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oak_scss/builder/
mod.rs

1use crate::{ast::ScssRoot, language::ScssLanguage};
2use oak_core::{Builder, BuilderCache, Lexer, OakDiagnostics, Parser, TextEdit, builder::BuildOutput, source::Source};
3
4/// AST builder for SCSS language
5#[derive(Clone)]
6pub struct ScssBuilder<'config> {
7    config: &'config ScssLanguage,
8}
9
10impl<'config> ScssBuilder<'config> {
11    /// Creates a new `ScssBuilder` with the given configuration.
12    pub fn new(config: &'config ScssLanguage) -> Self {
13        Self { config }
14    }
15}
16
17impl<'config> Builder<ScssLanguage> for ScssBuilder<'config> {
18    fn build<'a, S: Source + ?Sized>(&self, source: &S, edits: &[TextEdit], _cache: &'a mut impl BuilderCache<ScssLanguage>) -> BuildOutput<ScssLanguage> {
19        let parser = crate::parser::ScssParser::new(self.config);
20        let lexer = crate::lexer::ScssLexer::new(&self.config);
21
22        let mut cache = oak_core::parser::session::ParseSession::<ScssLanguage>::default();
23        lexer.lex(source, edits, &mut cache);
24        let parse_result = parser.parse(source, edits, &mut cache);
25
26        match parse_result.result {
27            Ok(parse_tree) => {
28                let ast = self.build_ast(source, &parse_tree);
29                OakDiagnostics { result: Ok(ast), diagnostics: parse_result.diagnostics }
30            }
31            Err(e) => OakDiagnostics { result: Err(e), diagnostics: parse_result.diagnostics },
32        }
33    }
34}
35
36impl<'config> ScssBuilder<'config> {
37    /// Builds an AST from the parse tree.
38    fn build_ast<'a, S: Source + ?Sized>(&self, source: &S, _parse_tree: &oak_core::tree::GreenNode<ScssLanguage>) -> ScssRoot {
39        let children = Vec::new();
40
41        // For now, return an empty AST
42        ScssRoot { span: (0..source.length()).into(), children }
43    }
44}