package jp.ac.kobe_u.cs.prolog.builtin;
import jp.ac.kobe_u.cs.prolog.lang.IllegalTypeException;
import jp.ac.kobe_u.cs.prolog.lang.IntegerTerm;
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.Term;
import jp.ac.kobe_u.cs.prolog.lang.VariableTerm;
/*
This file is generated by Prolog Cafe.
PLEASE DO NOT EDIT!
*/
/**
<code>'$builtin_memq'/2</code> defined in builtins.pl<br>
@author Mutsunori Banbara (banbara@kobe-u.ac.jp)
@author Naoyuki Tamura (tamura@kobe-u.ac.jp)
@version 1.0
*/
class PRED_$builtin_memq_2 extends Predicate {
static Predicate _$builtin_memq_2_top = new PRED_$builtin_memq_2_top();
static Predicate _$builtin_memq_2_sub_1 = new PRED_$builtin_memq_2_sub_1();
static Predicate _$builtin_memq_2_1 = new PRED_$builtin_memq_2_1();
static Predicate _$builtin_memq_2_2 = new PRED_$builtin_memq_2_2();
public Term arg1, arg2;
public PRED_$builtin_memq_2(Term a1, Term a2, Predicate cont) {
arg1 = a1;
arg2 = a2;
this.cont = cont;
}
public PRED_$builtin_memq_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 "$builtin_memq(" + arg1 + "," + arg2 + ")";
}
public Predicate exec(Prolog engine) {
engine.aregs[1] = arg1;
engine.aregs[2] = arg2;
engine.cont = cont;
return _$builtin_memq_2_top;
}
}
class PRED_$builtin_memq_2_top extends PRED_$builtin_memq_2 {
public Predicate exec(Prolog engine) {
engine.setB0();
return engine.jtry(_$builtin_memq_2_1, _$builtin_memq_2_sub_1);
}
}
class PRED_$builtin_memq_2_sub_1 extends PRED_$builtin_memq_2 {
public Predicate exec(Prolog engine) {
return engine.trust(_$builtin_memq_2_2);
}
}
class PRED_$builtin_memq_2_1 extends PRED_$builtin_memq_2 {
public Predicate exec(Prolog engine) {
// '$builtin_memq'(A,[B|C]):-A==B,!
Term a1, a2, a3, a4;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
cont = engine.cont;
// '$builtin_memq'(A,[B|C]):-['$get_level'(D),'$equality_of_term'(A,B),'$cut'(D)]
a2 = a2.dereference();
if (a2.isList()){
Term[] args = {((ListTerm)a2).car(), ((ListTerm)a2).cdr()};
a3 = args[0];
} else if (a2.isVariable()){
a3 = new VariableTerm(engine);
((VariableTerm) a2).bind(new ListTerm(a3, new VariableTerm(engine)), engine.trail);
} else {
return engine.fail();
}
a4 = new VariableTerm(engine);
//START inline expansion of $get_level(a(4))
if (! a4.unify(new IntegerTerm(engine.B0), engine.trail)) {
return engine.fail();
}
//END inline expansion
//START inline expansion of $equality_of_term(a(1),a(3))
a1 = a1.dereference();
a3 = a3.dereference();
if (! a1.equals(a3)) {
return engine.fail();
}
//END inline expansion
//START inline expansion of $cut(a(4))
a4 = a4.dereference();
if (! a4.isInteger()) {
throw new IllegalTypeException("integer", a4);
} else {
engine.cut(((IntegerTerm) a4).intValue());
}
//END inline expansion
return cont;
}
}
class PRED_$builtin_memq_2_2 extends PRED_$builtin_memq_2 {
public Predicate exec(Prolog engine) {
// '$builtin_memq'(A,[B|C]):-'$builtin_memq'(A,C)
Term a1, a2, a3;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
cont = engine.cont;
// '$builtin_memq'(A,[B|C]):-['$builtin_memq'(A,C)]
a2 = a2.dereference();
if (a2.isList()){
Term[] args = {((ListTerm)a2).car(), ((ListTerm)a2).cdr()};
a3 = args[1];
} else if (a2.isVariable()){
a3 = new VariableTerm(engine);
((VariableTerm) a2).bind(new ListTerm(new VariableTerm(engine), a3), engine.trail);
} else {
return engine.fail();
}
engine.aregs[1] = a1;
engine.aregs[2] = a3;
engine.cont = cont;
return _$builtin_memq_2_top;
}
}