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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 #ifndef V8_WASM_AST_DECODER_H_ | 5 #ifndef V8_WASM_AST_DECODER_H_ |
6 #define V8_WASM_AST_DECODER_H_ | 6 #define V8_WASM_AST_DECODER_H_ |
7 | 7 |
8 #include "src/signature.h" | 8 #include "src/signature.h" |
9 #include "src/wasm/decoder.h" | 9 #include "src/wasm/decoder.h" |
10 #include "src/wasm/wasm-opcodes.h" | 10 #include "src/wasm/wasm-opcodes.h" |
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230 } | 230 } |
231 | 231 |
232 struct DecodeStruct { | 232 struct DecodeStruct { |
233 int unused; | 233 int unused; |
234 }; | 234 }; |
235 typedef Result<DecodeStruct*> DecodeResult; | 235 typedef Result<DecodeStruct*> DecodeResult; |
236 inline std::ostream& operator<<(std::ostream& os, const DecodeStruct& tree) { | 236 inline std::ostream& operator<<(std::ostream& os, const DecodeStruct& tree) { |
237 return os; | 237 return os; |
238 } | 238 } |
239 | 239 |
240 DecodeResult VerifyWasmCode(base::AccountingAllocator* allocator, | 240 DecodeResult VerifyWasmCode(AccountingAllocator* allocator, FunctionBody& body); |
241 FunctionBody& body); | 241 DecodeResult BuildTFGraph(AccountingAllocator* allocator, TFBuilder* builder, |
242 DecodeResult BuildTFGraph(base::AccountingAllocator* allocator, | 242 FunctionBody& body); |
243 TFBuilder* builder, FunctionBody& body); | 243 bool PrintAst(AccountingAllocator* allocator, const FunctionBody& body, |
244 bool PrintAst(base::AccountingAllocator* allocator, const FunctionBody& body, | |
245 std::ostream& os, | 244 std::ostream& os, |
246 std::vector<std::tuple<uint32_t, int, int>>* offset_table); | 245 std::vector<std::tuple<uint32_t, int, int>>* offset_table); |
247 | 246 |
248 // A simplified form of AST printing, e.g. from a debugger. | 247 // A simplified form of AST printing, e.g. from a debugger. |
249 void PrintAstForDebugging(const byte* start, const byte* end); | 248 void PrintAstForDebugging(const byte* start, const byte* end); |
250 | 249 |
251 inline DecodeResult VerifyWasmCode(base::AccountingAllocator* allocator, | 250 inline DecodeResult VerifyWasmCode(AccountingAllocator* allocator, |
252 ModuleEnv* module, FunctionSig* sig, | 251 ModuleEnv* module, FunctionSig* sig, |
253 const byte* start, const byte* end) { | 252 const byte* start, const byte* end) { |
254 FunctionBody body = {module, sig, nullptr, start, end}; | 253 FunctionBody body = {module, sig, nullptr, start, end}; |
255 return VerifyWasmCode(allocator, body); | 254 return VerifyWasmCode(allocator, body); |
256 } | 255 } |
257 | 256 |
258 inline DecodeResult BuildTFGraph(base::AccountingAllocator* allocator, | 257 inline DecodeResult BuildTFGraph(AccountingAllocator* allocator, |
259 TFBuilder* builder, ModuleEnv* module, | 258 TFBuilder* builder, ModuleEnv* module, |
260 FunctionSig* sig, const byte* start, | 259 FunctionSig* sig, const byte* start, |
261 const byte* end) { | 260 const byte* end) { |
262 FunctionBody body = {module, sig, nullptr, start, end}; | 261 FunctionBody body = {module, sig, nullptr, start, end}; |
263 return BuildTFGraph(allocator, builder, body); | 262 return BuildTFGraph(allocator, builder, body); |
264 } | 263 } |
265 | 264 |
266 struct AstLocalDecls { | 265 struct AstLocalDecls { |
267 // The size of the encoded declarations. | 266 // The size of the encoded declarations. |
268 uint32_t decls_encoded_size; // size of encoded declarations | 267 uint32_t decls_encoded_size; // size of encoded declarations |
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339 } | 338 } |
340 | 339 |
341 bool has_next() { return pc_ < end_; } | 340 bool has_next() { return pc_ < end_; } |
342 }; | 341 }; |
343 | 342 |
344 } // namespace wasm | 343 } // namespace wasm |
345 } // namespace internal | 344 } // namespace internal |
346 } // namespace v8 | 345 } // namespace v8 |
347 | 346 |
348 #endif // V8_WASM_AST_DECODER_H_ | 347 #endif // V8_WASM_AST_DECODER_H_ |
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