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.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>'$rm_redundant_vars'/2</code> defined in builtins.pl<br>
@author Mutsunori Banbara (banbara@kobe-u.ac.jp)
@author Naoyuki Tamura (tamura@kobe-u.ac.jp)
@version 1.0
*/
class PRED_$rm_redundant_vars_2 extends Predicate {
static SymbolTerm s1 = SymbolTerm.makeSymbol("[]");
static SymbolTerm s2 = SymbolTerm.makeSymbol("=", 2);
static SymbolTerm s3 = SymbolTerm.makeSymbol("_");
static Predicate _$rm_redundant_vars_2_top = new PRED_$rm_redundant_vars_2_top();
static Predicate _fail_0 = new PRED_fail_0();
static Predicate _$rm_redundant_vars_2_var = new PRED_$rm_redundant_vars_2_var();
static Predicate _$rm_redundant_vars_2_var_1 = new PRED_$rm_redundant_vars_2_var_1();
static Predicate _$rm_redundant_vars_2_var_2 = new PRED_$rm_redundant_vars_2_var_2();
static Predicate _$rm_redundant_vars_2_lis = new PRED_$rm_redundant_vars_2_lis();
static Predicate _$rm_redundant_vars_2_lis_1 = new PRED_$rm_redundant_vars_2_lis_1();
static Predicate _$rm_redundant_vars_2_1 = new PRED_$rm_redundant_vars_2_1();
static Predicate _$rm_redundant_vars_2_2 = new PRED_$rm_redundant_vars_2_2();
static Predicate _$rm_redundant_vars_2_3 = new PRED_$rm_redundant_vars_2_3();
public Term arg1, arg2;
public PRED_$rm_redundant_vars_2(Term a1, Term a2, Predicate cont) {
arg1 = a1;
arg2 = a2;
this.cont = cont;
}
public PRED_$rm_redundant_vars_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 "$rm_redundant_vars(" + arg1 + "," + arg2 + ")";
}
public Predicate exec(Prolog engine) {
engine.aregs[1] = arg1;
engine.aregs[2] = arg2;
engine.cont = cont;
return _$rm_redundant_vars_2_top;
}
}
class PRED_$rm_redundant_vars_2_top extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
engine.setB0();
return engine.switch_on_term(_$rm_redundant_vars_2_var, _fail_0, _fail_0, _$rm_redundant_vars_2_1, _fail_0, _$rm_redundant_vars_2_lis);
}
}
class PRED_$rm_redundant_vars_2_var extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
return engine.jtry(_$rm_redundant_vars_2_1, _$rm_redundant_vars_2_var_1);
}
}
class PRED_$rm_redundant_vars_2_var_1 extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
return engine.retry(_$rm_redundant_vars_2_2, _$rm_redundant_vars_2_var_2);
}
}
class PRED_$rm_redundant_vars_2_var_2 extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
return engine.trust(_$rm_redundant_vars_2_3);
}
}
class PRED_$rm_redundant_vars_2_lis extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
return engine.jtry(_$rm_redundant_vars_2_2, _$rm_redundant_vars_2_lis_1);
}
}
class PRED_$rm_redundant_vars_2_lis_1 extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
return engine.trust(_$rm_redundant_vars_2_3);
}
}
class PRED_$rm_redundant_vars_2_1 extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
// '$rm_redundant_vars'([],[]):-!
Term a1, a2;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
cont = engine.cont;
// '$rm_redundant_vars'([],[]):-['$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();
}
a2 = a2.dereference();
if (a2.isSymbol()){
if (! a2.equals(s1))
return engine.fail();
} else if (a2.isVariable()){
((VariableTerm) a2).bind(s1, engine.trail);
} else {
return engine.fail();
}
//START inline expansion of $neck_cut
engine.neckCut();
//END inline expansion
return cont;
}
}
class PRED_$rm_redundant_vars_2_2 extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
// '$rm_redundant_vars'(['_'=A|B],C):-!,'$rm_redundant_vars'(B,C)
Term a1, a2, a3, a4;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
cont = engine.cont;
// '$rm_redundant_vars'(['_'=A|B],C):-['$neck_cut','$rm_redundant_vars'(B,C)]
a1 = a1.dereference();
if (a1.isList()){
Term[] args = {((ListTerm)a1).car(), ((ListTerm)a1).cdr()};
a3 = args[0];
a4 = args[1];
} else if (a1.isVariable()){
a3 = new VariableTerm(engine);
a4 = new VariableTerm(engine);
((VariableTerm) a1).bind(new ListTerm(a3, a4), engine.trail);
} else {
return engine.fail();
}
a3 = a3.dereference();
if (a3.isStructure()){
if (! s2.equals(((StructureTerm)a3).functor()))
return engine.fail();
Term[] args = ((StructureTerm)a3).args();
if (! s3.unify(args[0], engine.trail))
return engine.fail();
} else if (a3.isVariable()){
Term[] args = {s3, new VariableTerm(engine)};
((VariableTerm) a3).bind(new StructureTerm(s2, args), engine.trail);
} else {
return engine.fail();
}
//START inline expansion of $neck_cut
engine.neckCut();
//END inline expansion
engine.aregs[1] = a4;
engine.aregs[2] = a2;
engine.cont = cont;
return _$rm_redundant_vars_2_top;
}
}
class PRED_$rm_redundant_vars_2_3 extends PRED_$rm_redundant_vars_2 {
public Predicate exec(Prolog engine) {
// '$rm_redundant_vars'([A|B],[A|C]):-'$rm_redundant_vars'(B,C)
Term a1, a2, a3, a4, a5;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
cont = engine.cont;
// '$rm_redundant_vars'([A|B],[A|C]):-['$rm_redundant_vars'(B,C)]
a1 = a1.dereference();
if (a1.isList()){
Term[] args = {((ListTerm)a1).car(), ((ListTerm)a1).cdr()};
a3 = args[0];
a4 = args[1];
} else if (a1.isVariable()){
a3 = new VariableTerm(engine);
a4 = new VariableTerm(engine);
((VariableTerm) a1).bind(new ListTerm(a3, a4), engine.trail);
} else {
return engine.fail();
}
a2 = a2.dereference();
if (a2.isList()){
Term[] args = {((ListTerm)a2).car(), ((ListTerm)a2).cdr()};
if (! a3.unify(args[0], engine.trail))
return engine.fail();
a5 = args[1];
} else if (a2.isVariable()){
a5 = new VariableTerm(engine);
((VariableTerm) a2).bind(new ListTerm(a3, a5), engine.trail);
} else {
return engine.fail();
}
engine.aregs[1] = a4;
engine.aregs[2] = a5;
engine.cont = cont;
return _$rm_redundant_vars_2_top;
}
}