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FIR: Refine inference constraints when type variable in flexible position

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That issue might be fixed via changing
TypeVariableMarker.shouldBeFlexible at ConeConstraintSystemUtilContext
but this and some other tricks have been added because of incorrect
handling of constraints where type variable has a flexible bound

^KT-51168 Fixed
This commit is contained in:
Denis.Zharkov
2022-04-12 16:30:55 +03:00
committed by teamcity
parent 853b7ec078
commit f70ae2df3a
54 changed files with 411 additions and 154 deletions
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compiler/fir/analysis-tests/testData/resolve/extendedCheckers/canBeReplacedWithOperatorAssignment/flexibleTypeBug.fir.txt
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+1 -1
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@@ -1,6 +1,6 @@
FILE: flexibleTypeBug.kt
public final fun foo(): R|kotlin/Unit| {
lvar list1: R|ft<kotlin/collections/MutableList<ft<kotlin/String, kotlin/String?>>, kotlin/collections/List<ft<kotlin/String, kotlin/String?>>?>| = Q|java/util/Collections|.R|java/util/Collections.emptyList|<R|ft<kotlin/String, kotlin/String?>|>()
lvar list1: R|ft<kotlin/collections/MutableList<ft<kotlin/String, kotlin/String?>>, kotlin/collections/List<ft<kotlin/String, kotlin/String?>>?>| = Q|java/util/Collections|.R|java/util/Collections.emptyList|<R|kotlin/String|>()
lval list2: R|kotlin/collections/List<kotlin/String>| = R|kotlin/collections/listOf|<R|kotlin/String|>(String(b))
R|<local>/list1| = R|<local>/list1|.R|kotlin/collections/plus|<R|ft<kotlin/String, kotlin/String?>|>(R|<local>/list2|)
}