--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/objects/NativeBoolean.java 2020-04-15 18:48:36.000000000 +0530 +++ /dev/null 2020-04-15 18:48:36.000000000 +0530 @@ -1,189 +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.objects; - -import static jdk.nashorn.internal.lookup.Lookup.MH; -import static jdk.nashorn.internal.runtime.ECMAErrors.typeError; - -import java.lang.invoke.MethodHandle; -import java.lang.invoke.MethodHandles; -import java.lang.invoke.MethodType; -import jdk.dynalink.linker.GuardedInvocation; -import jdk.dynalink.linker.LinkRequest; -import jdk.nashorn.internal.objects.annotations.Attribute; -import jdk.nashorn.internal.objects.annotations.Constructor; -import jdk.nashorn.internal.objects.annotations.Function; -import jdk.nashorn.internal.objects.annotations.ScriptClass; -import jdk.nashorn.internal.runtime.JSType; -import jdk.nashorn.internal.runtime.PropertyMap; -import jdk.nashorn.internal.runtime.ScriptObject; -import jdk.nashorn.internal.runtime.ScriptRuntime; -import jdk.nashorn.internal.runtime.linker.PrimitiveLookup; - -/** - * ECMA 15.6 Boolean Objects. - */ - -@ScriptClass("Boolean") -public final class NativeBoolean extends ScriptObject { - private final boolean value; - - /** Method handle to create an object wrapper for a primitive boolean. */ - static final MethodHandle WRAPFILTER = findOwnMH("wrapFilter", MH.type(NativeBoolean.class, Object.class)); - /** Method handle to retrieve the Boolean prototype object. */ - private static final MethodHandle PROTOFILTER = findOwnMH("protoFilter", MH.type(Object.class, Object.class)); - - // initialized by nasgen - private static PropertyMap $nasgenmap$; - - private NativeBoolean(final boolean value, final ScriptObject proto, final PropertyMap map) { - super(proto, map); - this.value = value; - } - - NativeBoolean(final boolean flag, final Global global) { - this(flag, global.getBooleanPrototype(), $nasgenmap$); - } - - NativeBoolean(final boolean flag) { - this(flag, Global.instance()); - } - - @Override - public String safeToString() { - return "[Boolean " + toString() + "]"; - } - - @Override - public String toString() { - return Boolean.toString(getValue()); - } - - /** - * Get the value for this NativeBoolean - * @return true or false - */ - public boolean getValue() { - return booleanValue(); - } - - /** - * Get the value for this NativeBoolean - * @return true or false - */ - public boolean booleanValue() { - return value; - } - - @Override - public String getClassName() { - return "Boolean"; - } - - /** - * ECMA 15.6.4.2 Boolean.prototype.toString ( ) - * - * @param self self reference - * @return string representation of this boolean - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static String toString(final Object self) { - return getBoolean(self).toString(); - } - - /** - * ECMA 15.6.4.3 Boolean.prototype.valueOf ( ) - * - * @param self self reference - * @return value of this boolean - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static boolean valueOf(final Object self) { - return getBoolean(self); - } - - /** - * ECMA 15.6.2.1 new Boolean (value) - * - * @param newObj is the new operator used to instantiate this NativeBoolean - * @param self self reference - * @param value value of boolean - * @return the new NativeBoolean - */ - @Constructor(arity = 1) - public static Object constructor(final boolean newObj, final Object self, final Object value) { - final boolean flag = JSType.toBoolean(value); - - if (newObj) { - return new NativeBoolean(flag); - } - - return flag; - } - - private static Boolean getBoolean(final Object self) { - if (self instanceof Boolean) { - return ((Boolean)self); - } else if (self instanceof NativeBoolean) { - return ((NativeBoolean)self).getValue(); - } else if (self != null && self == Global.instance().getBooleanPrototype()) { - return false; - } else { - throw typeError("not.a.boolean", ScriptRuntime.safeToString(self)); - } - } - - /** - * Lookup the appropriate method for an invoke dynamic call. - * - * @param request The link request - * @param receiver The receiver for the call - * @return Link to be invoked at call site. - */ - public static GuardedInvocation lookupPrimitive(final LinkRequest request, final Object receiver) { - return PrimitiveLookup.lookupPrimitive(request, Boolean.class, new NativeBoolean((Boolean)receiver), WRAPFILTER, PROTOFILTER); - } - - /** - * Wrap a native boolean in a NativeBoolean object. - * - * @param receiver Native boolean. - * @return Wrapped object. - */ - @SuppressWarnings("unused") - private static NativeBoolean wrapFilter(final Object receiver) { - return new NativeBoolean((Boolean)receiver); - } - - @SuppressWarnings("unused") - private static Object protoFilter(final Object object) { - return Global.instance().getBooleanPrototype(); - } - - private static MethodHandle findOwnMH(final String name, final MethodType type) { - return MH.findStatic(MethodHandles.lookup(), NativeBoolean.class, name, type); - } -}