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Infer delegate types with -langversion:preview only #53241

Merged
merged 3 commits into from
May 12, 2021
Merged

Infer delegate types with -langversion:preview only #53241

merged 3 commits into from
May 12, 2021

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cston
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@cston cston commented May 6, 2021 •
edited by jcouv
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See #52448.
Test plan: #52192

@cston cston requested a review from a team as a code owner May 6, 2021 22:47
@jcouv jcouv added this to the C# 10 milestone May 6, 2021
@jcouv jcouv mentioned this pull request May 7, 2021
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jcouv commented May 7, 2021 •
edited by cston
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        if (delegateOrFuncPtrType.SpecialType != SpecialType.System_Delegate)

Do we need to adjust this one too?

In reply to: 834049365

Refers to: src/Compilers/CSharp/Portable/Binder/Binder_Conversions.cs:1189 in 366686a. [](commit_id = 366686a, deletion_comment = False)

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LGTM Thanks (iteration 3) with one question

@jcouv jcouv self-assigned this May 7, 2021
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cston commented May 7, 2021 •
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        if (delegateOrFuncPtrType.SpecialType != SpecialType.System_Delegate)

Do we need to adjust this one too?

I don't believe so, since this method should only be called in cases where Conversions.GetMethodGroupDelegateConversion() classified the conversion as a method group conversion, and GetMethodGroupDelegateConversion() checks that the feature is enabled.

In reply to: 834049365

Refers to: src/Compilers/CSharp/Portable/Binder/Binder_Conversions.cs:1189 in 366686a. [](commit_id = 366686a, deletion_comment = False)

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Infer delegate types with -langversion:preview only

Is this a permanent or a temporary change? It feels like it violates the general principle that language version doesn't affect result of semantic analysis, apart from diagnostics.

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cston commented May 7, 2021 •
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Is this a permanent or a temporary change? It feels like it violates the general principle that language version doesn't affect result of semantic analysis, apart from diagnostics.

This change is temporary and intended for early previews only.

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jcouv commented May 7, 2021

This change is temporary and intended for early previews only.

Btw, I added a note to test plan as a reminder to revert this change (assuming it gets merged).

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cston commented May 11, 2021

@dotnet/roslyn-compiler for a second review of a temporary change for early previews only.

@cston cston requested a review from a team May 12, 2021 16:20
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LGTM (commit 3)

@cston cston merged commit 82ce937 into dotnet:features/compiler May 12, 2021
@jcouv jcouv mentioned this pull request May 12, 2021
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cston added a commit to cston/roslyn that referenced this pull request May 17, 2021
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Revert "Infer delegate types with -langversion:preview only (dotnet#5…
8b4f4b5 
…3241)"

This reverts commit 82ce937.
@cston cston mentioned this pull request May 17, 2021
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@cston cston modified the milestones: C# 10, 16.11 May 17, 2021
cston added a commit that referenced this pull request May 18, 2021
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Revert "Infer delegate types with -langversion:preview only (#53241)" (…
7d461ed 
…#53466)

This reverts commit 82ce937.
333fred added a commit to 333fred/roslyn that referenced this pull request May 20, 2021
@333fred
Merge remote-tracking branch 'upstream/main' into editorformattingser…
e1f3b59 
…vice-featureslayer

* upstream/main: (857 commits)
  Update contrib documentation (dotnet#53504)
  SImplify
  Fix out of bound crash in lsp navto.
  Revert changes to TypeScriptWaitContext wrappers
  Switch to ROSLYN_TEST_CI for CI detection
  SImplify
  Simplify LoggerTestChannel using BlockingCollection
  Only require telemetry validation in CI
  Fix out of bound crash in lsp navto.
  Fix locked comment
  Update Compiler Test Plan.md (dotnet#53420)
  Adjust doc comment for NullableWalker.VisitConversion (dotnet#53429)
  Revert "Infer delegate types with -langversion:preview only (dotnet#53241)" (dotnet#53466)
  Fix syntax normalizer to add space around before colon in constructor initializer (dotnet#53326)
  Remove unnecessary property (dotnet#53406)
  EnC - Tell the debugger about updated type def tokens (dotnet#53217)
  Revert an error
  Update PublishData.json
  Keep trailing trivia so single line if statements don't get badly formatted (dotnet#53414)
  Fix dead test code (dotnet#53416)
  ...
cston added a commit to cston/roslyn that referenced this pull request Jul 29, 2021
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Revert "Revert "Infer delegate types with -langversion:preview only (d…
9894189 
…otnet#53241)" (dotnet#53466)"

This reverts commit 7d461ed.
@cston cston mentioned this pull request Jul 29, 2021
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cston added a commit that referenced this pull request Jul 29, 2021
@cston
Infer delegate types with -langversion:10 (and above) only (#55232)
a429a88 
Revert "Revert "Infer delegate types with -langversion:preview only (#53241)" (#53466)"

This reverts commit 7d461ed.
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