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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 |
| 11 namespace v8 { | 11 namespace v8 { |
| 12 namespace base { | 12 namespace base { |
| 13 class AccountingAllocator; | 13 class AccountingAllocator; |
| 14 } | 14 } |
| 15 | 15 |
| 16 namespace internal { | 16 namespace internal { |
| 17 namespace wasm { | 17 namespace wasm { |
| 18 | 18 |
| 19 // forward declarations. | 19 // forward declarations. |
| 20 struct WasmFunction; | 20 struct WasmFunction; |
| 21 struct WasmModuleInstance; | 21 struct WasmInstance; |
| 22 class WasmInterpreterInternals; | 22 class WasmInterpreterInternals; |
| 23 | 23 |
| 24 typedef size_t pc_t; | 24 typedef size_t pc_t; |
| 25 typedef size_t sp_t; | 25 typedef size_t sp_t; |
| 26 typedef int32_t pcdiff_t; | 26 typedef int32_t pcdiff_t; |
| 27 typedef uint32_t spdiff_t; | 27 typedef uint32_t spdiff_t; |
| 28 | 28 |
| 29 const pc_t kInvalidPc = 0x80000000; | 29 const pc_t kInvalidPc = 0x80000000; |
| 30 | 30 |
| 31 typedef ZoneMap<pc_t, pcdiff_t> ControlTransferMap; | 31 typedef ZoneMap<pc_t, pcdiff_t> ControlTransferMap; |
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| 124 virtual int GetFrameCount() = 0; | 124 virtual int GetFrameCount() = 0; |
| 125 virtual const WasmFrame* GetFrame(int index) = 0; | 125 virtual const WasmFrame* GetFrame(int index) = 0; |
| 126 virtual WasmFrame* GetMutableFrame(int index) = 0; | 126 virtual WasmFrame* GetMutableFrame(int index) = 0; |
| 127 virtual WasmVal GetReturnValue(int index = 0) = 0; | 127 virtual WasmVal GetReturnValue(int index = 0) = 0; |
| 128 | 128 |
| 129 // Thread-specific breakpoints. | 129 // Thread-specific breakpoints. |
| 130 bool SetBreakpoint(const WasmFunction* function, int pc, bool enabled); | 130 bool SetBreakpoint(const WasmFunction* function, int pc, bool enabled); |
| 131 bool GetBreakpoint(const WasmFunction* function, int pc); | 131 bool GetBreakpoint(const WasmFunction* function, int pc); |
| 132 }; | 132 }; |
| 133 | 133 |
| 134 WasmInterpreter(WasmModuleInstance* instance, AccountingAllocator* allocator); | 134 WasmInterpreter(WasmInstance* instance, AccountingAllocator* allocator); |
| 135 ~WasmInterpreter(); | 135 ~WasmInterpreter(); |
| 136 | 136 |
| 137 //========================================================================== | 137 //========================================================================== |
| 138 // Execution controls. | 138 // Execution controls. |
| 139 //========================================================================== | 139 //========================================================================== |
| 140 void Run(); | 140 void Run(); |
| 141 void Pause(); | 141 void Pause(); |
| 142 | 142 |
| 143 // Set a breakpoint at {pc} in {function} to be {enabled}. Returns the | 143 // Set a breakpoint at {pc} in {function} to be {enabled}. Returns the |
| 144 // previous state of the breakpoint at {pc}. | 144 // previous state of the breakpoint at {pc}. |
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| 190 private: | 190 private: |
| 191 Zone zone_; | 191 Zone zone_; |
| 192 WasmInterpreterInternals* internals_; | 192 WasmInterpreterInternals* internals_; |
| 193 }; | 193 }; |
| 194 | 194 |
| 195 } // namespace wasm | 195 } // namespace wasm |
| 196 } // namespace internal | 196 } // namespace internal |
| 197 } // namespace v8 | 197 } // namespace v8 |
| 198 | 198 |
| 199 #endif // V8_WASM_INTERPRETER_H_ | 199 #endif // V8_WASM_INTERPRETER_H_ |
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