Back to Questions
1.0k
views3
comments
error...This expression is a function value, i.e. missing an argument
f#

I'm getting blue squiggly lines below totalGlassesFetched <- getAllGlasses() right under while loop. And the floating error is saying 'this expression is a function value, i.e. missing an argument'. The function getAllGlasses doesn't take any argument and I don't understand why it's spitting out that error message.

I also get blue squiggly lines under glasses.AddGlasses(totalGlassesFetched),cups.AddCups(totalCupFetched) which might be caused by the first error.

Thank you in advance for any help.

Following is my code:

member t.Start(tables:Tables, glasses:Glasses.Glasses, cups:Cups.Cups) =

let mutable totalGlassesFetched = 0

let mutable totalCupFetched = 0

let maxNumTables = tables.Length

let getAllGlasses() =

....

let getAllCups() =

....

while true do

totalGlassesFetched <- getAllGlasses()

totalCupFetched <- getAllCups()

t.CleanGlasses(totalGlassesFetched)

t.CleanCups(totalCupFetched)

glasses.AddGlasses(totalGlassesFetched)

cups.AddCups(totalCupFetched)

t.TakeBreak

.

I can't diagnose the problem from this snippet. Can you share the definition of getAllGlasses()? What are the other two squiggle messages?

This also sounds possibly like VS is in a bad state; perchance does this go away if you close Visual Studio and re-open it?

By on 12/2/2008 1:59 PM ()

Thanks Brianmcn.

Following is the definition for getAllGlasses & getAllCups:

let getAllGlasses() =

let mutable numGlassesFetched = 0

for i = 0 to maxNumTables - 1 do

numGlassesFetched <- numGlassesFetched + tables.[i].FetchAllGlassesFromTable()

printfn "Assistant: Collected %d Glasses From Table %d" numGlassesFetched i

numGlassesFetched

let getAllCups() =

let mutable numCupsFetched = 0

for i = 0 to maxNumTables - 1 do

numCupsFetched <- numCupsFetched + tables.[i].FetchAllCupsFromTable()

printfn "Assistant: Collected %d Cups From Table %d" numCupsFetched i

numCupsFetched

The other two squiggle message is the same message 'This expression is a function....'. Thank you for your time and effort.

By on 12/2/2008 2:06 PM ()

Hm, this makes no sense. :)

Did you try restarting VS?

Since they're just warnings (blu squiggles) and not errors (red squiggles), does it 'work' as expected if you compile and run?

By on 12/2/2008 2:16 PM ()

    Topic tags

    IntelliFactory Offices Copyright (c) 2011-2012 IntelliFactory. All rights reserved.
    Home | Products | Consulting | Trainings | Blogs | Jobs | Contact Us | Terms of Use | Privacy Policy | Cookie Policy     		Built with WebSharper