Rules / Types, classes & roles / exception

X::Signature::NameClash Reference

Compilation error due to two named parameters with the same name

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 name #

method name(--> Str:D)

Returns Str:D.

Returns the name that was used for more than one parameter.

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

my class X::Signature::NameClash does X::Comp { }

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

sub f(:$a, :a(:@b)) { }

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

Name a used for more than one named parameter

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