Add polyfills for .NET 9 attributes. #108
Merged
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API breakdown (for new features)
Polyfills for the following attributes were added:
[OverloadResolutionPriority]
[ParamsCollection]
Polyfills for the following runtime-supported attributes were added:
[DisableUserUnhandledExceptions]
[FeatureGuard]
[FeatureSwitchDefinition]
[WasmImportLinkage]
Some of the runtime-supported attributes like the first and the last, might be considered too niche to polyfill. I'd be fine with removing them from the PR.
Additional context (optional)
The list of attributes was populated by searching for the string
Attribute {
in files matchingrelease-notes/9.0/**/Microsoft.NETCore.App
in thedotnet/core
repository, and excluding the attributes inSystem.Text.Json
.Test coverage for the language support polyfills was added.