Struct Variant 

pub struct Variant { /* private fields */ }

Implementations

impl Variant

pub fn new<B: Into<Vec<u8>>>( contents: B, type_tag: BoxedVariantTypeTag, ) -> BoxedVariantResult<Self>

pub fn type_tag(&self) -> BoxedVariantTypeTag

pub fn dyn_variant(&self) -> &DynBoxedVariant

Trait Implementations

impl Clone for Variant

fn clone(&self) -> Variant

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Comparable for Variant

fn is_comparable_to(&self, rhs: &Self) -> bool

impl Datum<Value> for Variant

fn is_null(&self) -> bool

Returns true if and only if Value is to be interpreted as NULL

fn is_missing(&self) -> bool

Returns true if and only if Value is to be interpreted as MISSING

fn is_absent(&self) -> bool

Returns true if and only if Value is null or missing

fn is_present(&self) -> bool

Returns true if Value is neither null nor missing

fn is_sequence(&self) -> bool

fn is_ordered(&self) -> bool

impl<'a> DatumCategory<'a> for Variant

fn category(&'a self) -> DatumCategoryRef<'a>

fn into_category(self) -> DatumCategoryOwned

impl DatumLower<Value> for Variant

fn into_lower(self) -> DatumLowerResult<Value>

fn into_lower_boxed(self: Box<Self>) -> DatumLowerResult<Value>

fn lower(&self) -> DatumLowerResult<Cow<'_, Value>>

impl Debug for Variant

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

Formats the value using the given formatter.

impl From<Box<dyn BoxedVariant>> for Variant

fn from(variant: DynBoxedVariant) -> Self

Converts to this type from the input type.

impl<T> From<T> for Variant

where T: BoxedVariant + 'static,

fn from(variant: T) -> Self

Converts to this type from the input type.

impl From<Variant> for Value

fn from(v: Variant) -> Self

Converts to this type from the input type.

impl Hash for Variant

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 IntoIterator for Variant

type Item = Result<Variant, Box<dyn Error>>

The type of the elements being iterated over.

type IntoIter = VariantIntoIterator

Which kind of iterator are we turning this into?

fn into_iter(self) -> VariantIntoIterator

Creates an iterator from a value.

impl Ord for Variant

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Variant

fn eq(&self, other: &Self) -> 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 PartialOrd for Variant

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PrettyDoc for Variant

fn pretty_doc<'b, D, A>(&'b self, arena: &'b D) -> DocBuilder<'b, D, A>

where D: DocAllocator<'b, A>, D::Doc: Clone, A: Clone,

impl DatumValue<Value> for Variant

impl Eq for Variant