builtins-async-iterator-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 <optional>

#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"

namespace v8 {
namespace internal {

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

namespace {
class AsyncFromSyncBuiltinsAssembler : public AsyncBuiltinsAssembler { … };

// This implements common steps found in various AsyncFromSyncIterator prototype
// methods followed by ES#sec-asyncfromsynciteratorcontinuation. The differences
// between the various prototype methods are handled by the get_method and
// if_method_undefined callbacks.
void AsyncFromSyncBuiltinsAssembler::Generate_AsyncFromSyncIteratorMethod(
    CodeStubArguments* args, const TNode<Context> context,
    const TNode<Object> iterator, const TNode<Object> sent_value,
    const SyncIteratorNodeGenerator& get_method,
    const UndefinedMethodHandler& if_method_undefined,
    const char* operation_name, CloseOnRejectionOption close_on_rejection,
    Label::Type reject_label_type,
    std::optional<TNode<Object>> initial_exception_value) { … }

std::pair<TNode<Object>, TNode<Boolean>>
AsyncFromSyncBuiltinsAssembler::LoadIteratorResult(
    const TNode<Context> context, const TNode<NativeContext> native_context,
    const TNode<Object> iter_result, Label* if_exception,
    TVariable<Object>* var_exception) { … }

TNode<JSFunction> AsyncFromSyncBuiltinsAssembler::
    CreateAsyncFromSyncIteratorCloseSyncAndRethrowClosure(
        TNode<NativeContext> native_context, TNode<JSReceiver> sync_iterator) { … }

TNode<Context> AsyncFromSyncBuiltinsAssembler::
    AllocateAsyncFromSyncIteratorCloseSyncAndRethrowContext(
        TNode<NativeContext> native_context, TNode<JSReceiver> sync_iterator) { … }

}  // namespace

// ES#sec-%asyncfromsynciteratorprototype%.next
TF_BUILTIN(AsyncFromSyncIteratorPrototypeNext, AsyncFromSyncBuiltinsAssembler) { … }

// ES#sec-%asyncfromsynciteratorprototype%.return
TF_BUILTIN(AsyncFromSyncIteratorPrototypeReturn,
           AsyncFromSyncBuiltinsAssembler) { … }

// ES#sec-%asyncfromsynciteratorprototype%.throw
TF_BUILTIN(AsyncFromSyncIteratorPrototypeThrow,
           AsyncFromSyncBuiltinsAssembler) { … }

TF_BUILTIN(AsyncFromSyncIteratorCloseSyncAndRethrow,
           AsyncFromSyncBuiltinsAssembler) { … }

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

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