Joe Groff ba3494802a Alternative noncopyable switch design based on expression kind. ...

If an expression refers to noncopyable storage, then default to performing
a borrowing switch, where `let` bindings in patterns borrow out of the
matched value. If an expression refers to a temporary value or explicitly
uses the `consume` keyword, then perform a consuming switch, where
`let` bindings take ownership of corresponding parts of the matched value.
Allow `_borrowing` to still be used to explicitly bind a pattern variable
as a borrow, with no-implicit-copy semantics for copyable values.

2024-03-28 08:32:48 -07:00

26 KiB

Raw Blame History

View Raw