package com.googlecode.prolog_cafe.builtin;
import com.googlecode.prolog_cafe.lang.*;
/**
'$get_level'/1
@author Mutsunori Banbara (banbara@kobe-u.ac.jp)
@author Naoyuki Tamura (tamura@kobe-u.ac.jp)
@version 1.0
*/
public class PRED_$get_level_1 extends Predicate.P1 {
public PRED_$get_level_1(Term a1, Operation cont) {
arg1 = a1;
this.cont = cont;
}
public Operation exec(Prolog engine) {
// engine.setB0();
Term a1;
a1 = arg1;
if (! a1.unify(new IntegerTerm(engine.B0), engine.trail)) {
return engine.fail();
}
return cont;
}
}