public boolean isConstantVar(XVariable var) {
if (!var.hasEquation()) return true;
Node eqn = var.getEquation();
if (eqn instanceof ASTConstant) return true;
/* So why would we want a=x to be treated as a constant? */
// if(eqn instanceof ASTVarNode) {
// return isConstantVar((XVariable)((ASTVarNode) eqn).getVar());
// }
return false;
}
