fluidattacks-blends-domain 0.2.0

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

use crate::query::{match_ast_d, match_ast_group_d};
use crate::syntax::builders::import_global::build_import_global_node;
use crate::syntax::fields::c_sharp::using_directive;
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 alias_n_id = args.optional_field_alt(n_id, using_directive::NAME);
    let graph = args.ast_graph;

    let target_n_id = match_ast_d(graph, n_id, "qualified_name", Some(1)).or_else(|| {
        match_ast_group_d(graph, n_id, "identifier", Some(1))
            .into_iter()
            .find(|&id| Some(id) != alias_n_id)
    });

    let expression =
        target_n_id.map_or_else(|| node_to_str(graph, n_id), |id| node_to_str(graph, id));
    let alias = alias_n_id.map(|id| node_to_str(graph, id));

    build_import_global_node(args, n_id, expression, &[], alias).map(Some)
}