Struct rustc_trait_selection::traits::util::TraitAliasExpansionInfo

pub struct TraitAliasExpansionInfo<'tcx> {
    pub path: SmallVec<[(PolyTraitRef<'tcx>, Span); 4]>,
}

Stores information about the expansion of a trait via a path of zero or more trait aliases.

Fields

path: SmallVec<[(PolyTraitRef<'tcx>, Span); 4]>

Implementations

impl<'tcx> TraitAliasExpansionInfo<'tcx>

fn new(trait_ref: PolyTraitRef<'tcx>, span: Span) -> Self

pub fn label_with_exp_info( &self, diag: &mut Diagnostic, top_label: &'static str, use_desc: &str )

Adds diagnostic labels to diag for the expansion path of a trait through all intermediate trait aliases.

pub fn trait_ref(&self) -> PolyTraitRef<'tcx>

pub fn top(&self) -> &(PolyTraitRef<'tcx>, Span)

pub fn bottom(&self) -> &(PolyTraitRef<'tcx>, Span)

fn clone_and_push(&self, trait_ref: PolyTraitRef<'tcx>, span: Span) -> Self

Trait Implementations

impl<'tcx> Clone for TraitAliasExpansionInfo<'tcx>

fn clone(&self) -> TraitAliasExpansionInfo<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for TraitAliasExpansionInfo<'tcx>

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

Formats the value using the given formatter.

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: 136 bytes