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Rollup merge of #40124 - koba-e964:patch-1, r=steveklabnik

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Remove unnecessary "for"
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Corey Farwell 2017-02-28 08:33:08 -05:00 committed by GitHub
commit da703a810b
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src/doc/book/src/procedural-macros.md
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@ -128,7 +128,7 @@ pub fn hello_world(input: TokenStream) -> TokenStream {
So there is a lot going on here. We have introduced two new crates: [`syn`] and
[`quote`]. As you may have noticed, `input: TokenSteam` is immediately converted
to a `String`. This `String` is a string representation of the Rust code for which
we are deriving `HelloWorld` for. At the moment, the only thing you can do with a
we are deriving `HelloWorld`. At the moment, the only thing you can do with a
`TokenStream` is convert it to a string. A richer API will exist in the future.
So what we really need is to be able to _parse_ Rust code into something