org.codehaus.groovy.runtime.callsite.StaticMetaClassSite Maven / Gradle / Ivy
/*
* 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.runtime.callsite;
import groovy.lang.GroovyRuntimeException;
import groovy.lang.MetaClass;
import org.codehaus.groovy.reflection.ClassInfo;
import org.codehaus.groovy.runtime.ScriptBytecodeAdapter;
/**
* Call site for invoking static methods
* meta class - cached
* method - not cached
*
* @author Alex Tkachman
*/
public class StaticMetaClassSite extends MetaClassSite {
private final ClassInfo classInfo;
private final int version;
public StaticMetaClassSite(CallSite site, MetaClass metaClass) {
super(site, metaClass);
classInfo = ClassInfo.getClassInfo(metaClass.getTheClass());
version = classInfo.getVersion();
}
private boolean checkCall(Object receiver) {
return receiver == metaClass.getTheClass()
&& version == classInfo.getVersion(); // metaClass still be valid
}
public final Object call(Object receiver, Object[] args) throws Throwable {
if (checkCall(receiver)) {
try {
return metaClass.invokeStaticMethod(receiver, name, args);
} catch (GroovyRuntimeException gre) {
throw ScriptBytecodeAdapter.unwrap(gre);
}
} else {
return CallSiteArray.defaultCall(this, receiver, args);
}
}
public final Object callStatic(Class receiver, Object[] args) throws Throwable {
if (checkCall(receiver)) {
try {
return metaClass.invokeStaticMethod(receiver, name, args);
} catch (GroovyRuntimeException gre) {
throw ScriptBytecodeAdapter.unwrap(gre);
}
} else {
return CallSiteArray.defaultCallStatic(this, receiver, args);
}
}
}