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1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 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 #ifndef V8_WASM_INTERPRETER_H_ | 5 #ifndef V8_WASM_INTERPRETER_H_ |
6 #define V8_WASM_INTERPRETER_H_ | 6 #define V8_WASM_INTERPRETER_H_ |
7 | 7 |
8 #include "src/wasm/wasm-opcodes.h" | 8 #include "src/wasm/wasm-opcodes.h" |
9 #include "src/zone/zone-containers.h" | 9 #include "src/zone/zone-containers.h" |
10 | 10 |
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95 WasmFrame(const WasmFunction* function, int pc, int fp, int sp) | 95 WasmFrame(const WasmFunction* function, int pc, int fp, int sp) |
96 : function_(function), pc_(pc), fp_(fp), sp_(sp) {} | 96 : function_(function), pc_(pc), fp_(fp), sp_(sp) {} |
97 | 97 |
98 const WasmFunction* function_; | 98 const WasmFunction* function_; |
99 int pc_; | 99 int pc_; |
100 int fp_; | 100 int fp_; |
101 int sp_; | 101 int sp_; |
102 }; | 102 }; |
103 | 103 |
104 // An interpreter capable of executing WASM. | 104 // An interpreter capable of executing WASM. |
105 class WasmInterpreter { | 105 class V8_EXPORT_PRIVATE WasmInterpreter { |
106 public: | 106 public: |
107 // State machine for a Thread: | 107 // State machine for a Thread: |
108 // +---------------Run()-----------+ | 108 // +---------------Run()-----------+ |
109 // V | | 109 // V | |
110 // STOPPED ---Run()--> RUNNING ------Pause()-----+-> PAUSED <------+ | 110 // STOPPED ---Run()--> RUNNING ------Pause()-----+-> PAUSED <------+ |
111 // | | | / | | | 111 // | | | / | | |
112 // | | +---- Breakpoint ---+ +-- Step() --+ | 112 // | | +---- Breakpoint ---+ +-- Step() --+ |
113 // | | | 113 // | | |
114 // | +------------ Trap --------------> TRAPPED | 114 // | +------------ Trap --------------> TRAPPED |
115 // +------------- Finish -------------> FINISHED | 115 // +------------- Finish -------------> FINISHED |
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199 private: | 199 private: |
200 Zone zone_; | 200 Zone zone_; |
201 WasmInterpreterInternals* internals_; | 201 WasmInterpreterInternals* internals_; |
202 }; | 202 }; |
203 | 203 |
204 } // namespace wasm | 204 } // namespace wasm |
205 } // namespace internal | 205 } // namespace internal |
206 } // namespace v8 | 206 } // namespace v8 |
207 | 207 |
208 #endif // V8_WASM_INTERPRETER_H_ | 208 #endif // V8_WASM_INTERPRETER_H_ |
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