/// <summary>
/// Convert Late Bound Expression to CLR Expression
/// </summary>
/// <param name="ex">The Expression</param>
/// <param name="provider">The IDSQP provider instance</param>
/// <returns>The converted expression with no latebound methods</returns>
public static Expression ToClrExpression(Expression ex, IDataServiceQueryProvider provider)
{
if (OpenTypeMethodsImplementation == null)
{
OpenTypeMethodsImplementation = new DefaultOpenTypeMethodsImplementation();
}
if (DSPMethodsImplementation == null)
{
DSPMethodsImplementation = new DefaultDSPMethodsImplementation();
}
OpenTypeMethodsImplementation.QueryProvider = provider;
DSPMethodsImplementation.QueryProvider = provider;
LateBoundExpressionVisitor visitor = new LateBoundExpressionVisitor(OpenTypeMethodsImplementation, DSPMethodsImplementation);
return(visitor.Visit(ex));
}
protected internal virtual bool ShouldReplaceMethod(MethodInfo method)
{
return(!DSPMethodsImplementation.MethodHasImplementation(method));
}
/// <summary>
/// Creates a new instance of LateBoundExpressionVisitor
/// </summary>
/// <param name="evaluator">An evaluator class in which expressions will be bound to.</param>
/// <param name="provider">The provider</param>
internal LateBoundExpressionVisitor(OpenTypeMethodsImplementation openTypeImplementation, DSPMethodsImplementation dspImplementation)
{
this.OpenTypeMethodsImplementation = openTypeImplementation;
this.DSPMethodsImplementation = dspImplementation;
}