Module reflection

Functions

• type_id Gets an identifier which is globally unique to the specified type. This function will return the same value for a type regardless of whichever crate it is invoked in.
• type_id_array_len Gets the length of the array represented by this TypeId.
• type_id_element_ty Gets the type of each element of the array or slice represented by this TypeId.
• type_id_eq Tests (at compile-time) if two crate::any::TypeId instances identify the same type. This is necessary because at const-eval time the actual discriminating data is opaque and cannot be inspected directly.
• type_id_field_representing_type Gets the FieldRepresentingType's TypeId at the given index of the type represented by this TypeId.
• type_id_fields Gets the number of fields at the given variant_index represented by this TypeId.
• type_id_function_ptr Given a TypeId that represents a function pointer returns an core::mem::type_info::FnPtr. When called on something else this returns None.
• type_id_generics Returns the list of generic args on this type. Only meaningful for Adts, closures, ... Everything else returns an empty slice.
• type_id_is_signed Returns whether the type represented by this TypeId is a signed integer.
• type_id_non_exhaustive Checks whether this type is non-exhaustive.
• type_id_points_mutably Given a TypeId that represents a pointer returns whether that pointer is mutable. When called on anything else this returns false.
• type_id_points_to Given a TypeId that represents a pointer this returns the TypeId which that pointer points to. When called on anything else this returns None.
• type_id_size_of Gets the size of the type represented by this TypeId.
• type_id_type_of Compute the type information of a concrete type. It can only be called at compile time, the backends do not implement it.
• type_id_variant_name Gets the name of the variant represented by the base TypeId and variant_idx.
• type_id_variant_non_exhaustive Returns true when the variant represented by the base TypeId and variant_idx is non exhaustive.
• type_id_variants Gets the number of variants of the type represented by this TypeId.
• type_id_vtable Check if a type represented by a TypeId implements a trait represented by a TypeId. It can only be called at compile time, the backends do not implement it. If it implements the trait the dyn metadata gets returned for vtable access.
• type_name Gets a static string slice containing the name of a type.