/*
 * Copyright 2009 Yuichiro Moriguchi
 *
 * 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 net.morilib.lisp.nano;

public class SubrInteractionEnvironment extends Subr {
	
	
	@Override
	public Datum eval(Datum body, Environment env, LispMessage mesg) {
		if(body != Nil.NIL) {
			throw mesg.getError("err.argument", symbolName);
			//throw new LispException("invalid arguments");
		}
		
		return EnvironmentObject.newInteractionEnv(env);
	}

}
