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manual: update the note about reserved attributes

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Corey Richardson 2014-03-29 23:50:05 -04:00
parent 2a2d0dce87
commit a410833a7f
1 changed files with 5 additions and 6 deletions
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11
src/doc/rust.md
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@ -1722,13 +1722,12 @@ mod bar {
pub type int8_t = i8;
~~~~
> **Note:** In future versions of Rust, user-provided extensions to the compiler
> will be able to interpret attributes. When this facility is provided, the
> compiler will distinguish between language-reserved and user-available
> attributes.
> **Note:** At some point in the future, the compiler will distinguish between
> language-reserved and user-available attributes. Until then, there is
> effectively no difference between an attribute handled by a loadable syntax
> extension and the compiler.
At present, only the Rust compiler interprets attributes, so all attribute names
are effectively reserved. Some significant attributes include:
Some significant attributes include:
* The `doc` attribute, for documenting code in-place.
* The `cfg` attribute, for conditional-compilation by build-configuration (see