tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr

error[E0539]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:1:1
   |
LL | #[cfg]
   | ^^^^^^ expected this to be a list
   |
   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
help: must be of the form
   |
LL | #[cfg(predicate)]
   |      +++++++++++

error[E0539]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:7:1
   |
LL | #[cfg = 10]
   | ^^^^^^----^
   |       |
   |       expected this to be a list
   |
   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
help: must be of the form
   |
LL - #[cfg = 10]
LL + #[cfg(predicate)]
   |

error[E0805]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:13:1
   |
LL | #[cfg()]
   | ^^^^^--^
   |      |
   |      expected an argument here
   |
   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
help: if the struct should be disabled, use `#[cfg(false)]`
   |
LL | #[cfg(false)]
   |       +++++

error[E0805]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:19:1
   |
LL | #[cfg(a, b)]
   | ^^^^^------^
   |      |
   |      expected a single argument here
   |
   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
help: if the struct should be enabled when all these predicates are, wrap them in `all`
   |
LL - #[cfg(a, b)]
LL + #[cfg(all(a, b))]
   |
help: alternately, if the struct should be enabled when any of these predicates are, wrap them in `any`
   |
LL - #[cfg(a, b)]
LL + #[cfg(any(a, b))]
   |

error[E0565]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:25:1
   |
LL | #[cfg("str")]
   | ^^^^^^-----^^
   |       |
   |       expected a valid identifier here
   |
   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
help: must be of the form
   |
LL - #[cfg("str")]
LL + #[cfg(predicate)]
   |

error[E0565]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:31:1
   |
LL | #[cfg(a::b)]
   | ^^^^^^----^^
   |       |
   |       expected a valid identifier here
   |
   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
help: must be of the form
   |
LL - #[cfg(a::b)]
LL + #[cfg(predicate)]
   |

error[E0537]: invalid predicate `a`
  --> $DIR/cfg-attr-syntax-validation.rs:37:7
   |
LL | #[cfg(a())]
   |       ^^^

error[E0539]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:40:1
   |
LL | #[cfg(a = 10)]
   | ^^^^^^^^^^--^^
   |           |
   |           expected a string literal here
   |
   = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
help: must be of the form
   |
LL - #[cfg(a = 10)]
LL + #[cfg(predicate)]
   |

error[E0539]: malformed `cfg` attribute input
  --> $DIR/cfg-attr-syntax-validation.rs:45:1
   |
LL | #[cfg(a = b"hi")]
   | ^^^^^^^^^^-^^^^^^
   |           |
   |           help: consider removing the prefix
   |
   = note: expected a normal string literal, not a byte string literal

error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `expr` metavariable
  --> $DIR/cfg-attr-syntax-validation.rs:51:25
   |
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, E0565, E0805.
For more information about an error, try `rustc --explain E0537`.