From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 .../block-scoped-functions-deprecated-redecl.js    | 78 ++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 js/src/tests/ecma_6/LexicalEnvironment/block-scoped-functions-deprecated-redecl.js

(limited to 'js/src/tests/ecma_6/LexicalEnvironment/block-scoped-functions-deprecated-redecl.js')

diff --git a/js/src/tests/ecma_6/LexicalEnvironment/block-scoped-functions-deprecated-redecl.js b/js/src/tests/ecma_6/LexicalEnvironment/block-scoped-functions-deprecated-redecl.js
new file mode 100644
index 000000000..af32be5d3
--- /dev/null
+++ b/js/src/tests/ecma_6/LexicalEnvironment/block-scoped-functions-deprecated-redecl.js
@@ -0,0 +1,78 @@
+{
+  assertEq(f(), 4);
+  function f() { return 3; }
+  assertEq(f(), 4);
+  function f() { return 4; }
+  assertEq(f(), 4);
+}
+
+// Annex B still works.
+assertEq(f(), 4);
+
+// The same thing with labels.
+{
+  assertEq(f(), 4);
+  function f() { return 3; }
+  assertEq(f(), 4);
+  l: function f() { return 4; }
+  assertEq(f(), 4);
+}
+
+// Annex B still works.
+assertEq(f(), 4);
+
+function test() {
+  {
+    assertEq(f(), 2);
+    function f() { return 1; }
+    assertEq(f(), 2);
+    function f() { return 2; }
+    assertEq(f(), 2);
+  }
+
+  // Annex B still works.
+  assertEq(f(), 2);
+}
+
+test();
+
+var log = '';
+
+try {
+  // Strict mode still cannot redeclare.
+  eval(`"use strict";
+  {
+    function f() { }
+    function f() { }
+  }`);
+} catch (e) {
+  assertEq(e instanceof SyntaxError, true);
+  log += 'e';
+}
+
+try {
+  // Redeclaring an explicitly 'let'-declared binding doesn't work.
+  eval(`{
+    let x = 42;
+    function x() {}
+  }`);
+} catch (e) {
+  assertEq(e instanceof SyntaxError, true);
+  log += 'e';
+}
+
+try {
+  // Redeclaring an explicitly 'const'-declared binding doesn't work.
+  eval(`{
+    const x = 42;
+    function x() {}
+  }`);
+} catch (e) {
+  assertEq(e instanceof SyntaxError, true);
+  log += 'e';
+}
+
+assertEq(log, 'eee');
+
+if ('reportCompare' in this)
+  reportCompare(true, true);
-- 
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