Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Clarify that an extension type _can_ have instance variables which are external #3303

Merged
merged 1 commit into from
Aug 23, 2023
Merged

Clarify that an extension type _can_ have instance variables which are external #3303

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 4 additions & 1 deletion accepted/future-releases/extension-types/feature-specification.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -429,7 +429,10 @@ disambiguate the extension type declaration with a fixed lookahead.*
Some errors can be detected immediately from the syntax:

A compile-time error occurs if the extension type declaration declares any
instance variables.
instance variables, unless they are `external`.

*An external instance variable is just a convenient notation for an external
getter and (if not `final`) an external setter. They are allowed.*
eernstg marked this conversation as resolved.
Show resolved Hide resolved

The _name of the representation_ in an extension type declaration with a
representation declaration of the form `(T id)` is the identifier `id`, and
Expand Down