builtins-async-generator-gen.cc | Explore in Territory

// Copyright 2017 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/builtins/builtins-async-gen.h"
#include "src/builtins/builtins-utils-gen.h"
#include "src/builtins/builtins.h"
#include "src/codegen/code-stub-assembler-inl.h"
#include "src/execution/frames-inl.h"
#include "src/objects/js-generator.h"
#include "src/objects/js-promise.h"

namespace v8 {
namespace internal {

#include "src/codegen/define-code-stub-assembler-macros.inc"

namespace {

class AsyncGeneratorBuiltinsAssembler : public AsyncBuiltinsAssembler { … };

// Shared implementation for the 3 Async Iterator protocol methods of Async
// Generators.
void AsyncGeneratorBuiltinsAssembler::AsyncGeneratorEnqueue(
    CodeStubArguments* args, TNode<Context> context, TNode<Object> receiver,
    TNode<Object> value, JSAsyncGeneratorObject::ResumeMode resume_mode,
    const char* method_name) { … }

TNode<AsyncGeneratorRequest>
AsyncGeneratorBuiltinsAssembler::AllocateAsyncGeneratorRequest(
    JSAsyncGeneratorObject::ResumeMode resume_mode, TNode<Object> resume_value,
    TNode<JSPromise> promise) { … }

void AsyncGeneratorBuiltinsAssembler::AsyncGeneratorAwaitResume(
    TNode<Context> context,
    TNode<JSAsyncGeneratorObject> async_generator_object, TNode<Object> value,
    JSAsyncGeneratorObject::ResumeMode resume_mode) { … }

void AsyncGeneratorBuiltinsAssembler::AsyncGeneratorAwaitResumeClosure(
    TNode<Context> context, TNode<Object> value,
    JSAsyncGeneratorObject::ResumeMode resume_mode) { … }

template <typename Descriptor>
void AsyncGeneratorBuiltinsAssembler::AsyncGeneratorAwait() { … }

void AsyncGeneratorBuiltinsAssembler::AddAsyncGeneratorRequestToQueue(
    TNode<JSAsyncGeneratorObject> generator,
    TNode<AsyncGeneratorRequest> request) { … }

TNode<AsyncGeneratorRequest>
AsyncGeneratorBuiltinsAssembler::TakeFirstAsyncGeneratorRequestFromQueue(
    TNode<JSAsyncGeneratorObject> generator) { … }

void AsyncGeneratorBuiltinsAssembler::AsyncGeneratorReturnClosedReject(
    TNode<Context> context, TNode<JSAsyncGeneratorObject> generator,
    TNode<Object> value) { … }
}  // namespace

// https://tc39.github.io/proposal-async-iteration/
// Section #sec-asyncgenerator-prototype-next
TF_BUILTIN(AsyncGeneratorPrototypeNext, AsyncGeneratorBuiltinsAssembler) { … }

// https://tc39.github.io/proposal-async-iteration/
// Section #sec-asyncgenerator-prototype-return
TF_BUILTIN(AsyncGeneratorPrototypeReturn, AsyncGeneratorBuiltinsAssembler) { … }

// https://tc39.github.io/proposal-async-iteration/
// Section #sec-asyncgenerator-prototype-throw
TF_BUILTIN(AsyncGeneratorPrototypeThrow, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorAwaitResolveClosure, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorAwaitRejectClosure, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorAwait, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorResumeNext, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorResolve, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorReject, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorYieldWithAwait, AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorYieldWithAwaitResolveClosure,
           AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorReturn, AsyncGeneratorBuiltinsAssembler) { … }

// On-resolve closure for Await in AsyncGeneratorReturn
// Resume the generator with "return" resume_mode, and finally perform
// AsyncGeneratorResumeNext. Per
// proposal-async-iteration/#sec-asyncgeneratoryield step 8.e
TF_BUILTIN(AsyncGeneratorReturnResolveClosure,
           AsyncGeneratorBuiltinsAssembler) { … }

// On-resolve closure for Await in AsyncGeneratorReturn
// Perform AsyncGeneratorResolve({awaited_value}, true) and finally perform
// AsyncGeneratorResumeNext.
TF_BUILTIN(AsyncGeneratorReturnClosedResolveClosure,
           AsyncGeneratorBuiltinsAssembler) { … }

TF_BUILTIN(AsyncGeneratorReturnClosedRejectClosure,
           AsyncGeneratorBuiltinsAssembler) { … }

#include "src/codegen/undef-code-stub-assembler-macros.inc"

}  // namespace internal
}  // namespace v8
chromium/v8/src/builtins/builtins-async-generator-gen.cc
