cruxlines 0.1.0

Ranks symbol definitions by cross-file references using tree-sitter.
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

use std::collections::{HashMap, HashSet};
use std::path::{Path, PathBuf};

use tree_sitter::Node;

use crate::find_references::{record_definition, Location};

pub(crate) const EXTENSIONS: &[&str] = &["rs"];

pub(crate) fn language() -> tree_sitter::Language {
    tree_sitter_rust::LANGUAGE.into()
}

pub(crate) fn collect_definition(
    path: &Path,
    source: &str,
    node: Node,
    definitions: &mut HashMap<String, Vec<Location>>,
    definition_positions: &mut HashSet<(PathBuf, usize, usize)>,
) {
    match node.kind() {
        "function_item" | "struct_item" | "enum_item" | "const_item" | "static_item"
        | "type_item" | "trait_item" => {
            if is_top_level(node) {
                if let Some(name) = node.child_by_field_name("name") {
                    record_definition(path, source, name, definitions, definition_positions);
                }
            }
        }
        _ => {}
    }
}

fn is_top_level(node: Node) -> bool {
    node.parent()
        .map(|parent| parent.kind() == "source_file")
        .unwrap_or(false)
}