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8.0.300.md

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Fixed

  • Fix wrong range start of INTERP_STRING_END. (PR #16774, PR #16785)
  • Fix missing warning for recursive calls in list comprehensions. (PR #16652)
  • Code generated files with > 64K methods and generated symbols crash when loaded. Use infered sequence points for debugging. (Issue #16399, #PR 16514)
  • nameof Module expressions and patterns are processed to link files in --test:GraphBasedChecking. (PR #16550, PR #16743)
  • Graph Based Checking doesn't throw on invalid parsed input so it can be used for IDE scenarios (PR #16575, PR #16588, PR #16643)
  • Various parenthesization API fixes. (PR #16578, PR #16666)
  • Keep parens for problematic exprs (if, match, etc.) in $"{(…):N0}", $"{(…),-3}", etc. (PR #16578)
  • Fix crash in DOTNET_SYSTEM_GLOBALIZATION_INVARIANT mode #PR 16471)
  • Fix16572 - Fixed the preview feature enabling Is properties for union case did not work correctly with let .rec and .fsi files (PR #16657)
  • [<CliEvent>] member should not produce property symbol. (Issue #16640, PR #16658)
  • Fix discriminated union initialization. (#PR 16661)
  • Allow calling method with both Optional and ParamArray. (#PR 16688, suggestions #1120)
  • Fix release inline optimization, which leads to MethodAccessException if used with `assembly:InternalsVisibleTo`` attribute. (Issue #16105, (PR #16737)
  • Enforce AttributeTargets on let values and functions. (PR #16692)
  • Enforce AttributeTargets on union case declarations. (PR #16764)
  • Disallow using base to invoke an abstract base method. (Issue #13926, PR #16773)

Added

  • The stackguard depth for ILPdbWriter.unshadowScopes can be modified via the environment variable FSHARP_ILPdb_UnshadowScopes_StackGuardDepth(PR #16583)
  • Parser recovers on complex primary constructor patterns, better tree representation for primary constructor patterns. (PR #16425)
  • Name resolution: keep type vars in subsequent checks (PR #16456)
  • Higher-order-function-based API for working with the untyped abstract syntax tree. (PR #16462)
  • Add switch to generate types and members with IL visibility that accurately represents their F# visibility. (PR #15484
  • Allow returning bool instead of unit option for partial active patterns. (Language suggestion #1041, PR #16473)
  • Symbols: Add GenericArguments to FSharpEntity (PR #16470)

Changed

  • Autogenerated .Is* members for unions skipped for single-case unions. (PR 16571)
  • implicitCtorSynPats in SynTypeDefnSimpleRepr.General is now SynPat option instead of SynSimplePats option. (PR #16425)
  • SyntaxVisitorBase<'T>.VisitSimplePats now takes SynPat instead of SynSimplePat list. (PR #16425)
  • Reduce allocations in compiler checking via ValueOption usage (PR #16323, PR #16567, PR #16822)
  • Reverted #16348 ThreadStatic CancellationToken changes to improve test stability and prevent potential unwanted cancellations. (PR #16536)
  • Refactored parenthesization API. ([PR #16461])(#16461))
  • Optimize some interpolated strings by lowering to string concatenation. (PR #16556)
  • Integral range optimizations. (PR #16650)