content: /**
   * Copyright (c) 2013, Andre Steingress
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
   * following conditions are met:
   *
   * 1.) Redistributions of source code must retain the above copyright notice, this list of conditions and the following
   * disclaimer.
   * 2.) Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
   * disclaimer in the documentation and/or other materials provided with the distribution.
   * 3.) Neither the name of Andre Steingress nor the names of its contributors may be used to endorse or
   * promote products derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
   * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  package org.gcontracts.ast.visitor;
  
  import org.codehaus.groovy.ast.ClassHelper;
  import org.codehaus.groovy.ast.ClassNode;
  import org.codehaus.groovy.ast.FieldNode;
  import org.codehaus.groovy.ast.expr.*;
  import org.codehaus.groovy.control.SourceUnit;
  import org.codehaus.groovy.control.io.ReaderSource;
  import org.gcontracts.generation.Configurator;
  import org.gcontracts.util.Validate;
  import org.objectweb.asm.Opcodes;
  
  /**
   * Makes some initialization in order to use the {@link Configurator} for determining
   * which assertions in what packages will be executed.
   *
   * @see Configurator
   *
   * @author ast
   */
  public class ConfigurationSetup {
  
      /**
       * Adds an instance field which allows to control whether GContract assertions
       * are enabled or not. Before assertions are evaluated this field will be checked.
       *
       * @see Configurator
       *
       * @param type the current {@link ClassNode}
       */
      public void init(final ClassNode type) {
          Validate.notNull(type);
  
          StaticMethodCallExpression checkAssertionsEnabledMethodCall = new StaticMethodCallExpression(ClassHelper.makeWithoutCaching(Configurator.class), "checkAssertionsEnabled", new ArgumentListExpression(new ConstantExpression(type.getName())));
  
          final FieldNode fieldNode = type.addField(BaseVisitor.GCONTRACTS_ENABLED_VAR, Opcodes.ACC_STATIC | Opcodes.ACC_SYNTHETIC | Opcodes.ACC_FINAL, ClassHelper.boolean_TYPE, checkAssertionsEnabledMethodCall);
  
          fieldNode.setSynthetic(true);
      }
  }
  