Enum QualifierOwnerSelection 

pub enum QualifierOwnerSelection {
    Unchanged,
    Selected(Vec<String>),
    Ambiguous,
}

How a qualified type’s qualifier selects the owner of the member it names.

Variants

Unchanged

No qualifier applies template arguments or names an alias, or the arguments select the primary template, which the ordinary component lookup already names.

Selected(Vec<String>)

The qualifier selects an owner the plain spelling does not reach: a specialization its arguments name, or the class an alias qualifier denotes. Look the rest of the path up through the owner’s own scope components.

Ambiguous

The arguments cannot be bound, more than one specialization applies, or the alias arms the reference admits disagree. The reference stays unproven rather than falling back to the primary template’s member.