Only prefer interpolated string handler conversions in C# 10#55380
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333fred merged 3 commits intodotnet:mainfrom Aug 3, 2021
Merged
Only prefer interpolated string handler conversions in C# 10#55380333fred merged 3 commits intodotnet:mainfrom
333fred merged 3 commits intodotnet:mainfrom
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Closes dotnet#55345. Note that we will still know about the conversion, meaning that if a library introduces an interpolated string handler overload and has another overload with a conversion that is not "better" than any other conversion, such as an overload between `Span<char>` and `CustomHandler`, that code will be considered ambiguous and not compile. I think that is fine though, as 99% of these cases will be overloads between `string` and `CustomHandler`, not `Span<char>` and `CustomHandler`.
jaredpar
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Aug 3, 2021
333fred
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Aug 3, 2021
| IL_002b: ldloc.0 | ||
| IL_002c: call ""void C.M(CustomHandler)"" | ||
| IL_0031: ret | ||
| IL_0000: call ""void CultureInfoNormalizer.Normalize()"" |
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Only change in the IL here is this line. Otherwise, C# 10 remains the same.
cston
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cston
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Closes #55345. Note that we will still know about the conversion, meaning that if a library introduces an interpolated string handler overload and has another overload with a conversion that is not "better" than any other conversion, such as an overload between
Span<char>andCustomHandler, that code will be considered ambiguous and not compile. I think that is fine though, as 99% of these cases will be overloads betweenstringandCustomHandler, notSpan<char>andCustomHandler.Test plan: #51499