org.codehaus.groovy.runtime.callsite.PogoMetaClassSite Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.GroovyObject;
import groovy.lang.GroovyRuntimeException;
import groovy.lang.MetaClass;
import groovy.lang.MissingMethodException;
import org.codehaus.groovy.runtime.ScriptBytecodeAdapter;
import org.codehaus.groovy.runtime.metaclass.MissingMethodExecutionFailed;
/**
*
* @author Alex Tkachman
*/
public class PogoMetaClassSite extends MetaClassSite {
public PogoMetaClassSite(CallSite site, MetaClass metaClass) {
super(site, metaClass);
}
public final Object call(Object receiver, Object[] args) throws Throwable {
if (checkCall(receiver)) {
try {
try {
return metaClass.invokeMethod(receiver, name, args);
} catch (MissingMethodException e) {
if (e instanceof MissingMethodExecutionFailed) {
throw (MissingMethodException)e.getCause();
} else if (receiver.getClass() == e.getType() && e.getMethod().equals(name)) {
// in case there's nothing else, invoke the object's own invokeMethod()
return ((GroovyObject)receiver).invokeMethod(name, args);
} else {
throw e;
}
}
} catch (GroovyRuntimeException gre) {
throw ScriptBytecodeAdapter.unwrap(gre);
}
} else {
return CallSiteArray.defaultCall(this, receiver, args);
}
}
protected final boolean checkCall(Object receiver) {
return receiver instanceof GroovyObject && ((GroovyObject)receiver).getMetaClass() == metaClass;
}
public final Object callCurrent(GroovyObject receiver, Object[] args) throws Throwable {
if (checkCall(receiver)) {
try {
try {
return metaClass.invokeMethod(receiver, name, args);
} catch (MissingMethodException e) {
if (e instanceof MissingMethodExecutionFailed) {
throw (MissingMethodException)e.getCause();
} else if (receiver.getClass() == e.getType() && e.getMethod().equals(name)) {
// in case there's nothing else, invoke the object's own invokeMethod()
return ((GroovyObject)receiver).invokeMethod(name, args);
} else {
throw e;
}
}
} catch (GroovyRuntimeException gre) {
throw ScriptBytecodeAdapter.unwrap(gre);
}
} else {
return CallSiteArray.defaultCallCurrent(this, receiver, args);
}
}
}