Struct Meta 

pub struct Meta { /* private fields */ }

A style’s metadata: upstream’s Style.meta dict. Upstream stores it marshal-encoded; this port keeps the entries themselves, in insertion order, because marshal’s bytes (and so style equality) depend on it. Assigning an existing key replaces its value in place, as a dict does.

Implementations

impl Meta

pub fn new() -> Self

An empty map.

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

Set key (meta[key] = value).

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

The value for key.

pub fn update(&mut self, other: &Meta)

Merge other in (dict.update): its values win.

pub fn iter(&self) -> impl Iterator<Item = (&str, &MetaValue)>

The entries in insertion order.

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for Meta

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Meta

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

Formats the value using the given formatter.

impl Default for Meta

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Meta

impl<K: Into<String>> FromIterator<(K, MetaValue)> for Meta

fn from_iter<I: IntoIterator<Item = (K, MetaValue)>>(iter: I) -> Self

Creates a value from an iterator.

impl Hash for Meta

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 PartialEq for Meta

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Meta