use crate::syntax::builders::member_access::build_member_access_node;
use crate::syntax::fields::go::selector_expression;
use crate::syntax::{SyntaxGraphArgs, SyntaxGraphError};
use crate::utilities::text_nodes::node_to_str;
use crate::NodeId;
pub fn reader(
args: &mut SyntaxGraphArgs<'_>,
n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
let graph = args.ast_graph;
let member = node_to_str(
graph,
args.required_field_alt(n_id, selector_expression::FIELD)?,
);
let expression_id = args.required_field_alt(n_id, selector_expression::OPERAND)?;
let expression = node_to_str(graph, expression_id);
build_member_access_node(args, n_id, member, expression, expression_id).map(Some)
}