Struct ValueVTable

#[non_exhaustive]
#[repr(C)]
pub struct ValueVTable {

    pub type_name: TypeNameFn,
    pub marker_traits: fn() -> MarkerTraits,
    pub drop_in_place: fn() -> Option<DropInPlaceFn>,
    pub invariants: fn() -> Option<InvariantsFn>,
    pub display: fn() -> Option<DisplayFn>,
    pub debug: fn() -> Option<DebugFn>,
    pub default_in_place: fn() -> Option<DefaultInPlaceFn>,
    pub clone_into: fn() -> Option<CloneIntoFn>,
    pub partial_eq: fn() -> Option<PartialEqFn>,
    pub partial_ord: fn() -> Option<PartialOrdFn>,
    pub ord: fn() -> Option<CmpFn>,
    pub hash: fn() -> Option<HashFn>,
    pub parse: fn() -> Option<ParseFn>,
    pub try_from: fn() -> Option<TryFromFn>,
    pub try_into_inner: fn() -> Option<TryIntoInnerFn>,
    pub try_borrow_inner: fn() -> Option<TryBorrowInnerFn>,
}

VTable for common operations that can be performed on any shape

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

type_name: TypeNameFn

cf. TypeNameFn

marker_traits: fn() -> MarkerTraits

Marker traits implemented by the type

drop_in_place: fn() -> Option<DropInPlaceFn>

cf. DropInPlaceFn — if None, drops without side-effects

invariants: fn() -> Option<InvariantsFn>

cf. InvariantsFn

display: fn() -> Option<DisplayFn>

cf. DisplayFn

debug: fn() -> Option<DebugFn>

cf. DebugFn

default_in_place: fn() -> Option<DefaultInPlaceFn>

cf. DefaultInPlaceFn

clone_into: fn() -> Option<CloneIntoFn>

cf. CloneIntoFn

partial_eq: fn() -> Option<PartialEqFn>

cf. PartialEqFn for equality comparison

partial_ord: fn() -> Option<PartialOrdFn>

cf. PartialOrdFn for partial ordering comparison

ord: fn() -> Option<CmpFn>

cf. CmpFn for total ordering

hash: fn() -> Option<HashFn>

cf. HashFn

parse: fn() -> Option<ParseFn>

cf. ParseFn

try_from: fn() -> Option<TryFromFn>

cf. TryFromFn

This also acts as a “TryFromInner” — you can use it to go:

• String => Utf8PathBuf
• String => Uuid
• T => Option<T>
• T => Arc<T>
• T => NonZero<T>
• etc.

try_into_inner: fn() -> Option<TryIntoInnerFn>

cf. TryIntoInnerFn

This is used by transparent types to convert the wrapper type into its inner value. Primarily used during serialization.

try_borrow_inner: fn() -> Option<TryBorrowInnerFn>

cf. TryBorrowInnerFn

This is used by transparent types to efficiently access the inner value without copying.

Implementations

impl ValueVTable

pub fn marker_traits(&self) -> MarkerTraits

Get the marker traits implemented for the type

pub fn is_eq(&self) -> bool

Check if the type implements the Eq marker trait

pub fn is_send(&self) -> bool

Check if the type implements the Send marker trait

pub fn is_sync(&self) -> bool

Check if the type implements the Sync marker trait

pub fn is_copy(&self) -> bool

Check if the type implements the Copy marker trait

pub fn is_unpin(&self) -> bool

Check if the type implements the Unpin marker trait

pub fn is_unwind_safe(&self) -> bool

Check if the type implements the UnwindSafe marker trait

pub fn is_ref_unwind_safe(&self) -> bool

Check if the type implements the RefUnwindSafe marker trait

pub const fn builder<T>() -> ValueVTableBuilder<T>

Creates a new ValueVTableBuilder

pub const fn builder_unsized<T: ?Sized>() -> ValueVTableBuilderUnsized<T>

Creates a new ValueVTableBuilderUnsized

Trait Implementations

impl Clone for ValueVTable

fn clone(&self) -> ValueVTable

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ValueVTable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for ValueVTable

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ValueVTable

fn eq(&self, other: &ValueVTable) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ValueVTable

impl Eq for ValueVTable

impl StructuralPartialEq for ValueVTable