pub(crate) struct ConstraintContext<'a, 'tcx> {
    pub terms_cx: TermsContext<'a, 'tcx>,
    covariant: &'a VarianceTerm<'a>,
    contravariant: &'a VarianceTerm<'a>,
    invariant: &'a VarianceTerm<'a>,
    bivariant: &'a VarianceTerm<'a>,
    pub constraints: Vec<Constraint<'a>>,
}

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§terms_cx: TermsContext<'a, 'tcx>§covariant: &'a VarianceTerm<'a>§contravariant: &'a VarianceTerm<'a>§invariant: &'a VarianceTerm<'a>§bivariant: &'a VarianceTerm<'a>§constraints: Vec<Constraint<'a>>

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impl<'a, 'tcx> ConstraintContext<'a, 'tcx>

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fn tcx(&self) -> TyCtxt<'tcx>

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fn build_constraints_for_item(&mut self, def_id: LocalDefId)

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fn add_constraint( &mut self, current: &CurrentItem, index: u32, variance: &'a VarianceTerm<'a>, )

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fn contravariant( &mut self, variance: &'a VarianceTerm<'a>, ) -> &'a VarianceTerm<'a>

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fn invariant(&mut self, variance: &'a VarianceTerm<'a>) -> &'a VarianceTerm<'a>

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fn constant_term(&self, v: Variance) -> &'a VarianceTerm<'a>

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fn xform( &mut self, v1: &'a VarianceTerm<'a>, v2: &'a VarianceTerm<'a>, ) -> &'a VarianceTerm<'a>

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fn add_constraints_from_invariant_args( &mut self, current: &CurrentItem, args: GenericArgsRef<'tcx>, variance: &'a VarianceTerm<'a>, )

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fn add_constraints_from_ty( &mut self, current: &CurrentItem, ty: Ty<'tcx>, variance: &'a VarianceTerm<'a>, )

Adds constraints appropriate for an instance of ty appearing in a context with the generics defined in generics and ambient variance variance

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fn add_constraints_from_args( &mut self, current: &CurrentItem, def_id: DefId, args: GenericArgsRef<'tcx>, variance: &'a VarianceTerm<'a>, )

Adds constraints appropriate for a nominal type (enum, struct, object, etc) appearing in a context with ambient variance variance

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fn add_constraints_from_const( &mut self, current: &CurrentItem, c: Const<'tcx>, variance: &'a VarianceTerm<'a>, )

Adds constraints appropriate for a const expression val in a context with ambient variance variance

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fn add_constraints_from_sig( &mut self, current: &CurrentItem, sig: PolyFnSig<'tcx>, variance: &'a VarianceTerm<'a>, )

Adds constraints appropriate for a function with signature sig appearing in a context with ambient variance variance

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fn add_constraints_from_region( &mut self, current: &CurrentItem, region: Region<'tcx>, variance: &'a VarianceTerm<'a>, )

Adds constraints appropriate for a region appearing in a context with ambient variance variance

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fn add_constraints_from_mt( &mut self, current: &CurrentItem, mt: &TypeAndMut<'tcx>, variance: &'a VarianceTerm<'a>, )

Adds constraints appropriate for a mutability-type pair appearing in a context with ambient variance variance

Auto Trait Implementations§

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impl<'a, 'tcx> Freeze for ConstraintContext<'a, 'tcx>

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impl<'a, 'tcx> !RefUnwindSafe for ConstraintContext<'a, 'tcx>

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impl<'a, 'tcx> !Send for ConstraintContext<'a, 'tcx>

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impl<'a, 'tcx> !Sync for ConstraintContext<'a, 'tcx>

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impl<'a, 'tcx> Unpin for ConstraintContext<'a, 'tcx>

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impl<'a, 'tcx> !UnwindSafe for ConstraintContext<'a, 'tcx>

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Size: 152 bytes