Struct rustc_const_eval::transform::check_consts::qualifs::CustomEq

pub struct CustomEq;

A constant that cannot be used as part of a pattern in a match expression.

Trait Implementations

impl Qualif for CustomEq

const ANALYSIS_NAME: &'static str = "flow_custom_eq"

The name of the file used to debug the dataflow analysis that computes this qualif.

fn in_qualifs(qualifs: &ConstQualifs) -> bool

Extracts the field of ConstQualifs that corresponds to this Qualif.

fn in_any_value_of_ty<'tcx>(cx: &ConstCx<'_, 'tcx>, ty: Ty<'tcx>) -> bool

Returns true if any value of the given type could possibly have this Qualif.

fn in_adt_inherently<'tcx>( cx: &ConstCx<'_, 'tcx>, def: AdtDef<'tcx>, args: GenericArgsRef<'tcx> ) -> bool

Returns true if this Qualif is inherent to the given struct or enum.

const IS_CLEARED_ON_MOVE: bool = false

Whether this Qualif is cleared when a local is moved from.

const ALLOW_PROMOTED: bool = false

Whether this Qualif might be evaluated after the promotion and can encounter a promoted.

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.

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