Package jp.ac.kobe_u.cs.prolog.builtin

Source Code of jp.ac.kobe_u.cs.prolog.builtin.PRED_$not_after_2

package jp.ac.kobe_u.cs.prolog.builtin;
import jp.ac.kobe_u.cs.prolog.lang.Predicate;
import jp.ac.kobe_u.cs.prolog.lang.Prolog;
import jp.ac.kobe_u.cs.prolog.lang.Term;
/*
This file is generated by Prolog Cafe.
PLEASE DO NOT EDIT!
*/
/**
<code>'$not_after'/2</code> defined in builtins.pl<br>
@author Mutsunori Banbara (banbara@kobe-u.ac.jp)
@author Naoyuki Tamura (tamura@kobe-u.ac.jp)
@version 1.0
*/
public class PRED_$not_after_2 extends Predicate {

    public Term arg1, arg2;

    public PRED_$not_after_2(Term a1, Term a2, Predicate cont) {
        arg1 = a1;
        arg2 = a2;
        this.cont = cont;
    }

    public PRED_$not_after_2(){}

    public void setArgument(Term[] args, Predicate cont) {
        arg1 = args[0];
        arg2 = args[1];
        this.cont = cont;
    }

    public int arity() { return 2; }

    public String toString() {
        return "$not_after(" + arg1 + "," + arg2 + ")";
    }

    public Predicate exec(Prolog engine) {
    // '$not_after'(A,B):-'$not_after'(A,B)
        engine.setB0();
        Term a1, a2;
        a1 = arg1;
        a2 = arg2;
    // '$not_after'(A,B):-['$not_after'(A,B)]
        //START inline expansion of $not_after(a(1),a(2))
        a1 = a1.dereference();
        a2 = a2.dereference();
        if (a1.compareTo(a2) > 0) {
            return engine.fail();
        }
        //END inline expansion
        return cont;
    }
}
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