oak_matlab/builder/
mod.rs

1use crate::{ast::*, language::MatlabLanguage, parser::MatlabParser};
2use oak_core::{Builder, BuilderCache, GreenNode, OakDiagnostics, Source, SourceText, TextEdit};
3
4#[derive(Clone)]
5pub struct MatlabBuilder<'config> {
6    config: &'config MatlabLanguage,
7}
8
9impl<'config> MatlabBuilder<'config> {
10    pub fn new(config: &'config MatlabLanguage) -> Self {
11        Self { config }
12    }
13
14    pub fn build_root(&self, green_tree: &GreenNode<MatlabLanguage>, source: &SourceText) -> Result<MatlabRoot, oak_core::OakError> {
15        let red_root = oak_core::tree::RedNode::new(green_tree, 0);
16        let mut items = Vec::new();
17        for child in red_root.children() {
18            if let oak_core::tree::RedTree::Node(node) = child {
19                if let Some(item) = self.build_item(&node, source) {
20                    items.push(item);
21                }
22            }
23        }
24        Ok(MatlabRoot { items })
25    }
26
27    pub fn build_item(&self, node: &oak_core::RedNode<MatlabLanguage>, source: &SourceText) -> Option<Item> {
28        use crate::kind::MatlabSyntaxKind::*;
29        let kind = node.green.kind;
30
31        match kind {
32            FunctionDef => {
33                let mut name = "anonymous".to_string();
34                for child in node.children() {
35                    if let oak_core::RedTree::Node(n) = child {
36                        if n.green.kind == Identifier {
37                            name = source.get_text_in(n.span()).to_string();
38                            break;
39                        }
40                    }
41                }
42                Some(Item::Function(crate::ast::Function { name, inputs: Vec::new(), outputs: Vec::new(), body: Vec::new(), span: node.span() }))
43            }
44            ClassDef => {
45                let mut name = "Unknown".to_string();
46                for child in node.children() {
47                    if let oak_core::RedTree::Node(n) = child {
48                        if n.green.kind == Identifier {
49                            name = source.get_text_in(n.span()).to_string();
50                            break;
51                        }
52                    }
53                }
54                Some(Item::Class(crate::ast::Class { name, superclasses: Vec::new(), properties: Vec::new(), methods: Vec::new(), span: node.span() }))
55            }
56            Expression | Block | Statement => Some(Item::Statement(crate::ast::Statement::Expression { value: source.get_text_in(node.span()).to_string(), span: node.span() })),
57            _ => None,
58        }
59    }
60}
61
62impl<'config> Builder<MatlabLanguage> for MatlabBuilder<'config> {
63    fn build<'a, S: Source + ?Sized>(&self, source: &S, edits: &[TextEdit], _cache: &'a mut impl BuilderCache<MatlabLanguage>) -> oak_core::builder::BuildOutput<MatlabLanguage> {
64        let parser = MatlabParser::new(self.config);
65        let lexer = crate::lexer::MatlabLexer::new(&self.config);
66        let mut cache = oak_core::parser::session::ParseSession::<MatlabLanguage>::default();
67        let parse_result = oak_core::parser::parse(&parser, &lexer, source, edits, &mut cache);
68
69        match parse_result.result {
70            Ok(green_tree) => {
71                let source_text = SourceText::new(source.get_text_in((0..source.length()).into()).into_owned());
72                OakDiagnostics { result: self.build_root(&green_tree, &source_text), diagnostics: parse_result.diagnostics }
73            }
74            Err(parse_error) => OakDiagnostics { result: Err(parse_error), diagnostics: parse_result.diagnostics },
75        }
76    }
77}
oak_matlab/builder/mod.rs

oak_matlab/builder/
mod.rs
