Function flatten_and_expr

nodedb-sql/src/planner/ast_helpers.rs:23–35

Flatten a right-leaning AND expression tree into a list of conjuncts.

(expr: &ast::Expr, out: &mut Vec<ast::Expr>)

/// Flatten a right-leaning AND expression tree into a list of conjuncts.
pub fn flatten_and_expr(expr: &ast::Expr, out: &mut Vec<ast::Expr>) {
    match expr {
        ast::Expr::BinaryOp {
            left,
            op: ast::BinaryOperator::And,
            right,
        } => {
            flatten_and_expr(left, out);
            flatten_and_expr(right, out);
        }
        other => out.push(other.clone()),
    }
}

/// Reassemble conjuncts into a right-leaning AND tree. Panics if empty.
pub fn rebuild_and_expr(mut conjuncts: Vec<ast::Expr>) -> ast::Expr {