fluidattacks-blends-domain 0.17.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
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use crate::{
    query::{adj_ast, get_node_by_path, label_text},
    syntax::{
        builders::variable_declaration::build_variable_declaration_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 var_name = get_node_by_path(graph, n_id, &["property_element", "variable_name", "name"])
        .map_or_else(
            || node_to_str(graph, n_id),
            |name_n_id| label_text(graph, name_n_id).unwrap_or("").to_owned(),
        );

    let val_id = get_node_by_path(graph, n_id, &["property_element", "property_initializer"])
        .and_then(|val_p_id| adj_ast(graph, val_p_id, Some(1), &[]).get(1).copied());

    build_variable_declaration_node(args, n_id, var_name, None, val_id, None, None).map(Some)
}