bors f967532a47 Auto merge of #118420 - compiler-errors:async-gen, r=eholk ... Introduce support for `async gen` blocks I'm delighted to demonstrate that `async gen` block are not very difficult to support. They're simply coroutines that yield `Poll<Option<T>>` and return `()`. **This PR is WIP and in draft mode for now** -- I'm mostly putting it up to show folks that it's possible. This PR needs a lang-team experiment associated with it or possible an RFC, since I don't think it falls under the jurisdiction of the `gen` RFC that was recently authored by oli (https://github.com/rust-lang/rfcs/pull/3513, https://github.com/rust-lang/rust/issues/117078). ### Technical note on the pre-generator-transform yield type: The reason that the underlying coroutines yield `Poll<Option<T>>` and not `Poll<T>` (which would make more sense, IMO, for the pre-transformed coroutine), is because the `TransformVisitor` that is used to turn coroutines into built-in state machine functions would have to destructure and reconstruct the latter into the former, which requires at least inserting a new basic block (for a `switchInt` terminator, to match on the `Poll` discriminant). This does mean that the desugaring (at the `rustc_ast_lowering` level) of `async gen` blocks is a bit more involved. However, since we already need to intercept both `.await` and `yield` operators, I don't consider it much of a technical burden. r? `@ghost`		2023-12-08 19:13:57 +00:00
..
rustc	Clean up rustc_*/Cargo.toml.	2023-10-30 08:46:02 +11:00
rustc_abi	Rename LayoutCalculator::delay_bug as LayoutCalculator::delayed_bug.	2023-12-02 09:01:34 +11:00
rustc_arena	rustc_arena: add alloc_str	2023-12-05 17:52:51 -08:00
rustc_ast	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_ast_lowering	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_ast_passes	Make some matches exhaustive to avoid bugs, fix tools	2023-12-08 17:23:26 +00:00
rustc_ast_pretty	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_attr	Use Session::diagnostic in more places.	2023-12-02 09:01:35 +11:00
rustc_baked_icu_data	Bump cfg(bootstrap)s	2023-11-15 19:41:28 -05:00
rustc_borrowck	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_builtin_macros	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_codegen_cranelift	Auto merge of #118324 - RalfJung:ctfe-read-only-pointers, r=saethlin	2023-12-07 18:11:01 +00:00
rustc_codegen_gcc	Auto merge of #118324 - RalfJung:ctfe-read-only-pointers, r=saethlin	2023-12-07 18:11:01 +00:00
rustc_codegen_llvm	Auto merge of #118568 - DianQK:no-builtins-symbols, r=pnkfelix	2023-12-07 20:31:55 +00:00
rustc_codegen_ssa	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_const_eval	Auto merge of #118689 - compiler-errors:const-drop, r=fee1-dead	2023-12-08 13:43:12 +00:00
rustc_data_structures	1. fix jobserver GLOBAL_CLIENT_CHECKED uninitialized before use	2023-12-08 09:50:28 +08:00
rustc_driver	Bump cfg(bootstrap)s	2023-11-15 19:41:28 -05:00
rustc_driver_impl	rustc_driver_impl: Address all rustc::potential_query_instability lints	2023-12-05 06:19:14 +01:00
rustc_error_codes	Yeet E0744	2023-11-28 20:40:38 +00:00
rustc_error_messages	Remove rustc_error_messages/messages.ftl.	2023-11-26 08:37:27 +11:00
rustc_errors	Inline and remove fatal_no_raise.	2023-12-04 18:57:42 +11:00
rustc_expand	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_feature	Auto merge of #118605 - fee1-dead-contrib:rm-rustc_host, r=compiler-errors	2023-12-06 16:00:24 +00:00
rustc_fluent_macro	Add a useful comment.	2023-11-26 08:38:02 +11:00
rustc_fs_util	Clean up rustc_*/Cargo.toml.	2023-10-30 08:46:02 +11:00
rustc_graphviz	remove unused pub fn	2023-11-23 14:11:02 +03:00
rustc_hir	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_hir_analysis	Auto merge of #118668 - fmease:resolve-assoc-item-bindings-by-namespace, r=compiler-errors	2023-12-08 09:30:52 +00:00
rustc_hir_pretty	Remove #[rustc_host], use internal desugaring	2023-12-05 01:15:21 +00:00
rustc_hir_typeck	HACK: constrain yield type in check_fn so that projection is successful even with no yield	2023-12-08 17:23:26 +00:00
rustc_incremental	Rename HandlerInner::delayed_span_bugs as HandlerInner::span_delayed_bugs.	2023-12-02 09:01:34 +11:00
rustc_index	Replace no_ord_impl with orderable.	2023-11-22 18:38:17 +11:00
rustc_index_macros	Put backticks around some attributes in doc comments.	2023-11-27 09:37:01 +11:00
rustc_infer	update fixme	2023-12-08 02:16:29 +01:00
rustc_interface	1. fix jobserver GLOBAL_CLIENT_CHECKED uninitialized before use	2023-12-08 09:50:28 +08:00
rustc_lexer	Clean up rustc_*/Cargo.toml.	2023-10-30 08:46:02 +11:00
rustc_lint	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_lint_defs	Auto merge of #118324 - RalfJung:ctfe-read-only-pointers, r=saethlin	2023-12-07 18:11:01 +00:00
rustc_llvm	Rollup merge of #118177 - sivadeilra:suppress-llvm-warnings, r=cuviper	2023-12-06 21:52:31 +01:00
rustc_log	rustc_log: provide a way to init logging based on the values, not names, of the env vars	2023-11-11 15:24:33 +01:00
rustc_macros	Unify HashStable implementations	2023-11-21 05:49:45 +00:00
rustc_metadata	Auto merge of #118488 - andjo403:remove_deadlock, r=SparrowLii	2023-12-05 14:02:15 +00:00
rustc_middle	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_mir_build	Rollup merge of #118598 - Nadrieril:remove_precise_pointer_size_matching, r=davidtwco	2023-12-05 16:08:35 +01:00
rustc_mir_dataflow	Deparameterize Results and ResultsCursor.	2023-11-27 10:35:43 +11:00
rustc_mir_transform	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_monomorphize	Rollup merge of #118693 - saethlin:alignment-check-symbol-reachable, r=bjorn3	2023-12-08 06:44:42 +01:00
rustc_parse	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_parse_format	Auto merge of #117819 - fmease:rustc_parse_format-stable-rustc, r=Nilstrieb	2023-11-15 14:55:35 +00:00
rustc_passes	Remove #[rustc_host], use internal desugaring	2023-12-05 01:15:21 +00:00
rustc_privacy	privacy: Simplify update_macro_reachable	2023-12-06 16:44:14 +03:00
rustc_query_impl	QueryContext: rename try_collect_active_jobs -> collect_active_jobs and change it's return type from Option<QueryMap> to QueryMap	2023-11-27 18:13:15 +03:00
rustc_query_system	Rollup merge of #118123 - RalfJung:internal-lib-features, r=compiler-errors	2023-12-05 14:52:41 -05:00
rustc_resolve	Auto merge of #118420 - compiler-errors:async-gen, r=eholk	2023-12-08 19:13:57 +00:00
rustc_serialize	Call FileEncoder::finish in rmeta encoding	2023-11-22 22:49:22 -05:00
rustc_session	Rollup merge of #118709 - oksbsb:fix-job-server, r=SparrowLii	2023-12-08 06:44:43 +01:00
rustc_smir	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_span	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_symbol_mangling	CFI: Add char to CFI integer normalization	2023-12-07 11:28:16 -08:00
rustc_target	targets: remove not-added {i386,i486}-unknown-linux-gnu	2023-12-07 15:36:00 +00:00
rustc_trait_selection	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_traits	add unused NormalizesTo predicate	2023-12-07 17:52:51 +01:00
rustc_transmute	Update itertools to 0.11.	2023-11-22 08:13:21 +11:00
rustc_ty_utils	Implement async gen blocks	2023-12-08 17:23:25 +00:00
rustc_type_ir	implement and use NormalizesTo	2023-12-08 01:31:18 +01:00
stable_mir	Rollup merge of #118688 - celinval:smir-rvalue-ty, r=compiler-errors	2023-12-07 21:38:08 +01:00