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package com.github.rapidark.framework.thirdparty.asm.tree;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import com.github.rapidark.framework.thirdparty.asm.MethodVisitor;

public class FrameNode extends AbstractInsnNode {
	public int type;
	public List local;
	public List stack;

	private FrameNode() {
		super(-1);
	}

	public FrameNode(int type, int nLocal, Object[] local, int nStack, Object[] stack) {
		super(-1);
		this.type = type;
		switch (type) {
		case -1:
		case 0:
			this.local = asList(nLocal, local);
			this.stack = asList(nStack, stack);
			break;
		case 1:
			this.local = asList(nLocal, local);
			break;
		case 2:
			this.local = Arrays.asList(new Object[nLocal]);
			break;
		case 3:
			break;
		case 4:
			this.stack = asList(1, stack);
		}
	}

	public int getType() {
		return 14;
	}

	public void accept(MethodVisitor mv) {
		switch (this.type) {
		case -1:
		case 0:
			mv.visitFrame(this.type, this.local.size(), asArray(this.local), this.stack.size(), asArray(this.stack));
			break;
		case 1:
			mv.visitFrame(this.type, this.local.size(), asArray(this.local), 0, null);
			break;
		case 2:
			mv.visitFrame(this.type, this.local.size(), null, 0, null);
			break;
		case 3:
			mv.visitFrame(this.type, 0, null, 0, null);
			break;
		case 4:
			mv.visitFrame(this.type, 0, null, 1, asArray(this.stack));
		}
	}

	public AbstractInsnNode clone(Map labels) {
		FrameNode clone = new FrameNode();
		clone.type = this.type;
		if (this.local != null) {
			clone.local = new ArrayList();
			for (int i = 0; i < this.local.size(); i++) {
				Object l = this.local.get(i);
				if ((l instanceof LabelNode)) {
					l = labels.get(l);
				}
				clone.local.add(l);
			}
		}
		if (this.stack != null) {
			clone.stack = new ArrayList();
			for (int i = 0; i < this.stack.size(); i++) {
				Object s = this.stack.get(i);
				if ((s instanceof LabelNode)) {
					s = labels.get(s);
				}
				clone.stack.add(s);
			}
		}
		return clone;
	}

	private static List asList(int n, Object[] o) {
		return Arrays.asList(o).subList(0, n);
	}

	private static Object[] asArray(List l) {
		Object[] objs = new Object[l.size()];
		for (int i = 0; i < objs.length; i++) {
			Object o = l.get(i);
			if ((o instanceof LabelNode)) {
				o = ((LabelNode) o).getLabel();
			}
			objs[i] = o;
		}
		return objs;
	}
}
    

    

    

            

    

            



    
    






    
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