Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    I64(i64),
    F64(f64),
    Str(Rc<str>),
    Safe(Rc<str>),
    Array(Rc<Vec<Value>>),
    Map(Rc<BTreeMap<String, Value>>),
}

A dynamic value used during template rendering.

Supports strings, numbers, booleans, null, arrays, maps, and Safe strings that bypass auto-escaping.

Variants

Null

Bool(bool)

I64(i64)

F64(f64)

Str(Rc<str>)

A string value. Will be auto-escaped in Mode::Html.

Safe(Rc<str>)

A string that is already safe for output. Bypasses auto-escaping. Returned by {{ value | safe }}, the escape filter, and {{ super() }}.

Array(Rc<Vec<Value>>)

Map(Rc<BTreeMap<String, Value>>)

Implementations

impl Value

pub fn is_truthy(&self) -> bool

Returns true if the value is considered truthy.

Falsy values are: Null, false, 0, 0.0, empty string, empty array, empty map.

pub fn get(&self, key: &str) -> Option<Value>

Look up a key in a map value. Returns None if not a map or key missing.

pub fn get_index(&self, index: usize) -> Option<Value>

Look up an index in an array value. Returns None if not an array or index out of bounds.

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

Return the string content if this is a Str or Safe value.

pub fn fmt_to(&self, buf: &mut impl Write) -> Result

Format the value into the given buffer.

Arrays and maps render as [Array] / [Object] placeholders.

Trait Implementations

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 Debug for Value

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

Formats the value using the given formatter.

impl Display for Value

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

Formats the value using the given formatter.

impl From<&str> for Value

fn from(s: &str) -> Self

Converts to this type from the input type.

impl<T: Into<Value>> From<BTreeMap<String, T>> for Value

fn from(v: BTreeMap<String, T>) -> 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<Value> for String

fn from(v: Value) -> Self

Converts to this type from the input type.

impl<T: Into<Value>> From<Vec<T>> for Value

fn from(v: Vec<T>) -> Self

Converts to this type from the input type.

impl From<bool> for Value

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(v: f64) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(v: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(v: i64) -> Self

Converts to this type from the input type.

impl From<usize> for Value

fn from(v: usize) -> Self

Converts to this type from the input type.

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 Serialize for Value

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Value