Add --disableLanguageFeature CLI switch and MSBuild property to selectively disable language features #19167
+394
−32
Azure Pipelines / fsharp-ci
failed
Dec 16, 2025 in 21m 32s
Build #20251216.19 failed
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Check failure on line 443 in src/Compiler/Facilities/LanguageFeatures.fs
azure-pipelines / fsharp-ci
src/Compiler/Facilities/LanguageFeatures.fs#L443
src/Compiler/Facilities/LanguageFeatures.fs(443,36): error FS3264: (NETCORE_ENGINEERING_TELEMETRY=Build) Nullness warning: Downcasting from 'objnull' into 'LanguageFeature' can introduce unexpected null values. Cast to 'LanguageFeature|null' instead or handle the null before downcasting.
Check failure on line 24 in Build log
azure-pipelines / fsharp-ci
Build log #L24
Bash exited with code '1'.
Check failure on line 443 in src/Compiler/Facilities/LanguageFeatures.fs
azure-pipelines / fsharp-ci
src/Compiler/Facilities/LanguageFeatures.fs#L443
src/Compiler/Facilities/LanguageFeatures.fs(443,36): error FS3264: (NETCORE_ENGINEERING_TELEMETRY=Build) Nullness warning: Downcasting from 'objnull' into 'LanguageFeature' can introduce unexpected null values. Cast to 'LanguageFeature|null' instead or handle the null before downcasting.
Check failure on line 443 in src/Compiler/Facilities/LanguageFeatures.fs
azure-pipelines / fsharp-ci
src/Compiler/Facilities/LanguageFeatures.fs#L443
src/Compiler/Facilities/LanguageFeatures.fs(443,36): error FS3264: (NETCORE_ENGINEERING_TELEMETRY=Build) Nullness warning: Downcasting from 'objnull' into 'LanguageFeature' can introduce unexpected null values. Cast to 'LanguageFeature|null' instead or handle the null before downcasting.
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