Function tx_node_line 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn tx_node_line(
    doc: *const TxDocument,
    node: TxNodeId,
) -> c_int

Returns the 1-based source line number where the node was parsed, or 0 if the node was not created by parsing.

Safety

doc must be a valid, non-null pointer to a TxDocument.