add test to reproduce #137662 (using ty decl macro fragment in an att… · rust-lang/rust@41dd80a (original) (raw)
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- compiler/rustc_attr_parsing/src
2 files changed
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -473,6 +473,15 @@ impl<'a> MetaItemListParserContext<'a> { | ||
| 473 | 473 | { |
| 474 | 474 | self.inside_delimiters.next(); |
| 475 | 475 | return Some(MetaItemOrLitParser::Lit(lit)); |
| 476 | +} else if let Some(TokenTree::Delimited(.., Delimiter::Invisible(_), inner_tokens)) = | |
| 477 | +self.inside_delimiters.peek() | |
| 478 | +{ | |
| 479 | +self.inside_delimiters.next(); | |
| 480 | +return MetaItemListParserContext { | |
| 481 | +inside_delimiters: inner_tokens.iter().peekable(), | |
| 482 | +dcx: self.dcx, | |
| 483 | +} | |
| 484 | +.next(); | |
| 476 | 485 | } |
| 477 | 486 | |
| 478 | 487 | // or a path. |
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| 1 | +// tests for #137662: using a ty or (or most other) fragment inside an attr macro wouldn't work | |
| 2 | +// because of a missing code path. With $repr: tt it did work. | |
| 3 | +//@ check-pass | |
| 4 | + | |
| 5 | +macro_rules! foo { | |
| 6 | +{ | |
| 7 | + $repr:ty | |
| 8 | +} => { | |
| 9 | + #[repr($repr)] | |
| 10 | +pub enum Foo { | |
| 11 | +Bar = 0i32, | |
| 12 | +} | |
| 13 | +} | |
| 14 | +} | |
| 15 | + | |
| 16 | +foo! { | |
| 17 | +i32 | |
| 18 | +} | |
| 19 | + | |
| 20 | +fn main() {} |