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allow arrow to be an expr terminator in when guards

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Joshua Warner 2025-01-10 19:49:37 -08:00
parent 13a70c060d
commit 05033ac40b
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5 changed files with 65 additions and 0 deletions
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7
crates/compiler/parse/src/expr.rs
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@ -2998,6 +2998,13 @@ fn parse_stmt_seq<'a, E: SpaceProblem + 'a>(
break;
}
// If this expr might be followed by an arrow (e.g. in a when branch guard),
// then we also need to treat that as a terminator.
if !check_for_arrow.0 && new_state.bytes().starts_with(b"->") {
state = state_before_space;
break;
}
return Err((
MadeProgress,
wrap_error(arena.alloc(EExpr::BadExprEnd(state.pos())), state.pos()),