File: cfg-attr-syntax-validation.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg2-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 893,176 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (39 lines) | stat: -rw-r--r-- 986 bytes parent folder | download | duplicates (4)
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
#[cfg] //~ ERROR `cfg` is not followed by parentheses
struct S1;

#[cfg = 10] //~ ERROR `cfg` is not followed by parentheses
struct S2;

#[cfg()] //~ ERROR `cfg` predicate is not specified
struct S3;

#[cfg(a, b)] //~ ERROR multiple `cfg` predicates are specified
struct S4;

#[cfg("str")] //~ ERROR `cfg` predicate key cannot be a literal
struct S5;

#[cfg(a::b)] //~ ERROR `cfg` predicate key must be an identifier
struct S6;

#[cfg(a())] //~ ERROR invalid predicate `a`
struct S7;

#[cfg(a = 10)] //~ ERROR literal in `cfg` predicate value must be a string
struct S8;

#[cfg(a = b"hi")]  //~ ERROR literal in `cfg` predicate value must be a string
struct S9;

macro_rules! generate_s10 {
    ($expr: expr) => {
        #[cfg(feature = $expr)]
        //~^ ERROR expected unsuffixed literal, found `concat!("nonexistent")`
        //~| ERROR expected unsuffixed literal, found `concat!("nonexistent")`
        struct S10;
    }
}

generate_s10!(concat!("nonexistent"));

fn main() {}