X::Parameter::Twigil Reference
Compilation error due to an unallowed twigil in a signature
What it is #
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 parameter #
The name of the offensive parameter ($=foo in the example above)
method twigil #
The illegally used twigil.
Examples, run three ways #
Every example below comes from the official documentation, together with the output that documentation asserts. Each was then executed by Rakudo and by Raku++ when this page was built. Where the three agree, one result is shown; where they do not, all three are — because which of them is wrong is exactly the information worth having.
3 no-output
class X::Parameter::Twigil does X::Comp { }Not executed: the documentation states no expected output for this example.
sub f($=foo) { }Not executed: the documentation states no expected output for this example.
In signature parameter $=foo, it is illegal to use the = twigil
Not executed: the documentation states no expected output for this example.