Vendor things

third-party/vendor/zerocopy-derive/tests/ui-msrv/late_compile_pass.rs

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+// Copyright 2019 The Fuchsia Authors
+//
+// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+// This file may not be copied, modified, or distributed except according to
+// those terms.
+
+#[macro_use]
+extern crate zerocopy;
+
+#[path = "../util.rs"]
+mod util;
+
+use self::util::{NotZerocopy, AU16};
+use zerocopy::KnownLayout;
+
+fn main() {}
+
+// These tests cause errors which are generated by a later compilation pass than
+// the other errors we generate, and so if they're compiled in the same file,
+// the compiler will never get to that pass, and so we won't get the errors.
+
+//
+// FromZeroes errors
+//
+
+#[derive(FromZeroes)]
+struct FromZeroes1 {
+    value: NotZerocopy,
+}
+
+//
+// FromBytes errors
+//
+
+#[derive(FromBytes)]
+struct FromBytes1 {
+    value: NotZerocopy,
+}
+
+//
+// AsBytes errors
+//
+
+#[derive(AsBytes)]
+#[repr(C)]
+struct AsBytes1 {
+    value: NotZerocopy,
+}
+
+//
+// Unaligned errors
+//
+
+#[derive(Unaligned)]
+#[repr(C)]
+struct Unaligned1 {
+    aligned: AU16,
+}
+
+// This specifically tests a bug we had in an old version of the code in which
+// the trait bound would only be enforced for the first field's type.
+#[derive(Unaligned)]
+#[repr(C)]
+struct Unaligned2 {
+    unaligned: u8,
+    aligned: AU16,
+}
+
+#[derive(Unaligned)]
+#[repr(transparent)]
+struct Unaligned3 {
+    aligned: AU16,
+}