Enum Value 

pub enum Value {
    Null,
    Missing,
    Boolean(bool),
    Integer(i64),
    Real(OrderedFloat<f64>),
    Decimal(Box<Decimal>),
    String(Box<String>),
    Blob(Box<Vec<u8>>),
    DateTime(Box<DateTime>),
    List(Box<List>),
    Bag(Box<Bag>),
    Tuple(Box<Tuple>),
    Graph(Box<Graph>),
    Variant(Box<Variant>),
}

Variants

Null

Missing

Boolean(bool)

Integer(i64)

Real(OrderedFloat<f64>)

Decimal(Box<Decimal>)

String(Box<String>)

Blob(Box<Vec<u8>>)

DateTime(Box<DateTime>)

List(Box<List>)

Bag(Box<Bag>)

Tuple(Box<Tuple>)

Graph(Box<Graph>)

Variant(Box<Variant>)

Implementations

impl Value

pub fn is_tuple(&self) -> bool

pub fn is_list(&self) -> bool

pub fn is_bag(&self) -> bool

pub fn is_number(&self) -> bool

Returns true if and only if Value is an integer, real, or decimal

pub fn coerce_into_tuple(self) -> Tuple

pub fn coerce_to_tuple(&self) -> Tuple

pub fn as_datum_tuple_ref(&self) -> DatumTupleRef<'_>

pub fn as_tuple_ref(&self) -> Cow<'_, Tuple>

pub fn as_bindings(&self) -> BindingIter<'_>

pub fn into_bindings(self) -> BindingIntoIter

pub fn coerce_into_bag(self) -> Bag

pub fn as_bag_ref(&self) -> Cow<'_, Bag>

pub fn coerce_into_list(self) -> List

pub fn as_list_ref(&self) -> Cow<'_, List>

pub fn iter(&self) -> ValueIter<'_>

pub fn sequence_iter(&self) -> Option<ValueIter<'_>>

Trait Implementations

impl Add for &Value

type Output = Value

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self::Output

Performs the + operation.

impl AddAssign<&Value> for Value

fn add_assign(&mut self, rhs: &Value)

Performs the += operation.

impl BinaryAnd for Value

type Output = Value

fn and(&self, rhs: &Self) -> Self::Output

impl BinaryOr for Value

type Output = Value

fn or(&self, rhs: &Self) -> Self::Output

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Comparable for Value

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

Returns true if and only if self is comparable to rhs

impl Datum<Value> for DatumValueOwned

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_sequence(&self) -> bool

fn is_ordered(&self) -> bool

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

impl Datum<Value> for DatumValueRef<'_>

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_sequence(&self) -> bool

fn is_ordered(&self) -> bool

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

impl Datum<Value> for Value

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_sequence(&self) -> bool

fn is_ordered(&self) -> bool

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

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 Value

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

fn into_category(self) -> DatumCategoryOwned

impl DatumLower<Value> for DatumValueOwned

fn into_lower(self) -> DatumLowerResult<Value>

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

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

impl DatumLower<Value> for Value

fn into_lower(self) -> DatumLowerResult<Value>

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

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

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 Value

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

Formats the value using the given formatter.

impl Default for Value

fn default() -> Value

Returns the “default value” for a type.

impl Display for Value

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

Formats the value using the given formatter.

impl Div for &Value

type Output = Value

The resulting type after applying the / operator.

fn div(self, rhs: Self) -> Self::Output

Performs the / operation.

impl Extend<Value> for Bag

fn extend<Iter: IntoIterator<Item = Value>>(&mut self, iter: Iter)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl Extend<Value> for List

fn extend<Iter: IntoIterator<Item = Value>>(&mut self, iter: Iter)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl From<&str> for Value

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<Bag> for Value

fn from(v: Bag) -> Self

Converts to this type from the input type.

impl From<DateTime> for Value

fn from(t: DateTime) -> Self

Converts to this type from the input type.

impl From<Decimal> for Value

fn from(d: RustDecimal) -> Self

Converts to this type from the input type.

impl From<Graph> for Value

fn from(g: Graph) -> Self

Converts to this type from the input type.

impl From<List> for Value

fn from(v: List) -> Self

Converts to this type from the input type.

impl From<OrderedFloat<f64>> for Value

fn from(f: OrderedFloat<f64>) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<Tuple> for Value

fn from(v: Tuple) -> 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 From<bool> for Value

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(f: f64) -> Self

Converts to this type from the input type.

impl From<i128> for Value

fn from(n: i128) -> Self

Converts to this type from the input type.

impl From<i16> for Value

fn from(n: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(n: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(n: i64) -> Self

Converts to this type from the input type.

impl From<i8> for Value

fn from(n: i8) -> Self

Converts to this type from the input type.

impl From<u128> for Value

fn from(n: u128) -> Self

Converts to this type from the input type.

impl From<u16> for Value

fn from(n: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Value

fn from(n: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Value

fn from(n: u64) -> Self

Converts to this type from the input type.

impl From<u8> for Value

fn from(n: u8) -> Self

Converts to this type from the input type.

impl From<usize> for Value

fn from(n: usize) -> Self

Converts to this type from the input type.

impl Hash for Value

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 Value

type Item = Value

The type of the elements being iterated over.

type IntoIter = ValueIntoIterator

Which kind of iterator are we turning this into?

fn into_iter(self) -> ValueIntoIterator

Creates an iterator from a value.

impl Mul for &Value

type Output = Value

The resulting type after applying the * operator.

fn mul(self, rhs: Self) -> Self::Output

Performs the * operation.

impl Neg for &Value

type Output = Value

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl Neg for Value

type Output = Value

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl Not for &Value

type Output = Value

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl Not for Value

type Output = Value

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl NullableOrd for Value

type Output = Value

fn lt(&self, rhs: &Self) -> Self::Output

fn gt(&self, rhs: &Self) -> Self::Output

fn lteq(&self, rhs: &Self) -> Self::Output

fn gteq(&self, rhs: &Self) -> Self::Output

impl Ord for Value

Implementation of spec’s order-by less-than assuming nulls first. TODO: more tests for Ord on Value

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 OwnedSequenceView<Value> for DatumSeqOwned

fn take_val(self, k: i64) -> Option<Value>

fn take_val_boxed(self: Box<Self>, k: i64) -> Option<Value>

fn into_iter_boxed(self: Box<Self>) -> Box<dyn Iterator<Item = Value>>

impl OwnedTupleView<Value> for DatumTupleOwned

fn take_val(self, k: &BindingsName<'_>) -> Option<Value>

fn take_val_boxed(self: Box<Self>, k: &BindingsName<'_>) -> Option<Value>

fn into_iter_boxed( self: Box<Self>, ) -> Box<dyn Iterator<Item = OwnedFieldView<Value>>>

impl PartialEq for Value

fn eq(&self, other: &Value) -> 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 Value

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 Value

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<'a> RefSequenceView<'a, Value> for DatumSeqRef<'a>

fn get_val(&self, k: i64) -> Option<Cow<'a, Value>>

fn into_iter(self) -> Box<dyn Iterator<Item = Cow<'a, Value>> + 'a>

impl<'a> RefTupleView<'a, Value> for DatumTupleRef<'a>

fn get_val(&self, k: &BindingsName<'_>) -> Option<Cow<'a, Value>>

fn tuple_fields_iter( &'a self, ) -> Box<dyn Iterator<Item = RefFieldView<'a, Value>> + 'a>

impl Rem for &Value

type Output = Value

The resulting type after applying the % operator.

fn rem(self, rhs: Self) -> Self::Output

Performs the % operation.

impl Sub for &Value

type Output = Value

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self::Output

Performs the - operation.

impl UnaryPlus for Value

type Output = Value

fn positive(self) -> Self::Output

impl DatumValue<Value> for Value

impl DatumValue<Value> for Variant

impl Eq for Value

impl StructuralPartialEq for Value