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Corrected usages of isNullableType/isMarkedNullable

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This commit is contained in:
Valentin Kipyatkov
2014-12-03 22:09:01 +03:00
parent 9f845f0de4
commit 191d3e2766
6 changed files with 29 additions and 7 deletions
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core/descriptors/src/org/jetbrains/jet/lang/types/flexibleTypes.kt
+5
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@@ -61,6 +61,11 @@ public trait Flexibility : TypeCapability, SubtypingRepresentatives {
public fun JetType.isFlexible(): Boolean = this.getCapability(javaClass<Flexibility>()) != null
public fun JetType.flexibility(): Flexibility = this.getCapability(javaClass<Flexibility>())!!
public fun JetType.isNullabilityFlexible(): Boolean {
val flexibility = this.getCapability(javaClass<Flexibility>()) ?: return false
return TypeUtils.isNullableType(flexibility.lowerBound) != TypeUtils.isNullableType(flexibility.upperBound)
}
// This function is intended primarily for sets: since JetType.equals() represents _syntactical_ equality of types,
// whereas JetTypeChecker.DEFAULT.equalsTypes() represents semantical equality
// A set of types (e.g. exact bounds etc) may contain, for example, X, X? and X!