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Issues list

Keep original line information in AST ranges, add separate mechanism for #line directives Area-Compiler-Syntax lexfilter, indentation and parsing Contributor Pain help wanted
#18553 opened May 15, 2025 by Martin521 Backlog
1
assert keyword: have compiler emit call to Debug.Assert overload with CallerArgumentExpression where possible Area-Compiler-Checking Type checking, attributes and all aspects of logic checking Feature Request good first issue help wanted
#18489 opened Apr 21, 2025 by brianrourkeboll Backlog
6
CI should check the dev container setup Area-Tooling Generic tooling bugs and suggestions, which do not fall into any existing category. Continuous Improvement help wanted
#18321 opened Feb 17, 2025 by Martin521 Backlog
4
Resumable Code RFC sample code is missing Area-Documentation good first issue help wanted
#18265 opened Jan 23, 2025 by majocha Backlog
2
Optimizing non-tail recursions for sequences Area-Compiler-Optimization The F# optimizer, release code gen etc. Area-Compiler-StateMachines Sequence, list, task and other state machine compilation Feature Request help wanted
#18213 opened Jan 8, 2025 by AlexRadch Backlog
2
byref parameters starting with some non-ASCII identifiers cannot be set. Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#18164 opened Dec 19, 2024 by ijklam Backlog
8
Wrong StructLayoutAttribute.Size for struct unions with no data fields Area-Compiler-CodeGen IlxGen, ilwrite and things at the backend Bug good first issue help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#18125 opened Dec 9, 2024 by ghost Backlog
3
ILVerify check improvements Contributor Pain help wanted
#18090 opened Nov 29, 2024 by Martin521 Backlog
2
Nuget warnings in fsi are emitted to stdout and cannot be suppressed with --quiet Area-FSI Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#18086 opened Nov 29, 2024 by legezam Backlog
4
VS2022 F# Interactive output pane interspersing empty lines at random on large text output Area-VS-FSI VS window and commands for F# Interactive Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#18064 opened Nov 26, 2024 by smoothdeveloper Backlog
1
Compiler codebase chore :: Hash directives around nullness syntax are not needed anymore Contributor Pain Feature Request good first issue help wanted
#18061 opened Nov 26, 2024 by T-Gro Backlog
6
[<System.ParamArray>] parameter in member function causes type check error. Feature Improvement help wanted Triage-Investigate
#17957 opened Nov 5, 2024 by muqiuhan Backlog
3
Show XML doc for enum fields in external metadata Area-LangService-Navigation go to definition, F1 help + the FCS APIs related to it Area-XmlDocs xmldoc generation, xmldoc content Feature Request good first issue help wanted
#17939 opened Oct 29, 2024 by kerams Backlog
1
Mixing named arguments + callback style and getter should not compile Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#17935 opened Oct 29, 2024 by MangelMaxime Backlog
1
2
F# compiler doesn't respect different attribute targets when checking for Multiple appliance Area-Compiler-Checking Type checking, attributes and all aspects of logic checking Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#17904 opened Oct 21, 2024 by En3Tho Backlog
Seq.empty renders as "EmptyEnumerable" Feature Improvement good first issue help wanted
#17864 opened Oct 10, 2024 by bartelink Backlog
40
Nullness issue - Option.toObj infers input to be an option of a nullable type Area-Nullness Issues related to handling of Nullable Reference Types Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#17727 opened Sep 14, 2024 by kerams
1 of 7 tasks
Backlog
3
open type does not bring enum cases into scope in patterns Area-Compiler-Checking Type checking, attributes and all aspects of logic checking Breaking-change Describes a bug which is also a breaking change. Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#17630 opened Aug 28, 2024 by brianrourkeboll Backlog
9
Nullness issue - ToString on an integer with UoM takes nullness information from ValueType Area-Nullness Issues related to handling of Nullable Reference Types Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#17539 opened Aug 15, 2024 by kerams
1 of 7 tasks
Backlog
Nullness - Consider supporting Nullable shorthand for TreatWarningsAsErrors Feature Request good first issue help wanted Needs-Triage
#17524 opened Aug 12, 2024 by BoundedChenn31 Backlog
6
Compiler allows non-functions to be bound to active pattern names Area-Compiler-Checking Type checking, attributes and all aspects of logic checking Bug help wanted Impact-Low (Internal MS Team use only) Describes an issue with limited impact on existing code.
#17190 opened May 20, 2024 by brianrourkeboll Backlog
@edgarfgp
8
Using delegate keyword breaks semantic highlighting Area-VS-Editor VS editor support for F# code, not covered elsewhere Bug help wanted Impact-Medium (Internal MS Team use only) Describes an issue with moderate impact on existing code.
#16982 opened Apr 3, 2024 by T-Gro Backlog
1
tooltip for enums show [<Struct>] type instead of enum Area-LangService-ToolTips tooltips/hover/quickinfo Feature Improvement help wanted
#16923 opened Mar 21, 2024 by smoothdeveloper Backlog
1
Support F# Kernel (dotnet-interactive) on Wasm Area-FSI Feature Request help wanted
#16881 opened Mar 15, 2024 by pawel-stadnicki-gertrud Backlog
20
Find all references of a DU case should include case testers Area-LangService-FindAllReferences Find all references across projects and solutions Feature Request help wanted
#16621 opened Jan 31, 2024 by kerams Backlog
ProTip! Adding no:label will show everything without a label.