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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/LazilyLoadedCtor.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/LazilyLoadedCtor.java')
-rw-r--r-- | trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/LazilyLoadedCtor.java | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/LazilyLoadedCtor.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/LazilyLoadedCtor.java deleted file mode 100644 index 4153372..0000000 --- a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/LazilyLoadedCtor.java +++ /dev/null @@ -1,136 +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) 1997-2000 - * 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; - -import java.lang.reflect.*; - -/** - * Avoid loading classes unless they are used. - * - * <p> This improves startup time and average memory usage. - */ -public final class LazilyLoadedCtor implements java.io.Serializable { - private static final long serialVersionUID = 1L; - - private static final int STATE_BEFORE_INIT = 0; - private static final int STATE_INITIALIZING = 1; - private static final int STATE_WITH_VALUE = 2; - - private final ScriptableObject scope; - private final String propertyName; - private final String className; - private final boolean sealed; - private Object initializedValue; - private int state; - - public LazilyLoadedCtor(ScriptableObject scope, String propertyName, - String className, boolean sealed) - { - - this.scope = scope; - this.propertyName = propertyName; - this.className = className; - this.sealed = sealed; - this.state = STATE_BEFORE_INIT; - - scope.addLazilyInitializedValue(propertyName, 0, this, - ScriptableObject.DONTENUM); - } - - void init() - { - synchronized (this) { - if (state == STATE_INITIALIZING) - throw new IllegalStateException( - "Recursive initialization for "+propertyName); - if (state == STATE_BEFORE_INIT) { - state = STATE_INITIALIZING; - // Set value now to have something to set in finally block if - // buildValue throws. - Object value = Scriptable.NOT_FOUND; - try { - value = buildValue(); - } finally { - initializedValue = value; - state = STATE_WITH_VALUE; - } - } - } - } - - Object getValue() - { - if (state != STATE_WITH_VALUE) - throw new IllegalStateException(propertyName); - return initializedValue; - } - - private Object buildValue() - { - Class cl = Kit.classOrNull(className); - if (cl != null) { - try { - Object value = ScriptableObject.buildClassCtor(scope, cl, - sealed, false); - if (value != null) { - return value; - } - else { - // cl has own static initializer which is expected - // to set the property on its own. - value = scope.get(propertyName, scope); - if (value != Scriptable.NOT_FOUND) - return value; - } - } catch (InvocationTargetException ex) { - Throwable target = ex.getTargetException(); - if (target instanceof RuntimeException) { - throw (RuntimeException)target; - } - } catch (RhinoException ex) { - } catch (InstantiationException ex) { - } catch (IllegalAccessException ex) { - } catch (SecurityException ex) { - } - } - return Scriptable.NOT_FOUND; - } - -} |