diff options
Diffstat (limited to 'src/test/ui/dyn-keyword/issue-56327-dyn-trait-in-macro-is-okay.rs')
-rw-r--r-- | src/test/ui/dyn-keyword/issue-56327-dyn-trait-in-macro-is-okay.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/dyn-keyword/issue-56327-dyn-trait-in-macro-is-okay.rs b/src/test/ui/dyn-keyword/issue-56327-dyn-trait-in-macro-is-okay.rs new file mode 100644 index 000000000..59e7f9a60 --- /dev/null +++ b/src/test/ui/dyn-keyword/issue-56327-dyn-trait-in-macro-is-okay.rs @@ -0,0 +1,27 @@ +// check-pass +// edition:2015 +// +// rust-lang/rust#56327: Some occurrences of `dyn` within a macro are +// not instances of identifiers, and thus should *not* be caught by the +// keyword_ident lint. +// +// Otherwise, rustfix replaces the type `Box<dyn Drop>` with +// `Box<r#dyn Drop>`, which is injecting a bug rather than fixing +// anything. + +#![deny(rust_2018_compatibility)] +#![allow(dyn_drop)] + +macro_rules! foo { + () => { + fn generated_foo() { + let _x: Box<dyn Drop>; + } + } +} + +foo!(); + +fn main() { + generated_foo(); +} |