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bundleonly option does not check for errors #1000

amieres opened this Issue Aug 3, 2018 · 3 comments


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amieres commented Aug 3, 2018

I have been trying out this feature. There are a couple of issues:

1.- Could we add command line options for jsOutput and minJsOutput so that wsconfig.json is not needed?
2.- when project is of type bundleonly wsfcs.exe ignores all errors and generates partial JavaScript code:

        module Hello
            open WebSharper
            [< assembly: JavaScriptExport >]
            do ()
            let run() = xxprintfn "Hello"

compiles as

 "use strict";
 var Global,Hello;
  throw 1;


When there are more errors it simply compiles as void 0; plus the rest of the supporting code.

When project type is not bundleonly the compiler shows the correct error messages.

3.- Also bundle throws this error:

WebSharper translation: 00:00:00.5186946
WebSharper error FS9001: Global error 'An index satisfying the predicate was not found in the collection.' at    at Microsoft.FSharp.Collections.ListModule.Find[T](FSharpFunc`2 predicate, FSharpList`1 list)
   at WebSharper.Compiler.Bundling.AddExtraBundles(WsConfig config, FSharpList`1 refMetas, Info currentMeta, FSharpList`1 refAssemblies, Compilation comp, FSharpChoice`2 assem)
   at WebSharper.FSharp.Program.Compile$cont@218-3(WsConfig config, Loader loader, FSharpList`1 refs, Task`1 wsRefsMeta, Compilation comp, Info currentMeta, Unit unitVar)

Which goes away when either netstandard.dll or mscorlib.dll is included as a reference. (accompanied with --noframework)
Maybe the message should say so.

@amieres amieres changed the title buildonly option does not check for errors bundleonly option does not check for errors Aug 3, 2018

@Tarmil Tarmil assigned Jand42 and Tarmil and unassigned Jand42 Aug 3, 2018


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Tarmil commented Aug 6, 2018

  1. That would indeed be good, thanks for the suggestion.

  2. Indeed, that is really weird, I'm investigating it.

  3. Interestingly I get a different (but also bad) behavior: the compiler seemingly crashes earlier (after "Waiting on merged metadata: 00:00:00.0039895") without any error message. I'll also investigate this.


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Tarmil commented Aug 6, 2018

I just pushed a fix for 2.; this fix also gives me the following output for 3.:

parse error FS0084: Assembly reference 'mscorlib.dll' was not found or is invalid

so I would consider it fixed too.

I issued 1. separately as #1002, since it is a separate concern.

@Tarmil Tarmil closed this Aug 6, 2018


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amieres commented Aug 6, 2018

Excellent!, thank you very much.

Tarmil added a commit that referenced this issue Aug 7, 2018

@Tarmil Tarmil added the label Aug 10, 2018

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