C#与VB.Net的优雅与严格

Oxite中,有如下代码

Method
        public void AddMethod<T>(Expression<Func<T, object>> method)
        {
            MethodCallExpression methodCall = method.Body as MethodCallExpression;

            if (methodCall == null)
                throw new InvalidOperationException();

            methods.Add(new ReflectedActionDescriptor(methodCall.Method, methodCall.Method.Name, new ReflectedControllerDescriptor(methodCall.Object.Type)));
        }

 

在VB.Net下,

Expression.Lamba.Body是不能直接转换为MethodCallExpression的

这里的method.Body是一个UnaryExpression.

在VB.Net中可以这样

         Public   Sub  AddMethod( Of  T)( ByVal  pMethod  As  Expression( Of  Func( Of  T,  Object )))
             Dim  tUnary  As  UnaryExpression  =  TryCast(pMethod.Body, UnaryExpression)
             If  tUnary  Is   Nothing   Then
                 Throw   New  InvalidOperationException
             End   If
             Dim  tMethodCall  As  MethodCallExpression  =  TryCast(tUnary.Operand, MethodCallExpression)
             If  tMethodCall  Is   Nothing   Then
                 Throw   New  InvalidOperationException
             End   If
             Me .Methods.Add( New  ReflectedActionDescriptor(tMethodCall.Method, tMethodCall.Method.Name,  New  ReflectedControllerDescriptor(tMethodCall.Object.Type)))
         End Sub

 

不清楚C#默认的转换是怎么转换的,有点反感某些缺省配置了.