groovy-sdk-2.4.3.zip

/* * Copyright 2003-2013 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; /** * This is a generated class used internally during the writing of bytecode within the CallSiteWriter logic. * This is not a class exposed to users, as is the case with almost all classes in the org.codehaus.groovy packages. * <p> * The purpose is the reduction of the size of the bytecode. Consider creating a three element Object[] with null values: * <pre> * ANEWARRAY java/lang/Object * DUP * ICONST_0 * ACONST_NULL * AASTORE * DUP * ICONST_1 * ACONST_NULL * AASTORE * DUP * ICONST_2 * ACONST_NULL * AASTORE * </pre> * with ArrayUtils you can have it like this: * <pre> * ACONST_NULL * ACONST_NULL * ACONST_NULL * INVOKESTATIC ArrayUtils.createArray(Object,Object,Object) * </pre> * The number of needed instructions is thus reduced from 15 to 4. For every entry we save 3 bytecode instructions. * This allows better readable bytecode and it allows the JIT to see less bytecode to optimize, helping under the * inlining threshold here or there. * <p> * So even though the class is ugly, there are good reason to have this in Groovy, even if the class makes * absolutely no sense in normal Java. But it is not used in normal Java, but from the bytecode. */ public class ArrayUtil { private static final Object[] EMPTY = new Object[0] ; public static Object[] createArray() { return EMPTY; } public static Object[] createArray(Object arg0) { return new Object[]{ arg0}; } public static Object[] createArray(Object arg0, Object arg1) { return new Object[]{ arg0, arg1}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2) { return new Object[]{ arg0, arg1, arg2}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3) { return new Object[]{ arg0, arg1, arg2, arg3}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4) { return new Object[]{ arg0, arg1, arg2, arg3, arg4}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13, Object arg14) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13, Object arg14, Object arg15) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13, Object arg14, Object arg15, Object arg16) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15, arg16}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13, Object arg14, Object arg15, Object arg16, Object arg17) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15, arg16, arg17}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13, Object arg14, Object arg15, Object arg16, Object arg17, Object arg18) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15, arg16, arg17, arg18}; } public static Object[] createArray(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13, Object arg14, Object arg15, Object arg16, Object arg17, Object arg18, Object arg19) { return new Object[]{ arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15, arg16, arg17, arg18, arg19}; } publi