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/**
* Copyright (c) Rich Hickey. All rights reserved.
* The use and distribution terms for this software are covered by the
* Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
* which can be found in the file CPL.TXT at the root of this distribution.
* By using this software in any fashion, you are agreeing to be bound by
* the terms of this license.
* You must not remove this notice, or any other, from this software.
**/
/* rich Mar 27, 2006 1:29:39 PM */
using System;
using System.Collections.Specialized;
namespace org.clojure.runtime
{
public class Namespace
{
/**
* String->Namespace
*/
static public HybridDictionary table = new HybridDictionary();
/**
* String->Symbol
*/
public HybridDictionary symbols = new HybridDictionary();
public String name;
static public Namespace globalNS = new Namespace("");
static public Namespace keywordNS = new KeywordNamespace("keyword");
class KeywordNamespace : Namespace{
public KeywordNamespace(String name) : base(name)
{
}
override public Symbol intern(String name)
{
Symbol sym = (Symbol) symbols[name];
if(sym == null)
symbols.Add(name, sym = new Keyword(name, this));
return sym;
}
};
Namespace(String name)
{
this.name = name;
table.Add(name, this);
}
static public Namespace find(String name)
{
return (Namespace) table[name];
}
static public Namespace findOrCreate(String name)
{
lock(table)
{
Namespace ns = find(name);
if(ns == null)
ns = new Namespace(name);
return ns;
}
}
virtual public Symbol intern(String name)
{
lock(symbols)
{
Symbol sym = (Symbol) symbols[name];
if(sym == null)
symbols.Add(name, sym = new Symbol(name, this));
return sym;
}
}
}
}
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