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testcases
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extension_types
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issue52542.dart.textual_outline.expect
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extension type
const
Option
<
V
>(
Object
?
_value
)
{
static
const
Option
<
Never
>
none
=
const
None
()
as
Option
<
Never
>;
V
get
value
=>
_value
is
None
?
(
throw
StateError
(
"No Value"
))
:
_value
as
V
;
}
class
None
{
const
None
();
}