diff options
Diffstat (limited to 'src/libsyntax/parse/parser.rs')
| -rw-r--r-- | src/libsyntax/parse/parser.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs index 8f8ed411180..42030acf9df 100644 --- a/src/libsyntax/parse/parser.rs +++ b/src/libsyntax/parse/parser.rs @@ -3275,6 +3275,14 @@ impl<'a> Parser<'a> { mut attrs: ThinVec<Attribute>) -> PResult<'a, P<Expr>> { // Parse: `for <src_pat> in <src_expr> <src_loop_block>` + // Record whether we are about to parse `for (`. + // This is used below for recovery in case of `for ( $stuff ) $block` + // in which case we will suggest `for $stuff $block`. + let begin_paren = match self.token.kind { + token::OpenDelim(token::Paren) => Some(self.token.span), + _ => None, + }; + let pat = self.parse_top_level_pat()?; if !self.eat_keyword(kw::In) { let in_span = self.prev_span.between(self.token.span); @@ -3290,6 +3298,9 @@ impl<'a> Parser<'a> { let in_span = self.prev_span; self.check_for_for_in_in_typo(in_span); let expr = self.parse_expr_res(Restrictions::NO_STRUCT_LITERAL, None)?; + + let pat = self.recover_parens_around_for_head(pat, &expr, begin_paren); + let (iattrs, loop_block) = self.parse_inner_attrs_and_block()?; attrs.extend(iattrs); |