Function evaluate_symbol

crates/gitql-engine/src/engine_evaluator.rs:231–242

(
    expr: &SymbolExpr,
    titles: &[String],
    object: &[Box<dyn Value>],
)

}

fn evaluate_symbol(
    expr: &SymbolExpr,
    titles: &[String],
    object: &[Box<dyn Value>],
) -> Result<Box<dyn Value>, String> {
    for (index, title) in titles.iter().enumerate() {
        if expr.value.eq(title) {
            return Ok(object[index].clone());
        }
    }
    Err(format!("Invalid column name `{}`", &expr.value))
}

fn evaluate_array(
    env: &mut Environment,