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Groovy: A powerful, dynamic language for the JVM
/*
* Copyright 2003-2010 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.vmplugin;
import org.codehaus.groovy.ast.*;
import java.lang.reflect.Method;
/**
* Interface to access VM version based actions.
* This interface is for internal use only!
*
* @author Jochen Theodorou
*/
public interface VMPlugin {
void setAdditionalClassInformation(ClassNode c);
Class[] getPluginDefaultGroovyMethods();
Class[] getPluginStaticGroovyMethods();
void configureAnnotation(AnnotationNode an);
void configureClassNode(CompileUnit compileUnit, ClassNode classNode);
void invalidateCallSites();
/**
* Returns a handle with bound receiver to invokeSpecial the given method.
* This method will require at least Java 7, but since the source has to compile
* on older Java versions as well it is not marked to return a MethodHandle and
* uses Object instead
* @return null in case of jdk<7, otherwise a handel that takes the method call
* arguments for the invokespecial call
*/
Object getInvokeSpecialHandle(Method m, Object receiver);
/**
* Invokes a handle produced by #getInvokeSpecialdHandle
* @param handle the handle
* @param args arguments for the method call, can be empty but not null
* @return the result of the method call
*/
Object invokeHandle(Object handle, Object[] args) throws Throwable;
/**
* Gives the version the plguin is made for
* @return 5 for jdk5, 6 for jdk6, 7 for jdk7 or higher
*/
int getVersion();
}