Remove scope variance exceptions #76296
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jjonescz
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Dec 9, 2024
| @@ -118,3 +118,22 @@ class C | |||
| } | |||
| ``` | |||
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| ## Variance of `scoped` and `[UnscopedRef]` is more strict | |||
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Note: I found these breaks when building the BCL with this change: dotnet/runtime@fae33d2e25a
jaredpar
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Dec 9, 2024
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jaredpar
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Dec 10, 2024
333fred
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Dec 10, 2024
jjonescz
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Dec 12, 2024
| // We have removed exceptions to the scoped mismatch error reporting, but to avoid breaks | ||
| // we report the new scenarios (previously exempted) as warnings in C# 12 and earlier. | ||
| // https://github.com/dotnet/roslyn/issues/76100 | ||
| (overrideMethod.DeclaringCompilation.LanguageVersion > LanguageVersion.CSharp12 || usedToBeReported(baseMethod)); |
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Downgraded the new errors to warnings in C# 12 and lower to lessen the break per offline discussion with Jared. (We think breaking in C# 13 is fine since it's new.)
jaredpar
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Dec 12, 2024
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@cston @dotnet/roslyn-compiler for a second review, thanks |
333fred
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Dec 19, 2024
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Fixes #76100.
Alternative to #76261.
Speclet update: dotnet/csharplang#8777