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FE1.0: keep nullability when approximating local types (in 1.9)

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Report an error that inference will change and type has to be provided
manually in other language versions, since the current behavior is an
unsoundness that can cause runtime NPEs while the new behavior may
silently change overload resolution.

^KT-30054 Fixed
This commit is contained in:
pyos
2022-09-12 12:59:42 +02:00
committed by teamcity
parent 062308c7c1
commit adcbc5ec99
9 changed files with 44 additions and 3 deletions
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compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt
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@@ -278,6 +278,7 @@ enum class LanguageFeature(
ForbidInferringTypeVariablesIntoEmptyIntersection(KOTLIN_1_9, kind = BUG_FIX), // KT-51221
ForbidExtensionCallsOnInlineFunctionalParameters(KOTLIN_1_9, kind = BUG_FIX), // KT-52502
ForbidInferringPostponedTypeVariableIntoDeclaredUpperBound(KOTLIN_1_9, kind = BUG_FIX), // KT-47986
KeepNullabilityWhenApproximatingLocalType(KOTLIN_1_9, kind = BUG_FIX), // KT-53982
SkipStandaloneScriptsInSourceRoots(KOTLIN_1_9, kind = OTHER), // KT-52525
ModifierNonBuiltinSuspendFunError(KOTLIN_1_9),
BreakContinueInInlineLambdas(KOTLIN_1_9, defaultState = State.ENABLED), // KT-1436