Do not assert IsSupported in DefaultValueAttribute ctor#117042
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stephentoub merged 1 commit intomainfrom Jun 26, 2025
Merged
Do not assert IsSupported in DefaultValueAttribute ctor#117042stephentoub merged 1 commit intomainfrom
stephentoub merged 1 commit intomainfrom
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We have defined behaviors for this. We have tests that test the defined behaviors. I guess I'm the first person to run those tests with a Debug version of CoreLib and hit the assert. (Libraries testing typically uses Release runtime but the only time I build Release runtime is for perf testing.)
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Pull Request Overview
Removes a debug-only assertion in the DefaultValueAttribute constructor so that runtime instantiation behaves as defined by existing tests even in Debug builds.
- Eliminates
Debug.Assert(IsSupported, ...)to avoid test failures in Debug CoreLib builds. - Retains the existing fallback path when
IsSupportedis false.
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This was referenced Jun 26, 2025
stephentoub
approved these changes
Jun 26, 2025
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We have defined behaviors for this. We have tests that test the defined behaviors. I guess I'm the first person to run those tests with a Debug version of CoreLib and hit the assert. (Libraries testing typically uses Release runtime but the only time I build Release runtime is for perf testing.)