Pattern

harper_core::patterns

Trait Pattern 

Source 
pub trait Pattern: LSend {
    // Required method
    fn matches(&self, tokens: &[Token], source: &[char]) -> Option<usize>;
}

Required Methods§

Source

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

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

Returns the length of the match if successful, or None if not.

Implementors§