Verify that there is an actual destination to break or continue to.
for (var i = 0; i < labels.length; ++i) {
var lab = labels[i];
- if ((node.label == null || lab.name === node.label.name) &&
- lab.kind != null && (isBreak || lab.kind === "loop")) break;
+ if (node.label == null || lab.name === node.label.name) {
+ if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
+ if (node.label && isBreak) break;
+ }
}
if (i === labels.length) raise(node.start, "Unsyntactic " + starttype.keyword);
return finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
diff --git a/packages/babylon/test/tests.js b/packages/babylon/test/tests.js
index 83ff7ec82363..4dbbe7fd73c8 100644
--- a/packages/babylon/test/tests.js
+++ b/packages/babylon/test/tests.js
@@ -25724,6 +25724,118 @@ test("", {
}
});
+test("foo: if (true) break foo;", {
+ type: "Program",
+ start: 0,
+ end: 25,
+ loc: {
+ start: {
+ line: 1,
+ column: 0
+ },
+ end: {
+ line: 1,
+ column: 25
+ }
+ },
+ body: [
+ {
+ type: "LabeledStatement",
+ start: 0,
+ end: 25,
+ loc: {
+ start: {
+ line: 1,
+ column: 0
+ },
+ end: {
+ line: 1,
+ column: 25
+ }
+ },
+ body: {
+ type: "IfStatement",
+ start: 5,
+ end: 25,
+ loc: {
+ start: {
+ line: 1,
+ column: 5
+ },
+ end: {
+ line: 1,
+ column: 25
+ }
+ },
+ test: {
+ type: "Literal",
+ start: 9,
+ end: 13,
+ loc: {
+ start: {
+ line: 1,
+ column: 9
+ },
+ end: {
+ line: 1,
+ column: 13
+ }
+ },
+ value: true
+ },
+ consequent: {
+ type: "BreakStatement",
+ start: 15,
+ end: 25,
+ loc: {
+ start: {
+ line: 1,
+ column: 15
+ },
+ end: {
+ line: 1,
+ column: 25
+ }
+ },
+ label: {
+ type: "Identifier",
+ start: 21,
+ end: 24,
+ loc: {
+ start: {
+ line: 1,
+ column: 21
+ },
+ end: {
+ line: 1,
+ column: 24
+ }
+ },
+ name: "foo"
+ }
+ },
+ alternate: null
+ },
+ label: {
+ type: "Identifier",
+ start: 0,
+ end: 3,
+ loc: {
+ start: {
+ line: 1,
+ column: 0
+ },
+ end: {
+ line: 1,
+ column: 3
+ }
+ },
+ name: "foo"
+ }
+ }
+ ]
+});
+
// Failure tests
testFail("{",