cl_ast/desugar/
path_absoluter.rs

1use crate::{ast::*, ast_visitor::Fold};
2
3/// Converts relative paths into absolute paths
4pub struct NormalizePaths {
5    path: Path,
6}
7
8impl NormalizePaths {
9    pub fn new() -> Self {
10        Self { path: Path { absolute: true, parts: vec![] } }
11    }
12    /// Normalizes paths as if they came from within the provided paths
13    pub fn in_path(path: Path) -> Self {
14        Self { path }
15    }
16}
17
18impl Default for NormalizePaths {
19    fn default() -> Self {
20        Self::new()
21    }
22}
23
24impl Fold for NormalizePaths {
25    fn fold_module(&mut self, m: Module) -> Module {
26        let Module { name, file } = m;
27        self.path.push(PathPart::Ident(name));
28
29        let name = self.fold_sym(name);
30        let file = file.map(|f| self.fold_file(f));
31
32        self.path.pop();
33        Module { name, file }
34    }
35
36    fn fold_path(&mut self, p: Path) -> Path {
37        if p.absolute {
38            p
39        } else {
40            self.path.clone().concat(&p)
41        }
42    }
43
44    fn fold_use(&mut self, u: Use) -> Use {
45        let Use { absolute, mut tree } = u;
46
47        if !absolute {
48            for segment in self.path.parts.iter().rev() {
49                tree = UseTree::Path(segment.clone(), Box::new(tree))
50            }
51        }
52
53        Use { absolute: true, tree: self.fold_use_tree(tree) }
54    }
55}
cl_ast/desugar/path_absoluter.rs

cl_ast/desugar/
path_absoluter.rs
