package org.xukai.jvm.cmd;
import org.xukai.jvm.clz.ClassFile;
import org.xukai.jvm.constant.ConstantInfo;
import org.xukai.jvm.constant.ConstantPool;
import org.xukai.jvm.constant.MethodRefInfo;
import org.xukai.jvm.engine.ExecutionResult;
import org.xukai.jvm.engine.MethodArea;
import org.xukai.jvm.engine.StackFrame;
import org.xukai.jvm.method.Method;
public class InvokeSpecialCmd extends TwoOperandCmd {
public InvokeSpecialCmd(ClassFile clzFile, String opCode) {
super(clzFile,opCode);
}
@Override
public String toString(ConstantPool pool) {
return super.getOperandAsMethod(pool);
}
@Override
public void execute(StackFrame frame, ExecutionResult result) {
int index = getIndex();
MethodRefInfo methodRefInfo = (MethodRefInfo)this.getConstantInfo(index);
String methodName = methodRefInfo.getMethodName();
String paramAndReturnType = methodRefInfo.getParamAndReturnType();
// 我们不用实现jang.lang.Object 的init方法
if(methodRefInfo.getClassName().equals("java/lang/Object")
&& methodRefInfo.getMethodName().equals("<init>")){
return ;
}
Method nextMethod = MethodArea.getInstance().getMethod(methodRefInfo);
result.setNextAction(ExecutionResult.PAUSE_AND_RUN_NEW_FRAME);
result.setNextMethod(nextMethod);
}
}