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deps: cherry-pick e1a7699 from upstream V8
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Original commit message:

    [api][runtime]  Support all-in ctors of {Named,Indexed}PropertyHandlerConfiguration

    - Explicitly allows construction of
    {Named,Indexed}PropertyHandlerConfiguration with all the members filled.

    Bug: v8:7612
    Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
    Change-Id: I426ea33846b5dbf2b3482c722c963a6e4b0abded
    Reviewed-on: https://chromium-review.googlesource.com/1163882
    Reviewed-by: Toon Verwaest <verwaest@chromium.org>
    Reviewed-by: Adam Klein <adamk@chromium.org>
    Commit-Queue: Camillo Bruni <cbruni@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#55142}

PR-URL: #22390
Fixes: #17480
Fixes: #17481
Refs: v8/v8@e1a7699
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
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@camillobruni @targos
camillobruni authored and targos committed Sep 3, 2018
1 parent 0fde4e9 commit 221ce6c
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Showing 5 changed files with 248 additions and 36 deletions.
2 changes: 1 addition & 1 deletion common.gypi
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@

# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.16',
'v8_embedder_string': '-node.17',

# Enable disassembler for `--print-code` v8 options
'v8_enable_disassembler': 1,
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39 changes: 39 additions & 0 deletions deps/v8/include/v8.h
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Expand Up @@ -5782,6 +5782,26 @@ enum class PropertyHandlerFlags {
};

struct NamedPropertyHandlerConfiguration {
NamedPropertyHandlerConfiguration(
GenericNamedPropertyGetterCallback getter,
GenericNamedPropertySetterCallback setter,
GenericNamedPropertyQueryCallback query,
GenericNamedPropertyDeleterCallback deleter,
GenericNamedPropertyEnumeratorCallback enumerator,
GenericNamedPropertyDefinerCallback definer,
GenericNamedPropertyDescriptorCallback descriptor,
Local<Value> data = Local<Value>(),
PropertyHandlerFlags flags = PropertyHandlerFlags::kNone)
: getter(getter),
setter(setter),
query(query),
deleter(deleter),
enumerator(enumerator),
definer(definer),
descriptor(descriptor),
data(data),
flags(flags) {}

NamedPropertyHandlerConfiguration(
/** Note: getter is required */
GenericNamedPropertyGetterCallback getter = 0,
Expand Down Expand Up @@ -5833,6 +5853,25 @@ struct NamedPropertyHandlerConfiguration {


struct IndexedPropertyHandlerConfiguration {
IndexedPropertyHandlerConfiguration(
IndexedPropertyGetterCallback getter,
IndexedPropertySetterCallback setter, IndexedPropertyQueryCallback query,
IndexedPropertyDeleterCallback deleter,
IndexedPropertyEnumeratorCallback enumerator,
IndexedPropertyDefinerCallback definer,
IndexedPropertyDescriptorCallback descriptor,
Local<Value> data = Local<Value>(),
PropertyHandlerFlags flags = PropertyHandlerFlags::kNone)
: getter(getter),
setter(setter),
query(query),
deleter(deleter),
enumerator(enumerator),
definer(definer),
descriptor(descriptor),
data(data),
flags(flags) {}

IndexedPropertyHandlerConfiguration(
/** Note: getter is required */
IndexedPropertyGetterCallback getter = 0,
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4 changes: 0 additions & 4 deletions deps/v8/src/api.cc
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Expand Up @@ -1803,10 +1803,6 @@ static i::Handle<i::InterceptorInfo> CreateInterceptorInfo(
i::Isolate* isolate, Getter getter, Setter setter, Query query,
Descriptor descriptor, Deleter remover, Enumerator enumerator,
Definer definer, Local<Value> data, PropertyHandlerFlags flags) {
// Either intercept attributes or descriptor.
DCHECK(query == nullptr || descriptor == nullptr);
// Only use descriptor callback with definer callback.
DCHECK(query == nullptr || definer == nullptr);
auto obj = i::Handle<i::InterceptorInfo>::cast(
isolate->factory()->NewStruct(i::INTERCEPTOR_INFO_TYPE, i::TENURED));
obj->set_flags(0);
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63 changes: 32 additions & 31 deletions deps/v8/src/objects.cc
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Expand Up @@ -7672,41 +7672,42 @@ Maybe<bool> GetPropertyDescriptorWithInterceptor(LookupIterator* it,
}
}

if (it->state() == LookupIterator::INTERCEPTOR) {
Isolate* isolate = it->isolate();
Handle<InterceptorInfo> interceptor = it->GetInterceptor();
if (!interceptor->descriptor()->IsUndefined(isolate)) {
Handle<Object> result;
Handle<JSObject> holder = it->GetHolder<JSObject>();
if (it->state() != LookupIterator::INTERCEPTOR) return Just(false);

Handle<Object> receiver = it->GetReceiver();
if (!receiver->IsJSReceiver()) {
ASSIGN_RETURN_ON_EXCEPTION_VALUE(
isolate, receiver, Object::ConvertReceiver(isolate, receiver),
Nothing<bool>());
}
Isolate* isolate = it->isolate();
Handle<InterceptorInfo> interceptor = it->GetInterceptor();
if (interceptor->descriptor()->IsUndefined(isolate)) return Just(false);

PropertyCallbackArguments args(isolate, interceptor->data(), *receiver,
*holder, kDontThrow);
if (it->IsElement()) {
result = args.CallIndexedDescriptor(interceptor, it->index());
} else {
result = args.CallNamedDescriptor(interceptor, it->name());
}
if (!result.is_null()) {
// Request successfully intercepted, try to set the property
// descriptor.
Utils::ApiCheck(
PropertyDescriptor::ToPropertyDescriptor(isolate, result, desc),
it->IsElement() ? "v8::IndexedPropertyDescriptorCallback"
: "v8::NamedPropertyDescriptorCallback",
"Invalid property descriptor.");
Handle<Object> result;
Handle<JSObject> holder = it->GetHolder<JSObject>();

return Just(true);
}
it->Next();
}
Handle<Object> receiver = it->GetReceiver();
if (!receiver->IsJSReceiver()) {
ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, receiver,
Object::ConvertReceiver(isolate, receiver),
Nothing<bool>());
}

PropertyCallbackArguments args(isolate, interceptor->data(), *receiver,
*holder, kDontThrow);
if (it->IsElement()) {
result = args.CallIndexedDescriptor(interceptor, it->index());
} else {
result = args.CallNamedDescriptor(interceptor, it->name());
}
if (!result.is_null()) {
// Request successfully intercepted, try to set the property
// descriptor.
Utils::ApiCheck(
PropertyDescriptor::ToPropertyDescriptor(isolate, result, desc),
it->IsElement() ? "v8::IndexedPropertyDescriptorCallback"
: "v8::NamedPropertyDescriptorCallback",
"Invalid property descriptor.");

return Just(true);
}

it->Next();
return Just(false);
}
} // namespace
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176 changes: 176 additions & 0 deletions deps/v8/test/unittests/api/interceptor-unittest.cc
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Expand Up @@ -29,4 +29,180 @@ TEST_F(InterceptorTest, FreezeApiObjectWithInterceptor) {
}

} // namespace

namespace internal {
namespace {

class InterceptorLoggingTest : public TestWithNativeContext {
public:
InterceptorLoggingTest() {}

static const int kTestIndex = 0;

static void NamedPropertyGetter(Local<v8::Name> name,
const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "named getter");
}

static void NamedPropertySetter(Local<v8::Name> name, Local<v8::Value> value,
const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "named setter");
}

static void NamedPropertyQuery(
Local<v8::Name> name, const v8::PropertyCallbackInfo<v8::Integer>& info) {
LogCallback(info, "named query");
}

static void NamedPropertyDeleter(
Local<v8::Name> name, const v8::PropertyCallbackInfo<v8::Boolean>& info) {
LogCallback(info, "named deleter");
}

static void NamedPropertyEnumerator(
const v8::PropertyCallbackInfo<Array>& info) {
LogCallback(info, "named enumerator");
}

static void NamedPropertyDefiner(
Local<v8::Name> name, const v8::PropertyDescriptor& desc,
const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "named definer");
}

static void NamedPropertyDescriptor(
Local<v8::Name> name, const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "named descriptor");
}

static void IndexedPropertyGetter(
uint32_t index, const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "indexed getter");
}

static void IndexedPropertySetter(
uint32_t index, Local<v8::Value> value,
const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "indexed setter");
}

static void IndexedPropertyQuery(
uint32_t index, const v8::PropertyCallbackInfo<v8::Integer>& info) {
LogCallback(info, "indexed query");
}

static void IndexedPropertyDeleter(
uint32_t index, const v8::PropertyCallbackInfo<v8::Boolean>& info) {
LogCallback(info, "indexed deleter");
}

static void IndexedPropertyEnumerator(
const v8::PropertyCallbackInfo<Array>& info) {
LogCallback(info, "indexed enumerator");
}

static void IndexedPropertyDefiner(
uint32_t index, const v8::PropertyDescriptor& desc,
const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "indexed definer");
}

static void IndexedPropertyDescriptor(
uint32_t index, const v8::PropertyCallbackInfo<Value>& info) {
LogCallback(info, "indexed descriptor");
}

template <class T>
static void LogCallback(const v8::PropertyCallbackInfo<T>& info,
const char* callback_name) {
InterceptorLoggingTest* test = reinterpret_cast<InterceptorLoggingTest*>(
info.This()->GetAlignedPointerFromInternalField(kTestIndex));
test->Log(callback_name);
}

void Log(const char* callback_name) {
if (log_is_empty_) {
log_is_empty_ = false;
} else {
log_ << ", ";
}
log_ << callback_name;
}

protected:
void SetUp() override {
// Set up the object that supports full interceptors.
v8::Local<v8::ObjectTemplate> templ = v8::ObjectTemplate::New(v8_isolate());
templ->SetInternalFieldCount(1);
templ->SetHandler(v8::NamedPropertyHandlerConfiguration(
NamedPropertyGetter, NamedPropertySetter, NamedPropertyQuery,
NamedPropertyDeleter, NamedPropertyEnumerator, NamedPropertyDefiner,
NamedPropertyDescriptor));
templ->SetHandler(v8::IndexedPropertyHandlerConfiguration(
IndexedPropertyGetter, IndexedPropertySetter, IndexedPropertyQuery,
IndexedPropertyDeleter, IndexedPropertyEnumerator,
IndexedPropertyDefiner, IndexedPropertyDescriptor));
v8::Local<v8::Object> instance =
templ->NewInstance(context()).ToLocalChecked();
instance->SetAlignedPointerInInternalField(kTestIndex, this);
SetGlobalProperty("obj", instance);
}

std::string Run(const char* script) {
log_is_empty_ = true;
log_.str(std::string());
log_.clear();

RunJS(script);
return log_.str();
}

private:
bool log_is_empty_ = false;
std::stringstream log_;
};

TEST_F(InterceptorLoggingTest, DispatchTest) {
EXPECT_EQ(Run("for (var p in obj) {}"),
"indexed enumerator, named enumerator");
EXPECT_EQ(Run("Object.keys(obj)"), "indexed enumerator, named enumerator");

EXPECT_EQ(Run("obj.foo"), "named getter");
EXPECT_EQ(Run("obj[42]"), "indexed getter");

EXPECT_EQ(Run("obj.foo = null"), "named setter");
EXPECT_EQ(Run("obj[42] = null"), "indexed setter");

EXPECT_EQ(Run("Object.getOwnPropertyDescriptor(obj, 'foo')"),
"named descriptor");

EXPECT_EQ(Run("Object.getOwnPropertyDescriptor(obj, 42)"),
"indexed descriptor");

EXPECT_EQ(Run("Object.defineProperty(obj, 'foo', {value: 42})"),
"named descriptor, named definer, named setter");
EXPECT_EQ(Run("Object.defineProperty(obj, 'foo', {get(){} })"),
"named descriptor, named definer");
EXPECT_EQ(Run("Object.defineProperty(obj, 'foo', {set(value){}})"),
"named descriptor, named definer");
EXPECT_EQ(Run("Object.defineProperty(obj, 'foo', {get(){}, set(value){}})"),
"named descriptor, named definer");

EXPECT_EQ(Run("Object.defineProperty(obj, 42, {value: 'foo'})"),
"indexed descriptor, "
// then attempt definer first and fallback to setter.
"indexed definer, indexed setter");

EXPECT_EQ(Run("Object.prototype.propertyIsEnumerable.call(obj, 'a')"),
"named query");
EXPECT_EQ(Run("Object.prototype.propertyIsEnumerable.call(obj, 42)"),
"indexed query");

EXPECT_EQ(Run("Object.prototype.hasOwnProperty.call(obj, 'a')"),
"named query");
// TODO(cbruni): Fix once hasOnwProperty is fixed (https://crbug.com/872628)
EXPECT_EQ(Run("Object.prototype.hasOwnProperty.call(obj, '42')"), "");
}
} // namespace
} // namespace internal
} // namespace v8

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