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use crate::nodes::InnerNode;
use crate::nodes::InspectVec;
use crate::source::Range;
use crate::StringValue;
/// Represents a plain symbol literal (i.e. `:foo`)
///
/// Note that `:` in `{ foo: bar }` belongs to a `pair` node.
#[derive(Debug, Clone, PartialEq)]
pub struct Sym {
/// Value of the symbol literal
///
/// Note that it's a `StringValue`, not a `String`.
/// The reason is that you can get UTF-8 incompatible strings
/// from a valid UTF-8 source using escape sequences like `"\xFF"`
///
/// These "\", "x", "F", "F" chars are valid separately, but together
/// they construct a char with code = 255 that is invalid for UTF-8.
///
/// You can use `to_string_lossy` or `to_string` methods to get a raw symbol value.
pub name: StringValue,
/// Location of the symbol begin
///
/// ```text
/// :foo
/// ~
/// ```
///
/// `None` if symbol is a label (`{ foo: 1 }`) or a part of the symbols array (`%i[foo bar baz]`)
pub begin_l: Option<Range>,
/// Location of the symbol end
///
/// ```text
/// { 'foo': 1 }
/// ~
/// ```
///
/// `None` if symbol is **not** a string label (`:foo`) or a part of the symbols array (`%i[foo bar baz]`)
pub end_l: Option<Range>,
/// Location of the full expression
///
/// ```text
/// :foo
/// ~~~~
///
/// { foo: 1 }
/// ~~~~
///
/// %i[foo]
/// ~~~
/// ```
pub expression_l: Range,
}
impl InnerNode for Sym {
fn expression(&self) -> &Range {
&self.expression_l
}
fn inspected_children(&self, indent: usize) -> Vec<String> {
let mut result = InspectVec::new(indent);
result.push_string_value(&self.name);
result.strings()
}
fn str_type(&self) -> &'static str {
"sym"
}
fn print_with_locs(&self) {
println!("{}", self.inspect(0));
self.expression_l.print("expression");
if let Some(range) = &self.end_l {
range.print("end");
}
if let Some(range) = &self.begin_l {
range.print("begin");
}
}
}