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 *
 * Software distributed under the License is distributed on an "AS
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 * Copyright (C) 2010 Charles O Nutter <headius@headius.com>
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package org.jruby.ext.psych;

import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyModule;
import org.jruby.RubyObject;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import static org.jruby.runtime.Visibility.*;

public class PsychYamlTree {
    public static void initPsychYamlTree(Ruby runtime, RubyModule psych) {
        RubyModule visitors = (RubyModule)psych.getConstant("Visitors");
        RubyClass visitor = (RubyClass)visitors.getConstant("Visitor");
        RubyClass psychYamlTree = runtime.defineClassUnder("YAMLTree", visitor, RubyObject.OBJECT_ALLOCATOR, visitors);

        psychYamlTree.defineAnnotatedMethods(PsychYamlTree.class);
    }

    @JRubyMethod(visibility = PRIVATE)
    public static IRubyObject private_iv_get(ThreadContext context, IRubyObject self, IRubyObject target, IRubyObject prop) {
        IRubyObject obj = (IRubyObject)target.getInternalVariables().getInternalVariable(prop.asJavaString());
        if (obj == null) obj = context.nil;

        return obj;
    }
}