[−][src]Trait partial_ref::HasPart

pub trait HasPart<SomePart: Part>: PartialRefTarget {
    unsafe fn part_ptr(
        ptr: *const Self::RawTarget
    ) -> <SomePart::PartType as PartType>::Ptr;

    unsafe fn part_ptr_mut(
        ptr: *mut Self::RawTarget
    ) -> <SomePart::PartType as PartType>::PtrMut;
}

Implemented when a reference target has a part.

This trait provides methods for unchecked access to a part of a reference target. Implementations for this are automatically created when deriving PartialRefTarget.

Required methods

unsafe fn part_ptr(
    ptr: *const Self::RawTarget
) -> <SomePart::PartType as PartType>::Ptr

Given a constant pointer to a target, produce a constant pointer to a part of it.

Safety

Implementations may construct a temporary reference to ptr, which thus must be valid.

unsafe fn part_ptr_mut(
    ptr: *mut Self::RawTarget
) -> <SomePart::PartType as PartType>::PtrMut

Given a mutable pointer to a target, produce a mutable pointer to a part of it.

Safety

Implementations may construct a temporary reference to ptr, which thus must be valid.

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Implementors

impl<Reference, Outer, OuterFieldType, Inner> HasPart<Nested<Outer, Inner>> for Reference where
    Reference: ?Sized,
    Reference: HasPart<Outer>,
    Outer: Part<PartType = Field<OuterFieldType>>,
    Inner: Part,
    OuterFieldType: ?Sized,
    OuterFieldType: HasPart<Inner>,
    OuterFieldType: PartialRefTarget<RawTarget = OuterFieldType>, [src]

A reference has a nested part if it has the outer part and the nested part is valid.

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