@Override
public void avm2CodeRemoveTraps(
String path,
int classIndex,
boolean isStatic,
int scriptIndex,
ABC abc,
Trait trait,
int methodInfo,
MethodBody body)
throws InterruptedException {
AVM2Code code = body.getCode();
code.removeDeadCode(body);
removeObfuscationIfs(classIndex, isStatic, scriptIndex, abc, body, null);
removeZeroJumps(code, body);
}
protected boolean removeObfuscationIfs(
int classIndex,
boolean isStatic,
int scriptIndex,
ABC abc,
MethodBody body,
AVM2Instruction inlineIns)
throws InterruptedException {
AVM2Code code = body.getCode();
if (code.code.isEmpty()) {
return false;
}
Map<Integer, Object> staticRegs = new HashMap<>();
if (inlineIns != null && inlineIns.definition instanceof GetLocalTypeIns) {
staticRegs.put(
((GetLocalTypeIns) inlineIns.definition).getRegisterId(inlineIns), Undefined.INSTANCE);
}
if (code.code.isEmpty()) {
return false;
}
FixItemCounterStack stack = new FixItemCounterStack();
LocalDataArea localData = new LocalDataArea();
localData.operandStack = stack;
int localReservedCount = body.getLocalReservedCount();
for (int i = 0; i < code.code.size(); i++) {
if (Thread.currentThread().isInterrupted()) {
throw new InterruptedException();
}
localData.clear();
initLocalRegs(localData, localReservedCount, body.max_regs, i == 0);
if (executeInstructions(
staticRegs, body, abc, code, localData, i, code.code.size() - 1, null, inlineIns)) {
code.removeDeadCode(body);
i--;
}
}
return false;
}