1 files changed, 114 insertions, 0 deletions
diff --git a/js/src/tests/non262/lexical-environment/var-in-catch-body-annex-b.js b/js/src/tests/non262/lexical-environment/var-in-catch-body-annex-b.js
new file mode 100644
index 0000000000..6e6a24f213
--- /dev/null
+++ b/js/src/tests/non262/lexical-environment/var-in-catch-body-annex-b.js
@@ -0,0 +1,114 @@
+// Tests annex B.3.5.
+
+assertThrowsInstanceOf(function () {
+  eval(`
+       function f() {
+         let x;
+         try {} catch (x) {
+           var x;
+         }
+       }
+       `);
+}, SyntaxError);
+
+assertThrowsInstanceOf(function () {
+  eval(`
+       function f() {
+         try {} catch (x) {
+           let y;
+           var y;
+         }
+       }
+       `);
+}, SyntaxError);
+
+assertThrowsInstanceOf(function () {
+  eval(`
+       function f() {
+         try {} catch (x) {
+           let x;
+         }
+       }
+       `);
+}, SyntaxError);
+
+assertThrowsInstanceOf(function () {
+  eval(`
+       function f() {
+         try {} catch (x) {
+           const x;
+         }
+       }
+       `);
+}, SyntaxError);
+
+// Tests that redeclaring a var inside the catch is not allowed if there's a
+// body-level lexical.
+assertThrowsInstanceOf(function () {
+  eval(`
+    let x;
+    try {} catch (x) {
+      var x;
+    }
+    `);
+}, SyntaxError);
+
+var log = '';
+var x = 'global-x';
+
+function g() {
+  x = 'g';
+  try { throw 8; } catch (x) {
+    var x = 42;
+    log += x;
+  }
+  log += x;
+}
+g();
+
+// Tests that var declaration is allowed in for-in head.
+function h0() {
+  try {} catch (e) {
+    for (var e in {});
+  }
+}
+h0();
+
+// Tests that var declaration is allowed in C-for head.
+function h1() {
+  try {} catch (e) {
+    for (var e;;);
+  }
+}
+h1();
+
+// Tests that var declaration is allowed in for-of head.
+function h2() {
+  try {} catch (e) {
+    for (var e of {});
+  }
+}
+h2();
+
+// Tests that redeclaring a var inside the catch is allowed.
+function h3() {
+  var e;
+  try {} catch (e) {
+    var e;
+  }
+}
+h3();
+
+if (typeof evaluate === "function") {
+  assertThrowsInstanceOf(function () {
+    evaluate(`
+             let y;
+             try {} catch (y) { var y; }
+             `);
+  }, SyntaxError);
+}
+
+assertEq(log, "42g");
+
+if ("reportCompare" in this)
+  reportCompare(true, true)