ROSLYN.PERFORMANCE.CA1813 : Avoid unsealed attributes (C#)

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ROSLYN.PERFORMANCE.CA1813 : Avoid unsealed attributes (C#)

Summary

The .NET Framework class library provides methods for retrieving custom attributes. By default, these methods search the attribute inheritance hierarchy. Sealing the attribute eliminates the search through the inheritance hierarchy and can improve performance.

This check corresponds to Roslyn rule CA1813. For full rule details, see the Microsoft website: CA1813.

Properties

Class Name	Avoid unsealed attributes (C#)
Significance	reliability
Mnemonic	ROSLYN.PERFORMANCE.CA1813
Categories	None
Availability	Available for C# only.
Enabling	Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file. WARNING_FILTER += allow class="Avoid unsealed attributes (C#)"

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.