pub fn describe_via_components(
summary: &&str,
role: &dyn RawKeySpecifierComponent,
extra_keys: &&[&str],
extra_info: &[&dyn KeySpecifierComponent],
) -> Result<KeyPathInfo, Bug>Expand description
Build a KeyPathInfo given the information about a key specifier
Calling pattern, to minimise macro-generated machine code,
is similar arti_path_from_components.
The macro-generated code parses the path into its KeySpecifier impl
(as an owned value) and then feeds references to the various fields
to describe_via_components.