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Add feature gate for rvalue-static-promotion #40441

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merged 3 commits into from
Mar 19, 2017
Merged

Add feature gate for rvalue-static-promotion #40441

merged 3 commits into from
Mar 19, 2017

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tbg
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@tbg tbg commented Mar 11, 2017

Probably needs more tests (which ones?) and there may be other things that need to be done. Also not sure whether the version that introduces the flag is really 1.15.1.

See rust-lang/rfcs#1414.

Updates #38865.

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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @frewsxcv (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

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tbg
tbg commented Mar 12, 2017
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src/test/run-pass/rvalue-static-promotion.rs
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![feature(rvalue_static_promotion)]
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Is this even run when I run ./x.py test src/test/run-pass --test-args rval?
I see test [run-pass] run-pass/rvalue-static-promotion.rs ... ok in the output but it would seem magical if it did. I guess it is set up to be magical because other tests do it the same way, but wonder where that magic is documented.

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(I believe it's not covered in src/test/COMPILER_TEST.md, though that doc does talk about "revisions" which seems like that's what you would want, but other tests I've randomly peeked into don't seem to use that, so I see no reason for the feature to be toggled when they run)

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@eddyb any pointers here?

frewsxcv
frewsxcv reviewed Mar 12, 2017
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src/doc/unstable-book/src/rvalue-static-promotion.md Outdated

The tracking issue for this feature is: [#38865]

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@frewsxcv frewsxcv Mar 12, 2017 •
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Not a deal-breaker, but it'd be great if there was a sentence and/or example here briefly describing the feature. There are some examples here in this PR

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Done.

@frewsxcv frewsxcv assigned nrc and unassigned frewsxcv Mar 13, 2017
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nrc commented Mar 13, 2017

r? @eddyb

@rust-highfive rust-highfive assigned eddyb and unassigned nrc Mar 13, 2017
eddyb
eddyb reviewed Mar 13, 2017
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src/test/compile-fail/feature-gate-rvalue_static_promotion.rs
fn main() {
let x: &'static u32 = &42; //~ error: does not live long enough
let y: &'static Option<u32> = &None; //~ error: does not live long enough
}
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This file and the other one need a newline at the end.

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Done.

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eddyb commented Mar 14, 2017

@bors r+

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bors commented Mar 14, 2017

📌 Commit 0a762aa has been approved by eddyb

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bors commented Mar 14, 2017

☔ The latest upstream changes (presumably #39921) made this pull request unmergeable. Please resolve the merge conflicts.

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tbg commented Mar 14, 2017

Rebased.

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eddyb commented Mar 14, 2017

@bors r+

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bors commented Mar 14, 2017

📌 Commit f06b049 has been approved by eddyb

frewsxcv added a commit to frewsxcv/rust that referenced this pull request Mar 18, 2017
@frewsxcv
Rollup merge of rust-lang#40441 - tschottdorf:promotable-rfc, r=eddyb
4735cf6 
Add feature gate for rvalue-static-promotion

Probably needs more tests (which ones?) and there may be other things that need to be done. Also not sure whether the version that introduces the flag is really `1.15.1`.

See rust-lang/rfcs#1414.

Updates rust-lang#38865.
@frewsxcv frewsxcv mentioned this pull request Mar 18, 2017
Closed
arielb1 pushed a commit to arielb1/rust that referenced this pull request Mar 18, 2017
Rollup merge of rust-lang#40441 - tschottdorf:promotable-rfc, r=eddyb
d050aee 
Add feature gate for rvalue-static-promotion

Probably needs more tests (which ones?) and there may be other things that need to be done. Also not sure whether the version that introduces the flag is really `1.15.1`.

See rust-lang/rfcs#1414.

Updates rust-lang#38865.
@arielb1 arielb1 mentioned this pull request Mar 18, 2017
Closed
bors added a commit that referenced this pull request Mar 18, 2017
@bors
Auto merge of #40644 - arielb1:rollup, r=arielb1
1d565ef 
Rollup of 22 pull requests

- Successful merges: #40241, #40346, #40348, #40377, #40398, #40409, #40441, #40445, #40509, #40521, #40523, #40532, #40538, #40564, #40581, #40583, #40588, #40589, #40590, #40603, #40611, #40621
- Failed merges: #40501, #40541
@arielb1 arielb1 mentioned this pull request Mar 19, 2017
Closed
arielb1 pushed a commit to arielb1/rust that referenced this pull request Mar 19, 2017
Rollup merge of rust-lang#40441 - tschottdorf:promotable-rfc, r=eddyb
17e0c8b 
Add feature gate for rvalue-static-promotion

Probably needs more tests (which ones?) and there may be other things that need to be done. Also not sure whether the version that introduces the flag is really `1.15.1`.

See rust-lang/rfcs#1414.

Updates rust-lang#38865.
frewsxcv added a commit to frewsxcv/rust that referenced this pull request Mar 19, 2017
@frewsxcv
Rollup merge of rust-lang#40441 - tschottdorf:promotable-rfc, r=eddyb
7b686ce 
Add feature gate for rvalue-static-promotion

Probably needs more tests (which ones?) and there may be other things that need to be done. Also not sure whether the version that introduces the flag is really `1.15.1`.

See rust-lang/rfcs#1414.

Updates rust-lang#38865.
@frewsxcv frewsxcv mentioned this pull request Mar 19, 2017
Merged
bors added a commit that referenced this pull request Mar 19, 2017
@bors
Auto merge of #40651 - frewsxcv:rollup, r=frewsxcv
38c53f3 
Rollup of 13 pull requests

- Successful merges: #40441, #40445, #40562, #40564, #40583, #40588, #40589, #40590, #40603, #40611, #40621, #40646, #40648
- Failed merges:
@bors bors merged commit f06b049 into rust-lang:master Mar 19, 2017
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