extension_ type_ representation_ type_ bottom
The representation type can't be a bottom type.
Description
#
The analyzer produces this diagnostic when the representation type of an
extension type is the
bottom type
Never
. The type
Never
can't be
the representation type of an extension type because there are no values
that can be extended.
Example
#
The following code produces this diagnostic because the representation
type of the extension type
E
is
Never
:
extension type E(Never n) {}
Common fixes
#Replace the extension type with a different type:
extension type E(String s) {}
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