| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ART_SRC_DEX_INSTRUCTION_VISITOR_H_ |
| #define ART_SRC_DEX_INSTRUCTION_VISITOR_H_ |
| |
| #include "base/macros.h" |
| #include "dex_instruction.h" |
| |
| namespace art { |
| |
| template<typename T> |
| class DexInstructionVisitor { |
| public: |
| void Visit(const uint16_t* code, size_t size_in_bytes) { |
| T* derived = static_cast<T*>(this); |
| size_t size_in_code_units = size_in_bytes / sizeof(uint16_t); |
| size_t i = 0; |
| while (i < size_in_code_units) { |
| const Instruction* inst = Instruction::At(&code[i]); |
| switch (inst->Opcode()) { |
| #define INSTRUCTION_CASE(o, cname, p, f, r, i, a, v) \ |
| case Instruction::cname: { \ |
| derived->Do_ ## cname(inst); \ |
| break; \ |
| } |
| #include "dex_instruction_list.h" |
| DEX_INSTRUCTION_LIST(INSTRUCTION_CASE) |
| #undef DEX_INSTRUCTION_LIST |
| #undef INSTRUCTION_CASE |
| default: |
| CHECK(false); |
| } |
| i += inst->SizeInCodeUnits(); |
| } |
| } |
| |
| private: |
| // Specific handlers for each instruction. |
| #define INSTRUCTION_VISITOR(o, cname, p, f, r, i, a, v) \ |
| void Do_ ## cname(const Instruction* inst) { \ |
| T* derived = static_cast<T*>(this); \ |
| derived->Do_Default(inst); \ |
| } |
| #include "dex_instruction_list.h" |
| DEX_INSTRUCTION_LIST(INSTRUCTION_VISITOR) |
| #undef DEX_INSTRUCTION_LIST |
| #undef INSTRUCTION_VISITOR |
| |
| // The default instruction handler. |
| void Do_Default(const Instruction*) { |
| return; |
| } |
| }; |
| |
| |
| } // namespace art |
| |
| #endif // ART_SRC_DEX_INSTRUCTION_VISITOR_H_ |