Function usize_arg

nodedb-query/src/window/offset.rs:20–28

(spec: &WindowFuncSpec, idx: usize, default: usize)

}

fn usize_arg(spec: &WindowFuncSpec, idx: usize, default: usize) -> usize {
    spec.args
        .get(idx)
        .and_then(|e| match e {
            SqlExpr::Literal(v) => v.as_f64().map(|n| n as usize),
            _ => None,
        })
        .unwrap_or(default)
}

fn default_arg(spec: &WindowFuncSpec, idx: usize) -> serde_json::Value {
    spec.args