Enum rustc_infer::infer::error_reporting::need_type_info::UseDiagnostic

enum UseDiagnostic<'tcx> {
    TryConversion {
        pre_ty: Ty<'tcx>,
        post_ty: Ty<'tcx>,
        span: Span,
    },
}

An observation about the use site of a type to be emitted as an additional note in an inference failure error.

Variants

TryConversion

Fields

pre_ty: Ty<'tcx>

post_ty: Ty<'tcx>

span: Span

Records the types inferred before and after From::from is called on the error value within the desugaring of the ? operator.

Implementations

impl UseDiagnostic<'_>

fn descr(&self) -> &'static str

Return a descriptor of the value at the use site

fn type_descr(&self) -> &'static str

Return a descriptor of the type at the use site

fn applies_to(&self, span: Span) -> bool

fn attach_note(&self, err: &mut DiagnosticBuilder<'_>)

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: 24 bytes