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Diffstat (limited to 'trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeBoolean.java')
| -rw-r--r-- | trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeBoolean.java | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeBoolean.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeBoolean.java new file mode 100644 index 0000000..b6a106a --- /dev/null +++ b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeBoolean.java @@ -0,0 +1,170 @@ +/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (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.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Rhino code, released + * May 6, 1999. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1997-1999 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Norris Boyd + * Igor Bukanov + * Mike McCabe + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License Version 2 or later (the "GPL"), in which + * case the provisions of the GPL are applicable instead of those above. If + * you wish to allow use of your version of this file only under the terms of + * the GPL and not to allow others to use your version of this file under the + * MPL, indicate your decision by deleting the provisions above and replacing + * them with the notice and other provisions required by the GPL. If you do + * not delete the provisions above, a recipient may use your version of this + * file under either the MPL or the GPL. + * + * ***** END LICENSE BLOCK ***** */ + +package org.mozilla.javascript; + +/** + * This class implements the Boolean native object. + * See ECMA 15.6. + * @author Norris Boyd + */ +final class NativeBoolean extends IdScriptableObject +{ + static final long serialVersionUID = -3716996899943880933L; + + private static final Object BOOLEAN_TAG = new Object(); + + static void init(Scriptable scope, boolean sealed) + { + NativeBoolean obj = new NativeBoolean(false); + obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed); + } + + private NativeBoolean(boolean b) + { + booleanValue = b; + } + + public String getClassName() + { + return "Boolean"; + } + + public Object getDefaultValue(Class typeHint) { + // This is actually non-ECMA, but will be proposed + // as a change in round 2. + if (typeHint == ScriptRuntime.BooleanClass) + return ScriptRuntime.wrapBoolean(booleanValue); + return super.getDefaultValue(typeHint); + } + + protected void initPrototypeId(int id) + { + String s; + int arity; + switch (id) { + case Id_constructor: arity=1; s="constructor"; break; + case Id_toString: arity=0; s="toString"; break; + case Id_toSource: arity=0; s="toSource"; break; + case Id_valueOf: arity=0; s="valueOf"; break; + default: throw new IllegalArgumentException(String.valueOf(id)); + } + initPrototypeMethod(BOOLEAN_TAG, id, s, arity); + } + + public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope, + Scriptable thisObj, Object[] args) + { + if (!f.hasTag(BOOLEAN_TAG)) { + return super.execIdCall(f, cx, scope, thisObj, args); + } + int id = f.methodId(); + + if (id == Id_constructor) { + boolean b; + if (args.length == 0) { + b = false; + } else { + b = args[0] instanceof ScriptableObject && + ((ScriptableObject) args[0]).avoidObjectDetection() + ? true + : ScriptRuntime.toBoolean(args[0]); + } + if (thisObj == null) { + // new Boolean(val) creates a new boolean object. + return new NativeBoolean(b); + } + // Boolean(val) converts val to a boolean. + return ScriptRuntime.wrapBoolean(b); + } + + // The rest of Boolean.prototype methods require thisObj to be Boolean + + if (!(thisObj instanceof NativeBoolean)) + throw incompatibleCallError(f); + boolean value = ((NativeBoolean)thisObj).booleanValue; + + switch (id) { + + case Id_toString: + return value ? "true" : "false"; + + case Id_toSource: + return value ? "(new Boolean(true))" : "(new Boolean(false))"; + + case Id_valueOf: + return ScriptRuntime.wrapBoolean(value); + } + throw new IllegalArgumentException(String.valueOf(id)); + } + +// #string_id_map# + + protected int findPrototypeId(String s) + { + int id; +// #generated# Last update: 2007-05-09 08:15:31 EDT + L0: { id = 0; String X = null; int c; + int s_length = s.length(); + if (s_length==7) { X="valueOf";id=Id_valueOf; } + else if (s_length==8) { + c=s.charAt(3); + if (c=='o') { X="toSource";id=Id_toSource; } + else if (c=='t') { X="toString";id=Id_toString; } + } + else if (s_length==11) { X="constructor";id=Id_constructor; } + if (X!=null && X!=s && !X.equals(s)) id = 0; + break L0; + } +// #/generated# + return id; + } + + private static final int + Id_constructor = 1, + Id_toString = 2, + Id_toSource = 3, + Id_valueOf = 4, + MAX_PROTOTYPE_ID = 4; + +// #/string_id_map# + + private boolean booleanValue; +} |