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// Copyright 2016 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.
#ifndef V8_BUILTINS_BUILTINS_ASYNC_GEN_H_
#define V8_BUILTINS_BUILTINS_ASYNC_GEN_H_
#include "src/builtins/builtins-promise-gen.h"
namespace v8 {
namespace internal {
class AsyncBuiltinsAssembler : public PromiseBuiltinsAssembler {
public:
explicit AsyncBuiltinsAssembler(compiler::CodeAssemblerState* state)
: PromiseBuiltinsAssembler(state) {}
protected:
// Perform steps to resume generator after `value` is resolved.
// `on_reject` is the SharedFunctioninfo instance used to create the reject
// closure. `on_resolve` is the SharedFunctioninfo instance used to create the
// resolve closure. Returns the Promise-wrapped `value`.
TNode<Object> Await(TNode<Context> context,
TNode<JSGeneratorObject> generator, TNode<Object> value,
TNode<JSPromise> outer_promise,
TNode<SharedFunctionInfo> on_resolve_sfi,
TNode<SharedFunctionInfo> on_reject_sfi,
TNode<Oddball> is_predicted_as_caught);
TNode<Object> Await(TNode<Context> context,
TNode<JSGeneratorObject> generator, TNode<Object> value,
TNode<JSPromise> outer_promise,
TNode<SharedFunctionInfo> on_resolve_sfi,
TNode<SharedFunctionInfo> on_reject_sfi,
bool is_predicted_as_caught) {
return Await(context, generator, value, outer_promise, on_resolve_sfi,
on_reject_sfi, BooleanConstant(is_predicted_as_caught));
}
// Return a new built-in function object as defined in
// Async Iterator Value Unwrap Functions
TNode<JSFunction> CreateUnwrapClosure(TNode<NativeContext> native_context,
TNode<Oddball> done);
private:
void InitializeNativeClosure(TNode<Context> context,
TNode<NativeContext> native_context,
TNode<HeapObject> function,
TNode<SharedFunctionInfo> shared_info);
TNode<Context> AllocateAsyncIteratorValueUnwrapContext(
TNode<NativeContext> native_context, TNode<Oddball> done);
TNode<Object> AwaitOld(TNode<Context> context,
TNode<JSGeneratorObject> generator,
TNode<Object> value, TNode<JSPromise> outer_promise,
TNode<SharedFunctionInfo> on_resolve_sfi,
TNode<SharedFunctionInfo> on_reject_sfi,
TNode<Oddball> is_predicted_as_caught);
TNode<Object> AwaitOptimized(TNode<Context> context,
TNode<JSGeneratorObject> generator,
TNode<JSPromise> promise,
TNode<JSPromise> outer_promise,
TNode<SharedFunctionInfo> on_resolve_sfi,
TNode<SharedFunctionInfo> on_reject_sfi,
TNode<Oddball> is_predicted_as_caught);
};
} // namespace internal
} // namespace v8
#endif // V8_BUILTINS_BUILTINS_ASYNC_GEN_H_
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