_drop() {
let has_dropped = Flag::new();
let error = Error::new(DetectDrop::new(&has_dropped));
drop(error.downcast::<DetectDrop>().unwrap());
assert!(has_dropped.get());
}
#[test]
fn test_as_ref() {
let error = bail_error().unwrap_err();
let ref_dyn: &dyn StdError = error.as_ref();
assert_eq!("oh no!", ref_dyn.to_string());
let ref_dyn_send_sync: &(dyn StdError + Send + Sync) = error.as_ref();
assert_eq!("oh no!", ref_dyn_send_sync.to_string());
}
#[test]
fn test_large_alignment() {
#[repr(align(64))]
#[derive(Debug)]
struct LargeAlignedError(&'static str);
impl Display for LargeAlignedError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(self.0)
}
}
impl StdError for LargeAlignedError {}
let error = Error::new(LargeAlignedError("oh no!"));
assert_eq!(
"oh no!",
error.downcast_ref::<LargeAlignedError>().unwrap().0
);
}
#[test]
fn test_unsuccessful_downcast() {
let mut error = bail_error().unwrap_err();
assert!(error.downcast_ref::<&str>().is_none());
assert!(error.downcast_mut::<&str>().is_none());
assert!(error.downcast::<&str>().is_err());
}

718
vendor/anyhow/tests/test_ensure.rs vendored
View file

@ -1,718 +0,0 @@
#![allow(
clippy::bool_to_int_with_if,
clippy::diverging_sub_expression,
clippy::if_same_then_else,
clippy::ifs_same_cond,
clippy::items_after_statements,
clippy::let_and_return,
clippy::match_bool,
clippy::never_loop,
clippy::overly_complex_bool_expr,
clippy::redundant_closure_call,
clippy::redundant_pattern_matching,
clippy::too_many_lines,
clippy::unit_arg,
clippy::while_immutable_condition,
clippy::zero_ptr,
irrefutable_let_patterns
)]
use self::Enum::Generic;
use anyhow::{anyhow, ensure, Chain, Error, Result};
use std::fmt::{self, Debug};
use std::iter;
use std::marker::{PhantomData, PhantomData as P};
use std::mem;
use std::ops::Add;
use std::ptr;
struct S;
impl<T> Add<T> for S {
type Output = bool;
fn add(self, rhs: T) -> Self::Output {
let _ = rhs;
false
}
}
trait Trait: Sized {
const V: usize = 0;
fn t(self, i: i32) -> i32 {
i
}
}
impl<T> Trait for T {}
enum Enum<T: ?Sized> {
#[allow(dead_code)]
Thing(PhantomData<T>),
Generic,
}
impl<T: ?Sized> PartialEq for Enum<T> {
fn eq(&self, rhs: &Self) -> bool {
mem::discriminant(self) == mem::discriminant(rhs)
}
}
impl<T: ?Sized> Debug for Enum<T> {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("Generic")
}
}
#[track_caller]
fn assert_err<T: Debug>(result: impl FnOnce() -> Result<T>, expected: &'static str) {
let actual = result().unwrap_err().to_string();
// In general different rustc versions will format the interpolated lhs and
// rhs $:expr fragment with insignificant differences in whitespace or
// punctuation, so we check the message in full against nightly and do just
// a cursory test on older toolchains.
if rustversion::cfg!(nightly) && !cfg!(miri) {
assert_eq!(actual, expected);
} else {
assert_eq!(actual.contains(" vs "), expected.contains(" vs "));
}
}
#[test]
fn test_recursion() {
// Must not blow the default #[recursion_limit], which is 128.
#[rustfmt::skip]
let test = || Ok(ensure!(
false | false | false | false | false | false | false | false | false |
false | false | false | false | false | false | false | false | false |
false | false | false | false | false | false | false | false | false |
false | false | false | false | false | false | false | false | false |
false | false | false | false | false | false | false | false | false |
false | false | false | false | false | false | false | false | false |
false | false | false | false | false | false | false | false | false
));
test().unwrap_err();
}
#[test]
fn test_low_precedence_control_flow() {
#[allow(unreachable_code)]
let test = || {
let val = loop {
// Break has lower precedence than the comparison operators so the
// expression here is `S + (break (1 == 1))`. It would be bad if the
// ensure macro partitioned this input into `(S + break 1) == (1)`
// because that means a different thing than what was written.
ensure!(S + break 1 == 1);
};
Ok(val)
};
assert!(test().unwrap());
}
#[test]
fn test_low_precedence_binary_operator() {
// Must not partition as `false == (true && false)`.
let test = || Ok(ensure!(false == true && false));
assert_err(test, "Condition failed: `false == true && false`");
// But outside the root level, it is fine.
let test = || Ok(ensure!(while false == true && false {} < ()));
assert_err(
test,
"Condition failed: `while false == true && false {} < ()` (() vs ())",
);
}
#[test]
fn test_closure() {
// Must not partition as `(S + move) || (1 == 1)` by treating move as an
// identifier, nor as `(S + move || 1) == (1)` by misinterpreting the
// closure precedence.
let test = || Ok(ensure!(S + move || 1 == 1));
assert_err(test, "Condition failed: `S + (move || 1 == 1)`");
let test = || Ok(ensure!(S + || 1 == 1));
assert_err(test, "Condition failed: `S + (|| 1 == 1)`");
// Must not partition as `S + ((move | ()) | 1) == 1` by treating those
// pipes as bitwise-or.
let test = || Ok(ensure!(S + move |()| 1 == 1));
assert_err(test, "Condition failed: `S + (move |()| 1 == 1)`");
let test = || Ok(ensure!(S + |()| 1 == 1));
assert_err(test, "Condition failed: `S + (|()| 1 == 1)`");
}
#[test]
fn test_unary() {
let mut x = &1;
let test = || Ok(ensure!(*x == 2));
assert_err(test, "Condition failed: `*x == 2` (1 vs 2)");
let test = || Ok(ensure!(!x == 1));
assert_err(test, "Condition failed: `!x == 1` (-2 vs 1)");
let test = || Ok(ensure!(-x == 1));
assert_err(test, "Condition failed: `-x == 1` (-1 vs 1)");
let test = || Ok(ensure!(&x == &&2));
assert_err(test, "Condition failed: `&x == &&2` (1 vs 2)");
let test = || Ok(ensure!(&mut x == *&&mut &2));
assert_err(test, "Condition failed: `&mut x == *&&mut &2` (1 vs 2)");
}
#[test]
fn test_if() {
#[rustfmt::skip]
let test = || Ok(ensure!(if false {}.t(1) == 2));
assert_err(test, "Condition failed: `if false {}.t(1) == 2` (1 vs 2)");
#[rustfmt::skip]
let test = || Ok(ensure!(if false {} else {}.t(1) == 2));
assert_err(
test,
"Condition failed: `if false {} else {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(if false {} else if false {}.t(1) == 2));
assert_err(
test,
"Condition failed: `if false {} else if false {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(if let 1 = 2 {}.t(1) == 2));
assert_err(
test,
"Condition failed: `if let 1 = 2 {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(if let 1 | 2 = 2 {}.t(1) == 2));
assert_err(
test,
"Condition failed: `if let 1 | 2 = 2 {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(if let | 1 | 2 = 2 {}.t(1) == 2));
assert_err(
test,
"Condition failed: `if let 1 | 2 = 2 {}.t(1) == 2` (1 vs 2)",
);
}
#[test]
fn test_loop() {
#[rustfmt::skip]
let test = || Ok(ensure!(1 + loop { break 1 } == 1));
assert_err(
test,
"Condition failed: `1 + loop { break 1 } == 1` (2 vs 1)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(1 + 'a: loop { break 'a 1 } == 1));
assert_err(
test,
"Condition failed: `1 + 'a: loop { break 'a 1 } == 1` (2 vs 1)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(while false {}.t(1) == 2));
assert_err(
test,
"Condition failed: `while false {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(while let None = Some(1) {}.t(1) == 2));
assert_err(
test,
"Condition failed: `while let None = Some(1) {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(for _x in iter::once(0) {}.t(1) == 2));
assert_err(
test,
"Condition failed: `for _x in iter::once(0) {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(for | _x in iter::once(0) {}.t(1) == 2));
assert_err(
test,
"Condition failed: `for _x in iter::once(0) {}.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(for true | false in iter::empty() {}.t(1) == 2));
assert_err(
test,
"Condition failed: `for true | false in iter::empty() {}.t(1) == 2` (1 vs 2)",
);
}
#[test]
fn test_match() {
#[rustfmt::skip]
let test = || Ok(ensure!(match 1 == 1 { true => 1, false => 0 } == 2));
assert_err(
test,
"Condition failed: `match 1 == 1 { true => 1, false => 0, } == 2` (1 vs 2)",
);
}
#[test]
fn test_atom() {
let test = || Ok(ensure!([false, false].len() > 3));
assert_err(
test,
"Condition failed: `[false, false].len() > 3` (2 vs 3)",
);
#[rustfmt::skip]
let test = || Ok(ensure!({ let x = 1; x } >= 3));
assert_err(test, "Condition failed: `{ let x = 1; x } >= 3` (1 vs 3)");
let test = || Ok(ensure!(S + async { 1 } == true));
assert_err(
test,
"Condition failed: `S + async { 1 } == true` (false vs true)",
);
let test = || Ok(ensure!(S + async move { 1 } == true));
assert_err(
test,
"Condition failed: `S + async move { 1 } == true` (false vs true)",
);
let x = &1;
let test = || Ok(ensure!(S + unsafe { ptr::read(x) } == true));
assert_err(
test,
"Condition failed: `S + unsafe { ptr::read(x) } == true` (false vs true)",
);
}
#[test]
fn test_path() {
let test = || Ok(ensure!(crate::S.t(1) == 2));
assert_err(test, "Condition failed: `crate::S.t(1) == 2` (1 vs 2)");
let test = || Ok(ensure!(::anyhow::Error::root_cause.t(1) == 2));
assert_err(
test,
"Condition failed: `::anyhow::Error::root_cause.t(1) == 2` (1 vs 2)",
);
let test = || Ok(ensure!(Error::msg::<&str>.t(1) == 2));
assert_err(
test,
"Condition failed: `Error::msg::<&str>.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(Error::msg::<&str,>.t(1) == 2));
assert_err(
test,
"Condition failed: `Error::msg::<&str>.t(1) == 2` (1 vs 2)",
);
let test = || Ok(ensure!(Error::msg::<<str as ToOwned>::Owned>.t(1) == 2));
assert_err(
test,
"Condition failed: `Error::msg::<<str as ToOwned>::Owned>.t(1) == 2` (1 vs 2)",
);
let test = || Ok(ensure!(Chain::<'static>::new.t(1) == 2));
assert_err(
test,
"Condition failed: `Chain::<'static>::new.t(1) == 2` (1 vs 2)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(Chain::<'static,>::new.t(1) == 2));
assert_err(
test,
"Condition failed: `Chain::<'static>::new.t(1) == 2` (1 vs 2)",
);
fn f<const I: isize>() {}
let test = || Ok(ensure!(f::<1>() != ()));
assert_err(test, "Condition failed: `f::<1>() != ()` (() vs ())");
let test = || Ok(ensure!(f::<-1>() != ()));
assert_err(test, "Condition failed: `f::<-1>() != ()` (() vs ())");
fn g<T, const I: isize>() {}
let test = || Ok(ensure!(g::<u8, 1>() != ()));
assert_err(test, "Condition failed: `g::<u8, 1>() != ()` (() vs ())");
let test = || Ok(ensure!(g::<u8, -1>() != ()));
assert_err(test, "Condition failed: `g::<u8, -1>() != ()` (() vs ())");
#[derive(PartialOrd, PartialEq, Debug)]
enum E<'a, T> {
#[allow(dead_code)]
T(&'a T),
U,
}
#[rustfmt::skip]
let test = || Ok(ensure!(E::U::<>>E::U::<u8>));
assert_err(test, "Condition failed: `E::U::<> > E::U::<u8>` (U vs U)");
#[rustfmt::skip]
let test = || Ok(ensure!(E::U::<u8>>E::U));
assert_err(test, "Condition failed: `E::U::<u8> > E::U` (U vs U)");
#[rustfmt::skip]
let test = || Ok(ensure!(E::U::<u8,>>E::U));
assert_err(test, "Condition failed: `E::U::<u8> > E::U` (U vs U)");
let test = || Ok(ensure!(Generic::<dyn Debug + Sync> != Generic));
assert_err(
test,
"Condition failed: `Generic::<dyn Debug + Sync> != Generic` (Generic vs Generic)",
);
let test = || Ok(ensure!(Generic::<dyn Fn() + Sync> != Generic));
assert_err(
test,
"Condition failed: `Generic::<dyn Fn() + Sync> != Generic` (Generic vs Generic)",
);
#[rustfmt::skip]
let test = || {
Ok(ensure!(
Generic::<dyn Fn::() + ::std::marker::Sync> != Generic
))
};
assert_err(
test,
"Condition failed: `Generic::<dyn Fn() + ::std::marker::Sync> != Generic` (Generic vs Generic)",
);
}
#[test]
fn test_macro() {
let test = || Ok(ensure!(anyhow!("...").to_string().len() <= 1));
assert_err(
test,
"Condition failed: `anyhow!(\"...\").to_string().len() <= 1` (3 vs 1)",
);
let test = || Ok(ensure!(vec![1].len() < 1));
assert_err(test, "Condition failed: `vec![1].len() < 1` (1 vs 1)");
let test = || Ok(ensure!(stringify! {} != ""));
assert_err(
test,
"Condition failed: `stringify! {} != \"\"` (\"\" vs \"\")",
);
}
#[test]
fn test_trailer() {
let test = || Ok(ensure!((|| 1)() == 2));
assert_err(test, "Condition failed: `(|| 1)() == 2` (1 vs 2)");
let test = || Ok(ensure!(b"hmm"[1] == b'c'));
assert_err(test, "Condition failed: `b\"hmm\"[1] == b'c'` (109 vs 99)");
let test = || Ok(ensure!(PhantomData::<u8> {} != PhantomData));
assert_err(
test,
"Condition failed: `PhantomData::<u8> {} != PhantomData` (PhantomData<u8> vs PhantomData<u8>)",
);
let result = Ok::<_, Error>(1);
let test = || Ok(ensure!(result? == 2));
assert_err(test, "Condition failed: `result? == 2` (1 vs 2)");
let test = || Ok(ensure!((2, 3).1 == 2));
assert_err(test, "Condition failed: `(2, 3).1 == 2` (3 vs 2)");
#[rustfmt::skip]
let test = || Ok(ensure!((2, (3, 4)). 1.1 == 2));
assert_err(test, "Condition failed: `(2, (3, 4)).1.1 == 2` (4 vs 2)");
let err = anyhow!("");
let test = || Ok(ensure!(err.is::<&str>() == false));
assert_err(
test,
"Condition failed: `err.is::<&str>() == false` (true vs false)",
);
let test = || Ok(ensure!(err.is::<<str as ToOwned>::Owned>() == true));
assert_err(
test,
"Condition failed: `err.is::<<str as ToOwned>::Owned>() == true` (false vs true)",
);
}
#[test]
fn test_whitespace() {
#[derive(Debug)]
pub struct Point {
pub x: i32,
pub y: i32,
}
let point = Point { x: 0, y: 0 };
let test = || Ok(ensure!("" == format!("{:#?}", point)));
assert_err(
test,
"Condition failed: `\"\" == format!(\"{:#?}\", point)`",
);
}
#[test]
fn test_too_long() {
let test = || Ok(ensure!("" == "x".repeat(10)));
assert_err(
test,
"Condition failed: `\"\" == \"x\".repeat(10)` (\"\" vs \"xxxxxxxxxx\")",
);
let test = || Ok(ensure!("" == "x".repeat(80)));
assert_err(test, "Condition failed: `\"\" == \"x\".repeat(80)`");
}
#[test]
fn test_as() {
let test = || Ok(ensure!('\0' as u8 > 1));
assert_err(test, "Condition failed: `'\\0' as u8 > 1` (0 vs 1)");
let test = || Ok(ensure!('\0' as ::std::primitive::u8 > 1));
assert_err(
test,
"Condition failed: `'\\0' as ::std::primitive::u8 > 1` (0 vs 1)",
);
let test = || Ok(ensure!(&[0] as &[i32] == [1]));
assert_err(
test,
"Condition failed: `&[0] as &[i32] == [1]` ([0] vs [1])",
);
let test = || Ok(ensure!(0 as *const () as *mut _ == 1 as *mut ()));
assert_err(
test,
"Condition failed: `0 as *const () as *mut _ == 1 as *mut ()` (0x0 vs 0x1)",
);
let s = "";
let test = || Ok(ensure!(s as &str != s));
assert_err(test, "Condition failed: `s as &str != s` (\"\" vs \"\")");
let test = || Ok(ensure!(&s as &&str != &s));
assert_err(test, "Condition failed: `&s as &&str != &s` (\"\" vs \"\")");
let test = || Ok(ensure!(s as &'static str != s));
assert_err(
test,
"Condition failed: `s as &'static str != s` (\"\" vs \"\")",
);
let test = || Ok(ensure!(&s as &&'static str != &s));
assert_err(
test,
"Condition failed: `&s as &&'static str != &s` (\"\" vs \"\")",
);
let m: &mut str = Default::default();
let test = || Ok(ensure!(m as &mut str != s));
assert_err(
test,
"Condition failed: `m as &mut str != s` (\"\" vs \"\")",
);
let test = || Ok(ensure!(&m as &&mut str != &s));
assert_err(
test,
"Condition failed: `&m as &&mut str != &s` (\"\" vs \"\")",
);
let test = || Ok(ensure!(&m as &&'static mut str != &s));
assert_err(
test,
"Condition failed: `&m as &&'static mut str != &s` (\"\" vs \"\")",
);
let f = || {};
let test = || Ok(ensure!(f as fn() as usize * 0 != 0));
assert_err(
test,
"Condition failed: `f as fn() as usize * 0 != 0` (0 vs 0)",
);
let test = || Ok(ensure!(f as fn() -> () as usize * 0 != 0));
assert_err(
test,
"Condition failed: `f as fn() -> () as usize * 0 != 0` (0 vs 0)",
);
let test = || Ok(ensure!(f as for<'a> fn() as usize * 0 != 0));
assert_err(
test,
"Condition failed: `f as for<'a> fn() as usize * 0 != 0` (0 vs 0)",
);
let test = || Ok(ensure!(f as unsafe fn() as usize * 0 != 0));
assert_err(
test,
"Condition failed: `f as unsafe fn() as usize * 0 != 0` (0 vs 0)",
);
#[rustfmt::skip]
let test = || Ok(ensure!(f as extern "Rust" fn() as usize * 0 != 0));
assert_err(
test,
"Condition failed: `f as extern \"Rust\" fn() as usize * 0 != 0` (0 vs 0)",
);
extern "C" fn extern_fn() {}
#[rustfmt::skip]
let test = || Ok(ensure!(extern_fn as extern fn() as usize * 0 != 0));
assert_err(
test,
"Condition failed: `extern_fn as extern fn() as usize * 0 != 0` (0 vs 0)",
);
let f = || -> ! { panic!() };
let test = || Ok(ensure!(f as fn() -> ! as usize * 0 != 0));
assert_err(
test,
"Condition failed: `f as fn() -> ! as usize * 0 != 0` (0 vs 0)",
);
trait EqDebug<T>: PartialEq<T> + Debug {
type Assoc;
}
impl<S, T> EqDebug<T> for S
where
S: PartialEq<T> + Debug,
{
type Assoc = bool;
}
let test = || Ok(ensure!(&0 as &dyn EqDebug<i32, Assoc = bool> != &0));
assert_err(
test,
"Condition failed: `&0 as &dyn EqDebug<i32, Assoc = bool> != &0` (0 vs 0)",
);
let test = || {
Ok(ensure!(
PhantomData as PhantomData<<i32 as ToOwned>::Owned> != PhantomData
))
};
assert_err(
test,
"Condition failed: `PhantomData as PhantomData<<i32 as ToOwned>::Owned> != PhantomData` (PhantomData<i32> vs PhantomData<i32>)",
);
macro_rules! int {
(...) => {
u8
};
}
let test = || Ok(ensure!(0 as int!(...) != 0));
assert_err(test, "Condition failed: `0 as int!(...) != 0` (0 vs 0)");
let test = || Ok(ensure!(0 as int![...] != 0));
assert_err(test, "Condition failed: `0 as int![...] != 0` (0 vs 0)");
let test = || Ok(ensure!(0 as int! {...} != 0));
assert_err(test, "Condition failed: `0 as int! { ... } != 0` (0 vs 0)");
}
#[test]
fn test_pat() {
let test = || Ok(ensure!(if let ref mut _x @ 0 = 0 { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let ref mut _x @ 0 = 0 { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let -1..=1 = 0 { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let -1..=1 = 0 { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let &0 = &0 { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let &0 = &0 { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let &&0 = &&0 { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let &&0 = &&0 { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let &mut 0 = &mut 0 { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let &mut 0 = &mut 0 { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let &&mut 0 = &&mut 0 { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let &&mut 0 = &&mut 0 { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let (0, 1) = (0, 1) { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let (0, 1) = (0, 1) { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let [0] = b"\0" { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let [0] = b\"\\0\" { 0 } else { 1 } == 1` (0 vs 1)",
);
let p = PhantomData::<u8>;
let test = || Ok(ensure!(if let P::<u8> {} = p { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let P::<u8> {} = p { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(if let ::std::marker::PhantomData = p {} != ()));
assert_err(
test,
"Condition failed: `if let ::std::marker::PhantomData = p {} != ()` (() vs ())",
);
let test = || Ok(ensure!(if let <S as Trait>::V = 0 { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let <S as Trait>::V = 0 { 0 } else { 1 } == 1` (0 vs 1)",
);
let test = || Ok(ensure!(for _ in iter::once(()) {} != ()));
assert_err(
test,
"Condition failed: `for _ in iter::once(()) {} != ()` (() vs ())",
);
let test = || Ok(ensure!(if let stringify!(x) = "x" { 0 } else { 1 } == 1));
assert_err(
test,
"Condition failed: `if let stringify!(x) = \"x\" { 0 } else { 1 } == 1` (0 vs 1)",
);
}

18
vendor/anyhow/tests/test_ffi.rs vendored
View file

@ -1,18 +0,0 @@
#![deny(improper_ctypes, improper_ctypes_definitions)]
use anyhow::anyhow;
#[no_mangle]
pub extern "C" fn anyhow1(err: anyhow::Error) {
println!("{:?}", err);
}
#[no_mangle]
pub extern "C" fn anyhow2(err: &mut Option<anyhow::Error>) {
*err = Some(anyhow!("ffi error"));
}
#[no_mangle]
pub extern "C" fn anyhow3() -> Option<anyhow::Error> {
Some(anyhow!("ffi error"))
}

94
vendor/anyhow/tests/test_fmt.rs vendored
View file

@ -1,94 +0,0 @@
use anyhow::{bail, Context, Result};
use std::io;
fn f() -> Result<()> {
bail!(io::Error::new(io::ErrorKind::PermissionDenied, "oh no!"));
}
fn g() -> Result<()> {
f().context("f failed")
}
fn h() -> Result<()> {
g().context("g failed")
}
const EXPECTED_ALTDISPLAY_F: &str = "oh no!";
const EXPECTED_ALTDISPLAY_G: &str = "f failed: oh no!";
const EXPECTED_ALTDISPLAY_H: &str = "g failed: f failed: oh no!";
const EXPECTED_DEBUG_F: &str = "oh no!";
const EXPECTED_DEBUG_G: &str = "\
f failed
Caused by:
oh no!\
";
const EXPECTED_DEBUG_H: &str = "\
g failed
Caused by:
0: f failed
1: oh no!\
";
const EXPECTED_ALTDEBUG_F: &str = "\
Custom {
kind: PermissionDenied,
error: \"oh no!\",
}\
";
const EXPECTED_ALTDEBUG_G: &str = "\
Error {
context: \"f failed\",
source: Custom {
kind: PermissionDenied,
error: \"oh no!\",
},
}\
";
const EXPECTED_ALTDEBUG_H: &str = "\
Error {
context: \"g failed\",
source: Error {
context: \"f failed\",
source: Custom {
kind: PermissionDenied,
error: \"oh no!\",
},
},
}\
";
#[test]
fn test_display() {
assert_eq!("g failed", h().unwrap_err().to_string());
}
#[test]
fn test_altdisplay() {
assert_eq!(EXPECTED_ALTDISPLAY_F, format!("{:#}", f().unwrap_err()));
assert_eq!(EXPECTED_ALTDISPLAY_G, format!("{:#}", g().unwrap_err()));
assert_eq!(EXPECTED_ALTDISPLAY_H, format!("{:#}", h().unwrap_err()));
}
#[test]
#[cfg_attr(not(backtrace), ignore)]
fn test_debug() {
assert_eq!(EXPECTED_DEBUG_F, format!("{:?}", f().unwrap_err()));
assert_eq!(EXPECTED_DEBUG_G, format!("{:?}", g().unwrap_err()));
assert_eq!(EXPECTED_DEBUG_H, format!("{:?}", h().unwrap_err()));
}
#[test]
fn test_altdebug() {
assert_eq!(EXPECTED_ALTDEBUG_F, format!("{:#?}", f().unwrap_err()));
assert_eq!(EXPECTED_ALTDEBUG_G, format!("{:#?}", g().unwrap_err()));
assert_eq!(EXPECTED_ALTDEBUG_H, format!("{:#?}", h().unwrap_err()));
}

80
vendor/anyhow/tests/test_macros.rs vendored
View file

@ -1,80 +0,0 @@
#![allow(
clippy::assertions_on_result_states,
clippy::eq_op,
clippy::items_after_statements,
clippy::needless_pass_by_value,
clippy::shadow_unrelated,
clippy::wildcard_imports
)]
mod common;
use self::common::*;
use anyhow::{anyhow, ensure};
use std::cell::Cell;
use std::future;
#[test]
fn test_messages() {
assert_eq!("oh no!", bail_literal().unwrap_err().to_string());
assert_eq!("oh no!", bail_fmt().unwrap_err().to_string());
assert_eq!("oh no!", bail_error().unwrap_err().to_string());
}
#[test]
fn test_ensure() {
let f = || {
ensure!(1 + 1 == 2, "This is correct");
Ok(())
};
assert!(f().is_ok());
let v = 1;
let f = || {
ensure!(v + v == 2, "This is correct, v: {}", v);
Ok(())
};
assert!(f().is_ok());
let f = || {
ensure!(v + v == 1, "This is not correct, v: {}", v);
Ok(())
};
assert!(f().is_err());
let f = || {
ensure!(v + v == 1);
Ok(())
};
assert_eq!(
f().unwrap_err().to_string(),
"Condition failed: `v + v == 1` (2 vs 1)",
);
}
#[test]
fn test_temporaries() {
fn require_send_sync(_: impl Send + Sync) {}
require_send_sync(async {
// If anyhow hasn't dropped any temporary format_args it creates by the
// time it's done evaluating, those will stick around until the
// semicolon, which is on the other side of the await point, making the
// enclosing future non-Send.
future::ready(anyhow!("...")).await;
});
fn message(cell: Cell<&str>) -> &str {
cell.get()
}
require_send_sync(async {
future::ready(anyhow!(message(Cell::new("...")))).await;
});
}
#[test]
fn test_brace_escape() {
let err = anyhow!("unterminated ${{..}} expression");
assert_eq!("unterminated ${..} expression", err.to_string());
}

29
vendor/anyhow/tests/test_repr.rs vendored
View file

@ -1,29 +0,0 @@
mod drop;
use self::drop::{DetectDrop, Flag};
use anyhow::Error;
use std::marker::Unpin;
use std::mem;
#[test]
fn test_error_size() {
assert_eq!(mem::size_of::<Error>(), mem::size_of::<usize>());
}
#[test]
fn test_null_pointer_optimization() {
assert_eq!(mem::size_of::<Result<(), Error>>(), mem::size_of::<usize>());
}
#[test]
fn test_autotraits() {
fn assert<E: Unpin + Send + Sync + 'static>() {}
assert::<Error>();
}
#[test]
fn test_drop() {
let has_dropped = Flag::new();
drop(Error::new(DetectDrop::new(&has_dropped)));
assert!(has_dropped.get());
}

62
vendor/anyhow/tests/test_source.rs vendored
View file

@ -1,62 +0,0 @@
use anyhow::anyhow;
use std::error::Error as StdError;
use std::fmt::{self, Display};
use std::io;
#[derive(Debug)]
enum TestError {
Io(io::Error),
}
impl Display for TestError {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
match self {
TestError::Io(e) => Display::fmt(e, formatter),
}
}
}
impl StdError for TestError {
fn source(&self) -> Option<&(dyn StdError + 'static)> {
match self {
TestError::Io(io) => Some(io),
}
}
}
#[test]
fn test_literal_source() {
let error = anyhow!("oh no!");
assert!(error.source().is_none());
}
#[test]
fn test_variable_source() {
let msg = "oh no!";
let error = anyhow!(msg);
assert!(error.source().is_none());
let msg = msg.to_owned();
let error = anyhow!(msg);
assert!(error.source().is_none());
}
#[test]
fn test_fmt_source() {
let error = anyhow!("{} {}!", "oh", "no");
assert!(error.source().is_none());
}
#[test]
fn test_io_source() {
let io = io::Error::new(io::ErrorKind::Other, "oh no!");
let error = anyhow!(TestError::Io(io));
assert_eq!("oh no!", error.source().unwrap().to_string());
}
#[test]
fn test_anyhow_from_anyhow() {
let error = anyhow!("oh no!").context("context");
let error = anyhow!(error);
assert_eq!("oh no!", error.source().unwrap().to_string());
}

8
vendor/anyhow/tests/ui/chained-comparison.rs vendored
View file

@ -1,8 +0,0 @@
use anyhow::{ensure, Result};
fn main() -> Result<()> {
// `ensure!` must not partition this into `(false) == (false == true)`
// because Rust doesn't ordinarily allow this form of expression.
ensure!(false == false == true);
Ok(())
}

10
vendor/anyhow/tests/ui/chained-comparison.stderr vendored
View file

@ -1,10 +0,0 @@
error: comparison operators cannot be chained
--> tests/ui/chained-comparison.rs:6:19
|
6 | ensure!(false == false == true);
| ^^ ^^
|
help: split the comparison into two
|
6 | ensure!(false == false && false == true);
| ++++++++

6
vendor/anyhow/tests/ui/empty-ensure.rs vendored
View file

@ -1,6 +0,0 @@
use anyhow::{ensure, Result};
fn main() -> Result<()> {
ensure!();
Ok(())
}

12
vendor/anyhow/tests/ui/empty-ensure.stderr vendored
View file

@ -1,12 +0,0 @@
error: unexpected end of macro invocation
--> tests/ui/empty-ensure.rs:4:5
|
4 | ensure!();
| ^^^^^^^^^ missing tokens in macro arguments
|
note: while trying to match meta-variable `$cond:expr`
--> src/ensure.rs
|
| ($cond:expr $(,)?) => {
| ^^^^^^^^^^
= note: this error originates in the macro `$crate::__parse_ensure` which comes from the expansion of the macro `ensure` (in Nightly builds, run with -Z macro-backtrace for more info)

11
vendor/anyhow/tests/ui/must-use.rs vendored
View file

@ -1,11 +0,0 @@
#![deny(unused_must_use)]
use anyhow::anyhow;
fn main() -> anyhow::Result<()> {
if true {
// meant to write bail!
anyhow!("it failed");
}
Ok(())
}

12
vendor/anyhow/tests/ui/must-use.stderr vendored
View file

@ -1,12 +0,0 @@
error: unused return value of `anyhow::__private::must_use` that must be used
--> tests/ui/must-use.rs:8:9
|
8 | anyhow!("it failed");
| ^^^^^^^^^^^^^^^^^^^^
|
note: the lint level is defined here
--> tests/ui/must-use.rs:1:9
|
1 | #![deny(unused_must_use)]
| ^^^^^^^^^^^^^^^
= note: this error originates in the macro `anyhow` (in Nightly builds, run with -Z macro-backtrace for more info)

8
vendor/anyhow/tests/ui/no-impl.rs vendored
View file

@ -1,8 +0,0 @@
use anyhow::anyhow;
#[derive(Debug)]
struct Error;
fn main() {
let _ = anyhow!(Error);
}

31
vendor/anyhow/tests/ui/no-impl.stderr vendored
View file

@ -1,31 +0,0 @@
error[E0599]: the method `anyhow_kind` exists for reference `&Error`, but its trait bounds were not satisfied
--> tests/ui/no-impl.rs:7:13
|
4 | struct Error;
| ------------
| |
| doesn't satisfy `Error: Into<anyhow::Error>`
| doesn't satisfy `Error: anyhow::kind::TraitKind`
| doesn't satisfy `Error: std::fmt::Display`
...
7 | let _ = anyhow!(Error);
| ^^^^^^^^^^^^^^ method cannot be called on `&Error` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`Error: Into<anyhow::Error>`
which is required by `Error: anyhow::kind::TraitKind`
`Error: std::fmt::Display`
which is required by `&Error: anyhow::kind::AdhocKind`
`&Error: Into<anyhow::Error>`
which is required by `&Error: anyhow::kind::TraitKind`
note: the traits `Into` and `std::fmt::Display` must be implemented
--> $RUST/core/src/fmt/mod.rs
|
| pub trait Display {
| ^^^^^^^^^^^^^^^^^
|
::: $RUST/core/src/convert/mod.rs
|
| pub trait Into<T>: Sized {
| ^^^^^^^^^^^^^^^^^^^^^^^^
= note: this error originates in the macro `anyhow` (in Nightly builds, run with -Z macro-backtrace for more info)

5
vendor/anyhow/tests/ui/temporary-value.rs vendored
View file

@ -1,5 +0,0 @@
use anyhow::anyhow;
fn main() {
let _ = anyhow!(&String::new());
}

9
vendor/anyhow/tests/ui/temporary-value.stderr vendored
View file

@ -1,9 +0,0 @@
error[E0716]: temporary value dropped while borrowed
--> tests/ui/temporary-value.rs:4:22
|
4 | let _ = anyhow!(&String::new());
| ---------^^^^^^^^^^^^^-
| | |
| | creates a temporary value which is freed while still in use
| temporary value is freed at the end of this statement
| argument requires that borrow lasts for `'static`

5
vendor/anyhow/tests/ui/wrong-interpolation.rs vendored
View file

@ -1,5 +0,0 @@
use anyhow::{bail, Result};
fn main() -> Result<()> {
bail!("{} not found");
}

5
vendor/anyhow/tests/ui/wrong-interpolation.stderr vendored
View file

@ -1,5 +0,0 @@
error: 1 positional argument in format string, but no arguments were given
--> tests/ui/wrong-interpolation.rs:4:12
|
4 | bail!("{} not found");
| ^^

1
vendor/assert_matches/.cargo-checksum.json vendored
View file

@ -1 +0,0 @@
{"files":{"Cargo.toml":"b1d82ebc78954ce92609406894d97eecde6c95a3969431b2d9a0d35406585366","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"d4c1ce21c702ac8f22b5d23dedc46c21ceb3d42918ed1f631685a722249c71ba","README.md":"ffcb705cf4ff8bc5b29d1938a26f6ac6249663dc9acca0830c7ff0415ab414ed","src/lib.rs":"0f4e68d02d6c1629e0270e223e0275e838c9c84f5cedefca4528e57b7ceac2f7","tests/selective_import1.rs":"43251b8501cb27f8063f5f190ec882dbe0127b9cb993d7bbc5cb4623eecf13d6","tests/selective_import2.rs":"b574c71458e6b0ec0631b8a945efae23f274097828dcc547ed83df540c599aac"},"package":"9b34d609dfbaf33d6889b2b7106d3ca345eacad44200913df5ba02bfd31d2ba9"}

24
vendor/assert_matches/Cargo.toml vendored
View file

@ -1,24 +0,0 @@
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
[package]
name = "assert_matches"
version = "1.5.0"
authors = ["Murarth <murarth@gmail.com>"]
description = "Asserts that a value matches a pattern"
homepage = "https://github.com/murarth/assert_matches"
documentation = "https://docs.rs/assert_matches/"
readme = "README.md"
keywords = ["assert", "match", "pattern"]
categories = ["no-std"]
license = "MIT/Apache-2.0"
repository = "https://github.com/murarth/assert_matches"

201
vendor/assert_matches/LICENSE-APACHE vendored
View file

@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

25
vendor/assert_matches/LICENSE-MIT vendored
View file

@ -1,25 +0,0 @@
Copyright (c) 2016 Murarth
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

44
vendor/assert_matches/README.md vendored
View file

@ -1,44 +0,0 @@
# assert_matches
Provides a macro, `assert_matches`, which tests whether a value
matches a given pattern, causing a panic if the match fails.
[Documentation](https://docs.rs/assert_matches/)
```rust
#[macro_use] extern crate assert_matches;
#[derive(Debug)]
enum Foo {
A(i32),
B(i32),
}
let a = Foo::A(1);
assert_matches!(a, Foo::A(_));
assert_matches!(a, Foo::A(i) if i > 0);
```
To include in your project, only when tests are compiled, add the following
to your Cargo.toml:
```toml
[dev-dependencies]
assert_matches = "1.5"
```
And add the following to your crate root:
```rust
#[cfg(test)] #[macro_use]
extern crate assert_matches;
```
## License
`assert_matches` is distributed under the terms of both the MIT license and the
Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT for details.

324
vendor/assert_matches/src/lib.rs vendored
View file

@ -1,324 +0,0 @@
//! Provides a macro, `assert_matches!`, which tests whether a value
//! matches a given pattern, causing a panic if the match fails.
//!
//! See the macro [`assert_matches!`] documentation for more information.
//!
//! Also provides a debug-only counterpart, [`debug_assert_matches!`].
//!
//! See the macro [`debug_assert_matches!`] documentation for more information
//! about this macro.
//!
//! [`assert_matches!`]: macro.assert_matches.html
//! [`debug_assert_matches!`]: macro.debug_assert_matches.html
#![deny(missing_docs)]
#![cfg_attr(not(test), no_std)]
/// Asserts that an expression matches a given pattern.
///
/// A guard expression may be supplied to add further restrictions to the
/// expected value of the expression.
///
/// A `match` arm may be supplied to perform additional assertions or to yield
/// a value from the macro invocation.
///
/// # Examples
///
/// ```
/// #[macro_use] extern crate assert_matches;
///
/// #[derive(Debug)]
/// enum Foo {
/// A(i32),
/// B(&'static str),
/// }
///
/// # fn main() {
/// let a = Foo::A(1);
///
/// // Assert that `a` matches the pattern `Foo::A(_)`.
/// assert_matches!(a, Foo::A(_));
///
/// // Assert that `a` matches the pattern and
/// // that the contained value meets the condition `i > 0`.
/// assert_matches!(a, Foo::A(i) if i > 0);
///
/// let b = Foo::B("foobar");
///
/// // Assert that `b` matches the pattern `Foo::B(_)`.
/// assert_matches!(b, Foo::B(s) => {
/// // Perform additional assertions on the variable binding `s`.
/// assert!(s.starts_with("foo"));
/// assert!(s.ends_with("bar"));
/// });
///
/// // Assert that `b` matches the pattern and yield the string `s`.
/// let s = assert_matches!(b, Foo::B(s) => s);
///
/// // Perform an assertion on the value `s`.
/// assert_eq!(s, "foobar");
/// # }
/// ```
#[macro_export]
macro_rules! assert_matches {
( $e:expr , $($pat:pat)|+ ) => {
match $e {
$($pat)|+ => (),
ref e => panic!("assertion failed: `{:?}` does not match `{}`",
e, stringify!($($pat)|+))
}
};
( $e:expr , $($pat:pat)|+ if $cond:expr ) => {
match $e {
$($pat)|+ if $cond => (),
ref e => panic!("assertion failed: `{:?}` does not match `{}`",
e, stringify!($($pat)|+ if $cond))
}
};
( $e:expr , $($pat:pat)|+ => $arm:expr ) => {
match $e {
$($pat)|+ => $arm,
ref e => panic!("assertion failed: `{:?}` does not match `{}`",
e, stringify!($($pat)|+))
}
};
( $e:expr , $($pat:pat)|+ if $cond:expr => $arm:expr ) => {
match $e {
$($pat)|+ if $cond => $arm,
ref e => panic!("assertion failed: `{:?}` does not match `{}`",
e, stringify!($($pat)|+ if $cond))
}
};
( $e:expr , $($pat:pat)|+ , $($arg:tt)* ) => {
match $e {
$($pat)|+ => (),
ref e => panic!("assertion failed: `{:?}` does not match `{}`: {}",
e, stringify!($($pat)|+), format_args!($($arg)*))
}
};
( $e:expr , $($pat:pat)|+ if $cond:expr , $($arg:tt)* ) => {
match $e {
$($pat)|+ if $cond => (),
ref e => panic!("assertion failed: `{:?}` does not match `{}`: {}",
e, stringify!($($pat)|+ if $cond), format_args!($($arg)*))
}
};
( $e:expr , $($pat:pat)|+ => $arm:expr , $($arg:tt)* ) => {
match $e {
$($pat)|+ => $arm,
ref e => panic!("assertion failed: `{:?}` does not match `{}`: {}",
e, stringify!($($pat)|+), format_args!($($arg)*))
}
};
( $e:expr , $($pat:pat)|+ if $cond:expr => $arm:expr , $($arg:tt)* ) => {
match $e {
$($pat)|+ if $cond => $arm,
ref e => panic!("assertion failed: `{:?}` does not match `{}`: {}",
e, stringify!($($pat)|+ if $cond), format_args!($($arg)*))
}
};
}
/// Asserts that an expression matches a given pattern.
///
/// Unlike [`assert_matches!`], `debug_assert_matches!` statements are only enabled
/// in non-optimized builds by default. An optimized build will omit all
/// `debug_assert_matches!` statements unless `-C debug-assertions` is passed
/// to the compiler.
///
/// See the macro [`assert_matches!`] documentation for more information.
///
/// [`assert_matches!`]: macro.assert_matches.html
#[macro_export(local_inner_macros)]
macro_rules! debug_assert_matches {
( $($tt:tt)* ) => { {
if _assert_matches_cfg!(debug_assertions) {
assert_matches!($($tt)*);
}
} }
}
#[doc(hidden)]
#[macro_export]
macro_rules! _assert_matches_cfg {
( $($tt:tt)* ) => { cfg!($($tt)*) }
}
#[cfg(test)]
mod test {
use std::panic::{catch_unwind, UnwindSafe};
#[derive(Debug)]
enum Foo {
A(i32),
B(&'static str),
C(&'static str),
}
#[test]
fn test_assert_succeed() {
let a = Foo::A(123);
assert_matches!(a, Foo::A(_));
assert_matches!(a, Foo::A(123));
assert_matches!(a, Foo::A(i) if i == 123);
assert_matches!(a, Foo::A(42) | Foo::A(123));
let b = Foo::B("foo");
assert_matches!(b, Foo::B(_));
assert_matches!(b, Foo::B("foo"));
assert_matches!(b, Foo::B(s) if s == "foo");
assert_matches!(b, Foo::B(s) => assert_eq!(s, "foo"));
assert_matches!(b, Foo::B(s) => { assert_eq!(s, "foo"); assert!(true) });
assert_matches!(b, Foo::B(s) if s == "foo" => assert_eq!(s, "foo"));
assert_matches!(b, Foo::B(s) if s == "foo" => { assert_eq!(s, "foo"); assert!(true) });
let c = Foo::C("foo");
assert_matches!(c, Foo::B(_) | Foo::C(_));
assert_matches!(c, Foo::B("foo") | Foo::C("foo"));
assert_matches!(c, Foo::B(s) | Foo::C(s) if s == "foo");
assert_matches!(c, Foo::B(s) | Foo::C(s) => assert_eq!(s, "foo"));
assert_matches!(c, Foo::B(s) | Foo::C(s) => { assert_eq!(s, "foo"); assert!(true) });
assert_matches!(c, Foo::B(s) | Foo::C(s) if s == "foo" => assert_eq!(s, "foo"));
assert_matches!(c, Foo::B(s) | Foo::C(s) if s == "foo" => { assert_eq!(s, "foo"); assert!(true) });
}
#[test]
#[should_panic]
fn test_assert_panic_0() {
let a = Foo::A(123);
assert_matches!(a, Foo::B(_));
}
#[test]
#[should_panic]
fn test_assert_panic_1() {
let b = Foo::B("foo");
assert_matches!(b, Foo::B("bar"));
}
#[test]
#[should_panic]
fn test_assert_panic_2() {
let b = Foo::B("foo");
assert_matches!(b, Foo::B(s) if s == "bar");
}
#[test]
#[should_panic]
fn test_assert_panic_3() {
let b = Foo::B("foo");
assert_matches!(b, Foo::B(s) => assert_eq!(s, "bar"));
}
#[test]
#[should_panic]
fn test_assert_panic_4() {
let b = Foo::B("foo");
assert_matches!(b, Foo::B(s) if s == "bar" => assert_eq!(s, "foo"));
}
#[test]
#[should_panic]
fn test_assert_panic_5() {
let b = Foo::B("foo");
assert_matches!(b, Foo::B(s) if s == "foo" => assert_eq!(s, "bar"));
}
#[test]
#[should_panic]
fn test_assert_panic_6() {
let b = Foo::B("foo");
assert_matches!(b, Foo::B(s) if s == "foo" => { assert_eq!(s, "foo"); assert!(false) });
}
#[test]
fn test_assert_no_move() {
let b = &mut Foo::A(0);
assert_matches!(*b, Foo::A(0));
}
#[test]
fn assert_with_message() {
let a = Foo::A(0);
assert_matches!(a, Foo::A(_), "o noes");
assert_matches!(a, Foo::A(n) if n == 0, "o noes");
assert_matches!(a, Foo::A(n) => assert_eq!(n, 0), "o noes");
assert_matches!(a, Foo::A(n) => { assert_eq!(n, 0); assert!(n < 1) }, "o noes");
assert_matches!(a, Foo::A(n) if n == 0 => assert_eq!(n, 0), "o noes");
assert_matches!(a, Foo::A(n) if n == 0 => { assert_eq!(n, 0); assert!(n < 1) }, "o noes");
assert_matches!(a, Foo::A(_), "o noes {:?}", a);
assert_matches!(a, Foo::A(n) if n == 0, "o noes {:?}", a);
assert_matches!(a, Foo::A(n) => assert_eq!(n, 0), "o noes {:?}", a);
assert_matches!(a, Foo::A(n) => { assert_eq!(n, 0); assert!(n < 1) }, "o noes {:?}", a);
assert_matches!(a, Foo::A(_), "o noes {value:?}", value=a);
assert_matches!(a, Foo::A(n) if n == 0, "o noes {value:?}", value=a);
assert_matches!(a, Foo::A(n) => assert_eq!(n, 0), "o noes {value:?}", value=a);
assert_matches!(a, Foo::A(n) => { assert_eq!(n, 0); assert!(n < 1) }, "o noes {value:?}", value=a);
assert_matches!(a, Foo::A(n) if n == 0 => assert_eq!(n, 0), "o noes {value:?}", value=a);
}
fn panic_message<F>(f: F) -> String
where F: FnOnce() + UnwindSafe {
let err = catch_unwind(f)
.expect_err("function did not panic");
*err.downcast::<String>()
.expect("function panicked with non-String value")
}
#[test]
fn test_panic_message() {
let a = Foo::A(1);
// expr, pat
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(_));
}), r#"assertion failed: `A(1)` does not match `Foo::B(_)`"#);
// expr, pat if cond
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(s) if s == "foo");
}), r#"assertion failed: `A(1)` does not match `Foo::B(s) if s == "foo"`"#);
// expr, pat => arm
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(_) => {});
}), r#"assertion failed: `A(1)` does not match `Foo::B(_)`"#);
// expr, pat if cond => arm
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(s) if s == "foo" => {});
}), r#"assertion failed: `A(1)` does not match `Foo::B(s) if s == "foo"`"#);
// expr, pat, args
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(_), "msg");
}), r#"assertion failed: `A(1)` does not match `Foo::B(_)`: msg"#);
// expr, pat if cond, args
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(s) if s == "foo", "msg");
}), r#"assertion failed: `A(1)` does not match `Foo::B(s) if s == "foo"`: msg"#);
// expr, pat => arm, args
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(_) => {}, "msg");
}), r#"assertion failed: `A(1)` does not match `Foo::B(_)`: msg"#);
// expr, pat if cond => arm, args
assert_eq!(panic_message(|| {
assert_matches!(a, Foo::B(s) if s == "foo" => {}, "msg");
}), r#"assertion failed: `A(1)` does not match `Foo::B(s) if s == "foo"`: msg"#);
}
}

9
vendor/assert_matches/tests/selective_import1.rs vendored
View file

@ -1,9 +0,0 @@
#[macro_use(assert_matches)]
extern crate assert_matches;
#[test]
fn test_assert_succeed() {
let a = 42u32;
assert_matches!(a, 42);
}

9
vendor/assert_matches/tests/selective_import2.rs vendored
View file

@ -1,9 +0,0 @@
#[macro_use(debug_assert_matches)]
extern crate assert_matches;
#[test]
fn test_assert_succeed() {
let a = 42u32;
debug_assert_matches!(a, 42);
}

1
vendor/autocfg/.cargo-checksum.json vendored
View file

@ -1 +0,0 @@
{"files":{"Cargo.lock":"3d91565ed13de572a9ebde408a0c98e33f931d6ab52f212b0830a60b4ab26b77","Cargo.toml":"39f627122dceaad42146634719fde802fca3baa1b3908753af723074ae2a6d69","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"27995d58ad5c1145c1a8cd86244ce844886958a35eb2b78c6b772748669999ac","README.md":"4c8f9b5016f2a0c3dbeca5bc41241f57db5568f803e58c1fa480ae2b3638d0a9","examples/integers.rs":"589ff4271566dfa322becddf3e2c7b592e6e0bc97b02892ce75619b7e452e930","examples/paths.rs":"1b30e466b824ce8df7ad0a55334424131d9d2573d6cf9f7d5d50c09c8901d526","examples/traits.rs":"cbee6a3e1f7db60b02ae25b714926517144a77cb492021f492774cf0e1865a9e","examples/versions.rs":"38535e6d9f5bfae0de474a3db79a40e8f5da8ba9334c5ff4c363de9bc99d4d12","src/error.rs":"12de7dafea4a35d1dc2f0fa79bfa038386bbbea72bf083979f4ddf227999eeda","src/lib.rs":"6fa01458e8f9258d84f83ead24fdb0cdf9aec10838b0262f1dfbdf79c530c537","src/tests.rs":"f0e6dc1ad9223c0336c02e215ea3940acb2af6c3bc8fd791e16cd4e786e6a608","src/version.rs":"175727d5f02f2fe2271ddc9b041db2a5b9c6fe0f95afd17c73a4d982612764a3","tests/rustflags.rs":"5c8169b88216055019db61b5d7baf4abdf675e3b14b54f5037bb1e3acd0a5d3f"},"package":"d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"}

7
vendor/autocfg/Cargo.lock generated vendored
View file

@ -1,7 +0,0 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "autocfg"
version = "1.1.0"

24
vendor/autocfg/Cargo.toml vendored
View file

@ -1,24 +0,0 @@
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
name = "autocfg"
version = "1.1.0"
authors = ["Josh Stone <cuviper@gmail.com>"]
exclude = ["/.github/**", "/bors.toml"]
description = "Automatic cfg for Rust compiler features"
readme = "README.md"
keywords = ["rustc", "build", "autoconf"]
categories = ["development-tools::build-utils"]
license = "Apache-2.0 OR MIT"
repository = "https://github.com/cuviper/autocfg"
[dependencies]

201
vendor/autocfg/LICENSE-APACHE vendored
View file

@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

25
vendor/autocfg/LICENSE-MIT vendored
View file

@ -1,25 +0,0 @@
Copyright (c) 2018 Josh Stone
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

95
vendor/autocfg/README.md vendored
View file

@ -1,95 +0,0 @@
autocfg
=======
[![autocfg crate](https://img.shields.io/crates/v/autocfg.svg)](https://crates.io/crates/autocfg)
[![autocfg documentation](https://docs.rs/autocfg/badge.svg)](https://docs.rs/autocfg)
![minimum rustc 1.0](https://img.shields.io/badge/rustc-1.0+-red.svg)
![build status](https://github.com/cuviper/autocfg/workflows/master/badge.svg)
A Rust library for build scripts to automatically configure code based on
compiler support. Code snippets are dynamically tested to see if the `rustc`
will accept them, rather than hard-coding specific version support.
## Usage
Add this to your `Cargo.toml`:
```toml
[build-dependencies]
autocfg = "1"
```
Then use it in your `build.rs` script to detect compiler features. For
example, to test for 128-bit integer support, it might look like:
```rust
extern crate autocfg;
fn main() {
let ac = autocfg::new();
ac.emit_has_type("i128");
// (optional) We don't need to rerun for anything external.
autocfg::rerun_path("build.rs");
}
```
If the type test succeeds, this will write a `cargo:rustc-cfg=has_i128` line
for Cargo, which translates to Rust arguments `--cfg has_i128`. Then in the
rest of your Rust code, you can add `#[cfg(has_i128)]` conditions on code that
should only be used when the compiler supports it.
## Release Notes
- 1.1.0 (2022-02-07)
- Use `CARGO_ENCODED_RUSTFLAGS` when it is set.
- 1.0.1 (2020-08-20)
- Apply `RUSTFLAGS` for more `--target` scenarios, by @adamreichold.
- 1.0.0 (2020-01-08)
- 🎉 Release 1.0! 🎉 (no breaking changes)
- Add `probe_expression` and `emit_expression_cfg` to test arbitrary expressions.
- Add `probe_constant` and `emit_constant_cfg` to test arbitrary constant expressions.
- 0.1.7 (2019-10-20)
- Apply `RUSTFLAGS` when probing `$TARGET != $HOST`, mainly for sysroot, by @roblabla.
- 0.1.6 (2019-08-19)
- Add `probe`/`emit_sysroot_crate`, by @leo60228.
- 0.1.5 (2019-07-16)
- Mask some warnings from newer rustc.
- 0.1.4 (2019-05-22)
- Relax `std`/`no_std` probing to a warning instead of an error.
- Improve `rustc` bootstrap compatibility.
- 0.1.3 (2019-05-21)
- Auto-detects if `#![no_std]` is needed for the `$TARGET`.
- 0.1.2 (2019-01-16)
- Add `rerun_env(ENV)` to print `cargo:rerun-if-env-changed=ENV`.
- Add `rerun_path(PATH)` to print `cargo:rerun-if-changed=PATH`.
## Minimum Rust version policy
This crate's minimum supported `rustc` version is `1.0.0`. Compatibility is
its entire reason for existence, so this crate will be extremely conservative
about raising this requirement. If this is ever deemed necessary, it will be
treated as a major breaking change for semver purposes.
## License
This project is licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or
http://opensource.org/licenses/MIT)
at your option.

9
vendor/autocfg/examples/integers.rs vendored
View file

@ -1,9 +0,0 @@
extern crate autocfg;
fn main() {
// Normally, cargo will set `OUT_DIR` for build scripts.
let ac = autocfg::AutoCfg::with_dir("target").unwrap();
for i in 3..8 {
ac.emit_has_type(&format!("i{}", 1 << i));
}
}

22
vendor/autocfg/examples/paths.rs vendored
View file

@ -1,22 +0,0 @@
extern crate autocfg;
fn main() {
// Normally, cargo will set `OUT_DIR` for build scripts.
let ac = autocfg::AutoCfg::with_dir("target").unwrap();
// since ancient times...
ac.emit_has_path("std::vec::Vec");
ac.emit_path_cfg("std::vec::Vec", "has_vec");
// rustc 1.10.0
ac.emit_has_path("std::panic::PanicInfo");
ac.emit_path_cfg("std::panic::PanicInfo", "has_panic_info");
// rustc 1.20.0
ac.emit_has_path("std::mem::ManuallyDrop");
ac.emit_path_cfg("std::mem::ManuallyDrop", "has_manually_drop");
// rustc 1.25.0
ac.emit_has_path("std::ptr::NonNull");
ac.emit_path_cfg("std::ptr::NonNull", "has_non_null");
}

26
vendor/autocfg/examples/traits.rs vendored
View file

@ -1,26 +0,0 @@
extern crate autocfg;
fn main() {
// Normally, cargo will set `OUT_DIR` for build scripts.
let ac = autocfg::AutoCfg::with_dir("target").unwrap();
// since ancient times...
ac.emit_has_trait("std::ops::Add");
ac.emit_trait_cfg("std::ops::Add", "has_ops");
// trait parameters have to be provided
ac.emit_has_trait("std::borrow::Borrow<str>");
ac.emit_trait_cfg("std::borrow::Borrow<str>", "has_borrow");
// rustc 1.8.0
ac.emit_has_trait("std::ops::AddAssign");
ac.emit_trait_cfg("std::ops::AddAssign", "has_assign_ops");
// rustc 1.12.0
ac.emit_has_trait("std::iter::Sum");
ac.emit_trait_cfg("std::iter::Sum", "has_sum");
// rustc 1.28.0
ac.emit_has_trait("std::alloc::GlobalAlloc");
ac.emit_trait_cfg("std::alloc::GlobalAlloc", "has_global_alloc");
}

9
vendor/autocfg/examples/versions.rs vendored
View file

@ -1,9 +0,0 @@
extern crate autocfg;
fn main() {
// Normally, cargo will set `OUT_DIR` for build scripts.
let ac = autocfg::AutoCfg::with_dir("target").unwrap();
for i in 0..100 {
ac.emit_rustc_version(1, i);
}
}

69
vendor/autocfg/src/error.rs vendored
View file

@ -1,69 +0,0 @@
use std::error;
use std::fmt;
use std::io;
use std::num;
use std::str;
/// A common error type for the `autocfg` crate.
#[derive(Debug)]
pub struct Error {
kind: ErrorKind,
}
impl error::Error for Error {
fn description(&self) -> &str {
"AutoCfg error"
}
fn cause(&self) -> Option<&error::Error> {
match self.kind {
ErrorKind::Io(ref e) => Some(e),
ErrorKind::Num(ref e) => Some(e),
ErrorKind::Utf8(ref e) => Some(e),
ErrorKind::Other(_) => None,
}
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
match self.kind {
ErrorKind::Io(ref e) => e.fmt(f),
ErrorKind::Num(ref e) => e.fmt(f),
ErrorKind::Utf8(ref e) => e.fmt(f),
ErrorKind::Other(s) => s.fmt(f),
}
}
}
#[derive(Debug)]
enum ErrorKind {
Io(io::Error),
Num(num::ParseIntError),
Utf8(str::Utf8Error),
Other(&'static str),
}
pub fn from_io(e: io::Error) -> Error {
Error {
kind: ErrorKind::Io(e),
}
}
pub fn from_num(e: num::ParseIntError) -> Error {
Error {
kind: ErrorKind::Num(e),
}
}
pub fn from_utf8(e: str::Utf8Error) -> Error {
Error {
kind: ErrorKind::Utf8(e),
}
}
pub fn from_str(s: &'static str) -> Error {
Error {
kind: ErrorKind::Other(s),
}
}

453
vendor/autocfg/src/lib.rs vendored
View file

@ -1,453 +0,0 @@
//! A Rust library for build scripts to automatically configure code based on
//! compiler support. Code snippets are dynamically tested to see if the `rustc`
//! will accept them, rather than hard-coding specific version support.
//!
//!
//! ## Usage
//!
//! Add this to your `Cargo.toml`:
//!
//! ```toml
//! [build-dependencies]
//! autocfg = "1"
//! ```
//!
//! Then use it in your `build.rs` script to detect compiler features. For
//! example, to test for 128-bit integer support, it might look like:
//!
//! ```rust
//! extern crate autocfg;
//!
//! fn main() {
//! # // Normally, cargo will set `OUT_DIR` for build scripts.
//! # std::env::set_var("OUT_DIR", "target");
//! let ac = autocfg::new();
//! ac.emit_has_type("i128");
//!
//! // (optional) We don't need to rerun for anything external.
//! autocfg::rerun_path("build.rs");
//! }
//! ```
//!
//! If the type test succeeds, this will write a `cargo:rustc-cfg=has_i128` line
//! for Cargo, which translates to Rust arguments `--cfg has_i128`. Then in the
//! rest of your Rust code, you can add `#[cfg(has_i128)]` conditions on code that
//! should only be used when the compiler supports it.
//!
//! ## Caution
//!
//! Many of the probing methods of `AutoCfg` document the particular template they
//! use, **subject to change**. The inputs are not validated to make sure they are
//! semantically correct for their expected use, so it's _possible_ to escape and
//! inject something unintended. However, such abuse is unsupported and will not
//! be considered when making changes to the templates.
#![deny(missing_debug_implementations)]
#![deny(missing_docs)]
// allow future warnings that can't be fixed while keeping 1.0 compatibility
#![allow(unknown_lints)]
#![allow(bare_trait_objects)]
#![allow(ellipsis_inclusive_range_patterns)]
/// Local macro to avoid `std::try!`, deprecated in Rust 1.39.
macro_rules! try {
($result:expr) => {
match $result {
Ok(value) => value,
Err(error) => return Err(error),
}
};
}
use std::env;
use std::ffi::OsString;
use std::fs;
use std::io::{stderr, Write};
use std::path::{Path, PathBuf};
use std::process::{Command, Stdio};
#[allow(deprecated)]
use std::sync::atomic::ATOMIC_USIZE_INIT;
use std::sync::atomic::{AtomicUsize, Ordering};
mod error;
pub use error::Error;
mod version;
use version::Version;
#[cfg(test)]
mod tests;
/// Helper to detect compiler features for `cfg` output in build scripts.
#[derive(Clone, Debug)]
pub struct AutoCfg {
out_dir: PathBuf,
rustc: PathBuf,
rustc_version: Version,
target: Option<OsString>,
no_std: bool,
rustflags: Vec<String>,
}
/// Writes a config flag for rustc on standard out.
///
/// This looks like: `cargo:rustc-cfg=CFG`
///
/// Cargo will use this in arguments to rustc, like `--cfg CFG`.
pub fn emit(cfg: &str) {
println!("cargo:rustc-cfg={}", cfg);
}
/// Writes a line telling Cargo to rerun the build script if `path` changes.
///
/// This looks like: `cargo:rerun-if-changed=PATH`
///
/// This requires at least cargo 0.7.0, corresponding to rustc 1.6.0. Earlier
/// versions of cargo will simply ignore the directive.
pub fn rerun_path(path: &str) {
println!("cargo:rerun-if-changed={}", path);
}
/// Writes a line telling Cargo to rerun the build script if the environment
/// variable `var` changes.
///
/// This looks like: `cargo:rerun-if-env-changed=VAR`
///
/// This requires at least cargo 0.21.0, corresponding to rustc 1.20.0. Earlier
/// versions of cargo will simply ignore the directive.
pub fn rerun_env(var: &str) {
println!("cargo:rerun-if-env-changed={}", var);
}
/// Create a new `AutoCfg` instance.
///
/// # Panics
///
/// Panics if `AutoCfg::new()` returns an error.
pub fn new() -> AutoCfg {
AutoCfg::new().unwrap()
}
impl AutoCfg {
/// Create a new `AutoCfg` instance.
///
/// # Common errors
///
/// - `rustc` can't be executed, from `RUSTC` or in the `PATH`.
/// - The version output from `rustc` can't be parsed.
/// - `OUT_DIR` is not set in the environment, or is not a writable directory.
///
pub fn new() -> Result<Self, Error> {
match env::var_os("OUT_DIR") {
Some(d) => Self::with_dir(d),
None => Err(error::from_str("no OUT_DIR specified!")),
}
}
/// Create a new `AutoCfg` instance with the specified output directory.
///
/// # Common errors
///
/// - `rustc` can't be executed, from `RUSTC` or in the `PATH`.
/// - The version output from `rustc` can't be parsed.
/// - `dir` is not a writable directory.
///
pub fn with_dir<T: Into<PathBuf>>(dir: T) -> Result<Self, Error> {
let rustc = env::var_os("RUSTC").unwrap_or_else(|| "rustc".into());
let rustc: PathBuf = rustc.into();
let rustc_version = try!(Version::from_rustc(&rustc));
let target = env::var_os("TARGET");
// Sanity check the output directory
let dir = dir.into();
let meta = try!(fs::metadata(&dir).map_err(error::from_io));
if !meta.is_dir() || meta.permissions().readonly() {
return Err(error::from_str("output path is not a writable directory"));
}
let mut ac = AutoCfg {
rustflags: rustflags(&target, &dir),
out_dir: dir,
rustc: rustc,
rustc_version: rustc_version,
target: target,
no_std: false,
};
// Sanity check with and without `std`.
if !ac.probe("").unwrap_or(false) {
ac.no_std = true;
if !ac.probe("").unwrap_or(false) {
// Neither worked, so assume nothing...
ac.no_std = false;
let warning = b"warning: autocfg could not probe for `std`\n";
stderr().write_all(warning).ok();
}
}
Ok(ac)
}
/// Test whether the current `rustc` reports a version greater than
/// or equal to "`major`.`minor`".
pub fn probe_rustc_version(&self, major: usize, minor: usize) -> bool {
self.rustc_version >= Version::new(major, minor, 0)
}
/// Sets a `cfg` value of the form `rustc_major_minor`, like `rustc_1_29`,
/// if the current `rustc` is at least that version.
pub fn emit_rustc_version(&self, major: usize, minor: usize) {
if self.probe_rustc_version(major, minor) {
emit(&format!("rustc_{}_{}", major, minor));
}
}
fn probe<T: AsRef<[u8]>>(&self, code: T) -> Result<bool, Error> {
#[allow(deprecated)]
static ID: AtomicUsize = ATOMIC_USIZE_INIT;
let id = ID.fetch_add(1, Ordering::Relaxed);
let mut command = Command::new(&self.rustc);
command
.arg("--crate-name")
.arg(format!("probe{}", id))
.arg("--crate-type=lib")
.arg("--out-dir")
.arg(&self.out_dir)
.arg("--emit=llvm-ir");
if let Some(target) = self.target.as_ref() {
command.arg("--target").arg(target);
}
command.args(&self.rustflags);
command.arg("-").stdin(Stdio::piped());
let mut child = try!(command.spawn().map_err(error::from_io));
let mut stdin = child.stdin.take().expect("rustc stdin");
if self.no_std {
try!(stdin.write_all(b"#![no_std]\n").map_err(error::from_io));
}
try!(stdin.write_all(code.as_ref()).map_err(error::from_io));
drop(stdin);
let status = try!(child.wait().map_err(error::from_io));
Ok(status.success())
}
/// Tests whether the given sysroot crate can be used.
///
/// The test code is subject to change, but currently looks like:
///
/// ```ignore
/// extern crate CRATE as probe;
/// ```
pub fn probe_sysroot_crate(&self, name: &str) -> bool {
self.probe(format!("extern crate {} as probe;", name)) // `as _` wasn't stabilized until Rust 1.33
.unwrap_or(false)
}
/// Emits a config value `has_CRATE` if `probe_sysroot_crate` returns true.
pub fn emit_sysroot_crate(&self, name: &str) {
if self.probe_sysroot_crate(name) {
emit(&format!("has_{}", mangle(name)));
}
}
/// Tests whether the given path can be used.
///
/// The test code is subject to change, but currently looks like:
///
/// ```ignore
/// pub use PATH;
/// ```
pub fn probe_path(&self, path: &str) -> bool {
self.probe(format!("pub use {};", path)).unwrap_or(false)
}
/// Emits a config value `has_PATH` if `probe_path` returns true.
///
/// Any non-identifier characters in the `path` will be replaced with
/// `_` in the generated config value.
pub fn emit_has_path(&self, path: &str) {
if self.probe_path(path) {
emit(&format!("has_{}", mangle(path)));
}
}
/// Emits the given `cfg` value if `probe_path` returns true.
pub fn emit_path_cfg(&self, path: &str, cfg: &str) {
if self.probe_path(path) {
emit(cfg);
}
}
/// Tests whether the given trait can be used.
///
/// The test code is subject to change, but currently looks like:
///
/// ```ignore
/// pub trait Probe: TRAIT + Sized {}
/// ```
pub fn probe_trait(&self, name: &str) -> bool {
self.probe(format!("pub trait Probe: {} + Sized {{}}", name))
.unwrap_or(false)
}
/// Emits a config value `has_TRAIT` if `probe_trait` returns true.
///
/// Any non-identifier characters in the trait `name` will be replaced with
/// `_` in the generated config value.
pub fn emit_has_trait(&self, name: &str) {
if self.probe_trait(name) {
emit(&format!("has_{}", mangle(name)));
}
}
/// Emits the given `cfg` value if `probe_trait` returns true.
pub fn emit_trait_cfg(&self, name: &str, cfg: &str) {
if self.probe_trait(name) {
emit(cfg);
}
}
/// Tests whether the given type can be used.
///
/// The test code is subject to change, but currently looks like:
///
/// ```ignore
/// pub type Probe = TYPE;
/// ```
pub fn probe_type(&self, name: &str) -> bool {
self.probe(format!("pub type Probe = {};", name))
.unwrap_or(false)
}
/// Emits a config value `has_TYPE` if `probe_type` returns true.
///
/// Any non-identifier characters in the type `name` will be replaced with
/// `_` in the generated config value.
pub fn emit_has_type(&self, name: &str) {
if self.probe_type(name) {
emit(&format!("has_{}", mangle(name)));
}
}
/// Emits the given `cfg` value if `probe_type` returns true.
pub fn emit_type_cfg(&self, name: &str, cfg: &str) {
if self.probe_type(name) {
emit(cfg);
}
}
/// Tests whether the given expression can be used.
///
/// The test code is subject to change, but currently looks like:
///
/// ```ignore
/// pub fn probe() { let _ = EXPR; }
/// ```
pub fn probe_expression(&self, expr: &str) -> bool {
self.probe(format!("pub fn probe() {{ let _ = {}; }}", expr))
.unwrap_or(false)
}
/// Emits the given `cfg` value if `probe_expression` returns true.
pub fn emit_expression_cfg(&self, expr: &str, cfg: &str) {
if self.probe_expression(expr) {
emit(cfg);
}
}
/// Tests whether the given constant expression can be used.
///
/// The test code is subject to change, but currently looks like:
///
/// ```ignore
/// pub const PROBE: () = ((), EXPR).0;
/// ```
pub fn probe_constant(&self, expr: &str) -> bool {
self.probe(format!("pub const PROBE: () = ((), {}).0;", expr))
.unwrap_or(false)
}
/// Emits the given `cfg` value if `probe_constant` returns true.
pub fn emit_constant_cfg(&self, expr: &str, cfg: &str) {
if self.probe_constant(expr) {
emit(cfg);
}
}
}
fn mangle(s: &str) -> String {
s.chars()
.map(|c| match c {
'A'...'Z' | 'a'...'z' | '0'...'9' => c,
_ => '_',
})
.collect()
}
fn dir_contains_target(
target: &Option<OsString>,
dir: &Path,
cargo_target_dir: Option<OsString>,
) -> bool {
target
.as_ref()
.and_then(|target| {
dir.to_str().and_then(|dir| {
let mut cargo_target_dir = cargo_target_dir
.map(PathBuf::from)
.unwrap_or_else(|| PathBuf::from("target"));
cargo_target_dir.push(target);
cargo_target_dir
.to_str()
.map(|cargo_target_dir| dir.contains(&cargo_target_dir))
})
})
.unwrap_or(false)
}
fn rustflags(target: &Option<OsString>, dir: &Path) -> Vec<String> {
// Starting with rust-lang/cargo#9601, shipped in Rust 1.55, Cargo always sets
// CARGO_ENCODED_RUSTFLAGS for any host/target build script invocation. This
// includes any source of flags, whether from the environment, toml config, or
// whatever may come in the future. The value is either an empty string, or a
// list of arguments separated by the ASCII unit separator (US), 0x1f.
if let Ok(a) = env::var("CARGO_ENCODED_RUSTFLAGS") {
return if a.is_empty() {
Vec::new()
} else {
a.split('\x1f').map(str::to_string).collect()
};
}
// Otherwise, we have to take a more heuristic approach, and we don't
// support values from toml config at all.
//
// Cargo only applies RUSTFLAGS for building TARGET artifact in
// cross-compilation environment. Sadly, we don't have a way to detect
// when we're building HOST artifact in a cross-compilation environment,
// so for now we only apply RUSTFLAGS when cross-compiling an artifact.
//
// See https://github.com/cuviper/autocfg/pull/10#issuecomment-527575030.
if *target != env::var_os("HOST")
|| dir_contains_target(target, dir, env::var_os("CARGO_TARGET_DIR"))
{
if let Ok(rustflags) = env::var("RUSTFLAGS") {
// This is meant to match how cargo handles the RUSTFLAGS environment variable.
// See https://github.com/rust-lang/cargo/blob/69aea5b6f69add7c51cca939a79644080c0b0ba0/src/cargo/core/compiler/build_context/target_info.rs#L434-L441
return rustflags
.split(' ')
.map(str::trim)
.filter(|s| !s.is_empty())
.map(str::to_string)
.collect();
}
}
Vec::new()
}

174
vendor/autocfg/src/tests.rs vendored
View file

@ -1,174 +0,0 @@
use super::AutoCfg;
use std::env;
use std::path::Path;
impl AutoCfg {
fn core_std(&self, path: &str) -> String {
let krate = if self.no_std { "core" } else { "std" };
format!("{}::{}", krate, path)
}
fn assert_std(&self, probe_result: bool) {
assert_eq!(!self.no_std, probe_result);
}
fn assert_min(&self, major: usize, minor: usize, probe_result: bool) {
assert_eq!(self.probe_rustc_version(major, minor), probe_result);
}
fn for_test() -> Result<Self, super::error::Error> {
match env::var_os("TESTS_TARGET_DIR") {
Some(d) => Self::with_dir(d),
None => Self::with_dir("target"),
}
}
}
#[test]
fn autocfg_version() {
let ac = AutoCfg::for_test().unwrap();
println!("version: {:?}", ac.rustc_version);
assert!(ac.probe_rustc_version(1, 0));
}
#[test]
fn version_cmp() {
use super::version::Version;
let v123 = Version::new(1, 2, 3);
assert!(Version::new(1, 0, 0) < v123);
assert!(Version::new(1, 2, 2) < v123);
assert!(Version::new(1, 2, 3) == v123);
assert!(Version::new(1, 2, 4) > v123);
assert!(Version::new(1, 10, 0) > v123);
assert!(Version::new(2, 0, 0) > v123);
}
#[test]
fn probe_add() {
let ac = AutoCfg::for_test().unwrap();
let add = ac.core_std("ops::Add");
let add_rhs = add.clone() + "<i32>";
let add_rhs_output = add.clone() + "<i32, Output = i32>";
let dyn_add_rhs_output = "dyn ".to_string() + &*add_rhs_output;
assert!(ac.probe_path(&add));
assert!(ac.probe_trait(&add));
assert!(ac.probe_trait(&add_rhs));
assert!(ac.probe_trait(&add_rhs_output));
ac.assert_min(1, 27, ac.probe_type(&dyn_add_rhs_output));
}
#[test]
fn probe_as_ref() {
let ac = AutoCfg::for_test().unwrap();
let as_ref = ac.core_std("convert::AsRef");
let as_ref_str = as_ref.clone() + "<str>";
let dyn_as_ref_str = "dyn ".to_string() + &*as_ref_str;
assert!(ac.probe_path(&as_ref));
assert!(ac.probe_trait(&as_ref_str));
assert!(ac.probe_type(&as_ref_str));
ac.assert_min(1, 27, ac.probe_type(&dyn_as_ref_str));
}
#[test]
fn probe_i128() {
let ac = AutoCfg::for_test().unwrap();
let i128_path = ac.core_std("i128");
ac.assert_min(1, 26, ac.probe_path(&i128_path));
ac.assert_min(1, 26, ac.probe_type("i128"));
}
#[test]
fn probe_sum() {
let ac = AutoCfg::for_test().unwrap();
let sum = ac.core_std("iter::Sum");
let sum_i32 = sum.clone() + "<i32>";
let dyn_sum_i32 = "dyn ".to_string() + &*sum_i32;
ac.assert_min(1, 12, ac.probe_path(&sum));
ac.assert_min(1, 12, ac.probe_trait(&sum));
ac.assert_min(1, 12, ac.probe_trait(&sum_i32));
ac.assert_min(1, 12, ac.probe_type(&sum_i32));
ac.assert_min(1, 27, ac.probe_type(&dyn_sum_i32));
}
#[test]
fn probe_std() {
let ac = AutoCfg::for_test().unwrap();
ac.assert_std(ac.probe_sysroot_crate("std"));
}
#[test]
fn probe_alloc() {
let ac = AutoCfg::for_test().unwrap();
ac.assert_min(1, 36, ac.probe_sysroot_crate("alloc"));
}
#[test]
fn probe_bad_sysroot_crate() {
let ac = AutoCfg::for_test().unwrap();
assert!(!ac.probe_sysroot_crate("doesnt_exist"));
}
#[test]
fn probe_no_std() {
let ac = AutoCfg::for_test().unwrap();
assert!(ac.probe_type("i32"));
assert!(ac.probe_type("[i32]"));
ac.assert_std(ac.probe_type("Vec<i32>"));
}
#[test]
fn probe_expression() {
let ac = AutoCfg::for_test().unwrap();
assert!(ac.probe_expression(r#""test".trim_left()"#));
ac.assert_min(1, 30, ac.probe_expression(r#""test".trim_start()"#));
ac.assert_std(ac.probe_expression("[1, 2, 3].to_vec()"));
}
#[test]
fn probe_constant() {
let ac = AutoCfg::for_test().unwrap();
assert!(ac.probe_constant("1 + 2 + 3"));
ac.assert_min(1, 33, ac.probe_constant("{ let x = 1 + 2 + 3; x * x }"));
ac.assert_min(1, 39, ac.probe_constant(r#""test".len()"#));
}
#[test]
fn dir_does_not_contain_target() {
assert!(!super::dir_contains_target(
&Some("x86_64-unknown-linux-gnu".into()),
Path::new("/project/target/debug/build/project-ea75983148559682/out"),
None,
));
}
#[test]
fn dir_does_contain_target() {
assert!(super::dir_contains_target(
&Some("x86_64-unknown-linux-gnu".into()),
Path::new(
"/project/target/x86_64-unknown-linux-gnu/debug/build/project-0147aca016480b9d/out"
),
None,
));
}
#[test]
fn dir_does_not_contain_target_with_custom_target_dir() {
assert!(!super::dir_contains_target(
&Some("x86_64-unknown-linux-gnu".into()),
Path::new("/project/custom/debug/build/project-ea75983148559682/out"),
Some("custom".into()),
));
}
#[test]
fn dir_does_contain_target_with_custom_target_dir() {
assert!(super::dir_contains_target(
&Some("x86_64-unknown-linux-gnu".into()),
Path::new(
"/project/custom/x86_64-unknown-linux-gnu/debug/build/project-0147aca016480b9d/out"
),
Some("custom".into()),
));
}

60
vendor/autocfg/src/version.rs vendored
View file

@ -1,60 +0,0 @@
use std::path::Path;
use std::process::Command;
use std::str;
use super::{error, Error};
/// A version structure for making relative comparisons.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct Version {
major: usize,
minor: usize,
patch: usize,
}
impl Version {
/// Creates a `Version` instance for a specific `major.minor.patch` version.
pub fn new(major: usize, minor: usize, patch: usize) -> Self {
Version {
major: major,
minor: minor,
patch: patch,
}
}
pub fn from_rustc(rustc: &Path) -> Result<Self, Error> {
// Get rustc's verbose version
let output = try!(Command::new(rustc)
.args(&["--version", "--verbose"])
.output()
.map_err(error::from_io));
if !output.status.success() {
return Err(error::from_str("could not execute rustc"));
}
let output = try!(str::from_utf8(&output.stdout).map_err(error::from_utf8));
// Find the release line in the verbose version output.
let release = match output.lines().find(|line| line.starts_with("release: ")) {
Some(line) => &line["release: ".len()..],
None => return Err(error::from_str("could not find rustc release")),
};
// Strip off any extra channel info, e.g. "-beta.N", "-nightly"
let version = match release.find('-') {
Some(i) => &release[..i],
None => release,
};
// Split the version into semver components.
let mut iter = version.splitn(3, '.');
let major = try!(iter.next().ok_or(error::from_str("missing major version")));
let minor = try!(iter.next().ok_or(error::from_str("missing minor version")));
let patch = try!(iter.next().ok_or(error::from_str("missing patch version")));
Ok(Version::new(
try!(major.parse().map_err(error::from_num)),
try!(minor.parse().map_err(error::from_num)),
try!(patch.parse().map_err(error::from_num)),
))
}
}

33
vendor/autocfg/tests/rustflags.rs vendored
View file

@ -1,33 +0,0 @@
extern crate autocfg;
use std::env;
/// Tests that autocfg uses the RUSTFLAGS or CARGO_ENCODED_RUSTFLAGS
/// environment variables when running rustc.
#[test]
fn test_with_sysroot() {
// Use the same path as this test binary.
let dir = env::current_exe().unwrap().parent().unwrap().to_path_buf();
env::set_var("OUT_DIR", &format!("{}", dir.display()));
// If we have encoded rustflags, they take precedence, even if empty.
env::set_var("CARGO_ENCODED_RUSTFLAGS", "");
env::set_var("RUSTFLAGS", &format!("-L {}", dir.display()));
let ac = autocfg::AutoCfg::new().unwrap();
assert!(ac.probe_sysroot_crate("std"));
assert!(!ac.probe_sysroot_crate("autocfg"));
// Now try again with useful encoded args.
env::set_var(
"CARGO_ENCODED_RUSTFLAGS",
&format!("-L\x1f{}", dir.display()),
);
let ac = autocfg::AutoCfg::new().unwrap();
assert!(ac.probe_sysroot_crate("autocfg"));
// Try the old-style RUSTFLAGS, ensuring HOST != TARGET.
env::remove_var("CARGO_ENCODED_RUSTFLAGS");
env::set_var("HOST", "lol");
let ac = autocfg::AutoCfg::new().unwrap();
assert!(ac.probe_sysroot_crate("autocfg"));
}

1
vendor/bitflags/.cargo-checksum.json vendored
View file

@ -1 +0,0 @@
{"files":{"CHANGELOG.md":"d362fc1fccaaf4d421bcf0fe8b80ddb4f625dade0c1ee52d08bd0b95509a49d1","CODE_OF_CONDUCT.md":"42634d0f6d922f49857175af991802822f7f920487aefa2ee250a50d12251a66","Cargo.toml":"87aced7532a7974eb37ab5fe6037f0abafc36d6b2d74891ecd2bf2f14f50d11e","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"6485b8ed310d3f0340bf1ad1f47645069ce4069dcc6bb46c7d5c6faf41de1fdb","README.md":"baa8604f8afb34fd93b9c79729daafb884dedcaf34023e4af8ad037d916061fd","src/example_generated.rs":"e43eb59e90f317f38d436670a6067d2fd9eb35fb319fe716184e4a04e24ed1b2","src/lib.rs":"e6477688535ee326d27238aeedc9cb4320ac35b9d17a4deda09e0587b0ccdbd4","tests/basic.rs":"146f1cbf6279bc609242cd3349f29cb21b41294f5e4921875f5ec95bd83529a2","tests/compile-fail/impls/copy.rs":"b791371237ddc75a7c04d2130e03b462c9c00a80dca08bd45aa97433d9c0d13a","tests/compile-fail/impls/copy.stderr.beta":"77d83484ce221d4b6ff2f7de843929a452d779fcfff428122710dd8218c298e3","tests/compile-fail/impls/eq.rs":"0cee8b9e07d537890e0189710293b53972d0fab63c09366f33c391065afafa99","tests/compile-fail/impls/eq.stderr.beta":"381fc6143d45ce76d7cecc47aa59cb69fe5e79c0b60a4a85d5c6163b400b3cc7","tests/compile-fail/non_integer_base/all_defined.rs":"95e14cad9e94560262f2862c3c01865ac30369b69da1001b0e7285cb55e6cb75","tests/compile-fail/non_integer_base/all_defined.stderr.beta":"1760739a276690903bb03844025587d37939f5dfcbfab309db3c86f32bdbf748","tests/compile-fail/non_integer_base/all_missing.rs":"b3d9da619d23213731ba2581aa7999c796c3c79aaf4f0ee6b11ceec08a11537f","tests/compile-fail/non_integer_base/all_missing.stderr.beta":"37e102290d3867e175b21976be798939f294efb17580d5b51e7b17b590d55132","tests/compile-fail/visibility/private_field.rs":"38e4d3fe6471829360d12c8d09b097f6a21aa93fb51eac3b215d96bdae23316b","tests/compile-fail/visibility/private_field.stderr.beta":"5aa24a3ebb39326f31927721c5017b8beb66c3e501fb865a3fa814c9763bfa0f","tests/compile-fail/visibility/private_flags.rs":"2ce4235802aa4e9c96c4e77d9e31d8401ef58dcda4741325184f0764ab1fe393","tests/compile-fail/visibility/private_flags.stderr.beta":"f3eb9f7baf2689258f3519ff7ee5c6ec3c237264ebcfe63f40c40f2023e5022f","tests/compile-fail/visibility/pub_const.rs":"8f813a97ac518c5ea8ac65b184101912452384afaf7b8d6c5e62f8370eca3c0a","tests/compile-fail/visibility/pub_const.stderr.beta":"823976ae1794d7f5372e2ec9aabba497e7bb88004722904c38da342ed98e8962","tests/compile-pass/impls/convert.rs":"88fe80bfb9cd5779f0e1d92c9ec02a8b6bb67e334c07f2309e9c0ba5ef776eb0","tests/compile-pass/impls/default.rs":"c508f9a461691f44b45142fa5ad599f02326e1de4c0cbca6c0593f4652eba109","tests/compile-pass/impls/inherent_methods.rs":"ecc26388e9a394bfa7a5bb69a5d621ab3d4d1e53f28f657bb8e78fe79f437913","tests/compile-pass/redefinition/core.rs":"ff5b6e72f87acc6ebb12405d3c0f6e3fa62e669933656a454bb63b30ea44179c","tests/compile-pass/redefinition/stringify.rs":"1edbce42b900c14425d7ffa14e83e165ebe452d7dccd8c0a8a821bdec64f5c93","tests/compile-pass/repr/c.rs":"6fda17f7c2edfcd155314579e83d0fc8a16209e400f1f9a5ca77bd9a799041f2","tests/compile-pass/repr/transparent.rs":"6cdc87a2137d8a4e0c8ce9b6cba83c82255f8ea125951bf614418685600489ce","tests/compile-pass/visibility/bits_field.rs":"1f3e5ba5a047440066a9f6bf7b7af33f5b06f6b1da3dd9af6886168199a7ea0a","tests/compile-pass/visibility/pub_in.rs":"e95312ff60966d42ec4bc00225507895a9b8ec24056ce6a9edd9145be35d730f","tests/compile.rs":"f27c67a7dd183ca30efea1b6e0880e3469a6dd63b92b1fd711c082df182c9eec"},"package":"bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"}

206
vendor/bitflags/CHANGELOG.md vendored
View file

@ -1,206 +0,0 @@
# 1.3.2
- Allow `non_snake_case` in generated flags types ([#256])
[#252]: https://github.com/bitflags/bitflags/pull/256
# 1.3.1
- Revert unconditional `#[repr(transparent)]` ([#252])
[#252]: https://github.com/bitflags/bitflags/pull/252
# 1.3.0 (yanked)
- Add `#[repr(transparent)]` ([#187])
- End `empty` doc comment with full stop ([#202])
- Fix typo in crate root docs ([#206])
- Document from_bits_unchecked unsafety ([#207])
- Let `is_all` ignore extra bits ([#211])
- Allows empty flag definition ([#225])
- Making crate accessible from std ([#227])
- Make `from_bits` a const fn ([#229])
- Allow multiple bitflags structs in one macro invocation ([#235])
- Add named functions to perform set operations ([#244])
- Fix typos in method docs ([#245])
- Modernization of the `bitflags` macro to take advantage of newer features and 2018 idioms ([#246])
- Fix regression (in an unreleased feature) and simplify tests ([#247])
- Use `Self` and fix bug when overriding `stringify!` ([#249])
[#187]: https://github.com/bitflags/bitflags/pull/187
[#202]: https://github.com/bitflags/bitflags/pull/202
[#206]: https://github.com/bitflags/bitflags/pull/206
[#207]: https://github.com/bitflags/bitflags/pull/207
[#211]: https://github.com/bitflags/bitflags/pull/211
[#225]: https://github.com/bitflags/bitflags/pull/225
[#227]: https://github.com/bitflags/bitflags/pull/227
[#229]: https://github.com/bitflags/bitflags/pull/229
[#235]: https://github.com/bitflags/bitflags/pull/235
[#244]: https://github.com/bitflags/bitflags/pull/244
[#245]: https://github.com/bitflags/bitflags/pull/245
[#246]: https://github.com/bitflags/bitflags/pull/246
[#247]: https://github.com/bitflags/bitflags/pull/247
[#249]: https://github.com/bitflags/bitflags/pull/249
# 1.2.1
- Remove extraneous `#[inline]` attributes ([#194])
[#194]: https://github.com/bitflags/bitflags/pull/194
# 1.2.0
- Fix typo: {Lower, Upper}Exp - {Lower, Upper}Hex ([#183])
- Add support for "unknown" bits ([#188])
[#183]: https://github.com/rust-lang-nursery/bitflags/pull/183
[#188]: https://github.com/rust-lang-nursery/bitflags/pull/188
# 1.1.0
This is a re-release of `1.0.5`, which was yanked due to a bug in the RLS.
# 1.0.5
- Use compiletest_rs flags supported by stable toolchain ([#171])
- Put the user provided attributes first ([#173])
- Make bitflags methods `const` on newer compilers ([#175])
[#171]: https://github.com/rust-lang-nursery/bitflags/pull/171
[#173]: https://github.com/rust-lang-nursery/bitflags/pull/173
[#175]: https://github.com/rust-lang-nursery/bitflags/pull/175
# 1.0.4
- Support Rust 2018 style macro imports ([#165])
```rust
use bitflags::bitflags;
```
[#165]: https://github.com/rust-lang-nursery/bitflags/pull/165
# 1.0.3
- Improve zero value flag handling and documentation ([#157])
[#157]: https://github.com/rust-lang-nursery/bitflags/pull/157
# 1.0.2
- 30% improvement in compile time of bitflags crate ([#156])
- Documentation improvements ([#153])
- Implementation cleanup ([#149])
[#156]: https://github.com/rust-lang-nursery/bitflags/pull/156
[#153]: https://github.com/rust-lang-nursery/bitflags/pull/153
[#149]: https://github.com/rust-lang-nursery/bitflags/pull/149
# 1.0.1
- Add support for `pub(restricted)` specifier on the bitflags struct ([#135])
- Optimize performance of `all()` when called from a separate crate ([#136])
[#135]: https://github.com/rust-lang-nursery/bitflags/pull/135
[#136]: https://github.com/rust-lang-nursery/bitflags/pull/136
# 1.0.0
- **[breaking change]** Macro now generates [associated constants](https://doc.rust-lang.org/reference/items.html#associated-constants) ([#24])
- **[breaking change]** Minimum supported version is Rust **1.20**, due to usage of associated constants
- After being broken in 0.9, the `#[deprecated]` attribute is now supported again ([#112])
- Other improvements to unit tests and documentation ([#106] and [#115])
[#24]: https://github.com/rust-lang-nursery/bitflags/pull/24
[#106]: https://github.com/rust-lang-nursery/bitflags/pull/106
[#112]: https://github.com/rust-lang-nursery/bitflags/pull/112
[#115]: https://github.com/rust-lang-nursery/bitflags/pull/115
## How to update your code to use associated constants
Assuming the following structure definition:
```rust
bitflags! {
struct Something: u8 {
const FOO = 0b01,
const BAR = 0b10
}
}
```
In 0.9 and older you could do:
```rust
let x = FOO.bits | BAR.bits;
```
Now you must use:
```rust
let x = Something::FOO.bits | Something::BAR.bits;
```
# 0.9.1
- Fix the implementation of `Formatting` traits when other formatting traits were present in scope ([#105])
[#105]: https://github.com/rust-lang-nursery/bitflags/pull/105
# 0.9.0
- **[breaking change]** Use struct keyword instead of flags to define bitflag types ([#84])
- **[breaking change]** Terminate const items with semicolons instead of commas ([#87])
- Implement the `Hex`, `Octal`, and `Binary` formatting traits ([#86])
- Printing an empty flag value with the `Debug` trait now prints "(empty)" instead of nothing ([#85])
- The `bitflags!` macro can now be used inside of a fn body, to define a type local to that function ([#74])
[#74]: https://github.com/rust-lang-nursery/bitflags/pull/74
[#84]: https://github.com/rust-lang-nursery/bitflags/pull/84
[#85]: https://github.com/rust-lang-nursery/bitflags/pull/85
[#86]: https://github.com/rust-lang-nursery/bitflags/pull/86
[#87]: https://github.com/rust-lang-nursery/bitflags/pull/87
# 0.8.2
- Update feature flag used when building bitflags as a dependency of the Rust toolchain
# 0.8.1
- Allow bitflags to be used as a dependency of the Rust toolchain
# 0.8.0
- Add support for the experimental `i128` and `u128` integer types ([#57])
- Add set method: `flags.set(SOME_FLAG, true)` or `flags.set(SOME_FLAG, false)` ([#55])
This may break code that defines its own set method
[#55]: https://github.com/rust-lang-nursery/bitflags/pull/55
[#57]: https://github.com/rust-lang-nursery/bitflags/pull/57
# 0.7.1
*(yanked)*
# 0.7.0
- Implement the Extend trait ([#49])
- Allow definitions inside the `bitflags!` macro to refer to items imported from other modules ([#51])
[#49]: https://github.com/rust-lang-nursery/bitflags/pull/49
[#51]: https://github.com/rust-lang-nursery/bitflags/pull/51
# 0.6.0
- The `no_std` feature was removed as it is now the default
- The `assignment_operators` feature was remove as it is now enabled by default
- Some clippy suggestions have been applied

73
vendor/bitflags/CODE_OF_CONDUCT.md vendored
View file

@ -1,73 +0,0 @@
# Contributor Covenant Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, gender identity and expression, level of experience,
education, socio-economic status, nationality, personal appearance, race,
religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment
include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or
reject comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct, or to ban temporarily or
permanently any contributor for other behaviors that they deem inappropriate,
threatening, offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community. Examples of
representing a project or community include using an official project e-mail
address, posting via an official social media account, or acting as an appointed
representative at an online or offline event. Representation of a project may be
further defined and clarified by project maintainers.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported by contacting the project team at coc@senaite.org. All
complaints will be reviewed and investigated and will result in a response that
is deemed necessary and appropriate to the circumstances. The project team is
obligated to maintain confidentiality with regard to the reporter of an incident.
Further details of specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good
faith may face temporary or permanent repercussions as determined by other
members of the project's leadership.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
[homepage]: https://www.contributor-covenant.org

58
vendor/bitflags/Cargo.toml vendored
View file

@ -1,58 +0,0 @@
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
[package]
edition = "2018"
name = "bitflags"
version = "1.3.2"
authors = ["The Rust Project Developers"]
exclude = ["bors.toml"]
description = "A macro to generate structures which behave like bitflags.\n"
homepage = "https://github.com/bitflags/bitflags"
documentation = "https://docs.rs/bitflags"
readme = "README.md"
keywords = ["bit", "bitmask", "bitflags", "flags"]
categories = ["no-std"]
license = "MIT/Apache-2.0"
repository = "https://github.com/bitflags/bitflags"
[package.metadata.docs.rs]
features = ["example_generated"]
[dependencies.compiler_builtins]
version = "0.1.2"
optional = true
[dependencies.core]
version = "1.0.0"
optional = true
package = "rustc-std-workspace-core"
[dev-dependencies.rustversion]
version = "1.0"
[dev-dependencies.serde]
version = "1.0"
[dev-dependencies.serde_derive]
version = "1.0"
[dev-dependencies.serde_json]
version = "1.0"
[dev-dependencies.trybuild]
version = "1.0"
[dev-dependencies.walkdir]
version = "2.3"
[features]
default = []
example_generated = []
rustc-dep-of-std = ["core", "compiler_builtins"]

201
vendor/bitflags/LICENSE-APACHE vendored
View file

@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

25
vendor/bitflags/LICENSE-MIT vendored
View file

@ -1,25 +0,0 @@
Copyright (c) 2014 The Rust Project Developers
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

32
vendor/bitflags/README.md vendored
View file

@ -1,32 +0,0 @@
bitflags
========
[![Rust](https://github.com/bitflags/bitflags/workflows/Rust/badge.svg)](https://github.com/bitflags/bitflags/actions)
[![Join the chat at https://gitter.im/bitflags/Lobby](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/bitflags/Lobby?utm_source=badge&utm_medium=badge&utm_content=badge)
[![Latest version](https://img.shields.io/crates/v/bitflags.svg)](https://crates.io/crates/bitflags)
[![Documentation](https://docs.rs/bitflags/badge.svg)](https://docs.rs/bitflags)
![License](https://img.shields.io/crates/l/bitflags.svg)
A Rust macro to generate structures which behave like a set of bitflags
- [Documentation](https://docs.rs/bitflags)
- [Release notes](https://github.com/bitflags/bitflags/releases)
## Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
bitflags = "1.3"
```
and this to your source code:
```rust
use bitflags::bitflags;
```
## Rust Version Support
The minimum supported Rust version is 1.46 due to use of associated constants and const functions.

14
vendor/bitflags/src/example_generated.rs vendored
View file

@ -1,14 +0,0 @@
//! This module shows an example of code generated by the macro. **IT MUST NOT BE USED OUTSIDE THIS
//! CRATE**.
bitflags! {
/// This is the same `Flags` struct defined in the [crate level example](../index.html#example).
/// Note that this struct is just for documentation purposes only, it must not be used outside
/// this crate.
pub struct Flags: u32 {
const A = 0b00000001;
const B = 0b00000010;
const C = 0b00000100;
const ABC = Self::A.bits | Self::B.bits | Self::C.bits;
}
}

1729
vendor/bitflags/src/lib.rs vendored
View file

File diff suppressed because it is too large Load diff

20
vendor/bitflags/tests/basic.rs vendored
View file

@ -1,20 +0,0 @@
#![no_std]
use bitflags::bitflags;
bitflags! {
/// baz
struct Flags: u32 {
const A = 0b00000001;
#[doc = "bar"]
const B = 0b00000010;
const C = 0b00000100;
#[doc = "foo"]
const ABC = Flags::A.bits | Flags::B.bits | Flags::C.bits;
}
}
#[test]
fn basic() {
assert_eq!(Flags::ABC, Flags::A | Flags::B | Flags::C);
}

Some files were not shown because too many files have changed in this diff Show more