Vendor things

third-party/vendor/proc-macro-hack/tests/compiletest.rs

@@ -0,0 +1,6 @@
+#[rustversion::attr(not(nightly), ignore)]
+#[test]
+fn ui() {
+    let t = trybuild::TestCases::new();
+    t.compile_fail("tests/ui/*.rs");
+}

third-party/vendor/proc-macro-hack/tests/ui/private.rs

@@ -0,0 +1,8 @@
+use proc_macro_hack::proc_macro_hack;
+
+#[proc_macro_hack]
+fn my_macro(input: TokenStream) -> TokenStream {
+    unimplemented!()
+}
+
+fn main() {}

third-party/vendor/proc-macro-hack/tests/ui/private.stderr

@@ -0,0 +1,5 @@
+error: functions tagged with `#[proc_macro_hack]` must be `pub`
+ --> tests/ui/private.rs:4:1
+  |
+4 | fn my_macro(input: TokenStream) -> TokenStream {
+  | ^^

third-party/vendor/proc-macro-hack/tests/ui/unexpected-arg.rs

@@ -0,0 +1,8 @@
+use proc_macro_hack::proc_macro_hack;
+
+#[proc_macro_hack(fake_call_site)]
+pub fn my_macro(input: TokenStream) -> TokenStream {
+    unimplemented!()
+}
+
+fn main() {}

third-party/vendor/proc-macro-hack/tests/ui/unexpected-arg.stderr

@@ -0,0 +1,5 @@
+error: unexpected argument to proc_macro_hack macro implementation; args are only accepted on the macro declaration (the `pub use`)
+ --> tests/ui/unexpected-arg.rs:3:19
+  |
+3 | #[proc_macro_hack(fake_call_site)]
+  |                   ^^^^^^^^^^^^^^

third-party/vendor/proc-macro-hack/tests/ui/unexpected.rs

@@ -0,0 +1,6 @@
+use proc_macro_hack::proc_macro_hack;
+
+#[proc_macro_hack]
+pub struct What;
+
+fn main() {}

third-party/vendor/proc-macro-hack/tests/ui/unexpected.stderr

@@ -0,0 +1,5 @@
+error: unexpected input to #[proc_macro_hack]
+ --> tests/ui/unexpected.rs:4:5
+  |
+4 | pub struct What;
+  |     ^^^^^^

third-party/vendor/proc-macro-hack/tests/ui/unknown-arg.rs

@@ -0,0 +1,6 @@
+use proc_macro_hack::proc_macro_hack;
+
+#[proc_macro_hack(fake_call_site, support_nexted)]
+pub use demo::some_macro;
+
+fn main() {}

third-party/vendor/proc-macro-hack/tests/ui/unknown-arg.stderr

@@ -0,0 +1,5 @@
+error: expected one of: `support_nested`, `internal_macro_calls`, `fake_call_site`, `only_hack_old_rustc`
+ --> tests/ui/unknown-arg.rs:3:35
+  |
+3 | #[proc_macro_hack(fake_call_site, support_nexted)]
+  |                                   ^^^^^^^^^^^^^^