package data;

import syntaxtree.*;

public class Closure implements Value {

private Function fun;

private Env env;

public Closure(Function f, Env e){

fun = f;

env = e;

}

public Env getEnv(){

return env;

}

public Function getFunction(){

return fun;

}

public int compareTo(Value v){

int classCompare = getClass().getName().compareTo(v.getClass().getName());

if (classCompare != 0){

return classCompare;

}

Closure c = (Closure) v;

return fun.compareTo(c.getFunction());

}

public int hashCode(){

final int PRIME = 31;

int result = 1;

result = PRIME * result + ( (fun == null) ? 0 : fun.hashCode());

result = PRIME * result + ( (env == null) ? 0 : env.hashCode());

return result;

}

public boolean equals(Object o){

if (this == o ) return true;

if (o == null ) return false;

if (getClass() != o.getClass()) return false;

Closure c = (Closure) o;

if(!fun.equals(c.getFunction())) return false;

return env.equals(c.getEnv());

}

}