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2022-10-10Rollup merge of #101789 - gimbles:let, r=estebankMatthias Krüger-1/+17
`let`'s not needed in struct field definitions Fixes #101683
2022-10-10Fix compiler docsGuillaume Gomez-1/+2
2022-10-10`let` is not allowed in struct field definitionsgimbles-1/+17
Co-authored-by: jyn514 <jyn514@gmail.com> Co-authored-by: Esteban Kuber <estebank@users.noreply.github.com>
2022-10-10Rollup merge of #102345 - chenyukang:fix-102182-impl-trait, r=estebankYuki Okushi-2/+34
Recover from impl Trait in type param bound Fixes #102182 r? ``@estebank``
2022-10-08Stabilize half_open_range_patternsUrgau-1/+0
2022-10-08fix #102182, recover from impl Trait in type param boundyukang-2/+34
2022-10-03Invert `is_top_level` to avoid negation.Nicholas Nethercote-5/+5
2022-10-03Remove `TokenStreamBuilder`.Nicholas Nethercote-37/+20
It's now only used in one function. Also, the "should we glue the tokens?" check is only necessary when pushing a `TokenTree::Token`, not when pushing a `TokenTree::Delimited`. As part of this, we now do the "should we glue the tokens?" check immediately, which avoids having look back at the previous token. It also puts all the logic dealing with token gluing in a single place.
2022-10-03Inline and remove `parse_token_tree_non_delim_non_eof`.Nicholas Nethercote-16/+14
It has a single call site.
2022-10-03Merge `parse_token_trees_until_close_delim` and `parse_all_token_trees`.Nicholas Nethercote-24/+17
Because they're very similar, and this will allow some follow-up changes.
2022-10-03Add comments to `TokenCursor::desugar`.Nicholas Nethercote-1/+5
It took me some time to work out what this code was doing.
2022-10-01Rollup merge of #102500 - compiler-errors:parse-sess-cleanup, r=cjgillotMatthias Krüger-3/+5
Remove `expr_parentheses_needed` from `ParseSess` Not sure why this method needed to exist on `ParseSess`, but we can achieve the same behavior by just inlining it everywhere.
2022-10-01Replace some `bool` params with an enumMaybe Waffle-44/+52
2022-10-01Recover wrong cased keywords starting functionsMaybe Waffle-48/+67
2022-10-01recover wrong-cased `use`s (`Use`, `USE`, etc)Maybe Waffle-3/+49
2022-09-30Rollup merge of #102493 - nnethercote:improve-size-assertions-some-more, r=lqdMatthias Krüger-8/+10
Group together more size assertions. Also add a few more assertions for some relevant token-related types. And fix an erroneous comment in `rustc_errors`. r? `@lqd`
2022-10-01Group together more size assertions.Nicholas Nethercote-8/+10
Also add a few more assertions for some relevant token-related types. And fix an erroneous comment in `rustc_errors`.
2022-09-30Rollup merge of #102350 - TaKO8Ki:incomplete-fn-in-struct-definition, ↵Matthias Krüger-11/+17
r=fee1-dead Improve errors for incomplete functions in struct definitions Given the following code: ```rust fn main() {} struct Foo { fn } ``` [playground](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=29139f870511f6918324be5ddc26c345) The current output is: ``` Compiling playground v0.0.1 (/playground) error: functions are not allowed in struct definitions --> src/main.rs:4:5 | 4 | fn | ^^ | = help: unlike in C++, Java, and C#, functions are declared in `impl` blocks = help: see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information error: could not compile `playground` due to previous error ``` In this case, rustc should suggest escaping `fn` to use it as an identifier.
2022-09-30Remove expr_parentheses_needed from ParseSessMichael Goulet-3/+5
2022-09-29improve E0585 helpRageking8-2/+2
2022-09-28Auto merge of #101619 - Xiretza:rustc_parse-session-diagnostics, r=davidtwcobors-1253/+1749
Migrate more of rustc_parse to SessionDiagnostic Still far from complete, but I thought I'd add a checkpoint here because rebasing was starting to get annoying.
2022-09-28Auto merge of #102302 - nnethercote:more-lexer-improvements, r=matkladbors-398/+386
More lexer improvements A follow-up to #99884. r? `@matklad`
2022-09-28Address review comments.Nicholas Nethercote-8/+8
2022-09-27Rollup merge of #102284 - compiler-errors:missing-type-in-raw-ptr, r=davidtwcoMatthias Krüger-4/+7
Structured suggestion for missing `mut`/`const` in raw pointer Fixes #102261
2022-09-27Implement IntoDiagnosticArg for rustc_ast::token::Token(Kind)Xiretza-56/+51
2022-09-27Don't unnecessarily stringify paths in diagnosticsXiretza-12/+13
2022-09-27Document use of Symbol::to_string()Xiretza-0/+2
2022-09-27Migrate even more diagnostics in rustc_parse to diagnostic structsXiretza-213/+342
2022-09-27Migrate "struct literal body without path" error to diagnostic structXiretza-16/+29
2022-09-27Migrate "expected semicolon" diagnostics to diagnostic structsXiretza-16/+72
2022-09-27Migrate "expected identifier" diagnostics to diagnostic structsXiretza-43/+154
2022-09-27Rework "inner attribute not permitted" errorsXiretza-58/+58
2022-09-27Remove error condition in parse_attributeXiretza-25/+12
This function is only ever called when the `#` has already been consumed, no need to produce an error message here.
2022-09-27Migrate more rustc_parse diagnostics to diagnostic structsXiretza-155/+156
2022-09-27Move rustc_parse diagnostic structs to separate moduleXiretza-811/+819
2022-09-27Migrate "invalid literal suffix" diagnostic to diagnostic structsXiretza-47/+56
2022-09-27Migrate more diagnostics in rustc_parse to diagnostic structsXiretza-218/+402
2022-09-28improve errors for incomplete functions in struct definitionsTakayuki Maeda-11/+17
2022-09-27Structured suggestion for missing mut/const in pointerMichael Goulet-4/+7
2022-09-27Rename some variables.Nicholas Nethercote-10/+10
These make the delimiter processing clearer.
2022-09-27add a label to struct/enum/union ident nameTakayuki Maeda-10/+26
2022-09-27create a new local varTakayuki Maeda-5/+3
2022-09-27Minor improvements.Nicholas Nethercote-3/+5
Add some comments, and mark one path as unreachable.
2022-09-26Rollup merge of #102286 - compiler-errors:recover-semi-in-block-item, ↵Matthias Krüger-7/+30
r=davidtwco Recover some items that expect braces and don't take semicolons Fixes #102262
2022-09-26remove cfg(bootstrap)Pietro Albini-1/+0
2022-09-26Auto merge of #102297 - fee1-dead-contrib:rollup-2np0cre, r=fee1-deadbors-0/+17
Rollup of 5 pull requests Successful merges: - #102143 (Recover from struct nested in struct) - #102178 (bootstrap: the backtrace feature is stable, no need to allow it any more) - #102197 (Stabilize const `BTree{Map,Set}::new`) - #102267 (Don't set RUSTC in the bootstrap build script) - #102270 (Remove benches from `rustc_middle`) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
2022-09-26Inline and remove `cook_lexer_token`.Nicholas Nethercote-171/+174
This is a small performance win, alas.
2022-09-26Add `rustc_lexer::TokenKind::Eof`.Nicholas Nethercote-8/+2
For alignment with `rust_ast::TokenKind::Eof`. Plus it's a bit faster, due to less `Option` manipulation in `StringReader::next_token`.
2022-09-26Use less DRY in `cook_lexer_token`.Nicholas Nethercote-19/+19
This is a case where a small amount of repetition results in code that is faster and easier to read.
2022-09-26Make `rustc_lexer::cursor::Cursor` public.Nicholas Nethercote-10/+13
`Cursor` is currently hidden, and the main tokenization path uses `rustc_lexer::first_token` which involves constructing a new `Cursor` for every single token, which is weird. Also, `first_token` also can't handle empty input, so callers have to check for that first. This commit makes `Cursor` public, so `StringReader` can contain a `Cursor`, which results in a simpler structure. The commit also changes `StringReader::advance_token` so it returns an `Option<Token>`, simplifying the the empty input case.
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