Nikolay Lunyak
226d4df277
It was decided to forbid such comparisons, as we know how `===` works. Also, added some more test cases, just for comparison. Reusing the proper `canHaveSubtypes()` from `TypeUtils` prevents a breaking change in: - `comparingTripleWithPair.kt` - `comparisonOfGenericInterfaceWithGenericClass.kt` But it does lead to warnings (instead of errors) in `incompatibleEnumEntryClasses.kt`, which is an unrelated mistake that will be fixed in the next commit. The refactoring in `canHaveSubtypes()` is purely cosmetic - otherwise reading these conditions is hard (and they don't fit my screen vertically). ^KT-62646 ^KT-65541 ^KT-57779
79 lines
2.8 KiB
Kotlin
Vendored
79 lines
2.8 KiB
Kotlin
Vendored
interface Buffered {
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fun flush()
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}
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interface AIPowered {
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fun getAvatarReleaseYear(): Int
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}
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enum class BufferedEnum : Buffered {
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A, B;
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override fun flush() {}
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}
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enum class UsualEnum {
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C, D;
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}
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enum class CleverEnum : Buffered, AIPowered {
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E, F;
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override fun flush() {}
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override fun getAvatarReleaseYear() = 2022
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}
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fun <P> processInfo1(info: String, printer: P) where P: Buffered, P: AIPowered {
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<!EQUALITY_NOT_APPLICABLE!>printer == 20<!>
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printer == BufferedEnum.A
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer == UsualEnum.C<!>
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printer == CleverEnum.E
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<!EQUALITY_NOT_APPLICABLE!>printer === 20<!>
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printer === BufferedEnum.A
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer === UsualEnum.C<!>
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printer === CleverEnum.E
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}
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fun <P> processInfo2(info: String, printer: P) where P: AIPowered, P: Buffered {
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<!EQUALITY_NOT_APPLICABLE!>printer == 20<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer == BufferedEnum.A<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer == UsualEnum.C<!>
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printer == CleverEnum.E
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<!EQUALITY_NOT_APPLICABLE!>printer === 20<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer === BufferedEnum.A<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer === UsualEnum.C<!>
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printer === CleverEnum.E
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}
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abstract class Printer {
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abstract fun print(command: String)
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}
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fun <P> processInfo3(info: String, printer: P) where P: Buffered, P: Printer {
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<!EQUALITY_NOT_APPLICABLE!>printer == 20<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer == BufferedEnum.A<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer == UsualEnum.C<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer == CleverEnum.E<!>
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<!EQUALITY_NOT_APPLICABLE!>printer === 20<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer === BufferedEnum.A<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer === UsualEnum.C<!>
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<!INCOMPATIBLE_ENUM_COMPARISON_ERROR!>printer === CleverEnum.E<!>
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}
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fun test(a: Int, b: Any?) {
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<!IMPLICIT_BOXING_IN_IDENTITY_EQUALS!>a === b<!>
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}
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fun <<!INCONSISTENT_TYPE_PARAMETER_BOUNDS, MISPLACED_TYPE_PARAMETER_CONSTRAINTS!><!CONFLICTING_UPPER_BOUNDS!>T<!>: <!FINAL_UPPER_BOUND!>Int<!><!>> rest(a: T, b: Any?) where T : <!FINAL_UPPER_BOUND, ONLY_ONE_CLASS_BOUND_ALLOWED!>String<!> {
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a === b
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}
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fun <<!MISPLACED_TYPE_PARAMETER_CONSTRAINTS!>T: Any?<!>> nest(a: Int, b: T) where T : <!FINAL_UPPER_BOUND, ONLY_ONE_CLASS_BOUND_ALLOWED!>String<!> {
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<!EQUALITY_NOT_APPLICABLE!>a === b<!>
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}
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fun <<!INCONSISTENT_TYPE_PARAMETER_BOUNDS, MISPLACED_TYPE_PARAMETER_CONSTRAINTS!><!CONFLICTING_UPPER_BOUNDS!>T<!>: <!FINAL_UPPER_BOUND!>Int<!><!>, <!MISPLACED_TYPE_PARAMETER_CONSTRAINTS!>K: Any?<!>> mest(a: T, b: K) where T : <!FINAL_UPPER_BOUND, ONLY_ONE_CLASS_BOUND_ALLOWED!>String<!>, K: <!FINAL_UPPER_BOUND, ONLY_ONE_CLASS_BOUND_ALLOWED!>Boolean<!> {
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a === b
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}
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