Struct ScalarCow

pub struct ScalarCow<'s>(/* private fields */);

A Liquid scalar value

Implementations

impl<'s> ScalarCow<'s>

pub fn new<T: Into<Self>>(value: T) -> Self

Convert a value into a ScalarCow.

pub fn into_owned(self) -> Scalar

Create an owned version of the value.

pub fn as_ref<'r: 's>(&'r self) -> ScalarCow<'r>

Create a reference to the value.

pub fn as_view<'r: 's>(&'r self) -> &'s dyn ValueView

Create a reference to the value.

pub fn into_string(self) -> KString

Convert to a string.

pub fn to_integer(&self) -> Option<i64>

Interpret as an integer, if possible

pub fn to_float(&self) -> Option<f64>

Interpret as a float, if possible

pub fn to_bool(&self) -> Option<bool>

Interpret as a bool, if possible

pub fn to_date_time(&self) -> Option<DateTime>

Interpret as a date time, if possible

pub fn to_date(&self) -> Option<Date>

Interpret as a date time, if possible

pub fn into_cow_str(self) -> Cow<'s, str>

Interpret as a Cow str, borrowing if possible

Trait Implementations

impl<'s> Clone for ScalarCow<'s>

fn clone(&self) -> ScalarCow<'s>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScalarCow<'_>

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

Formats the value using the given formatter.

impl<'de, 's> Deserialize<'de> for ScalarCow<'s>

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'s> Extend<ScalarCow<'s>> for Path<'s>

fn extend<T: IntoIterator<Item = ScalarCow<'s>>>(&mut self, iter: T)

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<ScalarCow<'static>> for Variable

fn extend<T: IntoIterator<Item = Scalar>>(&mut self, iter: T)

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<'s> From<&'s KStringBase<Box<str>>> for ScalarCow<'s>

fn from(s: &'s KString) -> Self

Converts to this type from the input type.

impl<'s> From<&'s KStringCowBase<'s>> for ScalarCow<'s>

fn from(s: &'s KStringCow<'s>) -> Self

Converts to this type from the input type.

impl<'s> From<&'s KStringRef<'s>> for ScalarCow<'s>

fn from(s: &'s KStringRef<'s>) -> Self

Converts to this type from the input type.

impl<'s> From<&'s String> for ScalarCow<'s>

fn from(s: &'s String) -> ScalarCow<'s>

Converts to this type from the input type.

impl<'s> From<&'s str> for ScalarCow<'s>

fn from(s: &'s str) -> Self

Converts to this type from the input type.

impl From<Date> for ScalarCow<'_>

fn from(s: Date) -> Self

Converts to this type from the input type.

impl From<DateTime> for ScalarCow<'_>

fn from(s: DateTime) -> Self

Converts to this type from the input type.

impl From<KStringBase<Box<str>>> for ScalarCow<'_>

fn from(s: KString) -> Self

Converts to this type from the input type.

impl<'s> From<KStringCowBase<'s>> for ScalarCow<'s>

fn from(s: KStringCow<'s>) -> Self

Converts to this type from the input type.

impl<'s> From<KStringRef<'s>> for ScalarCow<'s>

fn from(s: KStringRef<'s>) -> Self

Converts to this type from the input type.

impl From<ScalarCow<'static>> for Value

fn from(other: Scalar) -> Self

Converts to this type from the input type.

impl From<ScalarCow<'static>> for ValueCow<'static>

fn from(other: Scalar) -> Self

Converts to this type from the input type.

impl From<String> for ScalarCow<'_>

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<bool> for ScalarCow<'_>

fn from(s: bool) -> Self

Converts to this type from the input type.

impl<'s> From<f32> for ScalarCow<'s>

fn from(s: f32) -> Self

Converts to this type from the input type.

impl From<f64> for ScalarCow<'_>

fn from(s: f64) -> Self

Converts to this type from the input type.

impl<'s> From<i16> for ScalarCow<'s>

fn from(s: i16) -> Self

Converts to this type from the input type.

impl<'s> From<i32> for ScalarCow<'s>

fn from(s: i32) -> Self

Converts to this type from the input type.

impl From<i64> for ScalarCow<'_>

fn from(s: i64) -> Self

Converts to this type from the input type.

impl<'s> From<i8> for ScalarCow<'s>

fn from(s: i8) -> Self

Converts to this type from the input type.

impl<'s> From<u16> for ScalarCow<'s>

fn from(s: u16) -> Self

Converts to this type from the input type.

impl<'s> From<u32> for ScalarCow<'s>

fn from(s: u32) -> Self

Converts to this type from the input type.

impl<'s> From<u8> for ScalarCow<'s>

fn from(s: u8) -> Self

Converts to this type from the input type.

impl<'s> PartialEq<&'s str> for ScalarCow<'s>

fn eq(&self, other: &&str) -> 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 PartialEq<Date> for ScalarCow<'_>

fn eq(&self, other: &Date) -> 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 PartialEq<DateTime> for ScalarCow<'_>

fn eq(&self, other: &DateTime) -> 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 PartialEq<KStringBase<Box<str>>> for ScalarCow<'_>

fn eq(&self, other: &KString) -> 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<'s> PartialEq<KStringCowBase<'s>> for ScalarCow<'s>

fn eq(&self, other: &KStringCow<'s>) -> 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<'s> PartialEq<KStringRef<'s>> for ScalarCow<'s>

fn eq(&self, other: &KStringRef<'s>) -> 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 PartialEq<String> for ScalarCow<'_>

fn eq(&self, other: &String) -> 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 PartialEq<bool> for ScalarCow<'_>

fn eq(&self, other: &bool) -> 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<'s> PartialEq<f32> for ScalarCow<'s>

fn eq(&self, other: &f32) -> 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 PartialEq<f64> for ScalarCow<'_>

fn eq(&self, other: &f64) -> 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<'s> PartialEq<i16> for ScalarCow<'s>

fn eq(&self, other: &i16) -> 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<'s> PartialEq<i32> for ScalarCow<'s>

fn eq(&self, other: &i32) -> 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 PartialEq<i64> for ScalarCow<'_>

fn eq(&self, other: &i64) -> 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<'s> PartialEq<i8> for ScalarCow<'s>

fn eq(&self, other: &i8) -> 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 PartialEq<str> for ScalarCow<'_>

fn eq(&self, other: &str) -> 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<'s> PartialEq<u16> for ScalarCow<'s>

fn eq(&self, other: &u16) -> 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<'s> PartialEq<u32> for ScalarCow<'s>

fn eq(&self, other: &u32) -> 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<'s> PartialEq<u8> for ScalarCow<'s>

fn eq(&self, other: &u8) -> 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<'s> PartialEq for ScalarCow<'s>

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<Date> for ScalarCow<'_>

fn partial_cmp(&self, other: &Date) -> 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 PartialOrd<DateTime> for ScalarCow<'_>

fn partial_cmp(&self, other: &DateTime) -> 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 PartialOrd<KStringBase<Box<str>>> for ScalarCow<'_>

fn partial_cmp(&self, other: &KString) -> 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<'s> PartialOrd<KStringCowBase<'s>> for ScalarCow<'s>

fn partial_cmp(&self, other: &KStringCow<'s>) -> 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<'s> PartialOrd<KStringRef<'s>> for ScalarCow<'s>

fn partial_cmp(&self, other: &KStringRef<'s>) -> 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 PartialOrd<String> for ScalarCow<'_>

fn partial_cmp(&self, other: &String) -> 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 PartialOrd<bool> for ScalarCow<'_>

fn partial_cmp(&self, other: &bool) -> 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<'s> PartialOrd<f32> for ScalarCow<'s>

fn partial_cmp(&self, other: &f32) -> 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 PartialOrd<f64> for ScalarCow<'_>

fn partial_cmp(&self, other: &f64) -> 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<'s> PartialOrd<i16> for ScalarCow<'s>

fn partial_cmp(&self, other: &i16) -> 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<'s> PartialOrd<i32> for ScalarCow<'s>

fn partial_cmp(&self, other: &i32) -> 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 PartialOrd<i64> for ScalarCow<'_>

fn partial_cmp(&self, other: &i64) -> 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<'s> PartialOrd<i8> for ScalarCow<'s>

fn partial_cmp(&self, other: &i8) -> 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 PartialOrd<str> for ScalarCow<'_>

fn partial_cmp(&self, other: &str) -> 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<'s> PartialOrd<u16> for ScalarCow<'s>

fn partial_cmp(&self, other: &u16) -> 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<'s> PartialOrd<u32> for ScalarCow<'s>

fn partial_cmp(&self, other: &u32) -> 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<'s> PartialOrd<u8> for ScalarCow<'s>

fn partial_cmp(&self, other: &u8) -> 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<'s> PartialOrd for ScalarCow<'s>

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<'s> Serialize for ScalarCow<'s>

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ValueView for ScalarCow<'_>

fn as_debug(&self) -> &dyn Debug

Get a Debug representation

fn render(&self) -> DisplayCow<'_>

A Display for a BoxedValue rendered for the user.

fn source(&self) -> DisplayCow<'_>

A Display for a Value as source code.

fn type_name(&self) -> &'static str

Report the data type (generally for error reporting).

fn query_state(&self, state: State) -> bool

Query the value’s state

fn to_kstr(&self) -> KStringCow<'_>

Interpret as a string.

fn to_value(&self) -> Value

Convert to an owned type.

fn as_scalar(&self) -> Option<ScalarCow<'_>>

Extracts the scalar value if it is a scalar.

fn is_scalar(&self) -> bool

Tests whether this value is a scalar

fn as_array(&self) -> Option<&dyn ArrayView>

Extracts the array value if it is an array.

fn is_array(&self) -> bool

Tests whether this value is an array

fn as_object(&self) -> Option<&dyn ObjectView>

Extracts the object value if it is a object.

fn is_object(&self) -> bool

Tests whether this value is an object

fn as_state(&self) -> Option<State>

Extracts the state if it is one

fn is_state(&self) -> bool

Tests whether this value is state

fn is_nil(&self) -> bool

Tests whether this value is nil

impl Eq for ScalarCow<'_>