oak_twig/builder/
mod.rs

1use crate::{ast::TwigRoot, language::TwigLanguage, lexer::TwigLexer, parser::TwigParser};
2use oak_core::{Builder, BuilderCache, GreenNode, OakDiagnostics, OakError, RedNode, SourceText, TextEdit, source::Source};
3
4/// Twig 语言的 AST 构建器
5#[derive(Clone)]
6pub struct TwigBuilder<'config> {
7    /// 语言配置
8    config: &'config TwigLanguage,
9}
10
11impl<'config> TwigBuilder<'config> {
12    /// 创建新的 Twig 构建器
13    pub fn new(config: &'config TwigLanguage) -> Self {
14        Self { config }
15    }
16}
17
18impl<'config> Builder<TwigLanguage> for TwigBuilder<'config> {
19    fn build<'a, S: Source + ?Sized>(&self, source: &S, edits: &[TextEdit], _cache: &'a mut impl BuilderCache<TwigLanguage>) -> oak_core::builder::BuildOutput<TwigLanguage> {
20        let parser = TwigParser::new(self.config);
21        let lexer = TwigLexer::new(&self.config);
22
23        let mut cache = oak_core::parser::session::ParseSession::<TwigLanguage>::default();
24        let parse_result = oak_core::parser::parse(&parser, &lexer, source, edits, &mut cache);
25
26        match parse_result.result {
27            Ok(green_tree) => {
28                let source_text = SourceText::new(source.get_text_in((0..source.length()).into()).into_owned());
29                match self.build_root(green_tree.clone(), &source_text) {
30                    Ok(ast_root) => OakDiagnostics { result: Ok(ast_root), diagnostics: parse_result.diagnostics },
31                    Err(build_error) => {
32                        let mut diagnostics = parse_result.diagnostics;
33                        diagnostics.push(build_error.clone());
34                        OakDiagnostics { result: Err(build_error), diagnostics }
35                    }
36                }
37            }
38            Err(parse_error) => OakDiagnostics { result: Err(parse_error), diagnostics: parse_result.diagnostics },
39        }
40    }
41}
42
43impl<'config> TwigBuilder<'config> {
44    /// 构建根节点
45    pub(crate) fn build_root(&self, green_tree: GreenNode<TwigLanguage>, _source: &SourceText) -> Result<TwigRoot, OakError> {
46        let red_root = RedNode::new(&green_tree, 0);
47        let span = red_root.span();
48
49        Ok(TwigRoot { span: span.into() })
50    }
51}
oak_twig/builder/mod.rs

oak_twig/builder/
mod.rs
