fluidattacks-blends-domain 0.17.1

Blends functional core: pure AST graph to syntax graph (no_std)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

use crate::{
    query::{adj_ast, get_node_by_path, label_text, match_ast_d},
    syntax::{
        builders::import_statement::{build_import_node, ImportElement},
        SyntaxGraphArgs, SyntaxGraphError,
    },
    utilities::text_nodes::node_to_str,
    NodeId,
};
use alloc::string::String;

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

    let clause = match_ast_d(graph, n_id, "namespace_use_clause", None);
    let name_n_id =
        clause.and_then(|exp_n_id| adj_ast(graph, exp_n_id, Some(1), &[]).first().copied());

    let (expression, alias) = if let (Some(exp_n_id), Some(name_id)) = (clause, name_n_id) {
        let alias = get_node_by_path(graph, exp_n_id, &["namespace_aliasing_clause", "name"])
            .and_then(|alias_n_id| label_text(graph, alias_n_id).map(String::from));
        (node_to_str(graph, name_id), alias)
    } else {
        (String::new(), None)
    };

    build_import_node(
        args,
        n_id,
        &ImportElement {
            expression: Some(expression),
            alias,
            ..ImportElement::default()
        },
    )
    .map(Some)
}