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error[E0539]: malformed `cfg` attribute input
--> $DIR/cfg-attr-syntax-validation.rs:1:1
|
LL | #[cfg]
| ^^^^^^
| |
| expected this to be a list
| help: must be of the form: `#[cfg(predicate)]`
error[E0539]: malformed `cfg` attribute input
--> $DIR/cfg-attr-syntax-validation.rs:6:1
|
LL | #[cfg = 10]
| ^^^^^^^^^^^
| |
| expected this to be a list
| help: must be of the form: `#[cfg(predicate)]`
error[E0805]: malformed `cfg` attribute input
--> $DIR/cfg-attr-syntax-validation.rs:11:1
|
LL | #[cfg()]
| ^^^^^--^
| | |
| | expected a single argument here
| help: must be of the form: `#[cfg(predicate)]`
error[E0805]: malformed `cfg` attribute input
--> $DIR/cfg-attr-syntax-validation.rs:16:1
|
LL | #[cfg(a, b)]
| ^^^^^------^
| | |
| | expected a single argument here
| help: must be of the form: `#[cfg(predicate)]`
error: `cfg` predicate key must be an identifier
--> $DIR/cfg-attr-syntax-validation.rs:21:7
|
LL | #[cfg("str")]
| ^^^^^
error: `cfg` predicate key must be an identifier
--> $DIR/cfg-attr-syntax-validation.rs:24:7
|
LL | #[cfg(a::b)]
| ^^^^
error[E0537]: invalid predicate `a`
--> $DIR/cfg-attr-syntax-validation.rs:27:7
|
LL | #[cfg(a())]
| ^^^
error[E0539]: malformed `cfg` attribute input
--> $DIR/cfg-attr-syntax-validation.rs:30:1
|
LL | #[cfg(a = 10)]
| ^^^^^^^^^^--^^
| | |
| | expected a string literal here
| help: must be of the form: `#[cfg(predicate)]`
error[E0539]: malformed `cfg` attribute input
--> $DIR/cfg-attr-syntax-validation.rs:34:1
|
LL | #[cfg(a = b"hi")]
| ^^^^^^^^^^-^^^^^^
| |
| help: consider removing the prefix
|
= note: expected a normal string literal, not a byte string literal
error: expected unsuffixed literal, found `expr` metavariable
--> $DIR/cfg-attr-syntax-validation.rs:40:25
|
LL | #[cfg(feature = $expr)]
| ^^^^^
...
LL | generate_s10!(concat!("nonexistent"));
| ------------------------------------- in this macro invocation
|
= note: this error originates in the macro `generate_s10` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 10 previous errors
Some errors have detailed explanations: E0537, E0539, E0805.
For more information about an error, try `rustc --explain E0537`.
|