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Parser: recover on unfinished 'as' patterns #16404

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merged 10 commits into from
Dec 12, 2023
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@auduchinok auduchinok commented Dec 7, 2023

Adds recovery for various unfinished as patterns:

match x with
| _ as -> ()
let _ as = ()
let _ as

Also fixes ranges in some previously recovered cases.

@auduchinok auduchinok requested a review from a team as a code owner December 7, 2023 15:00
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This is ready.

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@psfinaki psfinaki left a comment

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Good stuff. Left a few questions because I have a curious mood :D Feel free to answer and resolve.

src/Compiler/pars.fsy Show resolved Hide resolved
@psfinaki psfinaki enabled auto-merge (squash) December 12, 2023 13:40
@psfinaki psfinaki merged commit e795c9b into dotnet:main Dec 12, 2023
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@auduchinok auduchinok deleted the parser-asPat branch December 12, 2023 14:02
OwnageIsMagic added a commit to OwnageIsMagic/fsharp that referenced this pull request Dec 21, 2023
* upstream/main: (166 commits)
  typo in foldBack summary (dotnet#16453)
  Fix for dotnet#83 (improve constraint error message) (dotnet#16304)
  Name resolution: resolve interfaces in expressions (dotnet#15660)
  AddExplicitReturnType refactoring (dotnet#16077)
  Disabling 2 tests: running for too long, causing CI timeouts
  Improve value restriction error message dotnet#1103 (dotnet#15877)
  Parens: Keep parens for non-identical infix operator pairs with same precedence (dotnet#16372)
  More release note entries (dotnet#16438)
  Using Ordinal is both faster and more correct as our intent is to do … (dotnet#16439)
  merge (dotnet#16427)
  Optimize empty string compares (dotnet#16435)
  Checker: recover on unresolved type in 'inherit' member (dotnet#16429)
  Release notes proposal (dotnet#16377)
  [main] Update dependencies from dotnet/source-build-reference-packages (dotnet#16411)
  Allow usage of [<TailCall>] with older FSharp.Core package versions (dotnet#16373)
  Parser: recover on unfinished 'as' patterns (dotnet#16404)
  Parens: Keep parens in method calls in dot-lambdas (dotnet#16395)
  Checker: check unfinished obj expression inside computations (dotnet#16413)
  Added default dotnet-tools + additional tasks to launch them (dotnet#16409)
  make `remarks` and `returns` visible in quick info (dotnet#16417)
  ...
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3 participants