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.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>'$dcg_and'/3</code> defined in builtins.pl<br>
@author Mutsunori Banbara (banbara@kobe-u.ac.jp)
@author Naoyuki Tamura (tamura@kobe-u.ac.jp)
@version 1.0
*/
class PRED_$dcg_and_3 extends Predicate {
static SymbolTerm s1 = SymbolTerm.makeSymbol("true");
static SymbolTerm s2 = SymbolTerm.makeSymbol(",", 2);
static Predicate _$dcg_and_3_sub_1 = new PRED_$dcg_and_3_sub_1();
static Predicate _$dcg_and_3_sub_2 = new PRED_$dcg_and_3_sub_2();
static Predicate _$dcg_and_3_1 = new PRED_$dcg_and_3_1();
static Predicate _$dcg_and_3_2 = new PRED_$dcg_and_3_2();
static Predicate _$dcg_and_3_3 = new PRED_$dcg_and_3_3();
public Term arg1, arg2, arg3;
public PRED_$dcg_and_3(Term a1, Term a2, Term a3, Predicate cont) {
arg1 = a1;
arg2 = a2;
arg3 = a3;
this.cont = cont;
}
public PRED_$dcg_and_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 "$dcg_and(" + arg1 + "," + arg2 + "," + arg3 + ")";
}
public Predicate exec(Prolog engine) {
engine.aregs[1] = arg1;
engine.aregs[2] = arg2;
engine.aregs[3] = arg3;
engine.cont = cont;
engine.setB0();
return engine.jtry(_$dcg_and_3_1, _$dcg_and_3_sub_1);
}
}
class PRED_$dcg_and_3_sub_1 extends PRED_$dcg_and_3 {
public Predicate exec(Prolog engine) {
return engine.retry(_$dcg_and_3_2, _$dcg_and_3_sub_2);
}
}
class PRED_$dcg_and_3_sub_2 extends PRED_$dcg_and_3 {
public Predicate exec(Prolog engine) {
return engine.trust(_$dcg_and_3_3);
}
}
class PRED_$dcg_and_3_1 extends PRED_$dcg_and_3 {
public Predicate exec(Prolog engine) {
// '$dcg_and'(A,B,C):-A==true,!,C=B
Term a1, a2, a3, a4;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// '$dcg_and'(A,B,C):-['$get_level'(D),'$equality_of_term'(A,true),'$cut'(D),'$unify'(C,B)]
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),s(1))
a1 = a1.dereference();
if (! a1.equals(s1)) {
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
//START inline expansion of $unify(a(3),a(2))
if (! a3.unify(a2, engine.trail)) {
return engine.fail();
}
//END inline expansion
return cont;
}
}
class PRED_$dcg_and_3_2 extends PRED_$dcg_and_3 {
public Predicate exec(Prolog engine) {
// '$dcg_and'(A,B,C):-B==true,!,C=A
Term a1, a2, a3, a4;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// '$dcg_and'(A,B,C):-['$get_level'(D),'$equality_of_term'(B,true),'$cut'(D),'$unify'(C,A)]
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(2),s(1))
a2 = a2.dereference();
if (! a2.equals(s1)) {
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
//START inline expansion of $unify(a(3),a(1))
if (! a3.unify(a1, engine.trail)) {
return engine.fail();
}
//END inline expansion
return cont;
}
}
class PRED_$dcg_and_3_3 extends PRED_$dcg_and_3 {
public Predicate exec(Prolog engine) {
// '$dcg_and'(A,B,(A,B)):-true
Term a1, a2, a3;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// '$dcg_and'(A,B,(A,B)):-[]
a3 = a3.dereference();
if (a3.isStructure()){
if (! s2.equals(((StructureTerm)a3).functor()))
return engine.fail();
Term[] args = ((StructureTerm)a3).args();
if (! a1.unify(args[0], engine.trail))
return engine.fail();
if (! a2.unify(args[1], engine.trail))
return engine.fail();
} else if (a3.isVariable()){
Term[] args = {a1, a2};
((VariableTerm) a3).bind(new StructureTerm(s2, args), engine.trail);
} else {
return engine.fail();
}
return cont;
}
}