blob: a595b9324de4ffe3095abc8a6a2c6aa3343df285 (
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
use std::sync::Arc;
use {
SyntaxNode, SyntaxRoot, TreeRoot,
SyntaxKind::*,
};
#[derive(Debug)]
pub struct File<R: TreeRoot = Arc<SyntaxRoot>> {
syntax: SyntaxNode<R>,
}
#[derive(Debug)]
pub struct Function<R: TreeRoot = Arc<SyntaxRoot>> {
syntax: SyntaxNode<R>,
}
#[derive(Debug)]
pub struct Name<R: TreeRoot = Arc<SyntaxRoot>> {
syntax: SyntaxNode<R>,
}
impl File<Arc<SyntaxRoot>> {
pub fn parse(text: &str) -> Self {
File {
syntax: ::parse(text),
}
}
}
impl<R: TreeRoot> File<R> {
pub fn functions<'a>(&'a self) -> impl Iterator<Item = Function<R>> + 'a {
self.syntax
.children()
.filter(|node| node.kind() == FN_ITEM)
.map(|node| Function { syntax: node })
}
}
impl<R: TreeRoot> Function<R> {
pub fn syntax(&self) -> SyntaxNode<R> {
self.syntax.clone()
}
pub fn name(&self) -> Option<Name<R>> {
self.syntax
.children()
.filter(|node| node.kind() == NAME)
.map(|node| Name { syntax: node })
.next()
}
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()
}
}
impl<R: TreeRoot> File<R> {
pub fn syntax(&self) -> SyntaxNode<R> {
self.syntax.clone()
}
}
|
