Struct Dict 

pub struct Dict(/* private fields */);

A map from string keys to values.

Implementations

impl Dict

pub fn new() -> Dict

Create a new, empty dictionary.

pub fn is_empty(&self) -> bool

Whether the dictionary is empty.

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

Borrow the value at the given key.

pub fn at_mut(&mut self, key: &str) -> Result<&mut Value, HintedString>

Mutably borrow the value the given key maps to.

pub fn take(&mut self, key: &str) -> Result<Value, EcoString>

Remove the value if the dictionary contains the given key.

pub fn contains(&self, key: &str) -> bool

Whether the dictionary contains a specific key.

pub fn clear(&mut self)

Clear the dictionary.

pub fn iter(&self) -> Iter<'_, Str, Value>

Iterate over pairs of references to the contained keys and values.

pub fn finish(&self, expected: &[&str]) -> Result<(), EcoString>

Check if there is any remaining pair, and if so return an “unexpected key” error.

pub fn unexpected_keys( unexpected: Vec<&str>, hint_expected: Option<&[&str]>, ) -> EcoString

impl Dict

pub fn construct(value: ToDict) -> Dict

Converts a value into a dictionary.

pub fn len(&self) -> usize

The number of pairs in the dictionary.

pub fn at(&self, key: Str, default: Option<Value>) -> Result<Value, EcoString>

Returns the value associated with the specified key in the dictionary.

pub fn insert(&mut self, key: Str, value: Value)

Inserts a new pair into the dictionary.

pub fn remove( &mut self, key: Str, default: Option<Value>, ) -> Result<Value, EcoString>

Removes a pair from the dictionary by key and return the value.

pub fn keys(&self) -> Array

Returns the keys of the dictionary as an array in insertion order.

pub fn values(&self) -> Array

Returns the values of the dictionary as an array in insertion order.

pub fn pairs(&self) -> Array

Returns the keys and values of the dictionary as an array of pairs.

pub fn filter( self, engine: &mut Engine<'_>, context: Tracked<'_, Context<'_>>, test: Func, ) -> Result<Dict, EcoVec<SourceDiagnostic>>

Produces a new dictionary with only the pairs from the original one for which the given function returns {true}.

pub fn map( self, engine: &mut Engine<'_>, context: Tracked<'_, Context<'_>>, mapper: Func, ) -> Result<Dict, EcoVec<SourceDiagnostic>>

Produces a new dictionary where the keys are the same, but the values are transformed with the given function.

Trait Implementations

impl Add for Dict

type Output = Dict

The resulting type after applying the + operator.

fn add(self, rhs: Dict) -> <Dict as Add>::Output

Performs the + operation.

impl AddAssign for Dict

fn add_assign(&mut self, rhs: Dict)

Performs the += operation.

impl Clone for Dict

fn clone(&self) -> Dict

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Dict

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

Formats the value using the given formatter.

impl Default for Dict

fn default() -> Dict

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Dict

fn deserialize<D>( deserializer: D, ) -> Result<Dict, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Extend<(Str, Value)> for Dict

fn extend<T>(&mut self, iter: T)

where T: IntoIterator<Item = (Str, Value)>,

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<BaselinePos> for Dict

fn from(baseline: BaselinePos) -> Dict

Converts to this type from the input type.

impl From<FirstLineIndent> for Dict

fn from(indent: FirstLineIndent) -> Dict

Converts to this type from the input type.

impl From<IndexMap<Str, Value, FxBuildHasher>> for Dict

fn from(map: IndexMap<Str, Value, FxBuildHasher>) -> Dict

Converts to this type from the input type.

impl From<PagedPosition> for Dict

fn from(pos: PagedPosition) -> Dict

Converts to this type from the input type.

impl From<PixelFormat> for Dict

fn from(format: PixelFormat) -> Dict

Converts to this type from the input type.

impl FromIterator<(Str, Value)> for Dict

fn from_iter<T>(iter: T) -> Dict

where T: IntoIterator<Item = (Str, Value)>,

Creates a value from an iterator.

impl FromValue for Dict

fn from_value(value: Value) -> Result<Dict, HintedString>

Try to cast the value into an instance of Self.

impl Hash for Dict

fn hash<H>(&self, state: &mut H)

where H: Hasher,

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<'a> IntoIterator for &'a Dict

type Item = (&'a Str, &'a Value)

The type of the elements being iterated over.

type IntoIter = Iter<'a, Str, Value>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <&'a Dict as IntoIterator>::IntoIter

Creates an iterator from a value.

impl IntoIterator for Dict

type Item = (Str, Value)

The type of the elements being iterated over.

type IntoIter = IntoIter<Str, Value>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <Dict as IntoIterator>::IntoIter

Creates an iterator from a value.

impl IntoValue for Dict

fn into_value(self) -> Value

Cast this type into a value.

impl NativeScope for Dict

fn constructor() -> Option<&'static NativeFuncData>

The constructor function for the type, if any.

fn scope() -> Scope

Get the associated scope for the type.

impl NativeType for Dict

const NAME: &'static str = "dictionary"

The type’s name.

fn data() -> &'static NativeTypeData

fn ty() -> Type

Get the type for the native Rust type.

impl PartialEq for Dict

fn eq(&self, other: &Dict) -> 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 Reflect for Dict

fn input() -> CastInfo

Describe what can be cast into this value.

fn output() -> CastInfo

Describe what this value can be cast into.

fn castable(value: &Value) -> bool

Whether the given value can be converted to T.

fn error(found: &Value) -> HintedString

Produce an error message for an unacceptable value type.

impl Repr for Dict

fn repr(&self) -> EcoString

Return the debug representation of the value.

impl Serialize for Dict

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Dict