Method.java

package com.coderising.jvm.method;

import com.coderising.jvm.clz.ClassFile;
//import com.coderising.jvm.cmd.ByteCodeCommand;
import com.coderising.jvm.attr.AttributeInfo;
import com.coderising.jvm.attr.CodeAttr;
import com.coderising.jvm.attr.LineNumberTable;
import com.coderising.jvm.attr.LocalVariableTable;
import com.coderising.jvm.attr.StackMapTable;
import com.coderising.jvm.constant.ConstantPool;
import com.coderising.jvm.constant.UTF8Info;
import com.coderising.jvm.loader.ByteCodeIterator;



public class Method {
	
	private int accessFlag;
	private int nameIndex;
	private int descriptorIndex;
	
	private CodeAttr codeAttr;
	
	private ClassFile clzFile;
	
	
	public ClassFile getClzFile() {
		return clzFile;
	}

	public int getNameIndex() {
		return nameIndex;
	}
	public int getDescriptorIndex() {
		return descriptorIndex;
	}
	
	public CodeAttr getCodeAttr() {
		return codeAttr;
	}

	public void setCodeAttr(CodeAttr code) {
		this.codeAttr = code;
	}
	
	

	public Method(ClassFile clzFile,int accessFlag, int nameIndex, int descriptorIndex) {
		this.clzFile = clzFile;
		this.accessFlag = accessFlag;
		this.nameIndex = nameIndex;
		this.descriptorIndex = descriptorIndex;
	}

	
	
	
	
	public String toString() {
		
		ConstantPool pool = this.clzFile.getConstantPool();
		StringBuilder buffer = new StringBuilder();
		
		String name = ((UTF8Info)pool.getConstantInfo(this.nameIndex)).getValue();
		
		String desc = ((UTF8Info)pool.getConstantInfo(this.descriptorIndex)).getValue();
		
		buffer.append(name).append(":").append(desc).append("\n");
		
		buffer.append(this.codeAttr.toString(pool));
		
		return buffer.toString();
	}
	
	public static Method parse(ClassFile clzFile,ConstantPool pool, ByteCodeIterator iter){
		int accessFlag = iter.nextU2AsInt();
		int nameIndex = iter.nextU2AsInt();
		System.out.println("++>MethodName="+pool.getUTF8String(nameIndex));
		int descIndex = iter.nextU2AsInt();
		Method method = new Method(clzFile,accessFlag,nameIndex,descIndex);
		int attrCount = iter.nextU2AsInt();
		System.out.println("AttrCount="+attrCount);
		for(int i=0;i<attrCount;i++){
			CodeAttr codeAttr = CodeAttr.parse(clzFile,pool, iter);
			method.setCodeAttr(codeAttr);
		}
		return method;
	}

//	public ByteCodeCommand[] getCmds() {		
//		return this.getCodeAttr().getCmds();
//	}
}