Ada Programming/Keywords/interface

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This language feature is only available from Ada 2005 on.

Used to declare an interface. Interfaces are the most important innovation in Ada 2005. The basic semantic has been taken from the interface concept of the Java programming language. Interface inheritance is a reduced form of multiple inheritance.

Interface types edit

There are various forms of interfaces available:

Normal interface edit

The normal interface is declared as:

 type Printable is interface;

Limited interface edit

Can be used as interface to limited tagged type.

 type Printable is limited interface;

Synchronized interface edit

type Printable is synchronized interface;

All synchronized interfaces are also limited.

Task interface edit

Can be used as an interface to a task type.

type Printable is task interface;

All task interfaces are also synchronized.

Protected interface edit

Can be used as an interface to a protected type.

 type Printable is protected interface;

All protected interfaces are also synchronized.

See also edit

Wikibook edit

Ada Reference Manual edit

Ada 2005 edit

3.9.4 Interface Types (Annotated)

Ada Quality and Style Guide edit

3.1.3 Capitalization

Ada Keywords
`abort`	`else`	`new`	`return`
`abs`	`elsif`	`not`	`reverse`
`abstract` (Ada 95)	`end`	`null`
`accept`	`entry`		`select`
`access`	`exception`	`of`	`separate`
`aliased` (Ada 95)	`exit`	`or`	`some` (Ada 2012)
`all`		`others`	`subtype`
`and`	`for`	`out`	`synchronized` (Ada 2005)
`array`	`function`	`overriding` (Ada 2005)
`at`			`tagged` (Ada 95)
	`generic`	`package`	`task`
`begin`	`goto`	`parallel` (Ada 2022)	`terminate`
`body`		`pragma`	`then`
	`if`	`private`	`type`
`case`	`in`	`procedure`
`constant`	`interface` (Ada 2005)	`protected` (Ada 95)	`until` (Ada 95)
	`is`		`use`
`declare`		`raise`
`delay`	`limited`	`range`	`when`
`delta`	`loop`	`record`	`while`
`digits`		`rem`	`with`
`do`	`mod`	`renames`
		`requeue` (Ada 95)	`xor`