| /* |
| * Copyright 2003-2007 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.runtime.metaclass; |
| |
| import groovy.lang.Closure; |
| import groovy.lang.ClosureInvokingMethod; |
| import groovy.lang.MetaMethod; |
| import org.codehaus.groovy.reflection.CachedClass; |
| import org.codehaus.groovy.reflection.ParameterTypes; |
| import org.codehaus.groovy.reflection.ReflectionCache; |
| |
| import java.lang.reflect.Modifier; |
| |
| /** |
| * This class represents a MetaMethod that is a closure that pretends to be a static method. |
| * It is used by ExpandoMetaClass to allow addition of static methods defined as closures |
| * |
| * @author Graeme Rocher |
| * @since 01.1 |
| */ |
| public class ClosureStaticMetaMethod extends MetaMethod implements ClosureInvokingMethod { |
| |
| private final Closure callable; |
| private final CachedClass declaringClass; |
| private final ParameterTypes pt; |
| private final String name; |
| |
| /** |
| * |
| * @param name The name of the MetaMethod |
| * @param declaringClass The class which declared the MetaMethod |
| * @param c The closure that this ClosureMetaMethod will invoke when called |
| */ |
| public ClosureStaticMetaMethod(String name, Class declaringClass, Closure c) { |
| pt = new ParameterTypes(c.getParameterTypes()); |
| this.callable = c; |
| this.declaringClass = ReflectionCache.getCachedClass(declaringClass); |
| this.name = name; |
| } |
| |
| public Object invoke(Object object, Object[] arguments) { |
| Closure cloned = (Closure) callable.clone(); |
| cloned.setDelegate(object); |
| return cloned.call(arguments); |
| } |
| |
| public int getModifiers() { |
| return Modifier.PUBLIC | Modifier.STATIC; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public Class getReturnType() { |
| return Object.class; |
| } |
| |
| public CachedClass getDeclaringClass() { |
| return this.declaringClass; |
| } |
| |
| public ParameterTypes getParamTypes() { |
| return pt; |
| } |
| |
| /** |
| * Retrieves the closure that is invoked by this MetaMethod |
| * |
| * @return The closure |
| */ |
| public Closure getClosure() { |
| return this.callable; |
| } |
| } |