use syntect::easy::HighlightLines;
use syntect::highlighting::{Theme};
use syntect::parsing::{SyntaxReference, SyntaxSet};

/// Common helper for benchmarking highlighting.
pub fn do_highlight(s: &str, syntax_set: &SyntaxSet, syntax: &SyntaxReference, theme: &Theme) -> usize {
    let mut h = HighlightLines::new(syntax, theme);
    let mut count = 0;
    for line in s.lines() {
        let regions = h.highlight_line(line, syntax_set).unwrap();
        count += regions.len();
    }
    count
}