Macro fcw
Source macro_rules! fcw {
(FutureReleaseError # $issue_number: literal) => { ... };
(FutureReleaseSemanticsChange # $issue_number: literal) => { ... };
($description: literal # $issue_number: literal) => { ... };
(EditionError $edition_name: tt $page_slug: literal) => { ... };
(EditionSemanticsChange $edition_name: tt $page_slug: literal) => { ... };
(EditionAndFutureReleaseSemanticsChange $edition_name: tt $page_slug: literal) => { ... };
(EditionAndFutureReleaseError $edition_name: tt $page_slug: literal) => { ... };
(@edition 2024) => { ... };
(@edition 2021) => { ... };
(@edition 2018) => { ... };
}