package jp.ac.kobe_u.cs.prolog.builtin;
import jp.ac.kobe_u.cs.prolog.lang.IntegerTerm;
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.StructureTerm;
import jp.ac.kobe_u.cs.prolog.lang.SymbolTerm;
import jp.ac.kobe_u.cs.prolog.lang.Term;
import jp.ac.kobe_u.cs.prolog.lang.VariableTerm;
/*
This file is generated by Prolog Cafe.
PLEASE DO NOT EDIT!
*/
/**
<code>-> /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_$002D$003E_2 extends Predicate {
static SymbolTerm s1 = SymbolTerm.makeSymbol(":", 2);
static SymbolTerm s2 = SymbolTerm.makeSymbol("jp.ac.kobe_u.cs.prolog.builtin");
public Term arg1, arg2;
public PRED_$002D$003E_2(Term a1, Term a2, Predicate cont) {
arg1 = a1;
arg2 = a2;
this.cont = cont;
}
public PRED_$002D$003E_2(){}
public void setArgument(Term[] args, Predicate cont) {
arg1 = args[0];
arg2 = args[1];
this.cont = cont;
}
public int arity() { return 2; }
public String toString() {
return "->(" + arg1 + "," + arg2 + ")";
}
public Predicate exec(Prolog engine) {
// A->B:-call(A),!,call(B)
engine.setB0();
Term a1, a2, a3, a4, a5;
Predicate p1, p2;
a1 = arg1;
a2 = arg2;
// A->B:-['$get_level'(C),call('jp.ac.kobe_u.cs.prolog.builtin':A),'$cut'(C),call('jp.ac.kobe_u.cs.prolog.builtin':B)]
a3 = new VariableTerm(engine);
//START inline expansion of $get_level(a(3))
if (! a3.unify(new IntegerTerm(engine.B0), engine.trail)) {
return engine.fail();
}
//END inline expansion
Term[] y1 = {s2, a1};
a4 = new StructureTerm(s1, y1);
Term[] y2 = {s2, a2};
a5 = new StructureTerm(s1, y2);
p1 = new PRED_call_1(a5, cont);
p2 = new PRED_$cut_1(a3, p1);
return new PRED_call_1(a4, p2);
}
}