Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaKlass.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaKlass.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,104 @@ +/* + * Copyright 2004-2007 Sun Microsystems, Inc. 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. + * + * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +package sun.jvm.hotspot.utilities.soql; + +import java.util.*; +import sun.jvm.hotspot.oops.*; +import sun.jvm.hotspot.utilities.*; + +/** + This is JavaScript wrapper for Klass. +*/ +public abstract class JSJavaKlass { + private static final int FIELD_SUPER_CLASS = 0; + private static final int FIELD_NAME = 1; + private static final int FIELD_IS_ARRAY_CLASS = 2; + private static final int FIELD_UNDEFINED = -1; + + public JSJavaKlass(Klass klass, JSJavaFactory factory) { + this.factory = factory; + this.klass = klass; + } + + public final Klass getKlass() { + return klass; + } + + public JSJavaClass getJSJavaClass() { + return (JSJavaClass) factory.newJSJavaObject(getKlass().getJavaMirror()); + } + + public Object getMetaClassFieldValue(String name) { + int fieldID = getFieldID(name); + switch (fieldID) { + case FIELD_SUPER_CLASS: { + JSJavaKlass jk = factory.newJSJavaKlass(getKlass().getSuper()); + return (jk != null) ? jk.getJSJavaClass() : null; + } + case FIELD_NAME: + return getName(); + case FIELD_IS_ARRAY_CLASS: + return Boolean.valueOf(isArray()); + case FIELD_UNDEFINED: + default: + return ScriptObject.UNDEFINED; + } + } + + public boolean hasMetaClassField(String name) { + return getFieldID(name) != FIELD_UNDEFINED; + } + + + public String[] getMetaClassFieldNames() { + String[] res = { "name", "superClass", "isArrayClass" }; + return res; + } + + public abstract String getName(); + public abstract boolean isArray(); + + //-- Internals only below this point + private static Map fields = new HashMap(); + private static void addField(String name, int fieldId) { + fields.put(name, new Integer(fieldId)); + } + + private static int getFieldID(String name) { + Integer res = (Integer) fields.get(name); + return (res != null)? res.intValue() : FIELD_UNDEFINED; + } + + static { + addField("base", FIELD_SUPER_CLASS); + addField("baseClass", FIELD_SUPER_CLASS); + addField("superClass", FIELD_SUPER_CLASS); + addField("name", FIELD_NAME); + addField("isArrayClass", FIELD_IS_ARRAY_CLASS); + } + + protected final JSJavaFactory factory; + private final Klass klass; +}