TypeVisitableExt in rustc_middle::ty - Rust (original) (raw)

Trait TypeVisitableExt

pub trait TypeVisitableExt<I>: TypeVisitable<I>

where
    I: Interner,

{
Show 25 methods    // 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 { ... }
}

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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.

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

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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.

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

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True if there are any un-erased free regions.

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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.

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True if there are any late-bound regions

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

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True if there are any bound variables

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

This trait is not dyn compatible.

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