Dmitry Petrov
5d9ee7efee
- base class method wins against a (default) interface method, so an abstract base class method should always be implemented in a derived class; - interface methods clash regardless of abstract/default with possibly undefined behavior at run-time, so a class or interface should always define its own method for methods inherited from multiple interfaces and not from base class; - meaningful diagnostics for class inheriting conflicting JVM signatures. Since no override will happen under Java 8 rules, ACCIDENTAL_OVERRIDE is misleading for this case; - update testData.
51 lines
1.4 KiB
Kotlin
Vendored
51 lines
1.4 KiB
Kotlin
Vendored
package override.normal
|
|
|
|
interface MyTrait {
|
|
fun foo()
|
|
val pr : Unit
|
|
}
|
|
|
|
abstract class MyAbstractClass {
|
|
abstract fun bar()
|
|
abstract val prr : Unit
|
|
|
|
}
|
|
|
|
open class MyClass() : MyTrait, MyAbstractClass() {
|
|
override fun foo() {}
|
|
override fun bar() {}
|
|
|
|
override val pr : Unit = Unit
|
|
override val prr : Unit = Unit
|
|
}
|
|
|
|
class MyChildClass() : MyClass() {}
|
|
|
|
<!ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED!>class MyIllegalClass<!> : MyTrait, MyAbstractClass() {}
|
|
|
|
<!ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED!>class MyIllegalClass2<!>() : MyTrait, MyAbstractClass() {
|
|
override fun foo() {}
|
|
override val pr : Unit = Unit
|
|
override val prr : Unit = Unit
|
|
}
|
|
|
|
<!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>class MyIllegalClass3<!>() : MyTrait, MyAbstractClass() {
|
|
override fun bar() {}
|
|
override val pr : Unit = Unit
|
|
override val prr : Unit = Unit
|
|
}
|
|
|
|
<!ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED!>class MyIllegalClass4<!>() : MyTrait, MyAbstractClass() {
|
|
<!VIRTUAL_MEMBER_HIDDEN!>fun foo()<!> {}
|
|
<!VIRTUAL_MEMBER_HIDDEN, MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val pr : Unit<!>
|
|
<!NOTHING_TO_OVERRIDE!>override<!> fun other() {}
|
|
<!NOTHING_TO_OVERRIDE!>override<!> val otherPr : Int = 1
|
|
}
|
|
|
|
class MyChildClass1() : MyClass() {
|
|
<!VIRTUAL_MEMBER_HIDDEN!>fun foo()<!> {}
|
|
<!VIRTUAL_MEMBER_HIDDEN!>val pr : Unit<!> = Unit
|
|
override fun bar() {}
|
|
override val prr : Unit = Unit
|
|
}
|