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>merge/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
*/
public class PRED_merge_3 extends Predicate {
static SymbolTerm s1 = SymbolTerm.makeSymbol("var");
static SymbolTerm s2 = SymbolTerm.makeSymbol("merge", 3);
static IntegerTerm si3 = new IntegerTerm(1);
static IntegerTerm si4 = new IntegerTerm(2);
static IntegerTerm si5 = new IntegerTerm(0);
static SymbolTerm s6 = SymbolTerm.makeSymbol("=<");
static Predicate _merge_3_sub_1 = new PRED_merge_3_sub_1();
static Predicate _merge_3_sub_2 = new PRED_merge_3_sub_2();
static Predicate _merge_3_1 = new PRED_merge_3_1();
static Predicate _merge_3_2 = new PRED_merge_3_2();
static Predicate _merge_3_3 = new PRED_merge_3_3();
public Term arg1, arg2, arg3;
public PRED_merge_3(Term a1, Term a2, Term a3, Predicate cont) {
arg1 = a1;
arg2 = a2;
arg3 = a3;
this.cont = cont;
}
public PRED_merge_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 "merge(" + 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(_merge_3_1, _merge_3_sub_1);
}
}
class PRED_merge_3_sub_1 extends PRED_merge_3 {
public Predicate exec(Prolog engine) {
return engine.retry(_merge_3_2, _merge_3_sub_2);
}
}
class PRED_merge_3_sub_2 extends PRED_merge_3 {
public Predicate exec(Prolog engine) {
return engine.trust(_merge_3_3);
}
}
class PRED_merge_3_1 extends PRED_merge_3 {
public Predicate exec(Prolog engine) {
// merge(A,B,C):-var(A),!,illarg(var,merge(A,B,C),1)
Term a1, a2, a3, a4, a5;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// merge(A,B,C):-['$get_level'(D),var(A),'$cut'(D),illarg(var,merge(A,B,C),1)]
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 var(a(1))
a1 = a1.dereference();
if (! a1.isVariable()) {
return engine.fail();
}
//END inline expansion
//START inline expansion of $cut(a(4))
a4 = a4.dereference();
if (! a4.isInteger()) {
throw new IllegalTypeException("integer", a4);
} else {
engine.cut(((IntegerTerm) a4).intValue());
}
//END inline expansion
Term[] y1 = {a1, a2, a3};
a5 = new StructureTerm(s2, y1);
return new PRED_illarg_3(s1, a5, si3, cont);
}
}
class PRED_merge_3_2 extends PRED_merge_3 {
public Predicate exec(Prolog engine) {
// merge(A,B,C):-var(B),!,illarg(var,merge(A,B,C),2)
Term a1, a2, a3, a4, a5;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// merge(A,B,C):-['$get_level'(D),var(B),'$cut'(D),illarg(var,merge(A,B,C),2)]
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 var(a(2))
a2 = a2.dereference();
if (! a2.isVariable()) {
return engine.fail();
}
//END inline expansion
//START inline expansion of $cut(a(4))
a4 = a4.dereference();
if (! a4.isInteger()) {
throw new IllegalTypeException("integer", a4);
} else {
engine.cut(((IntegerTerm) a4).intValue());
}
//END inline expansion
Term[] y1 = {a1, a2, a3};
a5 = new StructureTerm(s2, y1);
return new PRED_illarg_3(s1, a5, si4, cont);
}
}
class PRED_merge_3_3 extends PRED_merge_3 {
public Predicate exec(Prolog engine) {
// merge(A,B,C):-'$merge'(A,B,D,0,=<),C=D
Term a1, a2, a3, a4;
Predicate p1;
Predicate cont;
a1 = engine.aregs[1];
a2 = engine.aregs[2];
a3 = engine.aregs[3];
cont = engine.cont;
// merge(A,B,C):-['$merge'(A,B,D,0,=<),'$unify'(C,D)]
a4 = new VariableTerm(engine);
p1 = new PRED_$unify_2(a3, a4, cont);
return new PRED_$merge_5(a1, a2, a4, si5, s6, p1);
}
}