package jp.ac.kobe_u.cs.prolog.builtin;
import jp.ac.kobe_u.cs.prolog.lang.ListTerm;
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.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>'$add_operators'/3</code> defined in builtins.pl<br>
@author Mutsunori Banbara (banbara@kobe-u.ac.jp)
@author Naoyuki Tamura (tamura@kobe-u.ac.jp)
@version 1.0
*/
class PRED_$add_operators_3 extends Predicate {
static SymbolTerm s1 = SymbolTerm.makeSymbol("[]");
static Predicate _fail_0 = new PRED_fail_0();
static Predicate _$add_operators_3_var = new PRED_$add_operators_3_var();
static Predicate _$add_operators_3_var_1 = new PRED_$add_operators_3_var_1();
static Predicate _$add_operators_3_1 = new PRED_$add_operators_3_1();
static Predicate _$add_operators_3_2 = new PRED_$add_operators_3_2();
public Term arg1, arg2, arg3;
public PRED_$add_operators_3(Term a1, Term a2, Term a3, Predicate cont) {
arg1 = a1;
arg2 = a2;
arg3 = a3;
this.cont = cont;
}
public PRED_$add_operators_3(){}
public void setArgument(Term[] args, Predicate cont) {
arg1 = args[0];
arg2 = args[1];
arg3 = args[2];
this.cont = cont;
}
public int arity() { return 3; }
public String toString() {
return "$add_operators(" + arg1 + "," + arg2 + "," + arg3 + ")";
}
public Predicate exec(Prolog engine) {
engine.aregs[1] = arg1;
engine.aregs[2] = arg2;
engine.aregs[3] = arg3;
engine.cont = cont;
engine.setB0();
return engine.switch_on_term(_$add_operators_3_var, _fail_0, _fail_0, _$add_operators_3_1, _fail_0, _$add_operators_3_2);
}
}
class PRED_$add_operators_3_var extends PRED_$add_operators_3 {
public Predicate exec(Prolog engine) {
return engine.jtry(_$add_operators_3_1, _$add_operators_3_var_1);
}
}
class PRED_$add_operators_3_var_1 extends PRED_$add_operators_3 {
public Predicate exec(Prolog engine) {
return engine.trust(_$add_operators_3_2);
}
}
class PRED_$add_operators_3_1 extends PRED_$add_operators_3 {
public Predicate exec(Prolog engine) {
// '$add_operators'([],A,B):-!
Term a1, a2, a3;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// '$add_operators'([],A,B):-['$neck_cut']
a1 = a1.dereference();
if (a1.isSymbol()){
if (! a1.equals(s1))
return engine.fail();
} else if (a1.isVariable()){
((VariableTerm) a1).bind(s1, engine.trail);
} else {
return engine.fail();
}
//START inline expansion of $neck_cut
engine.neckCut();
//END inline expansion
return cont;
}
}
class PRED_$add_operators_3_2 extends PRED_$add_operators_3 {
public Predicate exec(Prolog engine) {
// '$add_operators'([A|B],C,D):-'$add_op'(A,C,D),'$add_operators'(B,C,D)
Term a1, a2, a3, a4, a5;
Predicate p1;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// '$add_operators'([A|B],C,D):-['$add_op'(A,C,D),'$add_operators'(B,C,D)]
a1 = a1.dereference();
if (a1.isList()){
Term[] args = {((ListTerm)a1).car(), ((ListTerm)a1).cdr()};
a4 = args[0];
a5 = args[1];
} else if (a1.isVariable()){
a4 = new VariableTerm(engine);
a5 = new VariableTerm(engine);
((VariableTerm) a1).bind(new ListTerm(a4, a5), engine.trail);
} else {
return engine.fail();
}
p1 = new PRED_$add_operators_3(a5, a2, a3, cont);
return new PRED_$add_op_3(a4, a2, a3, p1);
}
}