Rules / Types, classes & roles / exception

X::Syntax::Signature::InvocantMarker Reference

Compilation error due to a misplaced invocant marker in a signature

What it is #

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::Syntax::Signature::InvocantMarker does X::Syntax { }

Not executed: the documentation states no expected output for this example.

:($a, $b: $c);

Not executed: the documentation states no expected output for this example.

Can only use : as invocant marker in a signature after the first parameter

Not executed: the documentation states no expected output for this example.