Allow semicolon in nested do-while statements. (#463)

In nested do-while statements, a semicolon after the inner `while` threw a parsing error. This change checks for the optional semicolon. Co-authored-by: Brian Graham <bcgraham+github@gmail.com>
robertkrimen · Nov 28, 2022 · a5b0ade · a5b0ade
1 parent 762556b
commit a5b0ade
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 0 deletions.
diff --git a/parser/parser_test.go b/parser/parser_test.go
@@ -617,6 +617,8 @@ func TestParser(t *testing.T) {
             } while (0)
         `, nil)
 
+		test(`do do; while(0); while(0);`, nil)
+
 		test(`
             (function(){
                 try {

diff --git a/parser/statement.go b/parser/statement.go
@@ -694,6 +694,9 @@ func (self *_parser) parseDoWhileStatement() ast.Statement {
 	node.Test = self.parseExpression()
 	self.expect(token.RIGHT_PARENTHESIS)
 
+	self.implicitSemicolon = true
+	self.optionalSemicolon()
+
 	if self.mode&StoreComments != 0 {
 		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
 		self.comments.CommentMap.AddComments(node, doComments, ast.DO)