INNER CODE UNIT · Rust

parse_expression_tree

fcoury/oxide · src/parser/mod.rs:226

fn parse_expression_tree(exp_tree: ExpressionTreeClause) -> Result<String> {
    let operator = match exp_tree.operator.as_str() {
        "$and" => "AND",
        "$or" => "OR",
        // FIXME handle $nor expression
        // #17 - https://github.com/fcoury/oxide/issues/17
        // "$nor" => "NOR", FIXME
        t => {
            return Err(eyre!(
                "parse_expression_tree operator unimplemented = {:?}",
                t
            ))
        }
    };
    let sql: Vec<String> = exp_tree
        .expressions
        .into_iter()
        .map(|exp| parse_expression(exp).unwrap())

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