Shawn Vose wrote:
Use System.Reflection to read available methods, attributes and properties for a dll. You can use it to do so at runtime. I know there has been a few questions and answers on Relection in the archives
What I'm trying to accomplish is slightly different, and cannot be done with the current design of attributes.
As an example, I want to be able to place preconditions and postconditions on methods and invariants on classes. These attributes need to follow inheritance rules for Design By Contract as well: postconditions are logically ORed with any inherited postconditions from base classes, while postconditions and invariants are logically ANDed with inherited ones from their base classes. This is not possible with the current implementation of attributes.
Nor is the ability for an attribute to consitently, automatically, and predictable modify the way a method or class works. Attributes cannot access the methods they belong to, nor can they generate code dynamically. There is also no way to have them transparently invoke code upon method execution.
Because of this, something would need to be written to have certain attributes generate code in the methods they modify, or in all the methods of the classes they modify. Also, these attributes would need to be inherited upon their base classes as well, automatically. A script could theoretically do it, but that would require a lot of additional work, reimplementing a C# parser that already exists with Mono.
If you can find a way to do this with System.Reflection, please let me know. It would save me a bundle of time.
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