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runtime-proxy.cc
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123 lines (101 loc) · 4.01 KB
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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/execution/arguments-inl.h"
#include "src/execution/isolate-inl.h"
#include "src/heap/factory.h"
#include "src/heap/heap-inl.h" // For ToBoolean. TODO(jkummerow): Drop.
#include "src/objects/objects-inl.h"
namespace v8 {
namespace internal {
RUNTIME_FUNCTION(Runtime_IsJSProxy) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
Tagged<Object> obj = args[0];
return isolate->heap()->ToBoolean(IsJSProxy(obj));
}
RUNTIME_FUNCTION(Runtime_JSProxyGetHandler) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
auto proxy = Cast<JSProxy>(args[0]);
return proxy->handler();
}
RUNTIME_FUNCTION(Runtime_JSProxyGetTarget) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
auto proxy = Cast<JSProxy>(args[0]);
return proxy->target();
}
RUNTIME_FUNCTION(Runtime_GetPropertyWithReceiver) {
HandleScope scope(isolate);
DCHECK_EQ(4, args.length());
DirectHandle<JSReceiver> holder = args.at<JSReceiver>(0);
Handle<Object> key = args.at(1);
DirectHandle<JSAny> receiver = args.at<JSAny>(2);
// TODO(mythria): Remove the on_non_existent parameter to this function. This
// should only be called when getting named properties on receiver. This
// doesn't handle the global variable loads.
#ifdef DEBUG
int on_non_existent = args.smi_value_at(3);
DCHECK_NE(static_cast<OnNonExistent>(on_non_existent),
OnNonExistent::kThrowReferenceError);
#endif
bool success = false;
PropertyKey lookup_key(isolate, key, &success);
if (!success) {
DCHECK(isolate->has_exception());
return ReadOnlyRoots(isolate).exception();
}
LookupIterator it(isolate, receiver, lookup_key, holder);
RETURN_RESULT_OR_FAILURE(isolate, Object::GetProperty(&it));
}
RUNTIME_FUNCTION(Runtime_SetPropertyWithReceiver) {
HandleScope scope(isolate);
DCHECK_EQ(4, args.length());
DirectHandle<JSReceiver> holder = args.at<JSReceiver>(0);
Handle<Object> key = args.at(1);
DirectHandle<Object> value = args.at(2);
DirectHandle<JSAny> receiver = args.at<JSAny>(3);
bool success = false;
PropertyKey lookup_key(isolate, key, &success);
if (!success) {
DCHECK(isolate->has_exception());
return ReadOnlyRoots(isolate).exception();
}
LookupIterator it(isolate, receiver, lookup_key, holder);
Maybe<bool> result =
Object::SetSuperProperty(&it, value, StoreOrigin::kMaybeKeyed);
MAYBE_RETURN(result, ReadOnlyRoots(isolate).exception());
return *isolate->factory()->ToBoolean(result.FromJust());
}
RUNTIME_FUNCTION(Runtime_CheckProxyGetSetTrapResult) {
HandleScope scope(isolate);
DCHECK_EQ(4, args.length());
DirectHandle<Name> name = args.at<Name>(0);
DirectHandle<JSReceiver> target = args.at<JSReceiver>(1);
DirectHandle<Object> trap_result = args.at(2);
int64_t access_kind = NumberToInt64(args[3]);
RETURN_RESULT_OR_FAILURE(isolate, JSProxy::CheckGetSetTrapResult(
isolate, name, target, trap_result,
JSProxy::AccessKind(access_kind)));
}
RUNTIME_FUNCTION(Runtime_CheckProxyHasTrapResult) {
HandleScope scope(isolate);
DCHECK_EQ(2, args.length());
DirectHandle<Name> name = args.at<Name>(0);
DirectHandle<JSReceiver> target = args.at<JSReceiver>(1);
Maybe<bool> result = JSProxy::CheckHasTrap(isolate, name, target);
if (!result.IsJust()) return ReadOnlyRoots(isolate).exception();
return isolate->heap()->ToBoolean(result.FromJust());
}
RUNTIME_FUNCTION(Runtime_CheckProxyDeleteTrapResult) {
HandleScope scope(isolate);
DCHECK_EQ(2, args.length());
DirectHandle<Name> name = args.at<Name>(0);
DirectHandle<JSReceiver> target = args.at<JSReceiver>(1);
Maybe<bool> result = JSProxy::CheckDeleteTrap(isolate, name, target);
if (!result.IsJust()) return ReadOnlyRoots(isolate).exception();
return isolate->heap()->ToBoolean(result.FromJust());
}
} // namespace internal
} // namespace v8