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path: root/src/libsyntax/parse/parser.rs
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2019-03-22Reword type ascription note to reduce verbosityEsteban Küber-5/+1
2019-03-22Review commentEsteban Küber-2/+2
2019-03-22Expand suggestions for type ascription parse errorsEsteban Küber-13/+66
2019-03-22Rollup merge of #59322 - estebank:diag-tweak, r=davidtwcoMazdak Farrokhzad-4/+9
Tweak incorrect escaped char diagnostic
2019-03-22Rollup merge of #59266 - estebank:struct-parse-recovery, r=petrochenkovMazdak Farrokhzad-10/+20
Do not complain about non-existing fields after parse recovery When failing to parse struct-like enum variants, the ADT gets recorded as having no fields. Record that we have actually recovered during parsing of this variant to avoid complaing about non-existing fields when actually using it. Fix #57361.
2019-03-22Auto merge of #59031 - estebank:recover-from-comaless, r=petrochenkovbors-3/+33
Recover from missing comma between enum variants and from bad `pub` kw Fix #56579. Fix #56473.
2019-03-20Tweak incorrect escaped char diagnosticEsteban Küber-4/+9
2019-03-19review commentsEsteban Küber-1/+3
2019-03-18Auto merge of #58872 - rep-nop:diagnostic-fix-56031, r=petrochenkovbors-3/+11
Adds help message in error for invalid `impl for T` syntax Fixes #56031.
2019-03-17Do not complain about non-existing fields after parse recoveryEsteban Küber-10/+18
When failing to parse struct-like enum variants, the ADT gets recorded as having no fields. Record that we have actually recovered during parsing of this variant to avoid complaing about non-existing fields when actually using it.
2019-03-16Simplify checkEsteban Küber-5/+1
2019-03-16parse full visibility when recoveringEsteban Küber-5/+9
2019-03-16Recover from incorrect `pub` kw in "reasonable" placesEsteban Küber-1/+13
2019-03-16Recover from missing comma between enum variantsEsteban Küber-2/+20
2019-03-16Rename `MetaItem::ident` to `MetaItem::path`Vadim Petrochenkov-1/+1
2019-03-16syntax: Introduce `Ident::can_be_raw`Vadim Petrochenkov-3/+1
2019-03-14Do not complain about unmentioned fields in recovered patternsEsteban Küber-1/+1
When the parser has to recover from malformed code in a pattern, do not complain about missing fields.
2019-03-13add suggestions to invalid macro item errorAndy Russell-20/+25
2019-03-12Address review commentsVadim Petrochenkov-2/+6
2019-03-12syntax: Optimize `maybe_whole`/`maybe_whole_expr` slightlyVadim Petrochenkov-14/+14
2019-03-12syntax: Better recovery for `$ty::AssocItem` and `ty!()::AssocItem`Vadim Petrochenkov-73/+63
2019-03-09fixes rust-lang#56766Saleem Jaffer-0/+16
2019-03-09Auto merge of #59012 - pietroalbini:rollup, r=pietroalbinibors-24/+28
Rollup of 24 pull requests Successful merges: - #58080 (Add FreeBSD armv6 and armv7 targets) - #58204 (On return type `impl Trait` for block with no expr point at last semi) - #58269 (Add librustc and libsyntax to rust-src distribution.) - #58369 (Make the Entry API of HashMap<K, V> Sync and Send) - #58861 (Expand where negative supertrait specific error is shown) - #58877 (Suggest removal of `&` when borrowing macro and appropriate) - #58883 (Suggest appropriate code for unused field when destructuring pattern) - #58891 (Remove stray ` in the docs for the FromIterator implementation for Option) - #58893 (race condition in thread local storage example) - #58906 (Monomorphize generator field types for debuginfo) - #58911 (Regression test for #58435.) - #58912 (Regression test for #58813) - #58916 (Fix release note problems noticed after merging.) - #58918 (Regression test added for an async ICE.) - #58921 (Add an explicit test for issue #50582) - #58926 (Make the lifetime parameters of tcx consistent.) - #58931 (Elide invalid method receiver error when it contains TyErr) - #58940 (Remove JSBackend from config.toml) - #58950 (Add self to mailmap) - #58961 (On incorrect cfg literal/identifier, point at the right span) - #58963 (libstd: implement Error::source for io::Error) - #58970 (delay_span_bug in wfcheck's ty.lift_to_tcx unwrap) - #58984 (Teach `-Z treat-err-as-bug` to take a number of errors to emit) - #59007 (Add a test for invalid const arguments) Failed merges: - #58959 (Add release notes for PR #56243) r? @ghost
2019-03-08Improve recovery for missing trait in a trait implVadim Petrochenkov-11/+11
2019-03-07Adds diagnostic message and UI test.Wesley Norris-1/+9
2019-03-06Rely on drop to emit unclosed delimsEsteban Küber-1/+0
2019-03-06Simplify codeEsteban Küber-4/+2
2019-03-06Always emit mismatched delim errors, never panicEsteban Küber-3/+2
2019-03-06Collect unclosed delimiters in parent parserEsteban Küber-4/+13
2019-03-06Emit missing unclosed delimiter errorsEsteban Küber-5/+9
2019-03-06Panic when unmatched delimiters aren't emittedEsteban Küber-0/+7
2019-03-06Emit unclosed delimiters during recoveryEsteban Küber-0/+1
2019-03-06Bail when encountering a second unexpected token in the same spanEsteban Küber-4/+10
2019-03-06Do not panic on missing close parenEsteban Küber-1/+3
Fix #58856.
2019-03-01Expand where negative supertrait specific error is shownEsteban Küber-24/+28
Fix #58857.
2019-02-28Auto merge of #57760 - dlrobertson:varargs1, r=alexregbors-60/+70
Support defining C compatible variadic functions ## Summary Add support for defining C compatible variadic functions in unsafe rust with `extern "C"` according to [RFC 2137]. ## Details ### Parsing When parsing a user defined function that is `unsafe` and `extern "C"` allow variadic signatures and inject a "spoofed" `VaList` in the new functions signature. This allows the user to interact with the variadic arguments via a `VaList` instead of manually using `va_start` and `va_end` (See [RFC 2137] for details). ### Codegen When running codegen for a variadic function, remove the "spoofed" `VaList` from the function signature and inject `va_start` when the arg local references are created for the function and `va_end` on return. ## TODO - [x] Get feedback on injecting `va_start/va_end` in MIR vs codegen - [x] Properly inject `va_end` - It seems like it should be possible to inject `va_end` on the `TerminatorKind::Return`. I just need to figure out how to get the `LocalRef` here. - [x] Properly call Rust defined C variadic functions in Rust - The spoofed `VaList` causes problems here. Related to: #44930 r? @ghost [RFC 2137]: https://github.com/rust-lang/rfcs/blob/master/text/2137-variadic.md
2019-02-27Rename variadic to c_variadicDan Robertson-24/+24
Function signatures with the `variadic` member set are actually C-variadic functions. Make this a little more explicit by renaming the `variadic` boolean value, `c_variadic`.
2019-02-27Support defining C compatible variadic functionsDan Robertson-48/+58
Add support for defining C compatible variadic functions in unsafe rust with extern "C".
2019-02-27Rollup merge of #58678 - doctorn:refuse-async-fn-2015-edition, r=varkorMazdak Farrokhzad-11/+28
Deny `async fn` in 2015 edition This commit prevents code using `async fn` from being compiled in Rust 2015 edition. Compiling code of the form: ```rust async fn foo() {} ``` Will now result in the error: ``` error[E0670]: `async fn` is not permitted in the 2015 edition --> async.rs:1:1 | 1 | async fn foo() {} | ^^^^^ error: aborting due to error For more information about an error, try `rustc --explain E0670`. ``` This resolves #58652 and also resolves #53714. r? @varkor
2019-02-24Deny `async fn` in 2015 editionNathan Corbyn-11/+28
Fix style issues and update diagnostic messages Update src/librustc_passes/diagnostics.rs Co-Authored-By: doctorn <me@nathancorbyn.com> Deny nested `async fn` in Rust 2015 edition Deny nested `async fn` in Rust 2015 edition Deny nested `async fn` in Rust 2015 edition
2019-02-24Rollup merge of #57364 - hdhoang:33418_negative_bounds, r=estebankMazdak Farrokhzad-21/+59
Improve parsing diagnostic for negative supertrait bounds closes #33418 r? @estebank
2019-02-23Rollup merge of #58654 - estebank:underflow, r=nikomatsakisMazdak Farrokhzad-4/+8
Do not underflow after resetting unmatched braces count Fix #58638. r? @oli-obk
2019-02-23Rollup merge of #58476 - nnethercote:rm-LazyTokenStream, r=petrochenkovMazdak Farrokhzad-8/+8
Remove `LazyTokenStream`. `LazyTokenStream` was added in #40939. Perhaps it was an effective optimization then, but no longer. This PR removes it, making the code both simpler and faster. r? @alexcrichton
2019-02-23Improve parsing diagnostic for negative supertrait boundsHoàng Đức Hiếu-21/+59
2019-02-22Do not underflow after resetting unmatched braces countEsteban Küber-4/+8
Fix #58638.
2019-02-22Rollup merge of #58198 - ↵Mazdak Farrokhzad-2/+15
igorsdv:suggest-removing-parentheses-surrounding-lifetimes, r=estebank Suggest removing parentheses surrounding lifetimes Fixes #57386. r? @estebank
2019-02-18Fix style nitsDan Robertson-1/+2
Fix style nits discovered in reading code.
2019-02-18Remove `LazyTokenStream`.Nicholas Nethercote-8/+8
It's present within `Token::Interpolated` as an optimization, so that if a nonterminal is converted to a `TokenStream` multiple times, the first-computed value is saved and reused. But in practice it's not needed. `interpolated_to_tokenstream()` is a cold function: it's only called a few dozen times while compiling rustc itself, and a few hundred times across the entire `rustc-perf` suite. Furthermore, when it is called, it is almost always the first conversion, so no benefit is gained from it. So this commit removes `LazyTokenStream`, along with the now-unnecessary `Token::interpolated()`. As well as a significant simplification, the removal speeds things up slightly, mostly due to not having to `drop` the `LazyTokenStream` instances.
2019-02-13Rollup merge of #58387 - alexreg:fix-trait-alias-2, r=centrilMazdak Farrokhzad-1/+7
Disallow `auto` trait alias syntax See https://github.com/rust-lang/rust/issues/41517#issuecomment-462567679. r? @Centril CC @topecongiro @nikomatsakis
2019-02-13Rollup merge of #58273 - taiki-e:rename-dependency, r=matthewjasperMazdak Farrokhzad-2/+2
Rename rustc_errors dependency in rust 2018 crates I think this is a better solution than `use rustc_errors as errors` in `lib.rs` and `use crate::errors` in modules. Related: rust-lang/cargo#5653 cc #58099 r? @Centril
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