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Ban ISourceGenerator implementations #6478

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merged 2 commits into from
Feb 9, 2023

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jjonescz
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@jjonescz jjonescz commented Feb 8, 2023

Resolves dotnet/roslyn#65106. Not banning ISourceGenerator directly as that seems unsupported by the banned API analyzer.

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codecov bot commented Feb 8, 2023

Codecov Report

Merging #6478 (d7ebcae) into main (1dc431e) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #6478   +/-   ##
=======================================
  Coverage   96.40%   96.40%           
=======================================
  Files        1371     1371           
  Lines      318939   318980   +41     
  Branches    10265    10265           
=======================================
+ Hits       307469   307520   +51     
+ Misses       9010     9001    -9     
+ Partials     2460     2459    -1     

@jjonescz jjonescz marked this pull request as ready for review February 8, 2023 12:49
@jjonescz jjonescz requested a review from a team as a code owner February 8, 2023 12:49
Comment on lines 307 to 309
VerifyCS.Diagnostic("RS1035").WithSpan(8, 9, 10, 26).WithArguments("GeneratorInitializationContext", ": Non-incremental source generators should not be used, implement IIncrementalGenerator instead"),
// /0/Test0.cs(14,9): error RS1035: The symbol 'GeneratorExecutionContext' is banned for use by analyzers: Non-incremental source generators should not be used, implement IIncrementalGenerator instead
VerifyCS.Diagnostic("RS1035").WithSpan(14, 9, 17, 40).WithArguments("GeneratorExecutionContext", ": Non-incremental source generators should not be used, implement IIncrementalGenerator instead"),
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💡 The WithLocation API makes it easier to see where the diagnostic is appearing relative to source code.

Suggested change
VerifyCS.Diagnostic("RS1035").WithSpan(8, 9, 10, 26).WithArguments("GeneratorInitializationContext", ": Non-incremental source generators should not be used, implement IIncrementalGenerator instead"),
// /0/Test0.cs(14,9): error RS1035: The symbol 'GeneratorExecutionContext' is banned for use by analyzers: Non-incremental source generators should not be used, implement IIncrementalGenerator instead
VerifyCS.Diagnostic("RS1035").WithSpan(14, 9, 17, 40).WithArguments("GeneratorExecutionContext", ": Non-incremental source generators should not be used, implement IIncrementalGenerator instead"),
VerifyCS.Diagnostic("RS1035").WithLocation(0).WithArguments("GeneratorInitializationContext", ": Non-incremental source generators should not be used, implement IIncrementalGenerator instead"),
// /0/Test0.cs(14,9): error RS1035: The symbol 'GeneratorExecutionContext' is banned for use by analyzers: Non-incremental source generators should not be used, implement IIncrementalGenerator instead
VerifyCS.Diagnostic("RS1035").WithLocation(1).WithArguments("GeneratorExecutionContext", ": Non-incremental source generators should not be used, implement IIncrementalGenerator instead"),

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Proposal: obsolete ISourceGenerator, SyntaxReceiver and all non-incremental APIs
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