Rules / Types, classes & roles / exception

X::Constructor::Positional Reference

Error due to passing positional arguments to a default constructor

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.

1 no-output · 1 ok

class X::Constructor::Positional is Exception { }

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

class A { };
A.new(2, 3);
CATCH { default { put .^name, ': ', .Str } };
# OUTPUT: «X::Constructor::Positional: Default constructor for 'A' only takes named arguments␤»
Output
X::Constructor::Positional: Default constructor for 'A' only takes named arguments

Documentation, Rakudo and Raku++ all agree.