| /* |
| * 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.GroovyInterceptable; |
| import groovy.lang.GroovyObject; |
| import groovy.lang.MetaClass; |
| import groovy.lang.MetaClassImpl; |
| import org.codehaus.groovy.reflection.ClassInfo; |
| import org.codehaus.groovy.runtime.GroovyCategorySupport; |
| import org.codehaus.groovy.runtime.InvokerHelper; |
| |
| import java.lang.reflect.Proxy; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.util.stream.IntStream; |
| |
| |
| public final class CallSiteArray { |
| public static final Object[] NOPARAM = new Object[0]; |
| public final CallSite[] array; |
| public final Class owner; |
| |
| public CallSiteArray(Class owner, final String[] names) { |
| this.owner = owner; |
| this.array = IntStream.range(0, names.length) |
| .mapToObj(i -> new AbstractCallSite(this, i, names[i])) |
| .toArray(CallSite[]::new); |
| } |
| |
| public static Object defaultCall(CallSite callSite, Object receiver, Object[] args) throws Throwable { |
| return createCallSite(callSite, receiver, args).call(receiver, args); |
| } |
| |
| public static Object defaultCallCurrent(CallSite callSite, GroovyObject receiver, Object[] args) throws Throwable { |
| return createCallCurrentSite(callSite, receiver, args, callSite.getArray().owner).callCurrent(receiver, args); |
| } |
| |
| public static Object defaultCallStatic(CallSite callSite, Class receiver, Object[] args) throws Throwable { |
| return createCallStaticSite(callSite, receiver, args).callStatic(receiver,args); |
| } |
| |
| public static Object defaultCallConstructor(CallSite callSite, Object receiver, Object[] args) throws Throwable { |
| return createCallConstructorSite(callSite, (Class) receiver, args).callConstructor(receiver, args); |
| } |
| |
| private static CallSite createCallStaticSite(CallSite callSite, final Class receiver, Object[] args) { |
| AccessController.doPrivileged((PrivilegedAction<Void>) () -> { |
| try { |
| Class.forName(receiver.getName(), true, receiver.getClassLoader()); |
| } catch (Exception e) { |
| // force <clinit> |
| } |
| return null; |
| }); |
| MetaClass metaClass = InvokerHelper.getMetaClass(receiver); |
| CallSite site = |
| metaClass instanceof MetaClassImpl |
| ? ((MetaClassImpl) metaClass).createStaticSite(callSite, args) |
| : new StaticMetaClassSite(callSite, metaClass); |
| |
| replaceCallSite(callSite, site); |
| return site; |
| } |
| |
| private static CallSite createCallConstructorSite(CallSite callSite, Class receiver, Object[] args) { |
| MetaClass metaClass = InvokerHelper.getMetaClass(receiver); |
| CallSite site = |
| metaClass instanceof MetaClassImpl |
| ? ((MetaClassImpl) metaClass).createConstructorSite(callSite, args) |
| : new MetaClassConstructorSite(callSite, metaClass); |
| |
| replaceCallSite(callSite, site); |
| return site; |
| } |
| |
| private static CallSite createCallCurrentSite(CallSite callSite, GroovyObject receiver, Object[] args, Class sender) { |
| CallSite site; |
| if (receiver instanceof GroovyInterceptable) { |
| site = new PogoInterceptableSite(callSite); |
| } else { |
| MetaClass metaClass = receiver.getMetaClass(); |
| Class theClass = metaClass.getTheClass(); |
| if (receiver.getClass() != theClass && !theClass.isInterface()) { |
| site = new PogoInterceptableSite(callSite); |
| } else if (metaClass instanceof MetaClassImpl) { |
| site = ((MetaClassImpl) metaClass).createPogoCallCurrentSite(callSite, sender, args); |
| } else { |
| site = new PogoMetaClassSite(callSite, metaClass); |
| } |
| } |
| |
| replaceCallSite(callSite, site); |
| return site; |
| } |
| |
| private static CallSite createProxySite(final CallSite callSite, final Object receiver) { |
| if (receiver instanceof GroovyObject) { |
| return new PogoInterceptableSite(callSite); |
| } else { |
| ClassInfo classInfo = ClassInfo.getClassInfo(receiver.getClass()); |
| MetaClass metaClass = classInfo.getMetaClass(receiver); |
| return new PojoMetaClassSite(callSite, metaClass); |
| } |
| } |
| |
| // for MetaClassImpl we try to pick meta method, |
| // otherwise or if method doesn't exist we make call via POJO meta class |
| private static CallSite createPojoSite(CallSite callSite, Object receiver, Object[] args) { |
| final Class klazz = receiver.getClass(); |
| MetaClass metaClass = InvokerHelper.getMetaClass(receiver); |
| if (!GroovyCategorySupport.hasCategoryInCurrentThread() && metaClass instanceof MetaClassImpl) { |
| final MetaClassImpl mci = (MetaClassImpl) metaClass; |
| final ClassInfo info = mci.getTheCachedClass().classInfo; |
| if (info.hasPerInstanceMetaClasses()) { |
| return new PerInstancePojoMetaClassSite(callSite, info); |
| } else { |
| return mci.createPojoCallSite(callSite, receiver, args); |
| } |
| } |
| |
| ClassInfo info = ClassInfo.getClassInfo(klazz); |
| if (info.hasPerInstanceMetaClasses()) { |
| return new PerInstancePojoMetaClassSite(callSite, info); |
| } else { |
| return new PojoMetaClassSite(callSite, metaClass); |
| } |
| } |
| |
| private static CallSite createPogoSite(CallSite callSite, Object receiver, Object[] args) { |
| if (receiver instanceof GroovyInterceptable) { |
| return new PogoInterceptableSite(callSite); |
| } |
| |
| MetaClass metaClass = ((GroovyObject)receiver).getMetaClass(); |
| |
| if (metaClass instanceof MetaClassImpl) { |
| return ((MetaClassImpl)metaClass).createPogoCallSite(callSite, args); |
| } |
| |
| return new PogoMetaClassSite(callSite, metaClass); |
| } |
| |
| private static CallSite createCallSite(CallSite callSite, Object receiver, Object[] args) { |
| if (receiver == null) { |
| return new NullCallSite(callSite); |
| } |
| |
| CallSite site; |
| if (receiver instanceof Class) { |
| site = createCallStaticSite(callSite, (Class) receiver, args); |
| } else if (Proxy.isProxyClass(receiver.getClass())) { |
| site = createProxySite(callSite, receiver); |
| } else if (receiver instanceof GroovyObject) { |
| site = createPogoSite(callSite, receiver, args); |
| } else { |
| site = createPojoSite(callSite, receiver, args); |
| } |
| |
| replaceCallSite(callSite, site); |
| return site; |
| } |
| |
| private static void replaceCallSite(CallSite oldSite, CallSite newSite) { |
| oldSite.getArray().array[oldSite.getIndex()] = newSite; |
| } |
| } |