Enum PropertyValue 

pub enum PropertyValue {
    Boolean(bool),
    Integer(i64),
    Text(String),
}

One typed property value.

Performance

Copying is O(value length) for text and O(1) otherwise.

Variants

Boolean(bool)

Boolean value.

Integer(i64)

Signed integer value.

Text(String)

UTF-8 text value.

Implementations

impl PropertyValue

pub const fn value_type(&self) -> PropertyType

Returns this value’s type tag.

Performance

This function is O(1).

pub fn as_text(&self) -> Option<&str>

Returns the text payload, or None for a non-text value.

Performance

This function is O(1).

pub const fn as_int(&self) -> Option<i64>

Returns the integer payload, or None for a non-integer value.

Performance

This function is O(1).

pub fn as_count(&self) -> Option<usize>

Returns the integer payload narrowed to usize, or None when the value is not an integer or falls outside usize range.

Performance

This function is O(1).

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

Returns the boolean payload, or None for a non-boolean value.

Performance

This function is O(1).

Trait Implementations

impl Clone for PropertyValue

fn clone(&self) -> PropertyValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PropertyValue

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PropertyValue

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PropertyValue

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

Formats the value using the given formatter.

impl Eq for PropertyValue

impl From<&str> for PropertyValue

fn from(value: &str) -> Self

Copies a string slice into an owned text value.

Performance

This function is O(value length).

impl From<String> for PropertyValue

fn from(value: String) -> Self

Takes ownership of a string as a text value.

Performance

This function is O(1).

impl From<bool> for PropertyValue

fn from(value: bool) -> Self

Wraps a boolean value.

Performance

This function is O(1).

impl From<i64> for PropertyValue

fn from(value: i64) -> Self

Wraps a signed 64-bit integer value.

Performance

This function is O(1).

impl Hash for PropertyValue

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 PropertyValue

fn cmp(&self, other: &PropertyValue) -> 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 PropertyValue

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

fn partial_cmp(&self, other: &PropertyValue) -> 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 Serialize for PropertyValue

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for PropertyValue

impl TryFrom<u64> for PropertyValue

fn try_from(value: u64) -> Result<Self, Self::Error>

Narrows an unsigned 64-bit value into a signed PropertyValue::Integer.

Errors

Returns DbError::ValueOutOfRange when the value exceeds i64::MAX.

Performance

This function is O(1).

type Error = DbError

The type returned in the event of a conversion error.

impl TryFrom<usize> for PropertyValue

fn try_from(value: usize) -> Result<Self, Self::Error>

Narrows a pointer-width unsigned value into a signed PropertyValue::Integer.

Errors

Returns DbError::ValueOutOfRange when the value exceeds i64::MAX.

Performance

This function is O(1).

type Error = DbError

The type returned in the event of a conversion error.