CODEWITHSUNDEEP
f#constantsc#-to-f#
mfeingold
mfeingold

Reputation: 7134

Global constants in F# - how to

I need to set a version number to be used in the AssemblyVersion attribute by several related projects.

In C# I use the following 

public class Constants {
    public const string Version = "1.2.3.4";
}

then it can be used as follows:

[assembly:AssemblyVersion(Constants.Version)]

What would be the equivalent construct in F#. All my attempts to come up with a binding which can be accepted as an attribute argument did not work.

Upvotes: 29

Views: 8721

Answers (2)

DblQt
DblQt

Reputation: 131

Since I stepped into this trap myself I thought I'd share for anyone following. A 'Literal' requires that the letter starts with a capital letter. This will hit you when you try to use the literal in a pattern matching construct.

Reference: Literal attribute not working

Upvotes: 9

Johan Kullbom
Johan Kullbom

Reputation: 4243

Use the attribute Literal:

[<Literal>] 
let version = "1.2.3.4"

[<assembly:AssemblyVersion(version)>]

Upvotes: 47

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