Java Code Examples for kodkod.ast.IntExpression#getClass()

The following examples show how to use kodkod.ast.IntExpression#getClass() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: PartialCannonicalizer.java    From quetzal with Eclipse Public License 2.0 6 votes vote down vote up 
public IntExpression visit(IfIntExpression expr) { 
	IntExpression ret = lookup(expr);
	if (ret!=null) return ret;
	
	final Formula cond = expr.condition().accept(this);
	final IntExpression thenExpr = expr.thenExpr().accept(this);
	final IntExpression elseExpr = expr.elseExpr().accept(this);
	
	ret = simplify(cond,thenExpr,elseExpr);
	
	if (ret==null) { 
		final int hash = hash(IfIntExpression.class, cond, thenExpr, elseExpr);
		for(Iterator<PartialCannonicalizer.Holder<IntExpression>> itr = intExprs.get(hash); itr.hasNext(); ) {
			final IntExpression next = itr.next().obj;
			if (next.getClass()==IfIntExpression.class) { 
				final IfIntExpression hit = (IfIntExpression) next;
				if (hit.condition()==cond && hit.thenExpr()==thenExpr && hit.elseExpr()==elseExpr) { 
					return cache(expr, hit);
				}
			}
		}
		ret = cond==expr.condition()&&thenExpr==expr.thenExpr()&&elseExpr==expr.elseExpr() ? expr : cond.thenElse(thenExpr, elseExpr);
		intExprs.add(new PartialCannonicalizer.Holder<IntExpression>(ret, hash));
	}
	return cache(expr,ret);
}
Example 2
Source File: PartialCannonicalizer.java    From quetzal with Eclipse Public License 2.0 6 votes vote down vote up 
public IntExpression visit(UnaryIntExpression expr) { 
	IntExpression ret = lookup(expr);
	if (ret!=null) return ret;
	
	final IntOperator op = expr.op();
	final IntExpression child = expr.intExpr().accept(this);
	
	ret = simplify(op, child);
	if (ret==null) {
		final int hash = hash(op, child);
		for(Iterator<PartialCannonicalizer.Holder<IntExpression>> itr = intExprs.get(hash); itr.hasNext(); ) {
			final IntExpression next = itr.next().obj;
			if (next.getClass()==UnaryIntExpression.class) { 
				if (((UnaryIntExpression)next).intExpr()==child)
					return cache(expr, next);
			}
		}
		ret = child==expr.intExpr() ? expr : child.apply(op);
		intExprs.add(new PartialCannonicalizer.Holder<IntExpression>(ret, hash));
	}
	return cache(expr,ret);
}
Example 3
Source File: PartialCannonicalizer.java    From quetzal with Eclipse Public License 2.0 6 votes vote down vote up 
public IntExpression visit(ExprToIntCast expr) { 
	IntExpression ret = lookup(expr);
	if (ret!=null) return ret;
	
	final ExprCastOperator op = expr.op();
	final Expression child = expr.expression().accept(this);
	
	final int hash = hash(op, child);
	for(Iterator<PartialCannonicalizer.Holder<IntExpression>> itr = intExprs.get(hash); itr.hasNext(); ) {
		final IntExpression next = itr.next().obj;
		if (next.getClass()==ExprToIntCast.class) { 
			if (((ExprToIntCast)next).expression()==child)
				return cache(expr, next);
		}
	}
	ret = child==expr.expression() ? expr : child.apply(op);
	intExprs.add(new PartialCannonicalizer.Holder<IntExpression>(ret, hash));
	return cache(expr,ret);
}