636635 - Do not create named lambda binding for a function created by Function constructor.

2 files changed, 59 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/moz.build b/js/src/jsapi-tests/moz.build
index 277a145b0..c176fbf0a 100644
--- a/js/src/jsapi-tests/moz.build
+++ b/js/src/jsapi-tests/moz.build
@@ -37,6 +37,7 @@ UNIFIED_SOURCES += [
     'testForOfIterator.cpp',
     'testForwardSetProperty.cpp',
     'testFreshGlobalEvalRedefinition.cpp',
+    'testFunctionBinding.cpp',
     'testFunctionProperties.cpp',
     'testGCAllocator.cpp',
     'testGCCellPtr.cpp',
diff --git a/js/src/jsapi-tests/testFunctionBinding.cpp b/js/src/jsapi-tests/testFunctionBinding.cpp
new file mode 100644
index 000000000..33632db14
--- /dev/null
+++ b/js/src/jsapi-tests/testFunctionBinding.cpp
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ *
+ * Test function name binding.
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsfriendapi.h"
+
+#include "jsapi-tests/tests.h"
+
+using namespace js;
+
+BEGIN_TEST(test_functionBinding)
+{
+    RootedFunction fun(cx);
+
+    JS::CompileOptions options(cx);
+    options.setFileAndLine(__FILE__, __LINE__);
+
+    // Named function shouldn't have it's binding.
+    const char s1chars[] = "return (typeof s1) == 'undefined';";
+    JS::AutoObjectVector emptyScopeChain(cx);
+    CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "s1", 0, nullptr, s1chars,
+                              strlen(s1chars), &fun));
+    CHECK(fun);
+
+    JS::AutoValueVector args(cx);
+    RootedValue rval(cx);
+    CHECK(JS::Call(cx, UndefinedHandleValue, fun, args, &rval));
+    CHECK(rval.isBoolean());
+    CHECK(rval.toBoolean());
+
+    // Named function shouldn't have `anonymous` binding.
+    const char s2chars[] = "return (typeof anonymous) == 'undefined';";
+    CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "s2", 0, nullptr, s2chars,
+                              strlen(s2chars), &fun));
+    CHECK(fun);
+
+    CHECK(JS::Call(cx, UndefinedHandleValue, fun, args, &rval));
+    CHECK(rval.isBoolean());
+    CHECK(rval.toBoolean());
+
+    // Anonymous function shouldn't have `anonymous` binding.
+    const char s3chars[] = "return (typeof anonymous) == 'undefined';";
+    CHECK(JS::CompileFunction(cx, emptyScopeChain, options, nullptr, 0, nullptr, s3chars,
+                              strlen(s3chars), &fun));
+    CHECK(fun);
+
+    CHECK(JS::Call(cx, UndefinedHandleValue, fun, args, &rval));
+    CHECK(rval.isBoolean());
+    CHECK(rval.toBoolean());
+
+    return true;
+}
+END_TEST(test_functionBinding)