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Id: 131948
Status: new
Priority: 0/
Queue: perl6

Owner: Nobody
Requestors: smls75 [at] gmail.com
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From: Sam S <smls75 [...] gmail.com>
Subject: Typename declared via type capture does not work in return type constraint
To: Rakudo Bugtracker <rakudobug [...] perl.org>
Date: Tue, 22 Aug 2017 22:36:40 +0200
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➜ sub f (::T --> T) { T.new } ➜ f Int; Died with X::TypeCheck::Return in sub f at [...] The type alias T works just fine in the rest of the subroutine signature and body; just not inside the return type constraint, and also not in the return type constraint of any nested subroutine: ➜ sub f (::T) { sub g (--> T) { T.new } } ➜ say f(Int)(); Died with X::TypeCheck::Return in sub g at [...] The alternative `returns T` and `of T` syntaxes suffer from the same problem.


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