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Groovy example source code file (

This example Groovy source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

asttransformation, asttransformation, sourceunit, sourceunit

The Groovy source code

 * Copyright 2008 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.codehaus.groovy.transform;

import org.codehaus.groovy.ast.ASTNode;
import org.codehaus.groovy.control.SourceUnit;

 * This class is instantiated and invoked when an AST transformation is
 * activated. For Global AST Transformations, this interface is called once per SourceUnit, which is usually a
 * Groovy source file. For Local AST Transformations, this interface is invoked once every time the Local annotation
 * marker is encountered. <br/>
* * You must annotate this class with {@link GroovyASTTransformation} so that Groovy knows which * {@link org.codehaus.groovy.control.CompilePhase} to run in. * * @see GroovyASTTransformation * @author Danno Ferrin (shemnon) */ public interface ASTTransformation { /** * The method is invoked when an AST Transformation is active. For local transformations, it is invoked once * each time the local annotation is encountered. For global transformations, it is invoked once for every source * unit, which is typically a source file. * * @param nodes The ASTnodes when the call was triggered. Element 0 is the AnnotationNode that triggered this * annotation to be activated. Element 1 is the AnnotatedNode decorated, such as a MethodNode or ClassNode. For * global transformations it is usually safe to ignore this parameter. * @param source The source unit being compiled. The source unit may contain several classes. For global transformations, * information about the AST can be retrieved from this object. */ void visit(ASTNode nodes[], SourceUnit source); }

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