Trait TypeVisitableExt

pub trait TypeVisitableExt<I>: TypeVisitable<I>
where
    I: Interner,
{
    // Required methods
    fn has_type_flags(&self, flags: TypeFlags) -> bool;
    fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool;
    fn error_reported(&self) -> Result<(), <I as Interner>::ErrorGuaranteed>;

    // Provided methods
    fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool { ... }
    fn has_escaping_bound_vars(&self) -> bool { ... }
    fn has_aliases(&self) -> bool { ... }
    fn has_opaque_types(&self) -> bool { ... }
    fn has_coroutines(&self) -> bool { ... }
    fn references_error(&self) -> bool { ... }
    fn has_non_region_param(&self) -> bool { ... }
    fn has_infer_regions(&self) -> bool { ... }
    fn has_infer_types(&self) -> bool { ... }
    fn has_non_region_infer(&self) -> bool { ... }
    fn has_infer(&self) -> bool { ... }
    fn has_placeholders(&self) -> bool { ... }
    fn has_non_region_placeholders(&self) -> bool { ... }
    fn has_param(&self) -> bool { ... }
    fn has_free_regions(&self) -> bool { ... }
    fn has_erased_regions(&self) -> bool { ... }
    fn has_erasable_regions(&self) -> bool { ... }
    fn is_global(&self) -> bool { ... }
    fn has_bound_regions(&self) -> bool { ... }
    fn has_non_region_bound_vars(&self) -> bool { ... }
    fn has_bound_vars(&self) -> bool { ... }
    fn still_further_specializable(&self) -> bool { ... }
}

Required Methods

fn has_type_flags(&self, flags: TypeFlags) -> bool

fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool

Returns true if self has any late-bound regions that are either bound by binder or bound by some binder outside of binder. If binder is ty::INNERMOST, this indicates whether there are any late-bound regions that appear free.

fn error_reported(&self) -> Result<(), <I as Interner>::ErrorGuaranteed>

Provided Methods

fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool

Returns true if this type has any regions that escape binder (and hence are not bound by it).

fn has_escaping_bound_vars(&self) -> bool

Return true if this type has regions that are not a part of the type. For example, for<'a> fn(&'a i32) return false, while fn(&'a i32) would return true. The latter can occur when traversing through the former.

See [HasEscapingVarsVisitor] for more information.

fn has_aliases(&self) -> bool

fn has_opaque_types(&self) -> bool

fn has_coroutines(&self) -> bool

fn references_error(&self) -> bool

fn has_non_region_param(&self) -> bool

fn has_infer_regions(&self) -> bool

fn has_infer_types(&self) -> bool

fn has_non_region_infer(&self) -> bool

fn has_infer(&self) -> bool

fn has_placeholders(&self) -> bool

fn has_non_region_placeholders(&self) -> bool

fn has_param(&self) -> bool

fn has_free_regions(&self) -> bool

“Free” regions in this context means that it has any region that is not (a) erased or (b) late-bound.

fn has_erased_regions(&self) -> bool

fn has_erasable_regions(&self) -> bool

True if there are any un-erased free regions.

fn is_global(&self) -> bool

Indicates whether this value references only ‘global’ generic parameters that are the same regardless of what fn we are in. This is used for caching.

fn has_bound_regions(&self) -> bool

True if there are any late-bound regions

fn has_non_region_bound_vars(&self) -> bool

True if there are any late-bound non-region variables

fn has_bound_vars(&self) -> bool

True if there are any bound variables

fn still_further_specializable(&self) -> bool

Indicates whether this value still has parameters/placeholders/inference variables which could be replaced later, in a way that would change the results of impl specialization.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<I, T> TypeVisitableExt<I> for T

where I: Interner, T: TypeVisitable<I>,