private Expression Prepare(Expression cachedExpression, ParameterBag parameters)
{
Expression result;
if (parameters.Any())
{
var visitor = new ConstantExpressionReplacementVisitor(parameters);
result = visitor.Visit(cachedExpression);
}
else
{
result = cachedExpression;
}
// perform null-propagation if this feature is enabled.
if (_configurationProvider.EnableNullPropagationForQueryMapping)
{
var nullVisitor = new NullsafeQueryRewriter();
return(nullVisitor.Visit(result));
}
return(result);
}
