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Shouldn't enumHOW get a "roles" method? #2156

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JJ opened this issue Jul 31, 2018 · 0 comments
Open

Shouldn't enumHOW get a "roles" method? #2156

JJ opened this issue Jul 31, 2018 · 0 comments
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enumerations

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JJ commented Jul 31, 2018

The Problem

enums are built using the enumHOW protocol; that is why they, unlike those classes built using classHow, it does not have a roles method. However, an enum can have a single role (in fact, it does have a $!role).

Expected Behavior

For consistency and because it effectively has a role, it should be possible to use ^roles on enums.
JJ added a commit to Raku/doc that referenced this issue Aug 1, 2018
@JJ
Adds new page for enumeration.
e1642ee 
Along the way,

* [this question in
SO](https://stackoverflow.com/questions/51632394/assigning-a-value-to-the-attribute-of-a-mixed-in-role),
* Rakudo issue rakudo/rakudo#2165 on behavior of enumHOW
* Rakudo issue rakudo/rakudo#2156 on behavior of enumHOW again.
* A failed PR trying to change the behavior of Enumeration.

It is not complete, because some stuff would have to change in Rakudo
first, but it's there. So this closes #1555
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@JJ @lucasbuchala