// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_API_INL_H_
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#define V8_API_INL_H_
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#include "src/api.h"
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#include "src/objects-inl.h"
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namespace v8 {
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template <typename T>
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inline T ToCData(v8::internal::Object* obj) {
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STATIC_ASSERT(sizeof(T) == sizeof(v8::internal::Address));
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if (obj == v8::internal::Smi::kZero) return nullptr;
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return reinterpret_cast<T>(
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v8::internal::Foreign::cast(obj)->foreign_address());
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}
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template <>
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inline v8::internal::Address ToCData(v8::internal::Object* obj) {
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if (obj == v8::internal::Smi::kZero) return v8::internal::kNullAddress;
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return v8::internal::Foreign::cast(obj)->foreign_address();
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}
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template <typename T>
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inline v8::internal::Handle<v8::internal::Object> FromCData(
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v8::internal::Isolate* isolate, T obj) {
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STATIC_ASSERT(sizeof(T) == sizeof(v8::internal::Address));
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if (obj == nullptr) return handle(v8::internal::Smi::kZero, isolate);
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return isolate->factory()->NewForeign(
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reinterpret_cast<v8::internal::Address>(obj));
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}
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template <>
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inline v8::internal::Handle<v8::internal::Object> FromCData(
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v8::internal::Isolate* isolate, v8::internal::Address obj) {
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if (obj == v8::internal::kNullAddress) {
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return handle(v8::internal::Smi::kZero, isolate);
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}
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return isolate->factory()->NewForeign(obj);
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}
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template <class From, class To>
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inline Local<To> Utils::Convert(v8::internal::Handle<From> obj) {
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DCHECK(obj.is_null() || (obj->IsSmi() || !obj->IsTheHole()));
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return Local<To>(reinterpret_cast<To*>(obj.location()));
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}
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// Implementations of ToLocal
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#define MAKE_TO_LOCAL(Name, From, To) \
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Local<v8::To> Utils::Name(v8::internal::Handle<v8::internal::From> obj) { \
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return Convert<v8::internal::From, v8::To>(obj); \
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}
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#define MAKE_TO_LOCAL_TYPED_ARRAY(Type, typeName, TYPE, ctype) \
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Local<v8::Type##Array> Utils::ToLocal##Type##Array( \
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v8::internal::Handle<v8::internal::JSTypedArray> obj) { \
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DCHECK(obj->type() == v8::internal::kExternal##Type##Array); \
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return Convert<v8::internal::JSTypedArray, v8::Type##Array>(obj); \
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}
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MAKE_TO_LOCAL(ToLocal, Context, Context)
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MAKE_TO_LOCAL(ToLocal, Object, Value)
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MAKE_TO_LOCAL(ToLocal, Module, Module)
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MAKE_TO_LOCAL(ToLocal, Name, Name)
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MAKE_TO_LOCAL(ToLocal, String, String)
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MAKE_TO_LOCAL(ToLocal, Symbol, Symbol)
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MAKE_TO_LOCAL(ToLocal, JSRegExp, RegExp)
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MAKE_TO_LOCAL(ToLocal, JSReceiver, Object)
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MAKE_TO_LOCAL(ToLocal, JSObject, Object)
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MAKE_TO_LOCAL(ToLocal, JSFunction, Function)
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MAKE_TO_LOCAL(ToLocal, JSArray, Array)
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MAKE_TO_LOCAL(ToLocal, JSMap, Map)
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MAKE_TO_LOCAL(ToLocal, JSSet, Set)
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MAKE_TO_LOCAL(ToLocal, JSProxy, Proxy)
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MAKE_TO_LOCAL(ToLocal, JSArrayBuffer, ArrayBuffer)
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MAKE_TO_LOCAL(ToLocal, JSArrayBufferView, ArrayBufferView)
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MAKE_TO_LOCAL(ToLocal, JSDataView, DataView)
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MAKE_TO_LOCAL(ToLocal, JSTypedArray, TypedArray)
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MAKE_TO_LOCAL(ToLocalShared, JSArrayBuffer, SharedArrayBuffer)
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TYPED_ARRAYS(MAKE_TO_LOCAL_TYPED_ARRAY)
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MAKE_TO_LOCAL(ToLocal, FunctionTemplateInfo, FunctionTemplate)
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MAKE_TO_LOCAL(ToLocal, ObjectTemplateInfo, ObjectTemplate)
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MAKE_TO_LOCAL(SignatureToLocal, FunctionTemplateInfo, Signature)
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MAKE_TO_LOCAL(AccessorSignatureToLocal, FunctionTemplateInfo, AccessorSignature)
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MAKE_TO_LOCAL(MessageToLocal, Object, Message)
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MAKE_TO_LOCAL(PromiseToLocal, JSObject, Promise)
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MAKE_TO_LOCAL(StackTraceToLocal, FixedArray, StackTrace)
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MAKE_TO_LOCAL(StackFrameToLocal, StackFrameInfo, StackFrame)
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MAKE_TO_LOCAL(NumberToLocal, Object, Number)
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MAKE_TO_LOCAL(IntegerToLocal, Object, Integer)
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MAKE_TO_LOCAL(Uint32ToLocal, Object, Uint32)
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MAKE_TO_LOCAL(ToLocal, BigInt, BigInt);
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MAKE_TO_LOCAL(ExternalToLocal, JSObject, External)
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MAKE_TO_LOCAL(CallableToLocal, JSReceiver, Function)
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MAKE_TO_LOCAL(ToLocalPrimitive, Object, Primitive)
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MAKE_TO_LOCAL(ToLocal, FixedArray, PrimitiveArray)
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MAKE_TO_LOCAL(ScriptOrModuleToLocal, Script, ScriptOrModule)
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#undef MAKE_TO_LOCAL_TYPED_ARRAY
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#undef MAKE_TO_LOCAL
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// Implementations of OpenHandle
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#define MAKE_OPEN_HANDLE(From, To) \
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v8::internal::Handle<v8::internal::To> Utils::OpenHandle( \
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const v8::From* that, bool allow_empty_handle) { \
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DCHECK(allow_empty_handle || that != nullptr); \
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DCHECK(that == nullptr || \
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(*reinterpret_cast<v8::internal::Object* const*>(that))->Is##To()); \
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return v8::internal::Handle<v8::internal::To>( \
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reinterpret_cast<v8::internal::To**>(const_cast<v8::From*>(that))); \
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}
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OPEN_HANDLE_LIST(MAKE_OPEN_HANDLE)
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#undef MAKE_OPEN_HANDLE
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#undef OPEN_HANDLE_LIST
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namespace internal {
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Handle<Context> HandleScopeImplementer::MicrotaskContext() {
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if (microtask_context_) return Handle<Context>(microtask_context_, isolate_);
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return Handle<Context>::null();
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}
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Handle<Context> HandleScopeImplementer::LastEnteredContext() {
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if (entered_contexts_.empty()) return Handle<Context>::null();
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return Handle<Context>(entered_contexts_.back(), isolate_);
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}
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} // namespace internal
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} // namespace v8
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#endif // V8_API_INL_H_
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