| // 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_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, |
| 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 on_resolve_context_index, int on_reject_context_index, |
| Node* is_predicted_as_caught) { |
| return Await(context, generator, value, outer_promise, |
| 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 on_resolve_context_index, int on_reject_context_index, |
| bool is_predicted_as_caught) { |
| return Await(context, generator, value, outer_promise, |
| 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); |
| |
| Node* AwaitOld(Node* context, Node* generator, Node* value, |
| Node* outer_promise, Node* on_resolve_context_index, |
| Node* on_reject_context_index, Node* is_predicted_as_caught); |
| Node* AwaitOptimized(Node* context, Node* generator, Node* value, |
| Node* outer_promise, Node* on_resolve_context_index, |
| Node* on_reject_context_index, |
| Node* is_predicted_as_caught); |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_BUILTINS_BUILTINS_ASYNC_GEN_H_ |
