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/*
* Javassist, a Java-bytecode translator toolkit.
* Copyright (C) 1999-2003 Shigeru Chiba. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package javassist.preproc;
import javassist.CtClass;
import javassist.CannotCompileException;
import javassist.ClassPool;
/**
* This is an interface for objects invoked by the
* Javassist preprocessor when the preprocessor encounters an annotated
* import declaration.
*
* @see javassist.preproc.Compiler
*/
public interface Assistant {
/**
* Is called when the Javassist preprocessor encounters an
* import declaration annotated with the "by" keyword.
*
* <p>The original import declaration is replaced with new import
* declarations of classes returned by this method. For example,
* the following implementation does not change the original
* declaration:
*
* <ul><pre>
* public CtClass[] assist(ClassPool cp, String importname, String[] args) {
* return new CtClass[] { cp.get(importname) };
* }
* </pre></uL>
*
* @param cp class pool
* @param importname the class imported by the declaration
* @param args the parameters specified by the annotation
* @return the classes imported in the java source
* program produced by the preprocessor.
*/
public CtClass[] assist(ClassPool cp, String importname,
String[] args) throws CannotCompileException;
}
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