Struct AttrMap 

pub struct AttrMap(pub Vec<(Cow<'static, str>, Cow<'static, str>)>);

An ordered list of HTML attribute key-value pairs.

Keys and values are stored as Cow<'static, str> to avoid allocations when attribute names and values are known at compile time (string literals).

Duplicate keys are allowed (the last one wins in most browsers, but we preserve insertion order for deterministic output and snapshot tests).

Tuple Fields

0: Vec<(Cow<'static, str>, Cow<'static, str>)>

Implementations

impl AttrMap

pub fn new() -> AttrMap

Create an empty AttrMap.

pub fn push( &mut self, key: impl Into<Cow<'static, str>>, val: impl Into<Cow<'static, str>>, )

Append a key-value pair.

pub fn extend_from<I, K, V>(&mut self, iter: I)

where I: IntoIterator<Item = (K, V)>, K: Into<Cow<'static, str>>, V: Into<Cow<'static, str>>,

Extend from any iterator of (key, value) pairs.

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

Iterate over (&str, &str) pairs.

pub fn render(&self) -> String

Render as an HTML attribute string.

Returns " key=\"value\" key2=\"value2\"" (leading space when non-empty) or "" when empty. Values are HTML-attribute-escaped.

Trait Implementations

impl Clone for AttrMap

fn clone(&self) -> AttrMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AttrMap

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

Formats the value using the given formatter.

impl Default for AttrMap

fn default() -> AttrMap

Returns the “default value” for a type.

impl<K, V> FromIterator<(K, V)> for AttrMap

where K: Into<Cow<'static, str>>, V: Into<Cow<'static, str>>,

fn from_iter<I>(iter: I) -> AttrMap

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

Creates a value from an iterator.

impl PartialEq for AttrMap

fn eq(&self, other: &AttrMap) -> 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 Eq for AttrMap

impl StructuralPartialEq for AttrMap