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Multiple modules in a single FS file.
f#

Hi,

The following F# code snippet compiles successfully in a .fs file in a F# library project in VS2008 (w/ F# Sep CTP).

#light "off"

namespace a

module b = begin

type c = string

module d = begin

type e = c * int

end

end

module f = begin

type g = string

end

However, the same snippet with some minor modification (as shown below)

#light

namespace a

module b //= begin

type c = string

module d //= begin

type e = c * int

//end

//end

module f //= begin

type g = string

//end

fails to compile with the error

File1.fs(7,13): error FS0010: Unexpected keyword 'type' in definition. Expected '=' or other token.

File1.fs(11,9): error FS0010: Unexpected keyword 'type' in definition. Expected '=' or other token

Am I doing something wrong or is this is a bug in F# Sep08-CTP release?

Also, are the light and non-light F# language grammars available for download or browsing? I'm looking for documentation on basic language syntax.

Thank you,

.

[link:research.microsoft.com]

contains information regarding grammar.

By on 2/23/2009 7:20 AM ()

Nested modules seem to require the equals sign even in light mode, the following seems to compile okay for me:

#light

namespace a

module b = //begin

type c = string

module d = //begin

type e = c * int

//end

//end

module f = //begin

type g = string

//end

Concerning the grammar the best place to look is the spec:

[link:research.microsoft.com]

Sections 3 & 15 cover lexical stuff. If you want you can look at the lexer/parser

in "FSharp-1.9.6.2\source\fsharp\lex.mll" & "FSharp-1.9.6.2\source\fsharp\pars.mly"

Cheers,

Rob

By on 12/26/2008 12:52 AM ()

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