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CA1862 false-positive on .NET Framework 4.8 #7053

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avivanoff opened this issue Nov 24, 2023 · 0 comments · Fixed by #7083
Closed

CA1862 false-positive on .NET Framework 4.8 #7053

avivanoff opened this issue Nov 24, 2023 · 0 comments · Fixed by #7083

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@avivanoff
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avivanoff commented Nov 24, 2023 •
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Analyzer

Diagnostic ID: CA1862: Use the 'StringComparison' method overloads to perform case-insensitive string comparisons

Analyzer source

SDK: Built-in CA analyzers in .NET 8 SDK or later

Version: SDK 8.0.100

Describe the bug

Steps To Reproduce

  1. Create SDK-style project that targets .NET Framework 4.8 and enable NET Analyzers.
  2. Make sure CA1862 is enabled.
  3. Add code similar to someString.ToUpperInvariant().Contains("ABC").
  4. Build the project.

Expected behavior

CA1862 should not fire.

Actual behavior

CA1862 is triggered.

Additional context

String.Contains overload that takes StringComparison does not exist in .NET Framework 4.8.
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Suppress CA1862 for string.Contains on netfx CollinAlpert/roslyn-analyzers
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@avivanoff