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if- and while-let-chains, take 2 - edition changes #53854

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merged 3 commits into from
Sep 10, 2018
Merged

if- and while-let-chains, take 2 - edition changes #53854

merged 3 commits into from
Sep 10, 2018

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davidtwco
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@davidtwco davidtwco commented Aug 31, 2018 •
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Part of #53668.

r? @nikomatsakis

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Added warning/error for if-let-chain ambiguity.
2ce56c5 
With eRFC 2497, previously accepted ambigious syntax regarding use of
`&&` and `||` in if-let and while-let statements should now warn
or error depending on the edition.

This commit takes a naive approach to detecting ambigious use of `&&`
or `||` and will probably need fine tuned to handle all cases.
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 31, 2018
nikomatsakis
nikomatsakis requested changes Aug 31, 2018
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src/libsyntax/parse/parser.rs Outdated Show resolved Hide resolved
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cc @Centril -- so do you feel there is no need for a crater run here, given @SergioBenitez's testing?

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Centril commented Aug 31, 2018 •
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@nikomatsakis afair @SergioBenitez's testing was some time ago, so if we have the time for crater (we do right?) it could still be better safe than sorry to do a crater run; but I would also add that I don't feel strongly either way.

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Oops, forgot to update the test output. Thought I'd forgot something. 🤦‍♂️

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@bors try

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bors commented Sep 4, 2018

⌛ Trying commit 8c92cbe with merge 51ff957df5095d92d1d3d4682207ee8b7ad408a8...

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bors commented Sep 4, 2018

☀️ Test successful - status-travis
State: approved= try=True

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@craterbot run start=master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 end=try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 mode=check-only

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👌 Experiment pr-53854 created and queued.

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

@craterbot craterbot added S-waiting-on-crater Status: Waiting on a crater run to be completed. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 5, 2018
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🚧 Experiment pr-53854 is now running on agent aws-2.

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

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🎉 Experiment pr-53854 is completed!
📰 Open the full report.

⚠️ If you notice any spurious failure please add them to the blacklist!
ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

@craterbot craterbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-crater Status: Waiting on a crater run to be completed. labels Sep 6, 2018
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Centril commented Sep 6, 2018

The good news is that crater found zero real regressions :)

@nikomatsakis nikomatsakis changed the title WIP: if- and while-let-chains, take 2 - edition changes if- and while-let-chains, take 2 - edition changes Sep 6, 2018
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@bors r+

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bors commented Sep 7, 2018

📌 Commit 0a8cf67 has been approved by nikomatsakis

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 7, 2018
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bors commented Sep 8, 2018

⌛ Testing commit 0a8cf67 with merge 748cca41f7fbcb0e018e05935b76172435189af6...

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bors commented Sep 8, 2018

💔 Test failed - status-appveyor

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Sep 8, 2018
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kennytm commented Sep 9, 2018

@bors retry

note: C:/projects/rust/mingw32/bin/../lib/gcc/i686-w64-mingw32/6.3.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot open output file C:\\projects\\rust\\build\\i686-pc-windows-gnu\\test\\ui\\issues\\issue-19100\\a.exe: Permission denied

Feels spurious.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 9, 2018
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bors commented Sep 10, 2018

⌛ Testing commit 0a8cf67 with merge fb945f0...

bors added a commit that referenced this pull request Sep 10, 2018
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Auto merge of #53854 - davidtwco:issue-53668, r=nikomatsakis
fb945f0 
if- and while-let-chains, take 2 - edition changes

Part of #53668.

r? @nikomatsakis
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bors commented Sep 10, 2018

☀️ Test successful - status-appveyor, status-travis
Approved by: nikomatsakis
Pushing fb945f0 to master...

@bors bors merged commit 0a8cf67 into rust-lang:master Sep 10, 2018
@davidtwco davidtwco deleted the issue-53668 branch September 10, 2018 09:33
@Centril Centril mentioned this pull request Sep 17, 2018
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