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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
//! FIXME: write short doc here
use stdx::format_to;
use syntax::ast::{self, AstNode, NameOwner, VisibilityOwner};
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::SourceFile {
fn short_label(&self) -> Option<String> {
None
}
}
impl ShortLabel for ast::BlockExpr {
fn short_label(&self) -> Option<String> {
None
}
}
impl ShortLabel for ast::TypeAlias {
fn short_label(&self) -> Option<String> {
let mut buf = short_label_from_node(self, "type ")?;
if let Some(type_ref) = self.ty() {
format_to!(buf, " = {}", type_ref.syntax());
}
Some(buf)
}
}
impl ShortLabel for ast::Const {
fn short_label(&self) -> Option<String> {
let mut new_buf = short_label_from_ty(self, self.ty(), "const ")?;
if let Some(expr) = self.body() {
format_to!(new_buf, " = {}", expr.syntax());
}
Some(new_buf)
}
}
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())
}
}
impl ShortLabel for ast::ConstParam {
fn short_label(&self) -> Option<String> {
let mut buf = "const ".to_owned();
buf.push_str(self.name()?.text());
if let Some(type_ref) = self.ty() {
format_to!(buf, ": {}", type_ref.syntax());
}
Some(buf)
}
}
fn short_label_from_ty<T>(node: &T, ty: Option<ast::Type>, 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());
Some(buf)
}
|
