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Add macro scope details to the Macro tutorial. #9329

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nejucomo opened this issue Sep 19, 2013 · 3 comments
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Add macro scope details to the Macro tutorial. #9329

nejucomo opened this issue Sep 19, 2013 · 3 comments
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A-syntaxext Area: Syntax extensions

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@nejucomo
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The Macro Tutorial doesn't explain the scope of macro definitions, nor does it describe the #[macro_escape] mechanism.
@pnkfelix
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part of #11755

(though i'm not 100% sure that the macro_escape mechanism is properly within the scope of a tutorial, rather than a reference manual.... also I'm not sure if the macro_escape mechanism is something we want to commit to supporting long term...)

@kmcallister
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also I'm not sure if the macro_escape mechanism is something we want to commit to supporting long term

I'd recommend a rename at minimum. macro_escape vs macro_export is very confusing.

@steveklabnik
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http://doc.rust-lang.org/book/macros.html#scoping-and-macro-import/export now describes scope, as well as macro_use, the fixed up version of macro-escape.

Jarcho pushed a commit to Jarcho/rust that referenced this issue Aug 29, 2022
@bors
Auto merge of rust-lang#9329 - xphoniex:fix-rust-lang#9317, r=flip1995
8c9040c 
Skip `unnecessary_to_owned` when `t != t.to_string()`

Fixes rust-lang#9317

changelog: [`unnecessary_to_owned`]: none
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@steveklabnik @pnkfelix @kmcallister @nejucomo