Metamodel::Versioning Reference

Metaobjects that support versioning

What it is #

role Metamodel::Versioning { ... }

Position in the hierarchy #

Routines #

Signatures are reproduced from the documentation, including their declared return types. A routine listed here is part of the type's published interface; whether Raku++ implements it is a separate question, answered by the examples below.

method ver #

method ver($obj)

Returns the version of the metaobject, if any, otherwise returns Mu.

method auth #

method auth($obj)

Returns the author of the metaobject, if any, otherwise returns an empty string.

method api #

method api($obj)

Returns the API of the metaobject, if any, otherwise returns an empty string.

method set_ver #

method set_ver($obj, $ver)

Sets the version of the metaobject.

method set_auth #

method set_auth($obj, $auth)

Sets the author of the metaobject.

method set_api #

method set_api($obj, $api)

Sets the API of the metaobject.

Examples, run three ways #

Every example below comes from the official documentation, together with the output that documentation asserts. Each was then executed by Rakudo and by Raku++ when this page was built. Where the three agree, one result is shown; where they do not, all three are — because which of them is wrong is exactly the information worth having.

2 ok

class Versioned:ver<0.0.1>:auth<github:Kaiepi>:api<1> { }

say Versioned.^ver;  # OUTPUT: «v0.0.1␤»
say Versioned.^auth; # OUTPUT: «github:Kaiepi␤»
say Versioned.^api;  # OUTPUT: «1␤»

v0.0.1
github:Kaiepi
1

BEGIN {
class Versioned { }
Versioned.^set_ver:  v0.0.1;
Versioned.^set_auth: 'github:Kaiepi';
Versioned.^set_api:  <1>;
}

say Versioned.^ver;  # OUTPUT: «v0.0.1␤»
say Versioned.^auth; # OUTPUT: «github:Kaiepi␤»
say Versioned.^api;  # OUTPUT: «1␤»

v0.0.1
github:Kaiepi
1