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FIR: keep nullability of lambda return type

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This commit is contained in:
Jinseong Jeon
2020-12-04 23:18:58 -08:00
committed by Mikhail Glukhikh
parent 28a1d1ceac
commit 3d7d87ace5
2 changed files with 3 additions and 4 deletions
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compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/PostponedArgumentsAnalyzer.kt
+3 -3
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@@ -13,8 +13,7 @@ import org.jetbrains.kotlin.fir.resolve.calls.*
import org.jetbrains.kotlin.fir.resolve.diagnostics.ConeUnresolvedReferenceError
import org.jetbrains.kotlin.fir.resolve.substitution.ConeSubstitutor
import org.jetbrains.kotlin.fir.resolve.transformers.StoreNameReference
import org.jetbrains.kotlin.fir.types.ConeKotlinType
import org.jetbrains.kotlin.fir.types.ConeTypeVariable
import org.jetbrains.kotlin.fir.types.*
import org.jetbrains.kotlin.fir.types.builder.buildResolvedTypeRef
import org.jetbrains.kotlin.resolve.calls.components.PostponedArgumentsAnalyzerContext
import org.jetbrains.kotlin.resolve.calls.inference.ConstraintSystemBuilder
@@ -117,7 +116,8 @@ class PostponedArgumentsAnalyzer(
c.canBeProper(rawReturnType) -> substitute(rawReturnType)
// For Unit-coercion
c.hasUpperOrEqualUnitConstraint(rawReturnType) -> unitType
c.hasUpperOrEqualUnitConstraint(rawReturnType) ->
if (rawReturnType.isMarkedNullable) unitType.withNullability(ConeNullability.NULLABLE) else unitType
else -> null
}
compiler/testData/codegen/box/inference/noCoercionToUnitWithEqualityConstraintForNullableReturnType.kt
Vendored
-1
View File
@@ -1,6 +1,5 @@
// DONT_TARGET_EXACT_BACKEND: WASM
// WASM_MUTE_REASON: UNIT_ISSUES
// IGNORE_BACKEND_FIR: JVM_IR
class Inv<T>(val x: T?)