sway_ast/item/
item_use.rs

1use crate::priv_prelude::*;
2
3#[derive(Clone, Debug, Serialize)]
4pub struct ItemUse {
5    pub visibility: Option<PubToken>,
6    pub use_token: UseToken,
7    pub root_import: Option<DoubleColonToken>,
8    pub tree: UseTree,
9    pub semicolon_token: SemicolonToken,
10}
11
12impl Spanned for ItemUse {
13    fn span(&self) -> Span {
14        let start = match &self.visibility {
15            Some(pub_token) => pub_token.span(),
16            None => self.use_token.span(),
17        };
18        let end = self.semicolon_token.span();
19        Span::join(start, &end)
20    }
21}
22
23#[derive(Clone, Debug, Serialize)]
24pub enum UseTree {
25    Group {
26        imports: Braces<Punctuated<UseTree, CommaToken>>,
27    },
28    Name {
29        name: Ident,
30    },
31    Rename {
32        name: Ident,
33        as_token: AsToken,
34        alias: Ident,
35    },
36    Glob {
37        star_token: StarToken,
38    },
39    Path {
40        prefix: Ident,
41        double_colon_token: DoubleColonToken,
42        suffix: Box<UseTree>,
43    },
44    // to handle parsing recovery, e.g. foo::
45    Error {
46        spans: Box<[Span]>,
47    },
48}
49
50impl Spanned for UseTree {
51    fn span(&self) -> Span {
52        match self {
53            UseTree::Group { imports } => imports.span(),
54            UseTree::Name { name } => name.span(),
55            UseTree::Rename { name, alias, .. } => Span::join(name.span(), &alias.span()),
56            UseTree::Glob { star_token } => star_token.span(),
57            UseTree::Path { prefix, suffix, .. } => Span::join(prefix.span(), &suffix.span()),
58            UseTree::Error { spans } => Span::join_all(spans.to_vec().clone()),
59        }
60    }
61}
sway_ast/item/item_use.rs

sway_ast/item/
item_use.rs
