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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
use base_db::fixture::WithFixture;
use crate::test_db::TestDB;
fn check_diagnostics(ra_fixture: &str) {
let db: TestDB = TestDB::with_files(ra_fixture);
db.check_diagnostics();
}
fn check_no_diagnostics(ra_fixture: &str) {
let db: TestDB = TestDB::with_files(ra_fixture);
db.check_no_diagnostics();
}
#[test]
fn unresolved_import() {
check_diagnostics(
r"
use does_exist;
use does_not_exist;
//^^^^^^^^^^^^^^ unresolved import
mod does_exist {}
",
);
}
#[test]
fn unresolved_import_in_use_tree() {
// Only the relevant part of a nested `use` item should be highlighted.
check_diagnostics(
r"
use does_exist::{Exists, DoesntExist};
//^^^^^^^^^^^ unresolved import
use {does_not_exist::*, does_exist};
//^^^^^^^^^^^^^^^^^ unresolved import
use does_not_exist::{
a,
//^ unresolved import
b,
//^ unresolved import
c,
//^ unresolved import
};
mod does_exist {
pub struct Exists;
}
",
);
}
#[test]
fn unresolved_extern_crate() {
check_diagnostics(
r"
//- /main.rs crate:main deps:core
extern crate core;
extern crate doesnotexist;
//^^^^^^^^^^^^^^^^^^^^^^^^^^ unresolved extern crate
//- /lib.rs crate:core
",
);
}
#[test]
fn extern_crate_self_as() {
cov_mark::check!(extern_crate_self_as);
check_diagnostics(
r"
//- /lib.rs
extern crate doesnotexist;
//^^^^^^^^^^^^^^^^^^^^^^^^^^ unresolved extern crate
// Should not error.
extern crate self as foo;
struct Foo;
use foo::Foo as Bar;
",
);
}
#[test]
fn dedup_unresolved_import_from_unresolved_crate() {
check_diagnostics(
r"
//- /main.rs crate:main
mod a {
extern crate doesnotexist;
//^^^^^^^^^^^^^^^^^^^^^^^^^^ unresolved extern crate
// Should not error, since we already errored for the missing crate.
use doesnotexist::{self, bla, *};
use crate::doesnotexist;
//^^^^^^^^^^^^^^^^^^^ unresolved import
}
mod m {
use super::doesnotexist;
//^^^^^^^^^^^^^^^^^^^ unresolved import
}
",
);
}
#[test]
fn unresolved_module() {
check_diagnostics(
r"
//- /lib.rs
mod foo;
mod bar;
//^^^^^^^^ unresolved module
mod baz {}
//- /foo.rs
",
);
}
#[test]
fn inactive_item() {
// Additional tests in `cfg` crate. This only tests disabled cfgs.
check_diagnostics(
r#"
//- /lib.rs
#[cfg(no)] pub fn f() {}
//^^^^^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: no is disabled
#[cfg(no)] #[cfg(no2)] mod m;
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: no and no2 are disabled
#[cfg(all(not(a), b))] enum E {}
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: b is disabled
#[cfg(feature = "std")] use std;
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: feature = "std" is disabled
"#,
);
}
/// Tests that `cfg` attributes behind `cfg_attr` is handled properly.
#[test]
fn inactive_via_cfg_attr() {
cov_mark::check!(cfg_attr_active);
check_diagnostics(
r#"
//- /lib.rs
#[cfg_attr(not(never), cfg(no))] fn f() {}
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: no is disabled
#[cfg_attr(not(never), cfg(not(no)))] fn f() {}
#[cfg_attr(never, cfg(no))] fn g() {}
#[cfg_attr(not(never), inline, cfg(no))] fn h() {}
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: no is disabled
"#,
);
}
#[test]
fn unresolved_legacy_scope_macro() {
check_diagnostics(
r#"
//- /lib.rs
macro_rules! m { () => {} }
m!();
m2!();
//^^^^^^ unresolved macro call
"#,
);
}
#[test]
fn unresolved_module_scope_macro() {
check_diagnostics(
r#"
//- /lib.rs
mod mac {
#[macro_export]
macro_rules! m { () => {} }
}
self::m!();
self::m2!();
//^^^^^^^^^^^^ unresolved macro call
"#,
);
}
#[test]
fn builtin_macro_fails_expansion() {
check_diagnostics(
r#"
//- /lib.rs
#[rustc_builtin_macro]
macro_rules! include { () => {} }
include!("doesntexist");
//^^^^^^^^^^^^^^^^^^^^^^^^ failed to load file `doesntexist`
"#,
);
}
#[test]
fn include_macro_should_allow_empty_content() {
check_no_diagnostics(
r#"
//- /lib.rs
#[rustc_builtin_macro]
macro_rules! include { () => {} }
include!("bar.rs");
//- /bar.rs
// empty
"#,
);
}
#[test]
fn good_out_dir_diagnostic() {
check_diagnostics(
r#"
#[rustc_builtin_macro]
macro_rules! include { () => {} }
#[rustc_builtin_macro]
macro_rules! env { () => {} }
#[rustc_builtin_macro]
macro_rules! concat { () => {} }
include!(concat!(env!("OUT_DIR"), "/out.rs"));
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `OUT_DIR` not set, enable "load out dirs from check" to fix
"#,
);
}
|
