static Expression <Filter <RoutingContext <T> > > GetRoutingContextFilter(Expression <Filter <T> > filterExpression)
{
ParameterExpression context = Expression.Parameter(typeof(RoutingContext <T>), "value");
PropertyInfo bodyProperty =
ExtensionsToExpression.GetMemberPropertyInfo <RoutingContext <T>, T>(x => x.Body);
MethodCallExpression body = Expression.Call(context, bodyProperty.GetGetMethod(true));
InvocationExpression invokeFilter = Expression.Invoke(filterExpression, body);
return(Expression.Lambda <Filter <RoutingContext <T> > >(invokeFilter, context));
}
static Func <object, T> GenerateConvertMethod()
{
ParameterExpression value = Expression.Parameter(typeof(object), "value");
UnaryExpression castValue = Expression.TypeAs(value, typeof(Message <T>));
PropertyInfo propertyInfo = ExtensionsToExpression.GetMemberPropertyInfo <Message <T>, T>(x => x.Body);
MethodCallExpression getProperty = Expression.Call(castValue, propertyInfo.GetGetMethod(true));
Expression <Func <object, T> > expression = Expression.Lambda <Func <object, T> >(getProperty, value);
return(expression.Compile());
}
public ReflectionGetPropertyRunner()
{
_valueProperty = ExtensionsToExpression.GetMemberPropertyInfo <MyClass, int>(x => x.Value);
_textProperty = ExtensionsToExpression.GetMemberPropertyInfo <MyClass, string>(x => x.Text);
}
