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Fix keyword parsing bug

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This commit is contained in:
Richard Feldman 2020-12-02 21:55:36 -05:00
parent 98fa4a752d
commit e2804398b4
1 changed files with 7 additions and 3 deletions
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10
compiler/parse/src/expr.rs
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@ -917,9 +917,13 @@ fn parse_def_signature<'a>(
fn loc_function_arg<'a>(min_indent: u16) -> impl Parser<'a, Located<Expr<'a>>> { fn loc_function_arg<'a>(min_indent: u16) -> impl Parser<'a, Located<Expr<'a>>> {
skip_first!( skip_first!(
// If this is a reserved keyword ("if", "then", "case, "when"), then // If this is a reserved keyword ("if", "then", "case, "when"),
// it is not a function argument! // followed by a blank space, then it is not a function argument!
not(reserved_keyword()), //
// (The space is necessary because otherwise we'll get a false
// positive on function arguments beginning with keywords,
// e.g. `ifBlah` or `isSomething` will register as `if`/`is` keywords)
not(and!(reserved_keyword(), space1(min_indent))),
// Don't parse operators, because they have a higher precedence than function application. // Don't parse operators, because they have a higher precedence than function application.
// If we encounter one, we're done parsing function args! // If we encounter one, we're done parsing function args!
move |arena, state| loc_parse_function_arg(min_indent, arena, state) move |arena, state| loc_parse_function_arg(min_indent, arena, state)