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extract parse_fn_call_expr

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This commit is contained in:
Mazdak Farrokhzad 2019-12-07 00:08:44 +01:00
parent 98701b2c61
commit 287ba5d0c8
1 changed files with 9 additions and 9 deletions
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18
src/librustc_parse/parser/expr.rs
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@ -756,15 +756,7 @@ impl<'a> Parser<'a> {
break;
}
match self.token.kind {
// expr(...)
token::OpenDelim(token::Paren) => {
let seq = self.parse_paren_expr_seq().map(|es| {
let nd = self.mk_call(e, es);
let hi = self.prev_span;
self.mk_expr(lo.to(hi), nd, AttrVec::new())
});
e = self.recover_seq_parse_error(token::Paren, lo, seq);
}
token::OpenDelim(token::Paren) => e = Ok(self.parse_fn_call_expr(lo, e)),
token::OpenDelim(token::Bracket) => e = self.parse_index_expr(lo, e)?,
_ => return Ok(e),
}
@ -772,6 +764,14 @@ impl<'a> Parser<'a> {
return Ok(e);
}
/// Parse a function call expression, `expr(...)`.
fn parse_fn_call_expr(&mut self, lo: Span, fun: P<Expr>) -> P<Expr> {
let seq = self.parse_paren_expr_seq().map(|args| {
self.mk_expr(lo.to(self.prev_span), self.mk_call(fun, args), AttrVec::new())
});
self.recover_seq_parse_error(token::Paren, lo, seq)
}
/// Parse an indexing expression `expr[...]`.
fn parse_index_expr(&mut self, lo: Span, base: P<Expr>) -> PResult<'a, P<Expr>> {
self.bump(); // `[`