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// Copyright 2011 Google Inc. All Rights Reserved.
#ifndef ART_SRC_DEX_INSTRUCTION_VISITOR_H_
#define ART_SRC_DEX_INSTRUCTION_VISITOR_H_
#include "dex_instruction.h"
#include "macros.h"
namespace art {
template<typename T>
class DexInstructionVisitor {
public:
void Visit(const uint16_t* code, size_t size) {
T* derived = static_cast<T*>(this);
const byte* ptr = reinterpret_cast<const byte*>(code);
const byte* end = ptr + size;
while (ptr != end) {
const Instruction* inst = Instruction::At(ptr);
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);
}
ptr += inst->Size() * sizeof(uint16_t);
CHECK_LE(ptr, end);
}
}
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* inst) {
return;
}
};
} // namespace art
#endif // ART_SRC_DEX_INSTRUCTION_VISITOR_H_
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