From 98e2821b38a775737e42a2479a6bc65107210859 Mon Sep 17 00:00:00 2001 From: Elliot Kroo Date: Thu, 11 Mar 2010 15:21:30 -0800 Subject: reorganizing the first level of folders (trunk/branch folders are not the git way :) --- .../src/org/mozilla/javascript/NativeIterator.java | 260 --------------------- 1 file changed, 260 deletions(-) delete mode 100644 trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeIterator.java (limited to 'trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeIterator.java') diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeIterator.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeIterator.java deleted file mode 100644 index c61f417..0000000 --- a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeIterator.java +++ /dev/null @@ -1,260 +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. - * - * Contributor(s): - * Norris Boyd - * - * 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; - -import java.util.Iterator; - -/** - * This class implements iterator objects. See - * http://developer.mozilla.org/en/docs/New_in_JavaScript_1.7#Iterators - * - * @author Norris Boyd - */ -public final class NativeIterator extends IdScriptableObject { - private static final Object ITERATOR_TAG = new Object(); - - static void init(ScriptableObject scope, boolean sealed) { - // Iterator - NativeIterator iterator = new NativeIterator(); - iterator.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed); - - // Generator - NativeGenerator.init(scope, sealed); - - // StopIteration - NativeObject obj = new StopIteration(); - obj.setPrototype(getObjectPrototype(scope)); - obj.setParentScope(scope); - if (sealed) { obj.sealObject(); } - ScriptableObject.defineProperty(scope, STOP_ITERATION, obj, - ScriptableObject.DONTENUM); - // Use "associateValue" so that generators can continue to - // throw StopIteration even if the property of the global - // scope is replaced or deleted. - scope.associateValue(ITERATOR_TAG, obj); - } - - /** - * Only for constructing the prototype object. - */ - private NativeIterator() { - } - - private NativeIterator(Object objectIterator) { - this.objectIterator = objectIterator; - } - - /** - * Get the value of the "StopIteration" object. Note that this value - * is stored in the top-level scope using "associateValue" so the - * value can still be found even if a script overwrites or deletes - * the global "StopIteration" property. - * @param scope a scope whose parent chain reaches a top-level scope - * @return the StopIteration object - */ - public static Object getStopIterationObject(Scriptable scope) { - Scriptable top = ScriptableObject.getTopLevelScope(scope); - return ScriptableObject.getTopScopeValue(top, ITERATOR_TAG); - } - - private static final String STOP_ITERATION = "StopIteration"; - public static final String ITERATOR_PROPERTY_NAME = "__iterator__"; - - static class StopIteration extends NativeObject { - public String getClassName() { - return STOP_ITERATION; - } - - /* StopIteration has custom instanceof behavior since it - * doesn't have a constructor. - */ - public boolean hasInstance(Scriptable instance) { - return instance instanceof StopIteration; - } - } - - public String getClassName() { - return "Iterator"; - } - - protected void initPrototypeId(int id) { - String s; - int arity; - switch (id) { - case Id_constructor: arity=2; s="constructor"; break; - case Id_next: arity=0; s="next"; break; - case Id___iterator__: arity=1; s=ITERATOR_PROPERTY_NAME; break; - default: throw new IllegalArgumentException(String.valueOf(id)); - } - initPrototypeMethod(ITERATOR_TAG, id, s, arity); - } - - public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope, - Scriptable thisObj, Object[] args) - { - if (!f.hasTag(ITERATOR_TAG)) { - return super.execIdCall(f, cx, scope, thisObj, args); - } - int id = f.methodId(); - - if (id == Id_constructor) { - return jsConstructor(cx, scope, thisObj, args); - } - - if (!(thisObj instanceof NativeIterator)) - throw incompatibleCallError(f); - - NativeIterator iterator = (NativeIterator) thisObj; - - switch (id) { - - case Id_next: - return iterator.next(cx, scope); - - case Id___iterator__: - /// XXX: what about argument? SpiderMonkey apparently ignores it - return thisObj; - - default: - throw new IllegalArgumentException(String.valueOf(id)); - } - } - - /* the javascript constructor */ - private static Object jsConstructor(Context cx, Scriptable scope, - Scriptable thisObj, Object[] args) - { - if (args.length == 0 || args[0] == null || - args[0] == Undefined.instance) - { - throw ScriptRuntime.typeError1("msg.no.properties", - ScriptRuntime.toString(args[0])); - } - Scriptable obj = ScriptRuntime.toObject(scope, args[0]); - boolean keyOnly = args.length > 1 && ScriptRuntime.toBoolean(args[1]); - if (thisObj != null) { - // Called as a function. Convert to iterator if possible. - - // For objects that implement java.lang.Iterable or - // java.util.Iterator, have JavaScript Iterator call the underlying - // iteration methods - Iterator iterator = - VMBridge.instance.getJavaIterator(cx, scope, obj); - if (iterator != null) { - scope = ScriptableObject.getTopLevelScope(scope); - return cx.getWrapFactory().wrap(cx, scope, - new WrappedJavaIterator(iterator, scope), - WrappedJavaIterator.class); - } - - // Otherwise, just call the runtime routine - Scriptable jsIterator = ScriptRuntime.toIterator(cx, scope, obj, - keyOnly); - if (jsIterator != null) { - return jsIterator; - } - } - - // Otherwise, just set up to iterate over the properties of the object. - // Do not call __iterator__ method. - Object objectIterator = ScriptRuntime.enumInit(obj, cx, - keyOnly ? ScriptRuntime.ENUMERATE_KEYS_NO_ITERATOR - : ScriptRuntime.ENUMERATE_ARRAY_NO_ITERATOR); - ScriptRuntime.setEnumNumbers(objectIterator, true); - NativeIterator result = new NativeIterator(objectIterator); - result.setPrototype(NativeIterator.getClassPrototype(scope, - result.getClassName())); - result.setParentScope(scope); - return result; - } - - private Object next(Context cx, Scriptable scope) { - Boolean b = ScriptRuntime.enumNext(this.objectIterator); - if (!b.booleanValue()) { - // Out of values. Throw StopIteration. - throw new JavaScriptException( - NativeIterator.getStopIterationObject(scope), null, 0); - } - return ScriptRuntime.enumId(this.objectIterator, cx); - } - - static public class WrappedJavaIterator - { - WrappedJavaIterator(Iterator iterator, Scriptable scope) { - this.iterator = iterator; - this.scope = scope; - } - - public Object next() { - if (!iterator.hasNext()) { - // Out of values. Throw StopIteration. - throw new JavaScriptException( - NativeIterator.getStopIterationObject(scope), null, 0); - } - return iterator.next(); - } - - public Object __iterator__(boolean b) { - return this; - } - - private Iterator iterator; - private Scriptable scope; - } - -// #string_id_map# - - protected int findPrototypeId(String s) { - int id; -// #generated# Last update: 2007-06-11 09:43:19 EDT - L0: { id = 0; String X = null; - int s_length = s.length(); - if (s_length==4) { X="next";id=Id_next; } - else if (s_length==11) { X="constructor";id=Id_constructor; } - else if (s_length==12) { X="__iterator__";id=Id___iterator__; } - if (X!=null && X!=s && !X.equals(s)) id = 0; - break L0; - } -// #/generated# - return id; - } - - private static final int - Id_constructor = 1, - Id_next = 2, - Id___iterator__ = 3, - MAX_PROTOTYPE_ID = 3; - -// #/string_id_map# - - private Object objectIterator; -} - -- cgit v1.2.3-1-g7c22