Stop saying that const functions cannot use 'extern' #1207
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I've added that. I'm a bit worried that it might get stale. Ideally I'd subscribe to the F-const_extern_fn label in the Rust repository but I don't think there's a way, unless one of the bots makes that possible? |
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Thanks! Yea, there is a bit of risk for things getting stale (it often happens). Hopefully most language changes go through an FCP which I usually monitor. I also suspect there will be little demand for other ABIs. As for subscribing to issues, I think you can do it (I can't remember if you have to be an org member or not). In the "Watch" drop-down at the top, choose "Custom", then next to the "Issues" checkbox, there should be a "Filter by labels":
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ehuss
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May 10, 2022
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May 11, 2022
Update books ## nomicon 9 commits in c7d8467ca9158da58ef295ae65dbf00a308752d9..10d40c59a581c66d8ecd29ad18d410bf97ed524d 2022-04-06 14:26:54 +0900 to 2022-05-07 10:45:07 +0900 - Introducing init/uninit before its use (rust-lang/nomicon#355) - Change will to would to discuss what don't occur (rust-lang/nomicon#361) - State that pop for length 1 is an example (rust-lang/nomicon#360) - Correct a sentence that didn't seem to be proper (rust-lang/nomicon#358) - Indicate that C reference are C reference (rust-lang/nomicon#357) - Introduce and avoid dropck (rust-lang/nomicon#353) - Rephrase improperly reduced borrows introduction (rust-lang/nomicon#352) - Two lifetime clarification (rust-lang/nomicon#350) - "UB" vs "Undefined Behavior" (rust-lang/nomicon#349) ## reference 9 commits in b5f6c2362baf932db9440fbfcb509b309237ee85..8e36971959ff238b5aa2575fbc7a2e09e1313e82 2022-04-10 19:19:51 -0700 to 2022-05-09 17:20:59 -0700 - Stop saying that const functions cannot use 'extern' (rust-lang/reference#1207) - Moved the option variant imports (rust-lang/reference#1208) - #[must_use] on traits also affects trait objects (rust-lang/reference#1203) - Don't use PathPattern in RangePattern bounds (rust-lang/reference#1204) - Inline assembly: Add kreg0 register class (rust-lang/reference#1205) - Fix crate_type attribute examples (rust-lang/reference#1201) - Say that that the default function return type is the unit type (rust-lang/reference#1199) - Clarify guarantees provided by repr(packed) (rust-lang/reference#1163) - Document the Termination trait for main() and test functions (rust-lang/reference#1194) ## book 43 commits in de0dbffc5812fd885700874e8d258dd334733ac4..d9415b7cbfcb4b24062683f429bd0ff535396362 2022-04-18 19:29:45 -0400 to 2022-05-09 09:10:44 -0400 - Update ch09-02-recoverable-errors-with-result.md - Added missing be 2 - Added missing be - Move hardcoded string into status_line to be consistent - Fix trailing space - Propagate tech review edits back to src - Change "semantics" to "mechanics"; when referring to compiler behavior, rather than syntax. - Propagate some edits to ch4 snapshot - Suggestions from tech review - Propagate edits to src - Propagate edits back to nostarch version - Clarify sentences about lock types. Fixes rust-lang/book#2937. - Edits to edits to chapter 16 - Edits from nostarch for chapter 16 - Propagate nostarch edits back to src - Add words to dictionary - Propagating edits back to the nostarch snapshot - Small wording change. Fixes rust-lang/book#3112. - Clarify the kind of manual cleanup meant here - Edits to edits to chapter 15 - Edits from nostarch - Add missing word - Improve sentence structure - fix unidiomatic new functions in chapter 15 - Propagate nostarch ch14 to src - Update a link and the -p publishing instructions - Actually, I don't think we need to show the command output here - Edits to edits to chapter 14 - Update manual regeneration instructions - Reflect the addition of the -p flag in Cargo 1.56 in chapter 14 - Change polarity and names of variables in env var section - Propagate nostarch edits back to ch 12 - Change environment variable and field name to perhaps be less confusing - Responses to nostarch edits - Merge remote-tracking branch 'origin/ch13' - Fix rust-lang/book#3002 use noplayground with common.rs - Propagate ch3 edits to src - Updating chapter 3 to use new println style - Specify loop label format. Fixes rust-lang/book#3105. - Clarify function definition must be in an accessible scope. Fixes rust-lang/book#3003 - Addressing tech review comments, propagating other changes - Comments from tech review - Chapter 3, section 2 - Add explicit type annotation to example of scalar type char. ## rust-by-example 6 commits in 44a80e8d8bfc5881c9bd69a2cb3a570776ee4181..e9f93cfcf410bc092c9107b8a41a82f144c761f2 2022-04-19 07:46:28 -0300 to 2022-05-08 18:24:06 -0300 - Add empty slice example (rust-lang/rust-by-example#1538) - Enhancement/print (rust-lang/rust-by-example#1536) - Update cast.md (rust-lang/rust-by-example#1521) - Update iter_any.md (rust-lang/rust-by-example#1522) - Update tuples.md (rust-lang/rust-by-example#1524) - fix indent in fs.md (rust-lang/rust-by-example#1535) ## rustc-dev-guide 8 commits in 043e60f..0c02acd 2022-04-20 18:57:49 +0900 to 2022-05-10 09:45:31 -0300 - Update overview.md (rust-lang/rustc-dev-guide#1351) - Update date references on parallel-rustc (rust-lang/rustc-dev-guide#1348) - mention `WithOptConstParam` (rust-lang/rustc-dev-guide#1346) - Fix format (rust-lang/rustc-dev-guide#1349) - correct type of SubstsRef (rust-lang/rustc-dev-guide#1347) - Document ErrorGuaranteed (rust-lang/rustc-dev-guide#1316) - Edit "What the compiler does to your code" (rust-lang/rustc-dev-guide#1306) - Update some date refs
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Closes #1197
I don't think there's anything to do other than remove the claim in the text that these are forbidden. The grammar already allows it.
rust-lang/rust#64926 says this is stabilised only for the "Rust" and "C" ABIs, but I think that would be better covered in documentation for particular ABIs, if/when that exists.