fluidattacks-blends-domain 0.22.0

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::{
    query::adj_ast,
    syntax::{
        builders::binary_operation::build_binary_operation_node, SyntaxGraphArgs, SyntaxGraphError,
    },
    utilities::text_nodes::node_to_str,
    NodeId,
};
use alloc::borrow::ToOwned;

pub fn reader(
    args: &mut SyntaxGraphArgs<'_>,
    n_id: NodeId,
) -> Result<Option<NodeId>, SyntaxGraphError> {
    let graph = args.ast_graph;
    let c_ids = adj_ast(graph, n_id, Some(1), &[]);

    let (operator, left_id, right_id) = if let [left, op, right] = c_ids.as_slice() {
        (node_to_str(graph, *op), Some(*left), Some(*right))
    } else {
        ("UndefinedInfix".to_owned(), None, None)
    };

    build_binary_operation_node(args, n_id, operator, left_id, right_id).map(Some)
}