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deps: cherry-pick 0ba513f05 from V8 upstream

Original commit message:
  [api] Fix DescriptorInterceptor with access check.

  The DescriptorInterceptor should intercept all
  Object.getOwnPropertyDescriptor calls. This CL fixes
  the interceptor's behavior if the iterator state is
  ACCESS_CHECK.

  BUG=

  Review-Url: https://codereview.chromium.org/2707263002
  Cr-Commit-Position: refs/heads/master@{#43417}

PR-URL: #11712
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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fhinkel authored and targos committed Mar 6, 2017
1 parent fcc58bf commit 3471d6312df83151b7132841fcc76752ee4adf12
Showing with 58 additions and 7 deletions.
  1. +8 −1 deps/v8/src/objects.cc
  2. +50 −6 deps/v8/test/cctest/test-api-interceptors.cc
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@@ -7008,7 +7008,13 @@ namespace {
Maybe<bool> GetPropertyDescriptorWithInterceptor(LookupIterator* it,
PropertyDescriptor* desc) {
if (it->state() == LookupIterator::INTERCEPTOR) {
bool has_access = true;
if (it->state() == LookupIterator::ACCESS_CHECK) {
has_access = it->HasAccess() || JSObject::AllCanRead(it);
it->Next();
}
if (has_access && it->state() == LookupIterator::INTERCEPTOR) {
Isolate* isolate = it->isolate();
Handle<InterceptorInfo> interceptor = it->GetInterceptor();
if (!interceptor->descriptor()->IsUndefined(isolate)) {
@@ -7052,6 +7058,7 @@ Maybe<bool> GetPropertyDescriptorWithInterceptor(LookupIterator* it,
}
}
}
it->Restart();
return Just(false);
}
} // namespace
@@ -607,6 +607,50 @@ THREADED_TEST(SetterCallbackFunctionDeclarationInterceptorThrow) {
CHECK_EQ(set_was_called, false);
}
namespace {
int descriptor_was_called;
void PropertyDescriptorCallback(
Local<Name> name, const v8::PropertyCallbackInfo<v8::Value>& info) {
// Intercept the callback by setting a different descriptor.
descriptor_was_called++;
const char* code =
"var desc = {value: 5};"
"desc;";
Local<Value> descriptor = v8_compile(code)
->Run(info.GetIsolate()->GetCurrentContext())
.ToLocalChecked();
info.GetReturnValue().Set(descriptor);
}
} // namespace
// Check that the descriptor callback is called on the global object.
THREADED_TEST(DescriptorCallbackOnGlobalObject) {
v8::HandleScope scope(CcTest::isolate());
LocalContext env;
v8::Local<v8::FunctionTemplate> templ =
v8::FunctionTemplate::New(CcTest::isolate());
v8::Local<ObjectTemplate> object_template = templ->InstanceTemplate();
object_template->SetHandler(v8::NamedPropertyHandlerConfiguration(
nullptr, nullptr, PropertyDescriptorCallback, nullptr, nullptr, nullptr));
v8::Local<v8::Context> ctx =
v8::Context::New(CcTest::isolate(), nullptr, object_template);
descriptor_was_called = 0;
// Declare function.
v8::Local<v8::String> code = v8_str(
"var x = 42; var desc = Object.getOwnPropertyDescriptor(this, 'x'); "
"desc.value;");
CHECK_EQ(5, v8::Script::Compile(ctx, code)
.ToLocalChecked()
->Run(ctx)
.ToLocalChecked()
->Int32Value(ctx)
.FromJust());
CHECK_EQ(1, descriptor_was_called);
}
namespace {
@@ -4578,7 +4622,7 @@ TEST(NamedAllCanReadInterceptor) {
ExpectInt32("checked.whatever", 17);
CHECK(!CompileRun("Object.getOwnPropertyDescriptor(checked, 'whatever')")
->IsUndefined());
CHECK_EQ(5, access_check_data.count);
CHECK_EQ(6, access_check_data.count);
access_check_data.result = false;
ExpectInt32("checked.whatever", intercept_data_0.value);
@@ -4587,7 +4631,7 @@ TEST(NamedAllCanReadInterceptor) {
CompileRun("Object.getOwnPropertyDescriptor(checked, 'whatever')");
CHECK(try_catch.HasCaught());
}
CHECK_EQ(7, access_check_data.count);
CHECK_EQ(9, access_check_data.count);
intercept_data_1.should_intercept = true;
ExpectInt32("checked.whatever", intercept_data_1.value);
@@ -4596,7 +4640,7 @@ TEST(NamedAllCanReadInterceptor) {
CompileRun("Object.getOwnPropertyDescriptor(checked, 'whatever')");
CHECK(try_catch.HasCaught());
}
CHECK_EQ(9, access_check_data.count);
CHECK_EQ(12, access_check_data.count);
g_access_check_data = nullptr;
}
@@ -4665,7 +4709,7 @@ TEST(IndexedAllCanReadInterceptor) {
ExpectInt32("checked[15]", 17);
CHECK(!CompileRun("Object.getOwnPropertyDescriptor(checked, '15')")
->IsUndefined());
CHECK_EQ(5, access_check_data.count);
CHECK_EQ(6, access_check_data.count);
access_check_data.result = false;
ExpectInt32("checked[15]", intercept_data_0.value);
@@ -4674,7 +4718,7 @@ TEST(IndexedAllCanReadInterceptor) {
CompileRun("Object.getOwnPropertyDescriptor(checked, '15')");
CHECK(try_catch.HasCaught());
}
CHECK_EQ(7, access_check_data.count);
CHECK_EQ(9, access_check_data.count);
intercept_data_1.should_intercept = true;
ExpectInt32("checked[15]", intercept_data_1.value);
@@ -4683,7 +4727,7 @@ TEST(IndexedAllCanReadInterceptor) {
CompileRun("Object.getOwnPropertyDescriptor(checked, '15')");
CHECK(try_catch.HasCaught());
}
CHECK_EQ(9, access_check_data.count);
CHECK_EQ(12, access_check_data.count);
g_access_check_data = nullptr;
}

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