diff options
Diffstat (limited to 'src/test/ui/parser/underscore-suffix-for-string.rs')
-rw-r--r-- | src/test/ui/parser/underscore-suffix-for-string.rs | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/test/ui/parser/underscore-suffix-for-string.rs b/src/test/ui/parser/underscore-suffix-for-string.rs index 2e0ebe2cf..bd260752e 100644 --- a/src/test/ui/parser/underscore-suffix-for-string.rs +++ b/src/test/ui/parser/underscore-suffix-for-string.rs @@ -1,8 +1,17 @@ -// check-pass +macro_rules! sink { + ($tt:tt) => {()} +} fn main() { let _ = "Foo"_; - //~^ WARNING underscore literal suffix is not allowed - //~| WARNING this was previously accepted - //~| NOTE issue #42326 + //~^ ERROR underscore literal suffix is not allowed + + // This is ok, because `__` is a valid identifier and the macro consumes it + // before proper parsing happens. + let _ = sink!("Foo"__); + + // This is not ok, even as an input to a macro, because the `_` suffix is + // never allowed. + sink!("Foo"_); + //~^ ERROR underscore literal suffix is not allowed } |