Android Open Source - bad Basable Expression

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License

The source code is released under:

Copyright (C) 2013 Madis Pink Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Softwa...

Java Source Code

package com.madisp.bad.expr;
/*from w ww.ja  v  a 2  s.co  m*/
import com.madisp.bad.eval.BadConverter;
import com.madisp.bad.eval.Scope;
import com.madisp.bad.eval.Watcher;

/**
 * Created with IntelliJ IDEA.
 * User: madis
 * Date: 3/27/13
 * Time: 8:36 PM
 */
public abstract class BasableExpression implements Expression {
  private BasableExpression base;

  protected BasableExpression(BasableExpression base) {
    this.base = base;
  }

  public void setBase(BasableExpression base) {
    this.base = base;
  }

  @Override
  public void addWatcher(Scope scope, Watcher w) {
    if (hasBase()) {
      base.addWatcher(scope, w);
    }
  }

  protected boolean hasBase() {
    return base != null;
  }

  protected Object getBase(Scope scope) {
    if (base != null) {
      return BadConverter.object(base.value(scope));
    }
    return null;
  }

  protected Expression getBaseExpr() {
    return base;
  }
}

Java Source Code List

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