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Update macros.md

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Tang Chenglong 2016-03-27 17:59:33 +08:00
parent bbba872dde
commit 708c5d09d7
1 changed files with 2 additions and 2 deletions
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src/doc/book/macros.md
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@ -470,7 +470,7 @@ which syntactic form it matches.
* `ty`: a type. Examples: `i32`; `Vec<(char, String)>`; `&T`.
* `pat`: a pattern. Examples: `Some(t)`; `(17, 'a')`; `_`.
* `stmt`: a single statement. Example: `let x = 3`.
* `block`: a brace-delimited sequence of statements and optional an expression. Example:
* `block`: a brace-delimited sequence of statements and optionally an expression. Example:
`{ log(error, "hi"); return 12; }`.
* `item`: an [item][item]. Examples: `fn foo() { }`; `struct Bar;`.
* `meta`: a "meta item", as found in attributes. Example: `cfg(target_os = "windows")`.
@ -509,7 +509,7 @@ A macro defined within the body of a single `fn`, or anywhere else not at
module scope, is visible only within that item.
If a module has the `macro_use` attribute, its macros are also visible in its
parent module after its `mod` item. If the parent also has `macro_use`
parent module after the child’s `mod` item. If the parent also has `macro_use`
then the macros will be visible in the grandparent after the parent’s `mod`
item, and so forth.