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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/proc-macro/signature.stderr
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+error[E0277]: expected a `Fn<(proc_macro::TokenStream,)>` closure, found `unsafe extern "C" fn(i32, u32) -> u32 {foo}`
+ --> $DIR/signature.rs:10:1
+ |
+LL | / pub unsafe extern "C" fn foo(a: i32, b: u32) -> u32 {
+LL | |
+LL | | loop {}
+LL | | }
+ | |_^ call the function in a closure: `|| unsafe { /* code */ }`
+ |
+ = help: the trait `Fn<(proc_macro::TokenStream,)>` is not implemented for `unsafe extern "C" fn(i32, u32) -> u32 {foo}`
+ = note: unsafe function cannot be called generically without an unsafe block
+note: required by a bound in `ProcMacro::custom_derive`
+ --> $SRC_DIR/proc_macro/src/bridge/client.rs:LL:COL
+ |
+LL | expand: impl Fn(crate::TokenStream) -> crate::TokenStream + Copy,
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `ProcMacro::custom_derive`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.