Allow declaring existential types inside blocks #52645
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dtolnay
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@bors r+ |
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📌 Commit 58758c5de691ff528a4053b84ef7b89f4b71724c has been approved by |
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src/libsyntax/parse/parser.rs
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| @@ -4391,6 +4391,10 @@ impl<'a> Parser<'a> { | |||
| self.token.is_keyword(keywords::Extern) && self.look_ahead(1, |t| t != &token::ModSep) | |||
| } | |||
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| fn is_existential_type_decl(&self) -> bool { | |||
| self.token.is_keyword(keywords::Existential) && self.look_ahead(1, |t| t.is_ident()) | |||
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Why check if the next token is an ident rather than checking if it is the keyword type?
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because I got confused and panicked by beating the problem with a shovel?
For real: I didn't find a token::Type and decided "oh checking for the concrete identifier is too hard"... all while i did that before the &&...
I'll fix it asap
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@bors r=dtolnay rollup |
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…tolnay Allow declaring existential types inside blocks fixes rust-lang#52631 r? @dtolnay
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Rollup of 7 pull requests Successful merges: - #52391 (Add unaligned volatile intrinsics) - #52402 (impl PartialEq+Eq for BuildHasherDefault) - #52645 (Allow declaring existential types inside blocks) - #52656 (Stablize Redox Unix Sockets) - #52658 (Prefer `Option::map`/etc over `match` wherever it improves clarity) - #52668 (clarify pointer offset function safety concerns) - #52677 (Release notes: add some missing 1.28 libs stabilization) Failed merges: r? @ghost
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fixes #52631
r? @dtolnay