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Now that feature flags are only on nightly, it's good to split this stuff out.
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* "let met text" was previously of &String type. Now it is of &str type.
* Update the slicing syntax. Both &text[] and text.slice_from() evaluate
to a &str.
* We were passing a u32 to expr_usize. Call expr_u32 instead.
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MacEager is a MacResult implementation for the common case where you've already
built each form of AST that you might return.
Fixes #17637. Based on #18814.
This is a [breaking-change] for syntax extensions:
* MacExpr::new becomes MacEager::expr.
* MacPat::new becomes MacEager::pat.
* MacItems::new becomes MacEager::items. It takes a SmallVector directly,
not an iterator.
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Fixes #22424.
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Fixes #22202.
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#[plugin] #[no_link] extern crate bleh;
becomes a crate attribute
#![plugin(bleh)]
The feature gate is still required.
It's almost never correct to link a plugin into the resulting library /
executable, because it will bring all of libsyntax and librustc with it.
However if you really want this behavior, you can get it with a separate
`extern crate` item in addition to the `plugin` attribute.
Fixes #21043.
Fixes #20769.
[breaking-change]
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Use deref coercions instead.
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Fix all usage of int/uint/i/u in the book.
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This commit is an attempt to standardize the use of punctuation and
formatting in "The Rust Programming Language" as discussed in #19823.
- Convert bold text to italicized textcwhen referring to terminology.
- Convert single-quoted text to italicized or double-quoted text,
depending on context.
- Use double quotes only in the case of scare quotes or quotations.
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