Enum FieldInnerTy

pub(crate) enum FieldInnerTy<'ty> {
    Option(&'ty Type),
    Vec(&'ty Type),
    Plain(&'ty Type),
}

Inner type of a field and type of wrapper.

Variants

Option(&'ty Type)

Field is wrapped in a Option<$inner>.

Vec(&'ty Type)

Field is wrapped in a Vec<$inner>.

Plain(&'ty Type)

Field isn’t wrapped in an outer type.

Implementations

impl<'ty> FieldInnerTy<'ty>

pub(crate) fn from_type(ty: &'ty Type) -> Self

Returns inner type for a field, if there is one.

• If ty is an Option<Inner>, returns FieldInnerTy::Option(Inner).
• If ty is a Vec<Inner>, returns FieldInnerTy::Vec(Inner).
• Otherwise returns FieldInnerTy::Plain(ty).

pub(crate) fn will_iterate(&self) -> bool

Returns true if FieldInnerTy::with will result in iteration for this inner type (i.e. that cloning might be required for values moved in the loop body).

pub(crate) fn inner_type(&self) -> &'ty Type

Returns the inner type.

pub(crate) fn with( &self, binding: impl ToTokens, inner: impl ToTokens, ) -> TokenStream

Surrounds inner with destructured wrapper type, exposing inner type as binding.

pub(crate) fn span(&self) -> Span

Trait Implementations

impl<'ty> Clone for FieldInnerTy<'ty>

fn clone(&self) -> FieldInnerTy<'ty>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'ty> Copy for FieldInnerTy<'ty>