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use crate::nodes::InnerNode;
use crate::nodes::InspectVec;
use crate::source::Range;
use crate::Node;
/// Represents an arguments list
///
/// `Args(vec![Arg("a"), Optarg("b", Int("1"))])` in `def m(a, b = 1); end`
#[derive(Debug, Clone, PartialEq)]
pub struct Args {
    /// List of arguments
    pub args: Vec<Node>,
    /// Location of the full expression
    ///
    /// ```text
    /// def m(a, b = 1, c:, &blk); end
    ///      ~~~~~~~~~~~~~~~~~~~~
    /// ```
    pub expression_l: Range,
    /// Location of the open parenthesis
    ///
    /// ```text
    /// def m(a, b = 1, c:, &blk); end
    ///      ~
    /// ```
    ///
    /// `None` for code like `def m; end` or `def m arg; end`
    pub begin_l: Option<Range>,
    /// Location of the closing parenthesis
    ///
    /// ```text
    /// def m(a, b = 1, c:, &blk); end
    ///                         ~
    /// ```
    ///
    /// `None` for code like `def m; end` or `def m arg; end`
    pub end_l: Option<Range>,
}


impl InnerNode for Args {
    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.args);
        result.strings()
    }

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

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