Fantomas is trying to format the input multiple times due to the detection of multiple defines

[manxjason]

Issue created from fantomas-online

Code

fun config ->
#if LOGGING_DEBUG || LOGGING_LOCAL
            let template =
                "[{Timestamp:HH:mm:ss.fff} {Level:u3} {SourceContext:l}] {Message:lj} | {Properties}{NewLine}{Exception}"
#endif

            config
#if LOGGING_DEBUG
                .WriteTo
                .Debug(outputTemplate = template)
#endif
#if LOGGING_LOCAL
                .WriteTo
                .AnsiConsoleLog(
                    outputTemplate = template
                )
#endif
            

Error

System.FormatException: Fantomas is trying to format the input multiple times due to the detection of multiple defines.
There is a problem with merging all the code back together.
[] has 13 fragments
[LOGGING_DEBUG, LOGGING_LOCAL] has 13 fragments
[LOGGING_DEBUG] has 15 fragments
[LOGGING_LOCAL] has 15 fragments
Please raise an issue at https://fsprojects.github.io/fantomas-tools/#/fantomas/preview.
   at Fantomas.Core.MultipleDefineCombinations.mergeMultipleFormatResults(FormatConfig config, FSharpList`1 results) in /_//src/Fantomas.Core/MultipleDefineCombinations.fs:line 211
   at Fantomas.Core.CodeFormatterImpl.formatDocument@95-5.Invoke(FSharpList`1 results) in /_//src/Fantomas.Core/CodeFormatterImpl.fs:line 99
   at Microsoft.FSharp.Control.AsyncPrimitives.CallThenInvokeNoHijackCheck[a,b](AsyncActivation`1 ctxt, b result1, FSharpFunc`2 userCode) in D:\a\_work\1\s\src\FSharp.Core\async.fs:line 525
   at Microsoft.FSharp.Control.Trampoline.Execute(FSharpFunc`2 firstAction) in D:\a\_work\1\s\src\FSharp.Core\async.fs:line 112

Problem description

Please describe here the Fantomas problem you encountered.
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Extra information

• The formatted result breaks my code.
• The formatted result gives compiler warnings.
• I or my company would be willing to help fix this.

Options

Fantomas main branch at 2023-03-31T07:24:53Z - 8e10a1b

Default Fantomas configuration

_{Did you know that you can ignore files when formatting from fantomas-tool or the FAKE targets by using a .fantomasignore file?}

[nojaf]

Thank you, are you interested in submitting a PR for this?

[manxjason]

Not in the short term, but not entirely off the table