| /* |
| * 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.GroovyRuntimeException; |
| import org.codehaus.groovy.runtime.InvokerHelper; |
| import org.codehaus.groovy.runtime.NullObject; |
| import org.codehaus.groovy.runtime.ScriptBytecodeAdapter; |
| |
| public final class NullCallSite extends AbstractCallSite { |
| public NullCallSite(CallSite callSite) { |
| super(callSite); |
| } |
| |
| public Object call(Object receiver, Object[] args) throws Throwable { |
| if (receiver == null) { |
| try{ |
| return CallSiteArray.defaultCall(this, NullObject.getNullObject(), args); |
| } catch (GroovyRuntimeException gre) { |
| throw ScriptBytecodeAdapter.unwrap(gre); |
| } |
| } else { |
| return CallSiteArray.defaultCall(this, receiver, args); |
| } |
| } |
| |
| public Object getProperty(Object receiver) throws Throwable { |
| if (receiver == null) { |
| try{ |
| return InvokerHelper.getProperty(NullObject.getNullObject(), name); |
| } catch (GroovyRuntimeException gre) { |
| throw ScriptBytecodeAdapter.unwrap(gre); |
| } |
| } else { |
| return acceptGetProperty(receiver).getProperty(receiver); |
| } |
| } |
| } |