Examples of kodkod.ast.Expression.join()

kodkod.ast.Expression.join()
Returns the join of this and the specified expression. The effect of this method is the same as calling this.compose(JOIN, expr). @return this.compose(JOIN, expr)

      rangeDecls = rangeDecls.and(itr.next().decl);
    }
//    System.out.println(skolemDecl.expression());
    Expression skolemDomain = skolem;
    for(int i = 0, max = skolemDecl.variable().arity(); i < max; i++) { 
      skolemDomain = skolemDomain.join(Expression.UNIV);
    }
    return skolemDomain.in(Formula.TRUE.comprehension(rangeDecls));  
  }
  
  /**

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                a=a.deNOP(); s=cset(a); s2=cset(b);
                if (a instanceof Sig && ((Sig)a).isOne!=null && s2 instanceof BinaryExpression) {
                    BinaryExpression bin = (BinaryExpression)s2;
                    if (bin.op()==ExprOperator.PRODUCT && bin.left()==s) return bin.right();
                }
                return s.join(s2);
            case EQUALS:
                obj=visitThis(a);
                if (obj instanceof IntExpression) { i=(IntExpression)obj; f=i.eq(cint(b));}
                else { s=(Expression)obj; f=s.eq(cset(b)); }
                return k2pos(f,x);

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        ans2=ans2.forAll(d2);
        // Now, put everything together
        Formula ans=r.in(a.product(b)).and(ans1).and(ans2);
        if (ab.op==ExprBinary.Op.ISSEQ_ARROW_LONE) {
            Expression rr=r;
            while(rr.arity()>1) rr=rr.join(Relation.UNIV);
            ans=rr.difference(rr.join(A4Solution.KK_NEXT)).in(A4Solution.KK_ZERO).and(ans);
        }
        return ans;
    }

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        // Now, put everything together
        Formula ans=r.in(a.product(b)).and(ans1).and(ans2);
        if (ab.op==ExprBinary.Op.ISSEQ_ARROW_LONE) {
            Expression rr=r;
            while(rr.arity()>1) rr=rr.join(Relation.UNIV);
            ans=rr.difference(rr.join(A4Solution.KK_NEXT)).in(A4Solution.KK_ZERO).and(ans);
        }
        return ans;
    }


    /*===========================*/

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