Way to automatically see which functions can potentially return exception in c#

Question

nothing more frustrating than to see your code crash in the debugger on a method which exceptionned and you didn't try/catch it.

Is there an easy way to scan through your sources and tag all functions which can potentially throw exceptions?

Does the build in visual assist have some hidden option to colour these functions in a specific color?

thanks

R

Answer 1

All code but the most trivial could throw exceptions (out of memory, at the very least). You're probably better off writing your code defensively, with at least a global try/catch rather than trying to micromanage which sections of code will or won't throw exceptions.

Answer 2

No, there is no way to automatically do this nor is there a good way to get a list of all possible exceptions thrown by a method. Here are a few reasons why

1. Consider implicitly thrown exceptions such as StackOverflowException can be thrown at any time from any method. You must assume that any method in the CLR can throw these types of exceptions
2. Reflection and / or delegates can hide the actual code being called in a particular method so you cannot inspect all possible code paths of a method.
3. This would require inspecting IL vs. metadata.
4. In .Net there is no requirement to document exceptions that are explicitly thrown by an API