Difference between revisions of "PHP/native/BackedEnum"
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(Created page with "{{fmt/title|BackedEnum pseudointerface}} * '''manual page''': [https://www.php.net/manual/en/class.backedenum.php The BackedEnum interface] Note that this cannot actually be...") |
(pseudocode in official doc did not include "function" in method declarations) |
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| − | {{fmt/title|BackedEnum pseudointerface | + | {{fmt/title|BackedEnum pseudointerface|'''manual page''': [https://www.php.net/manual/en/class.backedenum.php The BackedEnum interface]}} |
| − | |||
| − | Note that this cannot actually be implemented as a class | + | Note that this (pseudo)interface cannot actually be implemented as a standard class; it can only be (pseudo)implemented by declaring a backed {{l/php|enum}}. |
==Definition== | ==Definition== | ||
<syntaxhighlight lang=php> | <syntaxhighlight lang=php> | ||
interface BackedEnum extends UnitEnum { | interface BackedEnum extends UnitEnum { | ||
| − | |||
| − | |||
| − | |||
| − | string| | + | static function from(int|string $value): static; |
| + | static function tryFrom(int|string $value): ?static; | ||
| − | / | + | string|int $value; // pseudocode |
| − | |||
| − | |||
| − | string $name; // | + | // INHERITED from UnitEnum (unmodified): |
| + | |||
| + | static function cases(): array; | ||
| + | string $name; // pseudocode | ||
} | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| + | The member-variables are labelled "pseudocode" because a normal {{l/php|interface}} can't declare member-variables. | ||
Latest revision as of 14:24, 25 August 2024
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BackedEnum pseudointerface manual page: The BackedEnum interface
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Note that this (pseudo)interface cannot actually be implemented as a standard class; it can only be (pseudo)implemented by declaring a backed enum.
Definition
interface BackedEnum extends UnitEnum {
static function from(int|string $value): static;
static function tryFrom(int|string $value): ?static;
string|int $value; // pseudocode
// INHERITED from UnitEnum (unmodified):
static function cases(): array;
string $name; // pseudocode
}
The member-variables are labelled "pseudocode" because a normal interface can't declare member-variables.