ll_sparql_parser/
lib.rs

1mod parser;
2mod syntax_kind;
3mod syntax_node;
4
5use js_sys::{Array, Object, Reflect};
6use syntax_node::SyntaxNode;
7use wasm_bindgen::{prelude::wasm_bindgen, JsValue};
8
9use syntax_kind::SyntaxKind;
10
11#[wasm_bindgen]
12pub fn get_parse_tree(input: &str) -> JsValue {
13    let root = SyntaxNode::new_root(parser::parse_text(input));
14    build_js_tree(&root)
15}
16
17fn build_js_tree(node: &SyntaxNode) -> JsValue {
18    let obj = Object::new();
19    Reflect::set(
20        &obj,
21        &JsValue::from_str("kind"),
22        &JsValue::from_str(&format!("{:?}", node.kind())),
23    )
24    .unwrap();
25    Reflect::set(&obj, &JsValue::from_str("type"), &JsValue::from_str("node")).unwrap();
26    let children = Array::from_iter(node.children_with_tokens().filter_map(|child| match child {
27        rowan::NodeOrToken::Node(node) => Some(build_js_tree(&node)),
28        rowan::NodeOrToken::Token(token) if token.kind() != SyntaxKind::WHITESPACE => {
29            let token_obj = Object::new();
30            Reflect::set(
31                &token_obj,
32                &JsValue::from_str("kind"),
33                &JsValue::from_str(&format!("{:?}", token.kind())),
34            )
35            .unwrap();
36            Reflect::set(
37                &token_obj,
38                &JsValue::from_str("type"),
39                &JsValue::from_str("token"),
40            )
41            .unwrap();
42            Reflect::set(
43                &token_obj,
44                &JsValue::from_str("text"),
45                &JsValue::from_str(token.text()),
46            )
47            .unwrap();
48            Some(token_obj.into())
49        }
50        _ => None,
51    }));
52    Reflect::set(&obj, &JsValue::from_str("children"), &children.into()).unwrap();
53    obj.into()
54}
ll_sparql_parser/lib.rs

ll_sparql_parser/
lib.rs
