Struct PatternMap

pub struct PatternMap<T>
where
    T: LSend,
{ /* private fields */ }

A map from Pattern to arbitrary data.

When used as a Pattern in and of itself, it simply iterates through all contained patterns, returning the first match found. You should not assume this search is deterministic.

If you’d like to use this structure in a PatternLinter, you may want to provide the map as the search pattern, then use a pattern lookup once more to determine the corresponding key.

Implementations

impl<T> PatternMap<T>

where T: LSend,

pub fn insert(&mut self, pattern: impl Pattern + 'static, value: T)

pub fn lookup(&self, tokens: &[Token], source: &[char]) -> Option<&T>

Look up the corresponding value for the given map.

Trait Implementations

impl<T> Default for PatternMap<T>

where T: LSend,

fn default() -> Self

Returns the “default value” for a type.

impl<T> Pattern for PatternMap<T>

where T: LSend,

fn matches(&self, tokens: &[Token], source: &[char]) -> Option<usize>

Check if the pattern matches at the start of the given token slice.