class X::Parameter::Twigil

Compilation error due to an unallowed twigil in a signature

Raku highlighting

class X::Parameter::Twigil does X::Comp { }

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Thrown when a parameter in a signature has a twigil that it may not have. Only !, . and * as twigils are allowed.

Example:

Raku highlighting

sub f($=foo) { }

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dies with

text

===SORRY!===
In signature parameter $=foo, it is illegal to use the = twigil

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Methods §

The name of the offensive parameter ($=foo in the example above)

The illegally used twigil.