blob: 7d3cdb93db587f61c27b40eff7530f467a5d3fb9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
mod generated;
use std::sync::Arc;
use {
SyntaxNode, SyntaxRoot, TreeRoot, SyntaxError,
SyntaxKind::*,
};
pub use self::generated::*;
pub trait AstNode<R: TreeRoot>: Sized {
fn cast(syntax: SyntaxNode<R>) -> Option<Self>;
fn syntax(&self) -> &SyntaxNode<R>;
}
impl File<Arc<SyntaxRoot>> {
pub fn parse(text: &str) -> Self {
File::cast(::parse(text)).unwrap()
}
}
impl<R: TreeRoot> File<R> {
pub fn errors(&self) -> Vec<SyntaxError> {
self.syntax().root.errors.clone()
}
}
impl<R: TreeRoot> Function<R> {
pub fn has_atom_attr(&self, atom: &str) -> bool {
self.syntax()
.children()
.filter(|node| node.kind() == ATTR)
.any(|attr| {
let mut metas = attr.children().filter(|node| node.kind() == META_ITEM);
let meta = match metas.next() {
None => return false,
Some(meta) => {
if metas.next().is_some() {
return false;
}
meta
}
};
let mut children = meta.children();
match children.next() {
None => false,
Some(child) => {
if children.next().is_some() {
return false;
}
child.kind() == IDENT && child.text() == atom
}
}
})
}
}
impl<R: TreeRoot> Name<R> {
pub fn text(&self) -> String {
self.syntax().text()
}
}
|
