Usage of that it modifier suppress an excellent derived group regarding after that overriding the house. The fresh accessors out of a close property are sealed.

Apart from differences in declaration and invocation syntax, digital, sealed, override, and you may conceptual accessors respond the same as virtual, shut, bypass and conceptual methods. Particularly, the principles explained when you look at the §14.6.4, §14.six.5, §fourteen.6.six, and §14.6.7 apply since if accessors had been types of a corresponding means:

• A rating accessor corresponds to an excellent parameterless means with an income worth of the home particular and same modifiers once the that has assets.
• An appartment accessor represents a technique that have a single well worth parameter of the home method of, a gap come back types of, and the exact same modifiers because the that has possessions.

X is actually a virtual comprehend-just possessions, Y try an online comprehend-generate possessions, and you can Z is a conceptual comprehend-establish assets. Because Z are abstract, the that contains classification A should additionally be announced abstract.

Here, the newest declarations out of X , Y , and you will Z are overriding assets declarations. For every single property report just fits brand new the means to access modifiers, type of, and you will label of your own corresponding inherited possessions. The new rating accessor off X while the place accessor from Y utilize the feet keyword to get into the fresh inherited accessors. The latest report from Z overrides one another conceptual accessors-hence, there are no the abstract setting participants inside the B , and you may B try permitted to end up being a non-abstract group. prevent example

Whenever a home was announced due to the fact an enthusiastic bypass, any overridden accessors can be offered to the newest overriding password. On the other hand, the fresh new proclaimed accessibility out of both the property otherwise indexer in itself, as well as the latest accessors, should suits regarding the newest overridden associate and you may accessors.

fourteen.8.1 Standard

A meeting was a part which enables an object otherwise group to incorporate announcements. Members can be install executable password getting incidents by the providing feel handlers.

A meeting_statement cover anything from a set of qualities (§21) and a valid mix of the brand new four access modifiers (§14.step 3.6), the (§fourteen.step three.5), fixed (§fourteen.six.step 3, §fourteen.8.4), virtual (§14.6.cuatro, §fourteen.8.5), override (§fourteen.6.5, §14.8.5), sealed (§14.6.6), abstract (§14.six.7, §14.8.5), and extern (§fourteen.6.8) modifiers.

The kind of a conference statement will likely be an excellent outsource_variety of (§8.dos.8), hence subcontract_form of are going to be at least due to the fact obtainable because the feel itself (§eight.5.5).

fourteen.8 Events

A meeting declaration may include feel_accessor_declarations. not, whether or not it doesn’t, for low-extern, non-conceptual events, this new compiler should likewise have her or him immediately (§fourteen.8.2); getting extern situations, the fresh new accessors are given on the exterior.

A meeting declaration one omits feel_accessor_declarations talks of a minumum of one occurrences-you to definitely for each and every of your variable_declarators. The latest attributes and you can modifiers affect every people stated because of the such as for example an event_statement.

When a conference declaration comes with an enthusiastic extern modifier, the big event is said to get an outward feel. Since the an outward experience statement brings no actual implementation, it’s a blunder for this to include the extern modifier and you will feel_accessor_declarations.

It is an assemble-go out error to own a changeable_declarator from a conference declaration which have an abstract otherwise additional modifier to incorporate a varying_initializer.

An event can be used due to the fact remaining-give operand of one’s += and you will -= workers. These https://datingranking.net/tr/bumble-inceleme operators can be used, respectively, to attach event handlers to help you, or perhaps to reduce enjoy handlers from an event, together with supply modifiers of your feel handle the new contexts for the and therefore such as for instance businesses are permitted.

Truly the only functions which can be enabled into the a conference by the password which is away from input and that that skills is declared, are += and -= . Thus, when you find yourself for example code will add and take off handlers for an event, it cannot physically obtain otherwise customize the underlying set of enjoy handlers.

When you look at the an operation of the mode x += y or x –= y , when x are an event the result of the operation possess form of emptiness (§.4) (in the place of acquiring the version of x , into value of x after the task, as for most other the += and you will -= operators defined on the non-knowledge designs). So it suppresses outside code from ultimately examining the hidden delegate out-of an event.