Enum ValueRef 

pub enum ValueRef<'a> {
    Null,
    Bool(bool),
    Int(i64),
    Float(f64),
    String(&'a str),
    Binary(&'a [u8]),
    Vector(VectorRef<'a>),
    Uuid(Uuid),
    List(&'a [Value]),
    Map(&'a BTreeMap<String, Value>),
}

An allocation-free borrowed view of a Value.

Scalar values are copied, while variable-width payloads retain references to their owner. Use ValueRef::to_owned_value only at an ownership boundary such as final result materialization.

Variants

Null

Bool(bool)

Int(i64)

Float(f64)

String(&'a str)

Binary(&'a [u8])

Vector(VectorRef<'a>)

Uuid(Uuid)

List(&'a [Value])

Map(&'a BTreeMap<String, Value>)

Implementations

impl<'a> ValueRef<'a>

pub const fn is_null(self) -> bool

pub const fn logical_type(self) -> Option<LogicalType>

pub const fn as_bool(self) -> Option<bool>

pub const fn as_i64(self) -> Option<i64>

pub const fn as_f64(self) -> Option<f64>

pub const fn as_str(self) -> Option<&'a str>

pub const fn as_binary(self) -> Option<&'a [u8]>

pub const fn as_uuid(self) -> Option<Uuid>

pub const fn as_list(self) -> Option<&'a [Value]>

pub const fn as_map(self) -> Option<&'a BTreeMap<String, Value>>

pub fn to_owned_value(self) -> Value

Trait Implementations

impl<'a> Clone for ValueRef<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ValueRef<'a>

impl<'a> Debug for ValueRef<'a>

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

Formats the value using the given formatter.

impl Display for ValueRef<'_>

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

Formats the value using the given formatter.

impl Eq for ValueRef<'_>

impl<'a> From<&'a Value> for ValueRef<'a>

fn from(value: &'a Value) -> Self

Converts to this type from the input type.

impl Hash for ValueRef<'_>

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 Ord for ValueRef<'_>

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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for ValueRef<'_>

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<&Value> for ValueRef<'_>

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<Value> for ValueRef<'_>

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<ValueRef<'_>> for Value

fn eq(&self, other: &ValueRef<'_>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<ValueRef<'_>> for &Value

fn eq(&self, other: &ValueRef<'_>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ValueRef<'_>

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.