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
95
96
97
98
99
100
101
|
//! FIXME: write short doc here
use ra_syntax::ast::{self, AstNode, NameOwner, VisibilityOwner};
use stdx::format_to;
pub(crate) trait ShortLabel {
fn short_label(&self) -> Option<String>;
}
impl ShortLabel for ast::Fn {
fn short_label(&self) -> Option<String> {
Some(crate::display::function_declaration(self))
}
}
impl ShortLabel for ast::Struct {
fn short_label(&self) -> Option<String> {
short_label_from_node(self, "struct ")
}
}
impl ShortLabel for ast::Union {
fn short_label(&self) -> Option<String> {
short_label_from_node(self, "union ")
}
}
impl ShortLabel for ast::Enum {
fn short_label(&self) -> Option<String> {
short_label_from_node(self, "enum ")
}
}
impl ShortLabel for ast::Trait {
fn short_label(&self) -> Option<String> {
if self.unsafe_token().is_some() {
short_label_from_node(self, "unsafe trait ")
} else {
short_label_from_node(self, "trait ")
}
}
}
impl ShortLabel for ast::Module {
fn short_label(&self) -> Option<String> {
short_label_from_node(self, "mod ")
}
}
impl ShortLabel for ast::TypeAlias {
fn short_label(&self) -> Option<String> {
short_label_from_node(self, "type ")
}
}
impl ShortLabel for ast::Const {
fn short_label(&self) -> Option<String> {
short_label_from_ty(self, self.ty(), "const ")
}
}
impl ShortLabel for ast::Static {
fn short_label(&self) -> Option<String> {
short_label_from_ty(self, self.ty(), "static ")
}
}
impl ShortLabel for ast::RecordField {
fn short_label(&self) -> Option<String> {
short_label_from_ty(self, self.ty(), "")
}
}
impl ShortLabel for ast::Variant {
fn short_label(&self) -> Option<String> {
Some(self.name()?.text().to_string())
}
}
fn short_label_from_ty<T>(node: &T, ty: Option<ast::TypeRef>, prefix: &str) -> Option<String>
where
T: NameOwner + VisibilityOwner,
{
let mut buf = short_label_from_node(node, prefix)?;
if let Some(type_ref) = ty {
format_to!(buf, ": {}", type_ref.syntax());
}
Some(buf)
}
fn short_label_from_node<T>(node: &T, label: &str) -> Option<String>
where
T: NameOwner + VisibilityOwner,
{
let mut buf = node.visibility().map(|v| format!("{} ", v.syntax())).unwrap_or_default();
buf.push_str(label);
buf.push_str(node.name()?.text().as_str());
Some(buf)
}
|
