Question

Will the Visual Studio debugger display the F# source or the source being referenced by the #line directive or the F# source? Any drawbacks? (for instance, I assume that neat tricks like mousing over a declaration will stop working as the original source will not be parsed?)

EDIT:

It was suggested to me that I’m just being lazy. This is of course very true. I tested it and answered my own question.

Answer 1

• Stepping works as expected
• Break points works as expected
• VS does some probabilistic assumptions. For instance, you can right click on an identifier to inspect it (“hey, I have no idea what exotic grammar this guy uses, but I’ll bet you that he uses whitespace, operators and identifiers in a common enough way, let’s help out”).
• However, VS is not bold enough to make the same probabilistic assumption on mouse over (it does not inspect).

Drawbacks:
– VS seems to do some highlighting of statements that does not work well if the original code is very different from the generated F# code. Strange behavior I would think?