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author | Egil Moeller <egil.moller@freecode.no> | 2010-03-22 00:16:53 +0100 |
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committer | Egil Moeller <egil.moller@freecode.no> | 2010-03-22 00:16:53 +0100 |
commit | fc00cfedd6c25d1634a1e0d28a7b7bc5f42e1cd7 (patch) | |
tree | 928419d6bfe794865e4b8f0634bd792f795c4b8a /trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Arguments.java | |
parent | 0fdab3db005c4fa31fb8306b573c0b35073d3e56 (diff) | |
parent | d56b9b3b82cdebcaeb00eec0fcb4326ad21adaa8 (diff) | |
download | etherpad-fc00cfedd6c25d1634a1e0d28a7b7bc5f42e1cd7.tar.gz etherpad-fc00cfedd6c25d1634a1e0d28a7b7bc5f42e1cd7.tar.xz etherpad-fc00cfedd6c25d1634a1e0d28a7b7bc5f42e1cd7.zip |
Merge branch 'master' into plugin-framework
Diffstat (limited to 'trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Arguments.java')
-rw-r--r-- | trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Arguments.java | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Arguments.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Arguments.java deleted file mode 100644 index 954b078..0000000 --- a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Arguments.java +++ /dev/null @@ -1,311 +0,0 @@ -/* -*- 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 - * - * 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 "arguments" object. - * - * See ECMA 10.1.8 - * - * @see org.mozilla.javascript.NativeCall - * @author Norris Boyd - */ -final class Arguments extends IdScriptableObject -{ - static final long serialVersionUID = 4275508002492040609L; - - public Arguments(NativeCall activation) - { - this.activation = activation; - - Scriptable parent = activation.getParentScope(); - setParentScope(parent); - setPrototype(ScriptableObject.getObjectPrototype(parent)); - - args = activation.originalArgs; - lengthObj = new Integer(args.length); - - NativeFunction f = activation.function; - calleeObj = f; - - int version = f.getLanguageVersion(); - if (version <= Context.VERSION_1_3 - && version != Context.VERSION_DEFAULT) - { - callerObj = null; - } else { - callerObj = NOT_FOUND; - } - } - - public String getClassName() - { - return "Object"; - } - - public boolean has(int index, Scriptable start) - { - if (0 <= index && index < args.length) { - if (args[index] != NOT_FOUND) { - return true; - } - } - return super.has(index, start); - } - - public Object get(int index, Scriptable start) - { - if (0 <= index && index < args.length) { - Object value = args[index]; - if (value != NOT_FOUND) { - if (sharedWithActivation(index)) { - NativeFunction f = activation.function; - String argName = f.getParamOrVarName(index); - value = activation.get(argName, activation); - if (value == NOT_FOUND) Kit.codeBug(); - } - return value; - } - } - return super.get(index, start); - } - - private boolean sharedWithActivation(int index) - { - NativeFunction f = activation.function; - int definedCount = f.getParamCount(); - if (index < definedCount) { - // Check if argument is not hidden by later argument with the same - // name as hidden arguments are not shared with activation - if (index < definedCount - 1) { - String argName = f.getParamOrVarName(index); - for (int i = index + 1; i < definedCount; i++) { - if (argName.equals(f.getParamOrVarName(i))) { - return false; - } - } - } - return true; - } - return false; - } - - public void put(int index, Scriptable start, Object value) - { - if (0 <= index && index < args.length) { - if (args[index] != NOT_FOUND) { - if (sharedWithActivation(index)) { - String argName; - argName = activation.function.getParamOrVarName(index); - activation.put(argName, activation, value); - return; - } - synchronized (this) { - if (args[index] != NOT_FOUND) { - if (args == activation.originalArgs) { - args = args.clone(); - } - args[index] = value; - return; - } - } - } - } - super.put(index, start, value); - } - - public void delete(int index) - { - if (0 <= index && index < args.length) { - synchronized (this) { - if (args[index] != NOT_FOUND) { - if (args == activation.originalArgs) { - args = args.clone(); - } - args[index] = NOT_FOUND; - return; - } - } - } - super.delete(index); - } - -// #string_id_map# - - private static final int - Id_callee = 1, - Id_length = 2, - Id_caller = 3, - - MAX_INSTANCE_ID = 3; - - protected int getMaxInstanceId() - { - return MAX_INSTANCE_ID; - } - - protected int findInstanceIdInfo(String s) - { - int id; -// #generated# Last update: 2007-05-09 08:15:04 EDT - L0: { id = 0; String X = null; int c; - if (s.length()==6) { - c=s.charAt(5); - if (c=='e') { X="callee";id=Id_callee; } - else if (c=='h') { X="length";id=Id_length; } - else if (c=='r') { X="caller";id=Id_caller; } - } - if (X!=null && X!=s && !X.equals(s)) id = 0; - break L0; - } -// #/generated# - - if (id == 0) return super.findInstanceIdInfo(s); - - int attr; - switch (id) { - case Id_callee: - case Id_caller: - case Id_length: - attr = DONTENUM; - break; - default: throw new IllegalStateException(); - } - return instanceIdInfo(attr, id); - } - -// #/string_id_map# - - protected String getInstanceIdName(int id) - { - switch (id) { - case Id_callee: return "callee"; - case Id_length: return "length"; - case Id_caller: return "caller"; - } - return null; - } - - protected Object getInstanceIdValue(int id) - { - switch (id) { - case Id_callee: return calleeObj; - case Id_length: return lengthObj; - case Id_caller: { - Object value = callerObj; - if (value == UniqueTag.NULL_VALUE) { value = null; } - else if (value == null) { - NativeCall caller = activation.parentActivationCall; - if (caller != null) { - value = caller.get("arguments", caller); - } - } - return value; - } - } - return super.getInstanceIdValue(id); - } - - protected void setInstanceIdValue(int id, Object value) - { - switch (id) { - case Id_callee: calleeObj = value; return; - case Id_length: lengthObj = value; return; - case Id_caller: - callerObj = (value != null) ? value : UniqueTag.NULL_VALUE; - return; - } - super.setInstanceIdValue(id, value); - } - - Object[] getIds(boolean getAll) - { - Object[] ids = super.getIds(getAll); - if (getAll && args.length != 0) { - boolean[] present = null; - int extraCount = args.length; - for (int i = 0; i != ids.length; ++i) { - Object id = ids[i]; - if (id instanceof Integer) { - int index = ((Integer)id).intValue(); - if (0 <= index && index < args.length) { - if (present == null) { - present = new boolean[args.length]; - } - if (!present[index]) { - present[index] = true; - extraCount--; - } - } - } - } - if (extraCount != 0) { - Object[] tmp = new Object[extraCount + ids.length]; - System.arraycopy(ids, 0, tmp, extraCount, ids.length); - ids = tmp; - int offset = 0; - for (int i = 0; i != args.length; ++i) { - if (present == null || !present[i]) { - ids[offset] = new Integer(i); - ++offset; - } - } - if (offset != extraCount) Kit.codeBug(); - } - } - return ids; - } - -// Fields to hold caller, callee and length properties, -// where NOT_FOUND value tags deleted properties. -// In addition if callerObj == NULL_VALUE, it tags null for scripts, as -// initial callerObj == null means access to caller arguments available -// only in JS <= 1.3 scripts - private Object callerObj; - private Object calleeObj; - private Object lengthObj; - - private NativeCall activation; - -// Initially args holds activation.getOriginalArgs(), but any modification -// of its elements triggers creation of a copy. If its element holds NOT_FOUND, -// it indicates deleted index, in which case super class is queried. - private Object[] args; -} |