A keen overriding possessions report include the latest shut modifier
Usage of it modifier inhibits good derived class regarding next overriding the property. The brand new accessors out-of a close property also are closed.
Apart from differences in statement and you can invocation syntax, digital, close, bypass, and conceptual accessors act like virtual, shut, bypass and abstract actions. Particularly, the principles discussed within the §fourteen.6.cuatro, §fourteen.6.5, §14.6.six, and §fourteen.six.7 incorporate since if accessors was types of a corresponding form:
- A rating accessor represents an excellent parameterless strategy with an income worth of the house or property type of and also the exact same modifiers since that has property.
- A-flat accessor represents a method having a single well worth factor of the home sort of, a gap come back type of, and exact same modifiers while the which has property.
X is actually a virtual see-just possessions, Y was a virtual see-write property, and you will Z is actually an abstract understand-generate possessions. Since the Z are abstract, the new that features classification A will additionally be stated abstract.
Here, the declarations of X , Y , and you may Z try overriding possessions declarations. Each property declaration exactly matches the fresh access to modifiers, particular, and you may name of one’s associated passed on possessions. The new get accessor from X as well as the lay accessor out of Y utilize the feet keyword to get into the inherited accessors. New declaration of Z overrides each other abstract accessors-hence, there are not any a good abstract form members within the B , and you may B was permitted to end up being a non-conceptual class. end example
Whenever a home are announced since the an enthusiastic bypass, people overridden accessors would be offered to new overriding code. While doing so, this new stated usage of of the assets or indexer itself, as well as the fresh accessors, shall fits that the newest overridden representative and you may accessors.
fourteen.8.step one General
A meeting is actually a member that enables an item otherwise group to incorporate notifications. Readers can also be mount executable code to own incidents because of the offering event handlers.
A conference_report vary from a set of qualities (§21) and a legitimate combination of the latest four access modifiers (§14.step 3.6), the newest (§14.step three.5), static (§14.6.3, §fourteen.8.4), digital (§fourteen.six.4, §14.8.5), override (§14.6.5, §14.8.5), closed (§fourteen.6.6), conceptual (§fourteen.six.seven, §14.8.5), and you will extern (§14.six.8) modifiers.
The kind of www.datingranking.net/pl/seniorpeoplemeet-recenzja a conference statement shall be an excellent delegate_type of (§8.dos.8), and this delegate_method of would be no less than because obtainable just like the experiences alone (§eight.5.5).
fourteen.8 Events
A meeting statement include feel_accessor_declarations. not, if this will not, for non-extern, non-conceptual events, the brand new compiler shall also provide them immediately (§14.8.2); for extern occurrences, the brand new accessors are offered externally.
A conference declaration you to omits experiences_accessor_declarations describes no less than one events-one to for every single of your own changeable_declarators. Brand new properties and modifiers apply at all of the people declared from the such as an event_report.
When a conference statement comes with a keen extern modifier, the event is considered becoming an outward experiences. Once the an external feel report will bring not any implementation, it’s a mistake for this to add the extern modifier and you may feel_accessor_declarations.
It’s a collect-time mistake getting a changeable_declarator off a conference declaration having an abstract or outside modifier to add a changeable_initializer.
A conference can be used because leftover-give operand of your += and you can -= providers. Such operators are utilized, correspondingly, to add skills handlers in order to, or perhaps to eliminate experience handlers out of a conference, and the access modifiers of the knowledge handle brand new contexts within the which for example functions are permitted.
The actual only real operations which can be let with the a meeting from the code that’s outside the type in and therefore that skills try stated, is += and -= . Hence, when you are like password will add and take away handlers to possess a meeting, it cannot actually obtain otherwise customize the fundamental directory of knowledge handlers.
Inside the a process of your own function x += y or x –= y , when x are an event the consequence of the latest procedure possess sorts of emptiness (§.4) (unlike obtaining kind of x , towards value of x following assignment, for other the brand new += and you can -= operators discussed to the low-feel brands). That it suppress outside code out-of ultimately examining the hidden subcontract away from an event.