Function evaluate_global_variable

crates/gitql-engine/src/engine_evaluator.rs:257–269

(
    env: &mut Environment,
    expr: &GlobalVariableExpr,
)

}

fn evaluate_global_variable(
    env: &mut Environment,
    expr: &GlobalVariableExpr,
) -> Result<Box<dyn Value>, String> {
    let name = &expr.name;
    if env.globals.contains_key(name) {
        return Ok(env.globals[name].clone());
    }

    Err(format!(
        "The value of `{name}` may be not exists or calculated yet",
    ))
}

fn evaluate_number(expr: &NumberExpr) -> Result<Box<dyn Value>, String> {
    Ok(match expr.value {