5978b6ff83
Fix `async Fn` confirmation for `FnDef`/`FnPtr`/`Closure` types Fixes three issues: 1. The code in `extract_tupled_inputs_and_output_from_async_callable` was accidentally getting the *future* type and the *output* type (returned by the future) messed up for fnptr/fndef/closure types. :/ 2. We have a (class of) bug(s) in the old solver where we don't really support higher ranked built-in `Future` goals for generators. This is not possible to hit on stable code, but [can be hit with `unboxed_closures`](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=e935de7181e37e13515ad01720bcb899) (#121653). * I'm opting not to fix that in this PR. Instead, I just instantiate placeholders when confirming `async Fn` goals. 4. Fixed a bug when generating `FnPtr` shims for `async Fn` trait goals. r? oli-obk |
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The Rust Programming Language
This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
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Table of Contents
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See CONTRIBUTING.md.
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See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.
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