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Unconditionally capture tokens for attributes. #77255

Merged
merged 4 commits into from
Oct 24, 2020
Merged

Unconditionally capture tokens for attributes. #77255

merged 4 commits into from
Oct 24, 2020

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Aaron1011
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This allows us to avoid synthesizing tokens in prepend_attr, since we
have the original tokens available.

We still need to synthesize tokens when expanding cfg_attr,
but this is an unavoidable consequence of the syntax of cfg_attr -
the user does not supply the # and [] tokens that a cfg_attr
expands to.

This is based on PR #77250 - this PR exposes a bug in the current collect_tokens implementation, which is fixed by the rewrite.

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r? @eddyb

(rust_highfive has picked a reviewer for you, use r? to override)

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Sep 27, 2020
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@bors try @rust-timer queue

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Awaiting bors try build completion

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bors commented Sep 27, 2020

⌛ Trying commit 621463923b669eb8e70c465bffa8eab63bb55b74 with merge 01460526ba12973fff687fd5d0771741d6dec0d0...

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bors commented Sep 27, 2020

☀️ Try build successful - checks-actions, checks-azure
Build commit: 01460526ba12973fff687fd5d0771741d6dec0d0 (01460526ba12973fff687fd5d0771741d6dec0d0)

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Queued 01460526ba12973fff687fd5d0771741d6dec0d0 with parent 1ec980d, future comparison URL.

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r? @petrochenkov

@rust-highfive rust-highfive assigned petrochenkov and unassigned eddyb Sep 27, 2020
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Blocked on #77250.

@petrochenkov petrochenkov added S-blocked Status: Marked as blocked ❌ on something else such as an RFC or other implementation work. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 27, 2020
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Finished benchmarking try commit (01460526ba12973fff687fd5d0771741d6dec0d0): comparison url.

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. Please note that if the perf results are neutral, you should likely undo the rollup=never given below by specifying rollup- to bors.

Importantly, though, if the results of this run are non-neutral do not roll this PR up -- it will mask other regressions or improvements in the roll up.

@bors rollup=never

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A lot of the slowdown is probably due to #77250

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#77250 has landed.

@petrochenkov petrochenkov added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-blocked Status: Marked as blocked ❌ on something else such as an RFC or other implementation work. labels Oct 21, 2020
@Aaron1011
Unconditionally capture tokens for attributes.
b9b2546 
This allows us to avoid synthesizing tokens in `prepend_attr`, since we
have the original tokens available.

We still need to synthesize tokens when expanding `cfg_attr`,
but this is an unavoidable consequence of the syntax of `cfg_attr` -
the user does not supply the `#` and `[]` tokens that a `cfg_attr`
expands to.
@Aaron1011
Strip tokens before printing AST JSON
37b25e8
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@bors try @rust-timer queue

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Awaiting bors try build completion

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bors commented Oct 21, 2020

⌛ Trying commit 37b25e8 with merge c2017a52dcd6c36ff6aacd9632eed4b96f7440aa...

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bors commented Oct 22, 2020

☀️ Try build successful - checks-actions, checks-azure
Build commit: c2017a52dcd6c36ff6aacd9632eed4b96f7440aa (c2017a52dcd6c36ff6aacd9632eed4b96f7440aa)

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Queued c2017a52dcd6c36ff6aacd9632eed4b96f7440aa with parent 1eaadeb, future comparison URL.

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@bors try @rust-timer queue

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Awaiting bors try build completion

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bors commented Oct 22, 2020

⌛ Trying commit 5c7d8d0 with merge 67a0ba996f5e1d8ba58854397300e83feaf43de2...

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@rust-timer build 67a0ba996f5e1d8ba58854397300e83feaf43de2

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Queued 67a0ba996f5e1d8ba58854397300e83feaf43de2 with parent a9cd294, future comparison URL.

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cc @rust-lang/infra The try build completed, but Bors never left a comment.

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bors commented Oct 22, 2020

💥 Test timed out

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Oct 22, 2020
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Finished benchmarking try commit (67a0ba996f5e1d8ba58854397300e83feaf43de2): comparison url.

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. Please note that if the perf results are neutral, you should likely undo the rollup=never given below by specifying rollup- to bors.

Importantly, though, if the results of this run are non-neutral do not roll this PR up -- it will mask other regressions or improvements in the roll up.

@bors rollup=never

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The performance impact is now less than 0.5%

@petrochenkov: This is now ready for review

@Aaron1011 Aaron1011 mentioned this pull request Oct 23, 2020
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@bors r+

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bors commented Oct 24, 2020

📌 Commit 5c7d8d0 has been approved by petrochenkov

@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 Oct 24, 2020
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bors commented Oct 24, 2020

⌛ Testing commit 5c7d8d0 with merge ffa2e7a...

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bors commented Oct 24, 2020

☀️ Test successful - checks-actions
Approved by: petrochenkov
Pushing ffa2e7a to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Oct 24, 2020
@bors bors merged commit ffa2e7a into rust-lang:master Oct 24, 2020
@rustbot rustbot added this to the 1.49.0 milestone Oct 24, 2020
Aaron1011 added a commit to Aaron1011/rust that referenced this pull request Oct 26, 2020
@Aaron1011
Remove tokens from foreign items in TokenStripper
174ed0c 
Fixes rust-lang#78398

I forgot to handle this case in rust-lang#77255
@Aaron1011 Aaron1011 mentioned this pull request Oct 26, 2020
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Dylan-DPC-zz pushed a commit to Dylan-DPC-zz/rust that referenced this pull request Oct 28, 2020
@Dylan-DPC
Rollup merge of rust-lang#78408 - Aaron1011:fix/remove-foreign-tokens…
14b4ed2 
…, r=oli-obk

Remove tokens from foreign items in `TokenStripper`

Fixes rust-lang#78398

I forgot to handle this case in rust-lang#77255
@petrochenkov petrochenkov mentioned this pull request Nov 3, 2020
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@SNCPlay42 SNCPlay42 mentioned this pull request Nov 9, 2020
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@jruderman jruderman mentioned this pull request Nov 13, 2022
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