When the effective return type of a method is not void and the method has an expression body, E , the expression shall be implicitly convertible to the effective return type, and the body is exactly equivalent to a block body of the form < return>.
the importance-returning F approach results in a collect-date mistake given that handle is disperse off the stop of strategy human body. The brand new Grams and you can H methods try correct since all you’ll performance paths bring about an income declaration one to determine a revenue well worth. The fresh new We method is proper, because the person is equal to an announcement stop with only one return statement involved. end example
14.seven.step 1 General
Types of attributes are the duration of a sequence, how big is a great font, the latest caption away from a screen, title away from a customer, and so on. Attributes is a natural extension of fields-both are entitled players with related versions, together with syntax having opening sphere and you will qualities is the same. not, instead of areas, attributes do not signify shop towns. Alternatively, qualities has accessors you to identify the comments getting carried out whenever the beliefs try discover or authored. Qualities hence promote a system having associating actions into the discovering and you can composing away from an enthusiastic object’s qualities; furthermore, they enable such as for instance functions getting computed.
A home_report range from a collection of services (§21) and you will a legitimate combination of new four availability modifiers (§fourteen.3.6), the (§fourteen.step 3.5), static (§14.eight.2), virtual (§fourteen.six.cuatro, §14.7.6), override (§fourteen.6.5, §14.seven.6), sealed (§fourteen.6.6), abstract (§fourteen.6.eight, §14.7.6), and you can extern (§fourteen.six.8) modifiers.
The sort of a property declaration specifies the sort of brand new possessions produced from the elizabeth (§14.six.1) specifies title of the house. Except if the home is actually a direct software representative implementation, brand new representative_name’s merely a keen identifier. To own an explicit program user execution (§17.six.2), the affiliate_title include an user interface_type with a ” . ” and you may an identifier.
A property_body may either consist of an accessor body or an expression body. In an accessor body, accessor_declarations, which shall be enclosed in ” < ">” tokens, declare the accessors (§14.7.3) of the property. The accessors specify the executable statements associated with reading and writing the property.
An expression body consisting of => followed by an expression E and a semicolon is exactly equivalent to the statement body < get>> , and can therefore only be used to specify getter-only properties where the result of the getter is given by a single expression.
A house_initializer may only be given for an automatically accompanied assets (§14.seven.4), and causes the brand new initialization of one’s fundamental arena of such as attributes on the worthy of provided by the word.
Even though the sentence structure having accessing a home is the identical as one to have a field, a house is not categorized as a varying. Therefore, that isn’t you are able to to pass property as the good ref http://www.datingranking.net/pl/luvfree-recenzja/ otherwise out argument.
Whenever a house statement is sold with an enthusiastic extern modifier, the property is claimed getting an outward possessions. Once the an external assets report will bring not any implementation, every one of its accessor_declarations include an excellent semicolon.
fourteen.7.2 Fixed and eg qualities
When a house statement has a static modifier, the home is claimed getting a static possessions. When zero fixed modifier can be acquired, the house is claimed is an incident property.
A static property is perhaps not from the a particular eg, and it is an amass-big date mistake to refer to that throughout the accessors from a beneficial fixed possessions.
A situation home is of this certain illustration of a beneficial group, and this instance will likely be reached that (§eleven.eight.12) from the accessors of that assets.
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