Line data    Source code

       1             : // Copyright 2017 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_BUILTINS_BUILTINS_ITERATOR_GEN_H_
       6             : #define V8_BUILTINS_BUILTINS_ITERATOR_GEN_H_
       7             : 
       8             : #include "src/code-stub-assembler.h"
       9             : 
      10             : namespace v8 {
      11             : namespace internal {
      12             : 
      13             : using compiler::Node;
      14             : 
      15             : class IteratorBuiltinsAssembler : public CodeStubAssembler {
      16             :  public:
      17             :   explicit IteratorBuiltinsAssembler(compiler::CodeAssemblerState* state)
      18         155 :       : CodeStubAssembler(state) {}
      19             : 
      20             :   // https://tc39.github.io/ecma262/#sec-getiterator --- never used for
      21             :   // @@asyncIterator.
      22             :   Node* GetIterator(Node* context, Node* object, Label* if_exception = nullptr,
      23             :                     Variable* exception = nullptr);
      24             : 
      25             :   // https://tc39.github.io/ecma262/#sec-iteratorstep
      26             :   // Returns `false` if the iterator is done, otherwise returns an
      27             :   // iterator result.
      28             :   // `fast_iterator_result_map` refers to the map for the JSIteratorResult
      29             :   // object, loaded from the native context.
      30             :   Node* IteratorStep(Node* context, Node* iterator, Label* if_done,
      31             :                      Node* fast_iterator_result_map = nullptr,
      32             :                      Label* if_exception = nullptr,
      33             :                      Variable* exception = nullptr);
      34             : 
      35             :   // https://tc39.github.io/ecma262/#sec-iteratorvalue
      36             :   // Return the `value` field from an iterator.
      37             :   // `fast_iterator_result_map` refers to the map for the JSIteratorResult
      38             :   // object, loaded from the native context.
      39             :   Node* IteratorValue(Node* context, Node* result,
      40             :                       Node* fast_iterator_result_map = nullptr,
      41             :                       Label* if_exception = nullptr,
      42             :                       Variable* exception = nullptr);
      43             : 
      44             :   // https://tc39.github.io/ecma262/#sec-iteratorclose
      45             :   void IteratorCloseOnException(Node* context, Node* iterator,
      46             :                                 Label* if_exception, Variable* exception);
      47             :   void IteratorCloseOnException(Node* context, Node* iterator,
      48             :                                 Variable* exception);
      49             : };
      50             : 
      51             : }  // namespace internal
      52             : }  // namespace v8
      53             : 
      54             : #endif  // V8_BUILTINS_BUILTINS_ITERATOR_GEN_H_