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EXPERIMENT: Make async fn, .await, async move? { legal on 2015 #64286

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Centril opened this issue Sep 8, 2019 · 0 comments
Open

EXPERIMENT: Make async fn, .await, async move? { legal on 2015 #64286

Centril opened this issue Sep 8, 2019 · 0 comments
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@Centril
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A-async-await Area: Async & Await A-parser Area: The parsing of Rust source code to an AST. AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-enhancement Category: An issue proposing an enhancement or a PR with one. I-needs-decision Issue: In need of a decision. P-low Low priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team, which will review and decide on the PR/issue.

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@Centril
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Centril commented Sep 8, 2019

The parser currently will not parse async fn, async move? $block, and <expr>.await on Rust 2015.

Check whether:

  • doing so would simplify the parser & the grammar.
  • it is feasible with a crater run for <expr>.await and async move? $block

Drawbacks include:

  • folks having fewer incentives to use Rust 2018.
@Centril Centril added C-enhancement Category: An issue proposing an enhancement or a PR with one. A-parser Area: The parsing of Rust source code to an AST. P-low Low priority I-needs-decision Issue: In need of a decision. T-lang Relevant to the language team, which will review and decide on the PR/issue. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. labels Sep 8, 2019
@Centril Centril self-assigned this Sep 8, 2019
@estebank estebank mentioned this issue Dec 17, 2019
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@Centril Centril

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A-async-await Area: Async & Await A-parser Area: The parsing of Rust source code to an AST. AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-enhancement Category: An issue proposing an enhancement or a PR with one. I-needs-decision Issue: In need of a decision. P-low Low priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team, which will review and decide on the PR/issue.
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@Centril