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Colby Mchenry
60b2f1e7bb
A crate can't declare a method on String, Vec, Arc or NonNull, only
implement a trait for one, and name matching took those impls for any
call of that name. Every String::from("...") in dioxus's CLI went to its
impl From<IDI> for String, tokio's NonNull::from(waiter) calls to its
impl From<&Handle> for NonNull<Entry>, its tests' files.iter() to an
internal Storage trait's impl for Vec, and clap's String::from calls
to its impl From<Str> for OsString.
A call into a method of a project impl on a std type now stands only
when Rust could pick it. A std trait (From, PartialEq, ...) is
implemented for the crate's own type argument, so the call must pass
one: built from it (IDI::Install), self in an impl of it, or a name
the enclosing function declares with it (fn from(name: Str)). A trait
of the project's must be in scope in the calling file: declared,
implemented or imported there, or brought in by a glob that may carry
it. Otherwise the call is left unresolved, since what it calls is the
standard library's.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>