lib-ruby-parser 4.0.6+ruby-3.1.2

Ruby parser
Documentation 
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use crate::Diagnostic;

pub fn render_diagnostic_for_testing(d: &Diagnostic) -> String {
    format!(
        "{prefix}{highlight} ({level}) {message}",
        prefix = " ".repeat(d.loc.begin),
        highlight = "~".repeat(d.loc.size()),
        level = d.level.to_string(),
        message = d.render_message()
    )
}