Struct OpaqueType 

pub struct OpaqueType {
    pub visibility: Visibility,
    pub name: Ident,
    pub generics: GenericParams,
    pub underlying: Type,
    pub span: Span,
}

Opaque type definition: opaque type UserId = i64;

Zero-cost type distinction — the underlying type is erased from the public API. Only the defining module can construct/deconstruct values of the opaque type.

Fields

visibility: Visibility

name: Ident

generics: GenericParams

underlying: Type

span: Span

Trait Implementations

impl Clone for OpaqueType

fn clone(&self) -> OpaqueType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OpaqueType

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

Formats the value using the given formatter.

impl PartialEq for OpaqueType

fn eq(&self, other: &OpaqueType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for OpaqueType