bors 208dd2032b Auto merge of #118847 - eholk:for-await, r=compiler-errors ... Add support for `for await` loops This adds support for `for await` loops. This includes parsing, desugaring in AST->HIR lowering, and adding some support functions to the library. Given a loop like: ```rust for await i in iter { ... } ``` this is desugared to something like: ```rust let mut iter = iter.into_async_iter(); while let Some(i) = loop { match core::pin::Pin::new(&mut iter).poll_next(cx) { Poll::Ready(i) => break i, Poll::Pending => yield, } } { ... } ``` This PR also adds a basic `IntoAsyncIterator` trait. This is partly for symmetry with the way `Iterator` and `IntoIterator` work. The other reason is that for async iterators it's helpful to have a place apart from the data structure being iterated over to store state. `IntoAsyncIterator` gives us a good place to do this. I've gated this feature behind `async_for_loop` and opened #118898 as the feature tracking issue. r? `@compiler-errors`		2023-12-22 14:17:10 +00:00
..
rustc
rustc_abi	Annotate panic! reasons during enum layout	2023-12-15 02:21:31 -08:00
rustc_arena	rustc_arena: add alloc_str	2023-12-05 17:52:51 -08:00
rustc_ast	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +00:00
rustc_ast_lowering	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +00:00
rustc_ast_passes	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +00:00
rustc_ast_pretty	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +00:00
rustc_attr	Add level arg to into_diagnostic.	2023-12-19 09:19:25 +11:00
rustc_baked_icu_data	Bump cfg(bootstrap)s	2023-11-15 19:41:28 -05:00
rustc_borrowck	Remove unnecessary param-env from lexical region resolution and fully structural relations	2023-12-19 15:10:26 +00:00
rustc_builtin_macros	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +00:00
rustc_codegen_cranelift	Merge commit '3a9bf729322fb5035518f99b9d76a742bf7c124e' into sync_cg_clif-2023-12-19	2023-12-19 12:46:39 +00:00
rustc_codegen_gcc	Add level arg to into_diagnostic.	2023-12-19 09:19:25 +11:00
rustc_codegen_llvm	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_codegen_ssa	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_const_eval	Add level arg to into_diagnostic.	2023-12-19 09:19:25 +11:00
rustc_data_structures	NFC don't convert types to identical types	2023-12-15 23:56:24 +01:00
rustc_driver	Bump cfg(bootstrap)s	2023-11-15 19:41:28 -05:00
rustc_driver_impl	Rename many DiagCtxt and EarlyDiagCtxt locals.	2023-12-18 16:06:22 +11:00
rustc_error_codes	E0761: module directory has .rs suffix	2023-12-20 17:05:56 +01:00
rustc_error_messages	Remove rustc_error_messages/messages.ftl.	2023-11-26 08:37:27 +11:00
rustc_errors	Remove unused DiagCtxt::span_bug_no_panic.	2023-12-19 20:58:49 +11:00
rustc_expand	Auto merge of #119163 - fmease:refactor-ast-trait-bound-modifiers, r=compiler-errors	2023-12-22 02:00:55 +00:00
rustc_feature	Desugar for await loops	2023-12-19 12:26:27 -08:00
rustc_fluent_macro	Add a useful comment.	2023-11-26 08:38:02 +11:00
rustc_fs_util
rustc_graphviz	remove unused pub fn	2023-11-23 14:11:02 +03:00
rustc_hir	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +00:00
rustc_hir_analysis	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_hir_pretty	Give VariantData::Struct named fields, to clairfy recovered.	2023-12-20 00:07:34 +00:00
rustc_hir_typeck	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_incremental	Move some methods from tcx.hir() to tcx	2023-12-12 06:40:29 -08:00
rustc_index	Make rustc_index::bit_set available on stable	2023-12-15 16:58:38 +01:00
rustc_index_macros	Put backticks around some attributes in doc comments.	2023-11-27 09:37:01 +11:00
rustc_infer	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_interface	Rename many DiagCtxt and EarlyDiagCtxt locals.	2023-12-18 16:06:22 +11:00
rustc_lexer	Rename some unescaping functions.	2023-12-13 14:17:50 +11:00
rustc_lint	Plumb awaitness of for loops	2023-12-19 12:26:20 -08:00
rustc_lint_defs	Remove the lint outright	2023-12-16 01:28:06 +00:00
rustc_llvm	Rollup merge of #118941 - krasimirgg:llvm-cov, r=nikic	2023-12-18 17:03:11 +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	Add level arg to into_diagnostic.	2023-12-19 09:19:25 +11:00
rustc_metadata	Auto merge of #119173 - compiler-errors:direct-coro-kind, r=TaKO8Ki	2023-12-22 04:07:40 +00:00
rustc_middle	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_mir_build	Auto merge of #116821 - Nadrieril:fix-opaque-ice, r=compiler-errors	2023-12-22 12:12:12 +00:00
rustc_mir_dataflow	NFC don't convert types to identical types	2023-12-15 23:56:24 +01:00
rustc_mir_transform	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_monomorphize	Add level arg to into_diagnostic.	2023-12-19 09:19:25 +11:00
rustc_next_trait_solver	Opportunistically resolve region var in canonicalizer	2023-12-15 05:02:37 +00:00
rustc_parse	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +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	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +00:00
rustc_pattern_analysis	Reveal opaque types in exhaustiveness checking	2023-12-20 14:43:00 +01:00
rustc_privacy	resolve: Eagerly feed closure visibilities	2023-12-20 13:42:58 +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	Use .into_diagnostic() less.	2023-12-18 20:46:13 +11:00
rustc_resolve	Auto merge of #118847 - eholk:for-await, r=compiler-errors	2023-12-22 14:17:10 +00:00
rustc_serialize	Call FileEncoder::finish in rmeta encoding	2023-11-22 22:49:22 -05:00
rustc_session	Add EmitResult associated type to EmissionGuarantee.	2023-12-19 09:52:02 +11:00
rustc_smir	Rollup merge of #119141 - celinval:smir-instance-args, r=compiler-errors	2023-12-20 21:18:59 +01:00
rustc_span	Desugar for await loops	2023-12-19 12:26:27 -08:00
rustc_symbol_mangling	Add level arg to into_diagnostic.	2023-12-19 09:19:25 +11:00
rustc_target	Fix name error in aarch64_apple_watchos tier 3 target	2023-12-21 13:53:11 +08:00
rustc_trait_selection	Auto merge of #119097 - nnethercote:fix-EmissionGuarantee, r=compiler-errors	2023-12-22 00:03:57 +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	Rollup merge of #118871 - tmiasko:coroutine-maybe-uninit-fields, r=compiler-errors	2023-12-13 18:03:33 +01:00
rustc_type_ir	Auto merge of #118970 - aliemjay:rollup-or33al2, r=aliemjay	2023-12-15 08:51:00 +00:00
stable_mir	Rollup merge of #119141 - celinval:smir-instance-args, r=compiler-errors	2023-12-20 21:18:59 +01:00