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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:
typedef std::function<void(Node*)> ContextInitializer;
// Perform steps to resume generator after `value` is resolved.
// `on_reject_context_index` is an index into the Native Context, which should
// point to a SharedFunctioninfo instance used to create the closure. The
// value following the reject index should be a similar value for the resolve
// closure. Returns the Promise-wrapped `value`.
Node* Await(Node* context, Node* generator, Node* value, Node* outer_promise,
int context_length,
const ContextInitializer& init_closure_context,
Node* on_resolve_context_index, Node* on_reject_context_index,
Node* is_predicted_as_caught);
Node* Await(Node* context, Node* generator, Node* value, Node* outer_promise,
int context_length,
const ContextInitializer& init_closure_context,
int on_resolve_context_index, int on_reject_context_index,
Node* is_predicted_as_caught) {
return Await(context, generator, value, outer_promise, context_length,
init_closure_context, IntPtrConstant(on_resolve_context_index),
IntPtrConstant(on_reject_context_index),
is_predicted_as_caught);
}
Node* Await(Node* context, Node* generator, Node* value, Node* outer_promise,
int context_length,
const ContextInitializer& init_closure_context,
int on_resolve_context_index, int on_reject_context_index,
bool is_predicted_as_caught) {
return Await(context, generator, value, outer_promise, context_length,
init_closure_context, on_resolve_context_index,
on_reject_context_index,
BooleanConstant(is_predicted_as_caught));
}
// Return a new built-in function object as defined in
// Async Iterator Value Unwrap Functions
Node* CreateUnwrapClosure(Node* const native_context, Node* const done);
private:
void InitializeNativeClosure(Node* context, Node* native_context,
Node* function, Node* context_index);
Node* AllocateAsyncIteratorValueUnwrapContext(Node* native_context,
Node* done);
};
} // namespace internal
} // namespace v8
#endif // V8_BUILTINS_BUILTINS_ASYNC_GEN_H_
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