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use crate::nodes::InnerNode;
use crate::nodes::InspectVec;
use crate::source::Range;
use crate::Node;
/// Represents a `case` statement (for pattern matching see `CaseMatch` node)
#[derive(Debug, Clone, PartialEq)]
pub struct Case {
/// Expression given to `case`, `Int("1")` for `case 1; end`
/// `None` for code like
///
/// ```text
/// case
/// when pattern
/// end
/// ```
pub expr: Option<Node>,
/// A list of `When` nodes (each has `patterns` and `body`)
pub when_bodies: Vec<Node>,
/// Body of the `else` branch, `None` if there's no `else` branch
pub else_body: Option<Node>,
/// Location of the `case` keyword
///
/// ```text
/// case 1; end
/// ~~~~
/// ```
pub keyword_l: Range,
/// Location of the `else` keyword
///
/// ```text
/// case 1; else; end
/// ~~~~
/// ```
///
/// `None` if there's no `else` branch
pub else_l: Option<Range>,
/// Location of the `end` keyword
///
/// ```text
/// case 1; end
/// ~~~
/// ```
pub end_l: Range,
/// Location of the full expression
///
/// ```text
/// case 1; end
/// ~~~~~~~~~~~
/// ```
pub expression_l: Range,
}
impl InnerNode for Case {
fn expression(&self) -> &Range {
&self.expression_l
}
fn inspected_children(&self, indent: usize) -> Vec<String> {
let mut result = InspectVec::new(indent);
result.push_maybe_node_or_nil(&self.expr);
result.push_nodes(&self.when_bodies);
result.push_maybe_node_or_nil(&self.else_body);
result.strings()
}
fn str_type(&self) -> &'static str {
"case"
}
fn print_with_locs(&self) {
println!("{}", self.inspect(0));
self.expression_l.print("expression");
self.end_l.print("end");
if let Some(range) = &self.else_l {
range.print("else");
}
self.keyword_l.print("keyword");
if let Some(node) = &self.else_body {
node.inner_ref().print_with_locs();
}
for node in self.when_bodies.iter() {
node.inner_ref().print_with_locs();
}
if let Some(node) = &self.expr {
node.inner_ref().print_with_locs();
}
}
}