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debuginfo: Fix bug in type name generation for dyn types with associated types but no other generic arguments. #94810

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Merged
merged 1 commit into from
Mar 15, 2022
Merged

debuginfo: Fix bug in type name generation for dyn types with associated types but no other generic arguments. #94810

merged 1 commit into from
Mar 15, 2022

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michaelwoerister
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For types like &dyn Future<Output=bool> the compiler currently emits invalid types names in debuginfo. This PR fixes this.

Before:

// DWARF
&dyn core::future::future::Future, Output=bool> 

// CodeView
ref$<dyn$<core::future::future::Future,assoc$<Output,bool> > > >

After:

// DWARF
&dyn core::future::future::Future<Output=bool> 

// CodeView
ref$<dyn$<core::future::future::Future<assoc$<Output,bool> > > >

These syntactically incorrect type names can cause downstream tools (e.g. debugger extensions) crash when trying to parse them.

r? @wesleywiser

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Mar 10, 2022
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Mar 10, 2022
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@bors r+ rollup

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bors commented Mar 15, 2022

📌 Commit 5cd8a2a has been approved by wesleywiser

@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 Mar 15, 2022
@matthiaskrgr matthiaskrgr mentioned this pull request Mar 15, 2022
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bors added a commit to rust-lang-ci/rust that referenced this pull request Mar 15, 2022
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Auto merge of rust-lang#94966 - matthiaskrgr:rollup-iqzswh3, r=matthi…
83460d5 
…askrgr

Rollup of 4 pull requests

Successful merges:

 - rust-lang#94810 (debuginfo: Fix bug in type name generation for dyn types with associated types but no other generic arguments.)
 - rust-lang#94947 (fix typos)
 - rust-lang#94956 (Fix small typo in FIXME)
 - rust-lang#94958 (Support other types of pluralization in pluralize macro)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
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bors commented Mar 15, 2022

⌛ Testing commit 5cd8a2a with merge 83460d5...

@bors bors merged commit e755f2c into rust-lang:master Mar 15, 2022
@rustbot rustbot added this to the 1.61.0 milestone Mar 15, 2022
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@wesleywiser wesleywiser wesleywiser approved these changes

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@wesleywiser wesleywiser

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