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document missing attributes in the reference

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Fixes #24406
This commit is contained in:
Steve Klabnik 2015-04-16 13:05:42 -04:00
parent 3908bae77b
commit 00a8d65ef3
1 changed files with 11 additions and 1 deletions
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src/doc/reference.md
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@ -2177,6 +2177,14 @@ The following configurations must be defined by the implementation:
* `unix`. See `target_family`.
* `windows`. See `target_family`.
You can also set another attribute based on a `cfg` variable with `cfg_attr`:
```rust,ignore
#[cfg_attr(a, b)]
```
Will be the same as `#[b]` if `a` is set by `cfg`, and nothing otherwise.
### Lint check attributes
A lint check names a potentially undesirable coding pattern, such as
@ -2444,7 +2452,9 @@ The currently implemented features of the reference compiler are:
* `simd_ffi` - Allows use of SIMD vectors in signatures for foreign functions.
The SIMD interface is subject to change.
* `staged_api` - Allows usage of stability markers and `#![staged_api]` in a crate
* `staged_api` - Allows usage of stability markers and `#![staged_api]` in a
crate. Stability markers are also attributes: `#[stable]`,
`#[unstable]`, and `#[deprecated]` are the three levels.
* `static_assert` - The `#[static_assert]` functionality is experimental and
unstable. The attribute can be attached to a `static` of