Possible resolution of KT-58964 (Consider moving content of section 5.1.2 (Sealed classes and interfaces) under section 4.1 (Declarations > Classifier declaration)) #134
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…rs with references
ice-phoenix
requested changes
Mar 3, 2025
| Class inheritance behaviour can be changed using modifiers, such as `open`, [`abstract`][Abstract classes] and [`sealed`][Sealed classes and interfaces]. | ||
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| - Modifier `open` allows for a class to be inherited from. By default classes are [closed][Classifier type inheritance] (that is, they cannot be inherited from), one should add this modifier to change the behaviour. | ||
| - Modifier [`abstract`][Abstract classes] allows for a class to have members without implementation (that is, *abstract members*). Such classes *cannot* be instantiated directly; they are used as superclasses for other classes or objects. Abstract members should be implemented in a subtype of this abstract class. |
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Suggested change
| - Modifier [`abstract`][Abstract classes] allows for a class to have members without implementation (that is, *abstract members*). Such classes *cannot* be instantiated directly; they are used as superclasses for other classes or objects. Abstract members should be implemented in a subtype of this abstract class. | |
| - Modifier [`abstract`][Abstract classes] allows for a class to have members without implementation (that is, *abstract members*). Such classes *cannot* be instantiated directly; they are used as superclasses for other classes or objects. Abstract members must be implemented in a non-abstract subtype of this abstract class. |
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| - Modifier `open` allows for a class to be inherited from. By default classes are [closed][Classifier type inheritance] (that is, they cannot be inherited from), one should add this modifier to change the behaviour. | ||
| - Modifier [`abstract`][Abstract classes] allows for a class to have members without implementation (that is, *abstract members*). Such classes *cannot* be instantiated directly; they are used as superclasses for other classes or objects. Abstract members should be implemented in a subtype of this abstract class. | ||
| - Modifier [`sealed`][Sealed classes and interfaces] works similarly to the `abstract`, but for *sealed* classes inheritance is limited to the module it was defined in. |
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Suggested change
| - Modifier [`sealed`][Sealed classes and interfaces] works similarly to the `abstract`, but for *sealed* classes inheritance is limited to the module it was defined in. | |
| - Modifier [`sealed`][Sealed classes and interfaces] works similarly to the `abstract` modifier, but for *sealed* classes inheritance is limited to the module it was defined in. |
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Changed the subsubsection to be about all three modifiers instead just restating information about
abstract(since neitheropennorsealedare mentioned before chapter 5). Bothabstractandsealedare mostly links to the corresponding subsubsections in the "Inheritance" chapter (5), however there is no specific part about theopenmodifier, despite it being used heavily in both text and examples of chapters 3 and 4.