Function handle_variable_reference

src/modules/variable/mod.rs:110–134

(
    meta: &mut ParserMetadata,
    tok: &Option<Token>,
    name: &str,
)

pub struct Then;

pub fn handle_variable_reference(
    meta: &mut ParserMetadata,
    tok: &Option<Token>,
    name: &str,
) -> Result<VariableDecl, Failure> {
    handle_identifier_name(meta, name, tok.clone())?;
    match meta.get_var_used(name) {
        Some(variable_unit) => {
            let mut var = variable_unit.clone();
            if let Some(narrowed) = meta.get_narrowed_type(name) {
                var.kind = narrowed.clone();
            }
            Ok(var)
        }
        None => {
            let message = format!("Variable '{name}' does not exist");
            // Find other similar variable if exists
            if let Some(comment) = handle_similar_variable(meta, name) {
                error!(meta, tok.clone(), message, comment)
            } else {
                error!(meta, tok.clone(), message)
            }
        }
    }
}

pub fn prevent_constant_mutation(
    meta: &mut ParserMetadata,