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| author | griesemer <gri@golang.org> | 2017-11-06 15:01:33 -0800 |
|---|---|---|
| committer | Robert Griesemer <gri@golang.org> | 2017-11-06 23:17:24 +0000 |
| commit | 17ff23f7c8d6a3310e1fa59fced2fc584b68ac7c (patch) | |
| tree | 0b4cf985ec1b791c3e11db7ce85a54de56d094e7 /src/cmd/compile/internal/syntax/parser.go | |
| parent | be943df58860e7dec008ebb8d68428d54e311b94 (diff) | |
| download | go-17ff23f7c8d6a3310e1fa59fced2fc584b68ac7c.tar.xz | |
cmd/compile/internal/syntax: better syntax errors for typos in if/switch/for headers
Be more pessimistic when parsing if/switch/for headers for better error
messages when things go wrong.
Fixes #22581.
Change-Id: Ibb99925291ff53f35021bc0a59a4c9a7f695a194
Reviewed-on: https://go-review.googlesource.com/76290
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Diffstat (limited to 'src/cmd/compile/internal/syntax/parser.go')
| -rw-r--r-- | src/cmd/compile/internal/syntax/parser.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cmd/compile/internal/syntax/parser.go b/src/cmd/compile/internal/syntax/parser.go index 8e47d8e723..7047266a70 100644 --- a/src/cmd/compile/internal/syntax/parser.go +++ b/src/cmd/compile/internal/syntax/parser.go @@ -1766,10 +1766,10 @@ func (p *parser) header(keyword token) (init SimpleStmt, cond Expr, post SimpleS pos src.Pos lit string // valid if pos.IsKnown() } - if p.tok == _Semi { + if p.tok != _Lbrace { semi.pos = p.pos() semi.lit = p.lit - p.next() + p.want(_Semi) if keyword == _For { if p.tok != _Semi { if p.tok == _Lbrace { |