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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/interpreter/interpreter.h" | 5 #include "src/interpreter/interpreter.h" |
6 | 6 |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/compiler.h" | 8 #include "src/compiler.h" |
9 #include "src/compiler/interpreter-assembler.h" | 9 #include "src/compiler/interpreter-assembler.h" |
10 #include "src/factory.h" | 10 #include "src/factory.h" |
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1691 } | 1691 } |
1692 | 1692 |
1693 | 1693 |
1694 // ForInPrepare <cache_type> <cache_array> <cache_length> | 1694 // ForInPrepare <cache_type> <cache_array> <cache_length> |
1695 // | 1695 // |
1696 // Returns state for for..in loop execution based on the object in the | 1696 // Returns state for for..in loop execution based on the object in the |
1697 // accumulator. The registers |cache_type|, |cache_array|, and | 1697 // accumulator. The registers |cache_type|, |cache_array|, and |
1698 // |cache_length| represent output parameters. | 1698 // |cache_length| represent output parameters. |
1699 void Interpreter::DoForInPrepare(compiler::InterpreterAssembler* assembler) { | 1699 void Interpreter::DoForInPrepare(compiler::InterpreterAssembler* assembler) { |
1700 Node* object = __ GetAccumulator(); | 1700 Node* object = __ GetAccumulator(); |
1701 Node* result = __ CallRuntime(Runtime::kInterpreterForInPrepare, object); | 1701 Node* result_triple = __ CallRuntime(Runtime::kForInPrepare, object); |
| 1702 |
| 1703 // Set output registers: |
| 1704 // 0 == cache_type, 1 == cache_array, 2 == cache_length |
1702 for (int i = 0; i < 3; i++) { | 1705 for (int i = 0; i < 3; i++) { |
1703 // 0 == cache_type, 1 == cache_array, 2 == cache_length | 1706 Node* cache_info = __ Projection(i, result_triple); |
1704 Node* cache_info = __ LoadFixedArrayElement(result, i); | |
1705 Node* cache_info_reg = __ BytecodeOperandReg(i); | 1707 Node* cache_info_reg = __ BytecodeOperandReg(i); |
1706 __ StoreRegister(cache_info, cache_info_reg); | 1708 __ StoreRegister(cache_info, cache_info_reg); |
1707 } | 1709 } |
1708 __ SetAccumulator(result); | 1710 |
1709 __ Dispatch(); | 1711 __ Dispatch(); |
1710 } | 1712 } |
1711 | 1713 |
1712 | 1714 |
1713 // ForInNext <receiver> <cache_type> <cache_array> <index> | 1715 // ForInNext <receiver> <cache_type> <cache_array> <index> |
1714 // | 1716 // |
1715 // Returns the next enumerable property in the the accumulator. | 1717 // Returns the next enumerable property in the the accumulator. |
1716 void Interpreter::DoForInNext(compiler::InterpreterAssembler* assembler) { | 1718 void Interpreter::DoForInNext(compiler::InterpreterAssembler* assembler) { |
1717 Node* receiver_reg = __ BytecodeOperandReg(0); | 1719 Node* receiver_reg = __ BytecodeOperandReg(0); |
1718 Node* receiver = __ LoadRegister(receiver_reg); | 1720 Node* receiver = __ LoadRegister(receiver_reg); |
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1753 Node* index_reg = __ BytecodeOperandReg(0); | 1755 Node* index_reg = __ BytecodeOperandReg(0); |
1754 Node* index = __ LoadRegister(index_reg); | 1756 Node* index = __ LoadRegister(index_reg); |
1755 Node* result = __ CallRuntime(Runtime::kForInStep, index); | 1757 Node* result = __ CallRuntime(Runtime::kForInStep, index); |
1756 __ SetAccumulator(result); | 1758 __ SetAccumulator(result); |
1757 __ Dispatch(); | 1759 __ Dispatch(); |
1758 } | 1760 } |
1759 | 1761 |
1760 } // namespace interpreter | 1762 } // namespace interpreter |
1761 } // namespace internal | 1763 } // namespace internal |
1762 } // namespace v8 | 1764 } // namespace v8 |
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