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help with first build
f#compilerocaml

Would someone be kind enough to show me how to compile an F# program with two modules using fsc on Windows? I'm having trouble making the switch from ocaml and can't figure out what compiler switched are needed. I can't make any sense of Microsoft's online documentation and don't have visual studio 2008 or 2010 available yet.

Suppose my source files are as follows:

-- bar.fs --

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   namespace foo
   module bar =
      let hello = "Hello!"

-- main.fs

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   namespace foo
   module main =
       let _ = Printf.printf "%s\n" bar.hello

I can compile mod.fs with

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  % fsc --target:modue mod.fs

and it produces bar.netmodule, but I don't know if that output is what I need or how to pass it fsc to
compile main.fs.

Don't worry if there are errors in my use of modules. I'm a long-time ML programmer, but wrote my first F# program yesterday.

Thanks. Any help is much appreciated.

Ken

.

Use --target:library to compile to a library (e.g. to create bar.dll).

Then use --target:exe and -r:bar.dll to make an executable that references the library you just build.

(Alternatively, just compile it all together into a single assembly; e.g. "fsc bar.fs main.fs".)

Don't use --target:module, netmodules are a CLR thing that no one uses or understands. :)

By on 11/12/2010 2:31 PM ()

Thanks - that did the trick! I now have an executable program.

But there's a problem. The program uses third party dotnet assemblies (DLLs) and throws the following exception on startup:

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Unhandled exception:System.IO.FileNotFoundException:  Could not load file or assembly 'ESRI.ArcGIS.DataSourcesGDB, ...' or one of its dependencies.  The system cannot find the file specified.
   at <StartupCode$Resolver>.$Resolver$Main.main@()

I tried to include the assembly in a static manner using fsc --standalone, but omitting that switch does not change the exception.

How can I get my program to load these assemblies? I checked DataSourcesGDB's manifest using ILDASM.exe and have referenced all of its dependencies (with fsc -r filename.dll). Is this what the --staticlink:file option is for? FYI, the F# interpreter is able to load these properly using #I and #r directives.

Thanks again.

Ken

By on 11/12/2010 11:18 PM ()

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