Enum rustc_hir_analysis::collect::lifetimes::BinderScopeType

enum BinderScopeType {
    Normal,
    Concatenating,
}

Variants

Normal

Any non-concatenating binder scopes.

Concatenating

Within a syntactic trait ref, there may be multiple poly trait refs that are nested (under the associated_type_bounds feature). The binders of the inner poly trait refs are extended from the outer poly trait refs and don’t increase the late bound depth. If you had T: for<'a> Foo<Bar: for<'b> Baz<'a, 'b>>, then the for<'b> scope would be Concatenating. This also used in trait refs in where clauses where we have two binders for<> T: for<> Foo (I’ve intentionally left out any lifetimes because they aren’t needed to show the two scopes). The inner for<> has a scope of Concatenating.

Trait Implementations

impl Clone for BinderScopeType

fn clone(&self) -> BinderScopeType

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BinderScopeType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for BinderScopeType

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• Normal: 0 bytes
• Concatenating: 0 bytes