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#[cfg]
//~^ ERROR malformed `cfg` attribute
//~| NOTE expected this to be a list
struct S1;
#[cfg = 10]
//~^ ERROR malformed `cfg` attribute
//~| NOTE expected this to be a list
struct S2;
#[cfg()]
//~^ ERROR malformed `cfg` attribute
//~| NOTE expected a single argument here
struct S3;
#[cfg(a, b)]
//~^ ERROR malformed `cfg` attribute
//~| NOTE expected a single argument here
struct S4;
#[cfg("str")] //~ ERROR `cfg` predicate key must be an identifier
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 malformed `cfg` attribute input
//~^ NOTE expected a string literal here
struct S8;
#[cfg(a = b"hi")] //~ ERROR malformed `cfg` attribute input
//~^ NOTE expected a normal string literal, not a byte string literal
struct S9;
macro_rules! generate_s10 {
($expr: expr) => {
#[cfg(feature = $expr)]
//~^ ERROR expected unsuffixed literal, found `expr` metavariable
struct S10;
}
}
generate_s10!(concat!("nonexistent"));
//~^ NOTE in this expansion of generate_s10!
fn main() {}
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