Bug report from fantomas-ui (using System.Linq's OfType<T>)

[penelope99]

Issue created from fantomas-ui

Code

namespace Foo

open System.Linq

module Bar =
    let Baz () =
        for foo in bar().OfType<SomeType>() do
            printf "baz"

Error

Exception: cannot determine if synExpr DotGet
  (App
     (Atomic,false,Ident bar,Const (Unit,tmp.fsx (7,22--7,24) IsSynthetic=false),
      tmp.fsx (7,19--7,24) IsSynthetic=false),
   tmp.fsx (7,24--7,25) IsSynthetic=false,LongIdentWithDots ([OfType],[]),
   tmp.fsx (7,19--7,31) IsSynthetic=false) is uppercase or lowercase Stack Trace:    at Microsoft.FSharp.Core.PrintfModule.PrintFormatToStringThenFail@1637.Invoke(String message) in E:\A\_work\130\s\src\fsharp\FSharp.Core\printf.fs:line 1637
   at Fantomas.CodePrinter.addSpaceBeforeParensInFunCall(SynExpr functionOrMethod, SynExpr arg, Context ctx) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 52
   at Fantomas.CodePrinter.genExpr@1084-231.Invoke(Context ctx) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 1086
   at Fantomas.CodePrinter.genTrivia@2481-1.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 2481
   at Fantomas.CodePrinter.genExpr@913-111.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 913
   at Fantomas.Context.atIndentLevel@192-6.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/Context.fs:line 192
   at Fantomas.Context.atIndentLevel(Boolean alsoSetIndent, Int32 level, FSharpFunc`2 f, Context ctx) in /build/.deps/fantomas/src/Fantomas/Context.fs:line 193
   at Fantomas.CodePrinter.genTrivia@2481-1.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 2481
   at Fantomas.Context.futureNlnCheckMem(FSharpFunc`2 f, Context ctx) in /build/.deps/fantomas/src/Fantomas/Context.fs:line 429
   at Fantomas.Context.futureNlnCheck(FSharpFunc`2 f, Context ctx) in /build/.deps/fantomas/src/Fantomas/Context.fs:line 433
   at Fantomas.CodePrinter.genExprSepEqPrependType(FSharpFunc`2 genPat, ASTContext astContext, FSharpFunc`2 prefix, SynPat pat, SynExpr e, Context ctx) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 469
   at Fantomas.CodePrinter.genTrivia@2481-1.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 2481
   at Fantomas.CodePrinter.genTrivia@2481-1.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 2481
   at Fantomas.CodePrinter.genModuleDecl@344-46.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 344
   at Fantomas.CodePrinter.genTrivia@2481-1.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 2481
   at Fantomas.CodePrinter.genTrivia@2481-1.Invoke(Context x) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 2481
   at Fantomas.Context.col[T](FSharpFunc`2 f', IEnumerable`1 c, FSharpFunc`2 f, Context ctx) in /build/.deps/fantomas/src/Fantomas/Context.fs:line 289
   at Fantomas.CodePrinter.genImpFile@90-6.Invoke(Context ctx) in /build/.deps/fantomas/src/Fantomas/CodePrinter.fs:line 90
   at Fantomas.CodeFormatterImpl.formatWith(ParsedInput ast, FSharpList`1 defines, FormatContext formatContext, FormatConfig config) in /build/.deps/fantomas/src/Fantomas/CodeFormatterImpl.fs:line 392
   at Fantomas.CodeFormatterImpl.format@408-1.Invoke(Tuple`2[] _arg1) in /build/.deps/fantomas/src/Fantomas/CodeFormatterImpl.fs:line 410
   at Microsoft.FSharp.Control.AsyncPrimitives.CallThenInvokeNoHijackCheck[a,b](AsyncActivation`1 ctxt, FSharpFunc`2 userCode, b result1) in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:line 416
   at Microsoft.FSharp.Control.Trampoline.Execute(FSharpFunc`2 firstAction) in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:line 109
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.FSharp.Control.AsyncResult`1.Commit() in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:line 349
   at Microsoft.FSharp.Control.AsyncPrimitives.RunSynchronouslyInCurrentThread[a](CancellationToken cancellationToken, FSharpAsync`1 computation) in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:line 870
   at Microsoft.FSharp.Control.AsyncPrimitives.RunSynchronously[T](CancellationToken cancellationToken, FSharpAsync`1 computation, FSharpOption`1 timeout) in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:line 890
   at Microsoft.FSharp.Control.FSharpAsync.RunSynchronously[T](FSharpAsync`1 computation, FSharpOption`1 timeout, FSharpOption`1 cancellationToken) in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:line 1153
   at Server.Result.attempt[a](FSharpFunc`2 f) in /build/src/Server/Server.fs:line 24

Options

Fantomas Next - 3.3.0-3/18/2020

Name	Value
IndentOnTryWith	false
IndentSpaceNum	4
KeepNewlineAfter	false
MaxIfThenElseShortWidth	40
PageWidth	120
ReorderOpenDeclaration	false
SemicolonAtEndOfLine	false
SpaceAfterComma	true
SpaceAfterSemicolon	true
SpaceAroundDelimiter	true
SpaceBeforeClassConstructor	false
SpaceBeforeColon	false
SpaceBeforeLowercaseInvocation	true
SpaceBeforeMember	false
SpaceBeforeParameter	true
SpaceBeforeSemicolon	false
SpaceBeforeUppercaseInvocation	false
StrictMode	false