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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/bindings/frozen_array_base.h"
#include "third_party/blink/renderer/platform/bindings/dom_data_store.h"
#include "third_party/blink/renderer/platform/bindings/dom_wrapper_world.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
namespace blink::bindings {
namespace {
const WrapperTypeInfo frozen_array_wrapper_type_info_{
gin::kEmbedderBlink,
// JS objects for IDL frozen array types are implemented as JS Arrays,
// which don't support V8 internal fields. Neither v8::FunctionTemplate nor
// v8::ObjectTemplate is used.
nullptr, // install_interface_template_func
nullptr, // install_context_dependent_props_func
"FrozenArray",
nullptr, // parent_class
kDOMWrappersTag,
kDOMWrappersTag,
WrapperTypeInfo::kWrapperTypeNoPrototype,
WrapperTypeInfo::kNoInternalFieldClassId,
WrapperTypeInfo::kIdlOtherType,
};
} // namespace
// We don't use the bindings code generator for IDL FrozenArray, so we define
// FrozenArrayBase::wrapper_type_info_ manually here.
const WrapperTypeInfo& FrozenArrayBase::wrapper_type_info_ =
frozen_array_wrapper_type_info_;
v8::Local<v8::Value> FrozenArrayBase::ToV8(ScriptState* script_state) const {
return const_cast<FrozenArrayBase*>(this)->ToV8(script_state);
}
v8::Local<v8::Value> FrozenArrayBase::ToV8(ScriptState* script_state) {
v8::Local<v8::Object> wrapper;
if (DOMDataStore::GetWrapper(script_state, this).ToLocal(&wrapper))
[[likely]] {
return wrapper;
}
return Wrap(script_state);
}
v8::Local<v8::Value> FrozenArrayBase::Wrap(ScriptState* script_state) {
DCHECK(!DOMDataStore::ContainsWrapper(script_state->GetIsolate(), this));
v8::Local<v8::Value> wrapper = MakeV8ArrayToBeFrozen(script_state);
wrapper.As<v8::Object>()->SetIntegrityLevel(script_state->GetContext(),
v8::IntegrityLevel::kFrozen);
return AssociateWithWrapper(script_state->GetIsolate(), GetWrapperTypeInfo(),
wrapper.As<v8::Object>());
}
v8::Local<v8::Object> FrozenArrayBase::AssociateWithWrapper(
v8::Isolate* isolate,
const WrapperTypeInfo* wrapper_type_info,
v8::Local<v8::Object> wrapper) {
// Since v8::Array doesn't have an internal field, just set the wrapper to
// the DOMDataStore and never call V8DOMWrapper::SetNativeInfo unlike regular
// ScriptWrappables.
CHECK(DOMDataStore::SetWrapper(isolate, this, GetWrapperTypeInfo(), wrapper));
return wrapper;
}
} // namespace blink::bindings
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