/**
* This file is part of Erjang - A JVM-based Erlang VM
*
* Copyright (c) 2009 by Trifork
*
* 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 erjang.m.ets;
import java.util.HashMap;
import erjang.EObject;
import erjang.ERT;
import erjang.ESeq;
import erjang.ETuple;
public class EMatchContext {
final HashMap<Integer, EObject> vars;
final EObject value;
private final Integer[] varnames;
EMatchContext (Integer[] varnames, EObject value) {
this.varnames = varnames;
this.vars = new HashMap<Integer,EObject>();
this.value = value;
}
public ESeq makeList() {
ESeq res = ERT.NIL;
for (int i = varnames.length-1; i >= 0; i--) {
res = res.cons(vars.get(varnames[i]));
}
return res;
}
public EObject makeTuple() {
ETuple res = ETuple.make(varnames.length);
for (int i = 0; i < varnames.length; i++) {
res.set(i+1, vars.get(varnames[i]));
}
return res;
}
}