com.google.gwt.dev.js.ast.JsNormalScope Maven / Gradle / Ivy
/*
* Copyright 2011 Google Inc.
*
* 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 com.google.gwt.dev.js.ast;
import com.google.gwt.dev.util.StringInterner;
import com.google.gwt.dev.util.collect.Maps;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
/**
* A normal scope that has a parent and children.
*/
public class JsNormalScope extends JsNestingScope {
private Map names = Collections.emptyMap();
/**
* Create a scope with parent.
*/
public JsNormalScope(JsScope parent, String description) {
super(parent, description);
}
/**
* Returns an iterator for all the names defined by this scope.
*/
@Override
public Iterator getAllNames() {
return names.values().iterator();
}
/**
* Creates a new name in this scope.
*/
@Override
protected JsName doCreateName(String ident, String shortIdent) {
ident = StringInterner.get().intern(ident);
shortIdent = StringInterner.get().intern(shortIdent);
JsName name = new JsName(this, ident, shortIdent);
names = Maps.putOrdered(names, ident, name);
return name;
}
/**
* Attempts to find the name object for the specified ident, searching in this scope only.
*
* @return null if the identifier has no associated name
*/
@Override
protected JsName findExistingNameNoRecurse(String ident) {
return names.get(ident);
}
}