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Mention that globs import public symbols #31226

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bors merged 1 commit into from
Jan 28, 2016
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Mention that globs import public symbols #31226

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7 changes: 4 additions & 3 deletions src/doc/book/crates-and-modules.md
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Expand Up @@ -567,10 +567,11 @@ to it as "sayings". Similarly, the first `use` statement pulls in the
`ja_greetings` as opposed to simply `greetings`. This can help to avoid
ambiguity when importing similarly-named items from different places.
The second `use` statement uses a star glob to bring in _all_ symbols from the
`sayings::japanese::farewells` module. As you can see we can later refer to
The second `use` statement uses a star glob to bring in all public symbols from
the `sayings::japanese::farewells` module. As you can see we can later refer to
the Japanese `goodbye` function with no module qualifiers. This kind of glob
should be used sparingly.
should be used sparingly. It’s worth noting that it only imports the public
symbols, even if the code doing the globbing is in the same module.
The third `use` statement bears more explanation. It's using "brace expansion"
globbing to compress three `use` statements into one (this sort of syntax
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