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macro_rules expr matcher doesn't match async #52951

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macro_rules expr matcher doesn't match async#52951
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A-parserArea: The lexing & parsing of Rust source code to an ASTE-easyCall for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.

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@cramertj
cramertj
opened on Aug 1, 2018
macro_rules! match_expr {
    ($x:expr) => {}
}

fn main() {
    match_expr!(async {})
}

fails with "error: no rules expected the token async". Playground link

Activity

  1. petrochenkov commented on Aug 1, 2018

    @petrochenkov
    petrochenkov
    on Aug 1, 2018
    Contributor

    async needs to be added to fn ident_can_begin_expr in libsyntax.

  2. petrochenkov
    added
    E-easyCall for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.
    A-parserArea: The lexing & parsing of Rust source code to an AST
    on Aug 1, 2018
  3. emilyalbini
    added a commit that references this issue on Aug 1, 2018

    Rollup merge of rust-lang#52954 - cramertj:async-parse, r=petrochenkov

    3e7897f
  4. bors
    closed this as completedin #52954on Aug 1, 2018
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