--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/ArgumentSetter.java 2020-04-15 18:49:38.000000000 +0530 +++ /dev/null 2020-04-15 18:49:38.000000000 +0530 @@ -1,68 +0,0 @@ -/* - * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package jdk.nashorn.internal.runtime; - -import static jdk.nashorn.internal.codegen.CompilerConstants.staticCallNoLookup; - -import jdk.nashorn.internal.codegen.CompilerConstants.Call; - -/** - * A class with static helper methods invoked from generated bytecode for setting values of parameters of variable-arity - * functions. - */ -public final class ArgumentSetter { - private ArgumentSetter() {} - - /** Method handle for setting a function argument at a given index in an arguments object. Used from generated bytecode */ - public static final Call SET_ARGUMENT = staticCallNoLookup(ArgumentSetter.class, "setArgument", void.class, Object.class, ScriptObject.class, int.class); - - /** Method handle for setting a function argument at a given index in an arguments array. Used from generated bytecode */ - public static final Call SET_ARRAY_ELEMENT = staticCallNoLookup(ArgumentSetter.class, "setArrayElement", void.class, Object.class, Object[].class, int.class); - - - /** - * Used from generated bytecode to invoke {@link ScriptObject#setArgument(int, Object)} without having to reorder - * the arguments on the stack. When we're generating a store into the argument, we first have the value on the - * stack, and only afterwards load the target object and the index. - * @param value the value to write at the given argument index. - * @param arguments the arguments object that we're writing the value to - * @param key the index of the argument - */ - public static void setArgument(final Object value, final ScriptObject arguments, final int key) { - arguments.setArgument(key, value); - } - - /** - * Used from generated bytecode to set a variable arity parameter - an array element - without having to reorder - * the arguments on the stack. When we're generating a store into the array, we first have the value on the - * stack, and only afterwards load the target array and the index. - * @param value the value to write at the given argument index. - * @param arguments the arguments array that we're writing the value to - * @param key the index of the argument - */ - public static void setArrayElement(final Object value, final Object[] arguments, final int key) { - arguments[key] = value; - } -}