Point at associated type for some obligations #65288

        let obligations = self.nominal_obligations(trait_ref.def_id, trait_ref.substs);

        let cause = self.cause(traits::MiscObligation);
        let param_env = self.param_env;

+        let item = &self.item;
+        let extend_cause_with_original_assoc_item_obligation = |


Heh. Personally I'd have preferred to see this be a separate method, but I can accept this =) I do like the comments!

nikomatsakis · 2019-10-25T20:18:26Z

@bors r+

bors · 2019-10-25T20:18:27Z

📌 Commit 3a4cacd has been approved by nikomatsakis

bors · 2019-10-26T04:03:08Z

⌛ Testing commit 3a4cacd with merge e39dd255a4db06727866034e3a5288ddbf2b8fc4...

rust-highfive · 2019-10-26T04:06:34Z

Your PR failed (pretty log, raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

2019-10-26T04:05:26.6882267Z Chocolatey installed 0/1 packages. 1 packages failed.
2019-10-26T04:05:26.6882373Z  See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log).
2019-10-26T04:05:26.6886488Z 
2019-10-26T04:05:26.6890979Z Failures
2019-10-26T04:05:26.6897973Z  - msys2 (exited 1) - msys2 not installed. An error occurred during installation:
2019-10-26T04:05:26.6898130Z  The remote server returned an error: (503) Server Unavailable. Service Unavailable
2019-10-26T04:05:27.2648320Z 
2019-10-26T04:05:27.2727921Z ##[error]Bash exited with code '1'.
2019-10-26T04:05:27.2941242Z ##[section]Starting: Upload CPU usage statistics
2019-10-26T04:05:27.3050467Z ==============================================================================
2019-10-26T04:05:27.3050558Z Task         : Bash
2019-10-26T04:05:27.3050647Z Description  : Run a Bash script on macOS, Linux, or Windows
---
2019-10-26T04:05:27.5921823Z ========================== Starting Command Output ===========================
2019-10-26T04:05:27.5928678Z [command]"C:\Program Files\Git\bin\bash.exe" --noprofile --norc /d/a/_temp/14d1e8ad-af68-4cae-99bd-2df7273327fa.sh
2019-10-26T04:05:27.6371201Z /d/a/_temp/14d1e8ad-af68-4cae-99bd-2df7273327fa.sh: line 1: aws: command not found
2019-10-26T04:05:27.6403752Z 
2019-10-26T04:05:27.6425409Z ##[error]Bash exited with code '127'.
2019-10-26T04:05:27.6504119Z ##[section]Starting: Checkout
2019-10-26T04:05:27.6605334Z ==============================================================================
2019-10-26T04:05:27.6605441Z Task         : Get sources
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bors · 2019-10-26T04:06:45Z

💔 Test failed - checks-azure

JohnTitor · 2019-10-26T09:39:14Z

It's a network error.
@bors retry

…omatsakis Point at associated type for some obligations Partially address rust-lang#57663.

Point at associated type for some obligations Partially address #57663.

bors · 2019-10-27T03:35:02Z

⌛ Testing commit 3a4cacd with merge cf148a7...

bors · 2019-10-27T07:12:21Z

☀️ Test successful - checks-azure
Approved by: nikomatsakis
Pushing cf148a7 to master...

eddyb · 2019-11-01T15:35:44Z

src/librustc/ty/wf.rs

@@ -47,8 +50,9 @@ pub fn trait_obligations<'a, 'tcx>(
    body_id: hir::HirId,
    trait_ref: &ty::TraitRef<'tcx>,
    span: Span,
+    item: Option<&'tcx hir::Item>,


I don't think passing around references to the HIR fits ty::wf, this can just be an Option<DefId> and should probably be named something more suggestive.

eddyb · 2019-11-01T15:36:45Z

src/librustc/ty/wf.rs

        let obligations = self.nominal_obligations(trait_ref.def_id, trait_ref.substs);

        let cause = self.cause(traits::MiscObligation);
        let param_env = self.param_env;

+        let item = &self.item;


No need to borrow a Copy field.

rust-highfive assigned cramertj Oct 10, 2019

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estebank force-pushed the point-at-assoc-type branch from 447f3ff to c808d66 Compare October 10, 2019 23:24

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bors added a commit that referenced this pull request Oct 11, 2019

Auto merge of #65288 - estebank:point-at-assoc-type, r=<try>

afb10f4

Point at associated type for some obligations Partially address #57663.

rust-highfive assigned nikomatsakis and unassigned cramertj Oct 11, 2019

nikomatsakis requested changes Oct 22, 2019

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src/test/ui/associated-types/point-at-type-on-obligation-failure-2.stderr Outdated Show resolved Hide resolved

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estebank force-pushed the point-at-assoc-type branch from cbd994b to 9824ba6 Compare October 22, 2019 19:40

estebank added 5 commits October 22, 2019 12:42

Point at associated type for some obligations

58c6591

fix compile-fail test

88e4e2a

Handle projection obligation errors

5b58095

Drive-by formatting

0118278

review comments: move code, fix indentation and change span

669a403

estebank force-pushed the point-at-assoc-type branch from 9824ba6 to 8d4714a Compare October 22, 2019 20:24

Fix rebase

580a93e

estebank force-pushed the point-at-assoc-type branch from 8d4714a to 580a93e Compare October 22, 2019 20:24

Add comments

3a4cacd

estebank force-pushed the point-at-assoc-type branch from 0a7f7b4 to 3a4cacd Compare October 23, 2019 15:54

nikomatsakis approved these changes Oct 25, 2019

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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 25, 2019

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 Oct 26, 2019

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 26, 2019

Centril added a commit to Centril/rust that referenced this pull request Oct 26, 2019

Rollup merge of rust-lang#65288 - estebank:point-at-assoc-type, r=nik…

677cbd0

…omatsakis Point at associated type for some obligations Partially address rust-lang#57663.

Centril mentioned this pull request Oct 26, 2019

Rollup of 7 pull requests #65854

Closed

bors added a commit that referenced this pull request Oct 27, 2019

Auto merge of #65288 - estebank:point-at-assoc-type, r=nikomatsakis

cf148a7

Point at associated type for some obligations Partially address #57663.

bors added the merged-by-bors This PR was explicitly merged by bors. label Oct 27, 2019

bors merged commit 3a4cacd into rust-lang:master Oct 27, 2019

eddyb reviewed Nov 1, 2019

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Mark-Simulacrum mentioned this pull request Nov 2, 2019

Compile hangs endlessly in LLVM in await-heavy code when ThinLTO is enabled #66036

Closed

xiaotianrandom mentioned this pull request May 31, 2020

Wrong obligation cause span of associated type mismatch #72806

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estebank deleted the point-at-assoc-type branch November 9, 2023 05:18

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Point at associated type for some obligations #65288

Point at associated type for some obligations #65288

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