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path: root/src/librustc_parse/parser/item.rs
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2020-03-21can_begin_literal_maybe_minus: `true` on `"-"? lit` NTs.Mazdak Farrokhzad-1/+1
2020-03-09Address review commentsVadim Petrochenkov-1/+1
2020-03-09Use `Token::uninterpolate` in couple more places matching on `(Nt)Ident`Vadim Petrochenkov-0/+2
2020-03-09rustc_ast: Introduce `Token::uninterpolate`Vadim Petrochenkov-2/+2
2020-03-09rustc_ast: Introduce `Token::uninterpolated_span`Vadim Petrochenkov-1/+1
2020-03-09rustc_parse: Use `Token::ident` where possibleVadim Petrochenkov-11/+8
2020-03-06Auto merge of #69586 - petrochenkov:unmerge, r=Centrilbors-20/+20
ast: Unmerge structures for associated items and foreign items Follow-up to https://github.com/rust-lang/rust/pull/69194. r? @Centril
2020-03-01ast: Implement `TryFrom<ItemKind>` for associated and foreign itemsVadim Petrochenkov-20/+20
2020-03-01Rollup merge of #69579 - petrochenkov:noprevspan, r=CentrilYuki Okushi-29/+32
parser: Remove `Parser::prev_span` Follow-up to https://github.com/rust-lang/rust/pull/69384. r? @Centril
2020-03-01Auto merge of #69592 - petrochenkov:nosyntax, r=Centrilbors-9/+13
Rename `libsyntax` to `librustc_ast` This was the last rustc crate that wasn't following the `rustc_*` naming convention. Follow-up to https://github.com/rust-lang/rust/pull/67763.
2020-02-29Rename `syntax` to `rustc_ast` in source codeVadim Petrochenkov-9/+13
2020-02-29rustc_parse: Tweak the function parameter name checkVadim Petrochenkov-3/+4
2020-02-29parser: Remove `Parser::prev_span`Vadim Petrochenkov-1/+1
2020-02-29parser: `prev_span` -> `prev_token.span`Vadim Petrochenkov-28/+31
2020-02-28Rollup merge of #69384 - petrochenkov:nounnorm, r=CentrilMazdak Farrokhzad-8/+6
parser: `token` -> `normalized_token`, `nonnormalized_token` -> `token` So, after https://github.com/rust-lang/rust/pull/69006, its follow-ups and an attempt to remove `Parser::prev_span` I came to the conclusion that the unnormalized token and its span is what you want in most cases, so it should be default. Normalization only makes difference in few cases where we are checking against `token::Ident` or `token::Lifetime` specifically. This PR uses `normalized_token` for those cases. Using normalization explicitly means that people writing code should remember about `NtIdent` and `NtLifetime` in general. (That is alleviated by the fact that `token.ident()` and `fn parse_ident_*` are already written.) Remembering about `NtIdent`, was, however, already the case, kind of, because the implicit normalization was performed only for the current/previous token, but not for things like `look_ahead`. As a result, most of token classification methods in `token.rs` already take `NtIdent` into account (this PR fixes a few pre-existing minor mistakes though). The next step is removing `normalized(_prev)_token` entirely and replacing it with `token.ident()` (mostly) and `token.normalize()` (occasionally). I want to make it a separate PR for that and run it though perf. `normalized_token` filled on every bump has both a potential to avoid repeated normalization, and to do unnecessary work in advance (it probably doesn't matter anyway, the normalization is very cheap). r? @Centril
2020-02-26Rollup merge of #69423 - petrochenkov:nont, r=CentrilDylan DPC-8/+0
syntax: Remove `Nt(Impl,Trait,Foreign)Item` Follow-up to https://github.com/rust-lang/rust/pull/69366. r? @Centril
2020-02-24syntax: Remove `Nt(Impl,Trait,Foreign)Item`Vadim Petrochenkov-8/+0
2020-02-24don't explicitly compare against true or falseMatthias Krüger-2/+2
2020-02-24parser: `token` -> `normalized_token`, `nonnormalized_token` -> `token`Vadim Petrochenkov-8/+6
2020-02-24parse: tweak diagnostic wordingsMazdak Farrokhzad-5/+5
2020-02-24parse: tweak `parse_item_` for more reuse.Mazdak Farrokhzad-17/+7
2020-02-24parse/ast: move `Defaultness` into variants.Mazdak Farrokhzad-32/+32
2020-02-24parse: `NtItem` -> `parse_item_common`.Mazdak Farrokhzad-8/+9
2020-02-24parser: tweak item kind wordingMazdak Farrokhzad-11/+9
2020-02-24parser: tweak unmatched wordingMazdak Farrokhzad-5/+6
2020-02-24parser: refactor away at_endMazdak Farrokhzad-9/+3
2020-02-24parse: move token hack into `parse_item_common`.Mazdak Farrokhzad-55/+31
2020-02-24parse: use `parse_item_common` in `parse_assoc_item_`.Mazdak Farrokhzad-144/+72
2020-02-24parse: use `parse_item_common` in `parse_foreign_item`.Mazdak Farrokhzad-28/+53
2020-02-24parse: recover `default` on free items.Mazdak Farrokhzad-13/+46
2020-02-24parse: extract `error_on_unmatched_vis`.Mazdak Farrokhzad-10/+16
2020-02-24ast: add `Defaultness` to `Item`, making `AssocItem` an alias.Mazdak Farrokhzad-3/+4
2020-02-24`parse_defaultness`: avoid hardcoded list of keywords.Mazdak Farrokhzad-26/+13
2020-02-24add `Span` to `ast::Defaultness::Default`.Mazdak Farrokhzad-1/+1
2020-02-22parse: allow `type Foo: Ord` syntactically.Mazdak Farrokhzad-20/+12
2020-02-18Rollup merge of #69211 - petrochenkov:prevtok, r=CentrilMazdak Farrokhzad-3/+4
parser: Simplify treatment of macro variables in `Parser::bump` Follow-up to https://github.com/rust-lang/rust/pull/69006. Token normalization for `$ident` and `$lifetime` is merged directly into `bump`. Special "unknown macro variable" diagnostic for unexpected `$`s is removed as preventing legal code from compiling (as a result `bump` also doesn't call itself recursively anymore and can't make `prev_token` inconsistent). r? @Centril
2020-02-18Rollup merge of #69194 - Centril:assoc-extern-fuse, r=petrochenkovMazdak Farrokhzad-117/+91
parse: fuse associated and extern items up to defaultness Language changes: - The grammar of extern `type` aliases is unified with associated ones, and becomes: ```rust TypeItem = "type" ident generics {":" bounds}? where_clause {"=" type}? ";" ; ``` Semantic restrictions (`ast_validation`) are added to forbid any parameters in `generics`, any bounds in `bounds`, and any predicates in `where_clause`, as well as the presence of a type expression (`= u8`). (Work still remains to fuse this with free `type` aliases, but this can be done later.) - The grammar of constants and static items (free, associated, and extern) now permits the absence of an expression, and becomes: ```rust GlobalItem = {"const" {ident | "_"} | "static" "mut"? ident} {"=" expr}? ";" ; ``` - A semantic restriction is added to enforce the presence of the expression (the body). - A semantic restriction is added to reject `const _` in associated contexts. Together, these changes allow us to fuse the grammar of associated items and extern items up to `default`ness which is the main goal of the PR. ----------------------- We are now very close to fully fusing the entirely of item parsing and their ASTs. To progress further, we must make a decision: should we parse e.g. `default use foo::bar;` and whatnot? Accepting that is likely easiest from a parsing perspective, as it does not require using look-ahead, but it is perhaps not too onerous to only accept it for `fn`s (and all their various qualifiers), `const`s, `static`s, and `type`s. r? @petrochenkov
2020-02-17parser: Set previous and unnormalized tokens in couple more placesVadim Petrochenkov-3/+4
2020-02-15reject assoc statics & extern consts during parsingMazdak Farrokhzad-1/+26
2020-02-15fuse extern & associated item parsing up to defaultnessMazdak Farrokhzad-77/+39
2020-02-15parse extern constsMazdak Farrokhzad-21/+6
2020-02-15parse associated statics.Mazdak Farrokhzad-10/+8
2020-02-15ast/parser: fuse `static` & `const` grammars in all contexts.Mazdak Farrokhzad-16/+21
2020-02-15ast: make `= <expr>;` optional in free statics/consts.Mazdak Farrokhzad-11/+8
2020-02-15ast: normalize `ForeignItemKind::Ty` & `AssocItemKind::TyAlias`.Mazdak Farrokhzad-5/+7
2020-02-15ast: move Generics into AssocItemKindsMazdak Farrokhzad-8/+8
2020-02-15parser: `macro_rules` is a weak keywordVadim Petrochenkov-2/+2
2020-02-13parser: inline parse_assoc_macro_invocMazdak Farrokhzad-20/+10
2020-02-13parser: misc small item related improvements & cleanups.Mazdak Farrokhzad-138/+120
2020-02-13parser: extract `recover_const_mut`.Mazdak Farrokhzad-13/+17
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