Class ForBlock

UnLuac/src/unluac/decompile/block/ForBlock.java:13–85

import unluac.parse.LFunction;

abstract public class ForBlock extends ContainerBlock {

  protected final int register;
  protected final boolean forvarClose;
  
  protected Target target;
  protected Expression start;
  protected Expression stop;
  protected Expression step;
  
  public ForBlock(LFunction function, int begin, int end, int register, CloseType closeType, int closeLine, boolean forvarClose) {
    super(function, begin, end, closeType, closeLine, -1);
    this.register = register;
    this.forvarClose = forvarClose;
  }

  abstract public void handleVariableDeclarations(Registers r);
  
  @Override
  public void walk(Walker w) {
    w.visitStatement(this);
    start.walk(w);
    stop.walk(w);
    step.walk(w);
    for(Statement statement : statements) {
      statement.walk(w);
    }
  }
  
  @Override
  public int scopeEnd() {
    int scopeEnd = end - 2;
    if(forvarClose) scopeEnd--;
    if(usingClose && (closeType == CloseType.CLOSE || closeType == CloseType.JMP)) scopeEnd--;
    return scopeEnd;
  }
  
  @Override
  public boolean breakable() {
    return true;
  }
  
  @Override
  public boolean isUnprotected() {
    return false;
  }

  @Override
  public int getLoopback() {
    throw new IllegalStateException();
  }

  @Override
  public void print(Decompiler d, Output out) {
    out.print("for ");
    target.print(d, out, false);
    out.print(" = ");
    start.print(d, out);