Defining my own preprocessor directives in F#

Question

I have an F# script that I intend to use both at home and at work. The script shall work similarly in both places, yet, I have a set of issues to deal with at work (mostly regarding firewalls and http proxies) so I'd like to run my script in a slightly different way in one case and in the other.

I imagine that ideally I'd set a special flag (directive) at the FSI level, so I could have #if AT_WORK to deal with some sharp corner cases.

How to accomplish this?

Gus · Accepted Answer · 2014-03-15T20:26:14.960

8

Yes, you can define your own symbols to use with conditional compilation, when you call FSI do it like this:

Fsi.exe --define:AT_WORK yourScript.fsx

See http://msdn.microsoft.com/en-us/library/dd233172.aspx

edited Mar 15 '14 at 20:26

answered Feb 05 '14 at 12:46

Gus

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Also, is there a way to do that by code? Something like #define AT_WORK. – devoured elysium Feb 05 '14 at 12:52
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You could have a wrapper fsx script that does whatever is needed to figure out if your at work or not and then that script launches Fsi.exe with AT_WORK or AT_HOME using Process.Start :-) – Simon Stender Boisen Feb 05 '14 at 12:59

Defining my own preprocessor directives in F#

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