1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/syntax-1.js b/js/src/jit-test/tests/for-of/syntax-1.js
new file mode 100644
index 0000000000..7cc393ec12
--- /dev/null
+++ b/js/src/jit-test/tests/for-of/syntax-1.js
@@ -0,0 +1,20 @@
+// We correctly reject bogus for-of loop syntax.
+
+load(libdir + "asserts.js");
+
+function assertSyntaxError(code) {
+    assertThrowsInstanceOf(function () { Function(code); }, SyntaxError, "Function:" + code);
+    assertThrowsInstanceOf(function () { eval(code); }, SyntaxError, "eval:" + code);
+    var ieval = eval;
+    assertThrowsInstanceOf(function () { ieval(code); }, SyntaxError, "indirect eval:" + code);
+}
+
+function test(badForHead) {
+    assertSyntaxError(badForHead + " {}");  // apply directly to forHead
+    assertSyntaxError("[0 " + badForHead + "];");
+}
+
+var a, b, c;
+test("for (a in b of c)");
+test("for (a of b of c)");
+test("for (let {a: 1} of b)");