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use crate::nodes::InnerNode;
use crate::nodes::InspectVec;
use crate::source::Range;
use crate::Node;
/// Represents regex literal (e.g. `/foo/`)
#[derive(Debug, Clone, PartialEq)]
pub struct Regexp {
    /// A list of static and dynamic regex parts
    pub parts: Vec<Node>,
    /// Regex options.
    ///
    /// `None` if regex has no explicit flags
    pub options: Option<Node>,
    /// Location of the regex begin
    ///
    /// ```text
    /// /foo/
    /// ~
    ///
    /// %r{foo}
    /// ~~
    /// ```
    pub begin_l: Range,
    /// Location of the regex end
    ///
    /// ```text
    /// /foo/
    ///     ~
    ///
    /// %r{foo}
    ///       ~
    /// ```
    pub end_l: Range,
    /// Location of the full expression
    ///
    /// ```text
    /// /foo/mix
    /// ~~~~~~~~
    /// ```
    pub expression_l: Range,
}


impl InnerNode for Regexp {
    fn expression(&self) -> &Range {
        &self.expression_l
    }

    fn inspected_children(&self, indent: usize) -> Vec<String> {
        let mut result = InspectVec::new(indent);
        result.push_nodes(&self.parts);
        result.push_regex_options(&self.options);
        result.strings()
    }

    fn str_type(&self) -> &'static str {
        "regexp"
    }

    fn print_with_locs(&self) {
        println!("{}", self.inspect(0));
        self.expression_l.print("expression");
        self.end_l.print("end");
        self.begin_l.print("begin");
        if let Some(node) = &self.options {
            node.inner_ref().print_with_locs();
        }
        for node in self.parts.iter() {
            node.inner_ref().print_with_locs();
        }
    }
}