/*
 *  Copyright 2008 Hannes Wallnoefer <hannes@helma.at>
 *
 *  Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.helma.javascript;

import org.helma.repository.Repository;
import org.helma.repository.Trackable;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.NativeObject;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.NativeArray;

/**
 * A scriptable object that keeps track of the resource it has been loaded from
 * so requests to load other stuff can look for local resources.
 */
public class ModuleScope extends NativeObject {

    Trackable source;
    Repository repository;
    String name;
    long checksum;
    Scriptable exports;
    private static final long serialVersionUID = -2409425841990094897L;

    public ModuleScope(String moduleName, Trackable source, Scriptable prototype, Context cx) {
        setParentScope(null);
        setPrototype(prototype);
        this.source = source;
        this.repository = source instanceof Repository ?
                (Repository) source : source.getParentRepository();
        this.name = moduleName;
        this.exports = cx.newObject(this);
        defineProperty("exports", exports,  DONTENUM | READONLY | PERMANENT);
        defineProperty("__exports__", cx.newArray(this, 0), DONTENUM);
        defineProperty("__name__", moduleName, DONTENUM);
        defineProperty("__path__", source.getPath(), DONTENUM);
    }

    public Repository getRepository() {
        return repository;
    }

    public void reset(Context cx) {
        delete("__shared__");     
        defineProperty("__exports__", cx.newArray(this, 0), DONTENUM);
    }

    public long getChecksum() {
        return checksum;
    }

    public void setChecksum(long checksum) {
        this.checksum = checksum;
    }

    public String getName() {
        return name;
    }

    public Scriptable getExports() {
        return exports;
    }

    @Override
    public String toString() {
        return "[ModuleScope " + source + "]";
    }

    @Override
    public Object getDefaultValue(Class hint) {
        if (hint == String.class || hint == null) {
            return toString();
        }
        return super.getDefaultValue(hint);
    }
}

@@ -1731,31 +1731,8 @@
 ENUM
- %7C READONLY %7C PERMANENT
 );%0A 
@@ -2032,32 +2032,130 @@
 t(Context cx) %7B%0A
+        this.exports = cx.newObject(this);%0A        defineProperty(%22exports%22, exports,  DONTENUM);%0A
         delete(%22

Fix bug where the exports object in shared modules is not updated on re-evaluation.