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-rw-r--r--js/src/frontend/Parser.cpp21
-rw-r--r--js/src/frontend/Parser.h7
-rw-r--r--js/src/jsapi-tests/moz.build1
-rw-r--r--js/src/jsapi-tests/testFunctionBinding.cpp58
-rw-r--r--js/src/tests/ecma_6/Function/constructor-binding.js11
5 files changed, 85 insertions, 13 deletions
diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp
index a7b1f3a14..c86d9ca7b 100644
--- a/js/src/frontend/Parser.cpp
+++ b/js/src/frontend/Parser.cpp
@@ -2173,7 +2173,7 @@ Parser<ParseHandler>::declareDotGeneratorName()
template <typename ParseHandler>
bool
-Parser<ParseHandler>::finishFunctionScopes()
+Parser<ParseHandler>::finishFunctionScopes(bool isStandaloneFunction)
{
FunctionBox* funbox = pc->functionBox();
@@ -2182,7 +2182,7 @@ Parser<ParseHandler>::finishFunctionScopes()
return false;
}
- if (funbox->function()->isNamedLambda()) {
+ if (funbox->function()->isNamedLambda() && !isStandaloneFunction) {
if (!propagateFreeNamesAndMarkClosedOverBindings(pc->namedLambdaScope()))
return false;
}
@@ -2192,9 +2192,9 @@ Parser<ParseHandler>::finishFunctionScopes()
template <>
bool
-Parser<FullParseHandler>::finishFunction()
+Parser<FullParseHandler>::finishFunction(bool isStandaloneFunction /* = false */)
{
- if (!finishFunctionScopes())
+ if (!finishFunctionScopes(isStandaloneFunction))
return false;
FunctionBox* funbox = pc->functionBox();
@@ -2215,7 +2215,7 @@ Parser<FullParseHandler>::finishFunction()
funbox->functionScopeBindings().set(*bindings);
}
- if (funbox->function()->isNamedLambda()) {
+ if (funbox->function()->isNamedLambda() && !isStandaloneFunction) {
Maybe<LexicalScope::Data*> bindings = newLexicalScopeData(pc->namedLambdaScope());
if (!bindings)
return false;
@@ -2227,14 +2227,14 @@ Parser<FullParseHandler>::finishFunction()
template <>
bool
-Parser<SyntaxParseHandler>::finishFunction()
+Parser<SyntaxParseHandler>::finishFunction(bool isStandaloneFunction /* = false */)
{
// The LazyScript for a lazily parsed function needs to know its set of
// free variables and inner functions so that when it is fully parsed, we
// can skip over any already syntax parsed inner functions and still
// retain correct scope information.
- if (!finishFunctionScopes())
+ if (!finishFunctionScopes(isStandaloneFunction))
return false;
// There are too many bindings or inner functions to be saved into the
@@ -2354,7 +2354,7 @@ Parser<FullParseHandler>::standaloneFunction(HandleFunction fun,
YieldHandling yieldHandling = GetYieldHandling(generatorKind, asyncKind);
AutoAwaitIsKeyword awaitIsKeyword(&tokenStream, asyncKind == AsyncFunction);
if (!functionFormalParametersAndBody(InAllowed, yieldHandling, fn, Statement,
- parameterListEnd))
+ parameterListEnd, /* isStandaloneFunction = */ true))
{
return null();
}
@@ -3425,7 +3425,8 @@ bool
Parser<ParseHandler>::functionFormalParametersAndBody(InHandling inHandling,
YieldHandling yieldHandling,
Node pn, FunctionSyntaxKind kind,
- Maybe<uint32_t> parameterListEnd /* = Nothing() */)
+ Maybe<uint32_t> parameterListEnd /* = Nothing() */,
+ bool isStandaloneFunction /* = false */)
{
// Given a properly initialized parse context, try to parse an actual
// function without concern for conversion to strict mode, use of lazy
@@ -3533,7 +3534,7 @@ Parser<ParseHandler>::functionFormalParametersAndBody(InHandling inHandling,
if (IsMethodDefinitionKind(kind) && pc->superScopeNeedsHomeObject())
funbox->setNeedsHomeObject();
- if (!finishFunction())
+ if (!finishFunction(isStandaloneFunction))
return false;
handler.setEndPosition(body, pos().begin);
diff --git a/js/src/frontend/Parser.h b/js/src/frontend/Parser.h
index 41abb6d76..f6cff8a6c 100644
--- a/js/src/frontend/Parser.h
+++ b/js/src/frontend/Parser.h
@@ -1070,7 +1070,8 @@ class Parser final : private JS::AutoGCRooter, public StrictModeGetter
// ParseContext is already on the stack.
bool functionFormalParametersAndBody(InHandling inHandling, YieldHandling yieldHandling,
Node pn, FunctionSyntaxKind kind,
- mozilla::Maybe<uint32_t> parameterListEnd = mozilla::Nothing());
+ mozilla::Maybe<uint32_t> parameterListEnd = mozilla::Nothing(),
+ bool isStandaloneFunction = false);
// Determine whether |yield| is a valid name in the current context, or
@@ -1350,8 +1351,8 @@ class Parser final : private JS::AutoGCRooter, public StrictModeGetter
GeneratorKind generatorKind, FunctionAsyncKind asyncKind,
bool tryAnnexB,
Directives inheritedDirectives, Directives* newDirectives);
- bool finishFunctionScopes();
- bool finishFunction();
+ bool finishFunctionScopes(bool isStandaloneFunction);
+ bool finishFunction(bool isStandaloneFunction = false);
bool leaveInnerFunction(ParseContext* outerpc);
bool matchOrInsertSemicolonHelper(TokenStream::Modifier modifier);
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)
diff --git a/js/src/tests/ecma_6/Function/constructor-binding.js b/js/src/tests/ecma_6/Function/constructor-binding.js
new file mode 100644
index 000000000..e82274d27
--- /dev/null
+++ b/js/src/tests/ecma_6/Function/constructor-binding.js
@@ -0,0 +1,11 @@
+var BUGNUMBER = 636635;
+var summary = "A function created by Function constructor shouldn't have anonymous binding";
+
+print(BUGNUMBER + ": " + summary);
+
+assertEq(new Function("return typeof anonymous")(), "undefined");
+assertEq(new Function("return function() { return typeof anonymous; }")()(), "undefined");
+assertEq(new Function("return function() { eval(''); return typeof anonymous; }")()(), "undefined");
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 07:43:44 +0000