Struct MetaKeyValue

pub struct MetaKeyValue {
    pub span: SourceSpan,
    pub name: Ident,
    pub items: BTreeMap<Ident, MetaExpr>,
}

Represents the metadata of a key-value crate::ast::Attribute, i.e. @props(key = value)

Fields

span: SourceSpan

name: Ident

The name of the key-value dictionary

items: BTreeMap<Ident, MetaExpr>

The set of key-value pairs provided as arguments to this attribute

Implementations

impl MetaKeyValue

pub fn new<K, V, I>(name: Ident, items: I) -> MetaKeyValue

where I: IntoIterator<Item = (K, V)>, K: Into<Ident>, V: Into<MetaExpr>,

pub fn with_span(self, span: SourceSpan) -> MetaKeyValue

pub fn name(&self) -> &str

Get the name of this metadata as a string

pub fn id(&self) -> Ident

Get the name of this metadata as an Ident

pub fn contains_key<Q>(&self, key: &Q) -> bool

where Ident: Borrow<Q> + Ord, Q: Ord + ?Sized,

Returns true if this metadata contains an entry for key

pub fn get<Q>(&self, key: &Q) -> Option<&MetaExpr>

where Ident: Borrow<Q> + Ord, Q: Ord + ?Sized,

Returns the value associated with key, if present in this metadata

pub fn insert(&mut self, key: impl Into<Ident>, value: impl Into<MetaExpr>)

Inserts a new key-value entry in this metadata

pub fn remove<Q>(&mut self, key: &Q) -> Option<MetaExpr>

where Ident: Borrow<Q> + Ord, Q: Ord + ?Sized,

Removes the entry associated with key, if present in this metadata, and returns it

pub fn entry(&mut self, key: Ident) -> Entry<'_, Ident, MetaExpr>

Get an entry in the key-value map of this metadata for key

pub fn iter(&self) -> impl Iterator<Item = (&Ident, &MetaExpr)>

Get an iterator over the the key-value items of this metadata

Trait Implementations

impl Clone for MetaKeyValue

fn clone(&self) -> MetaKeyValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<MetaKeyValue> for Attribute

fn from(value: MetaKeyValue) -> Attribute

Converts to this type from the input type.

impl Hash for MetaKeyValue

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 IntoIterator for MetaKeyValue

type Item = (Ident, MetaExpr)

The type of the elements being iterated over.

type IntoIter = IntoIter<Ident, MetaExpr>

Which kind of iterator are we turning this into?

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

Creates an iterator from a value.

impl Ord for MetaKeyValue

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

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

fn partial_cmp(&self, other: &MetaKeyValue) -> 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 Spanned for MetaKeyValue

fn span(&self) -> SourceSpan

impl Eq for MetaKeyValue