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

Compile time error thrown when two named parameters have the same name, potentially through aliases.

For example

sub f(:$a, :a(:@b)) { }

dies with

===SORRY!===
Name a used for more than one named parameter

Methods

method name

method name(--> Str:D)

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