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path: root/src/libsyntax/parse/parser.rs
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2018-12-10Remove `tokenstream::Delimited`.Nicholas Nethercote-38/+42
Because it's an extra type layer that doesn't really help; in a couple of places it actively gets in the way, and overall removing it makes the code nicer. It does, however, move `tokenstream::TokenTree` further away from the `TokenTree` in `quote.rs`. More importantly, this change reduces the size of `TokenStream` from 48 bytes to 40 bytes on x86-64, which is enough to slightly reduce instruction counts on numerous benchmarks, the best by 1.5%. Note that `open_tt` and `close_tt` have gone from being methods on `Delimited` to associated methods of `TokenTree`.
2018-12-08Rollup merge of #56248 - estebank:suggest-bare-pub, r=petrochenkovMazdak Farrokhzad-20/+48
Suggest an appropriate token when encountering `pub Ident<'a>` Fix #55403. Follow up to #45997.
2018-12-07Various minor/cosmetic improvements to codeAlexander Regueiro-12/+12
2018-12-06Auto merge of #56392 - petrochenkov:regensym, r=oli-obkbors-14/+13
Delay gensym creation for "underscore items" (`use foo as _`/`const _`) until name resolution So they cannot be cloned by macros. See https://github.com/rust-lang/rust/pull/56303 for the discussion. Mostly fix cross-crate use of underscore items by inverting the "gensyms are lost in metadata" bug as described in https://github.com/rust-lang/rust/pull/56303#issuecomment-442464695. Fix unused import warnings for single-segment imports (first commit) and `use crate_name as _` imports (as specified in https://github.com/rust-lang/rust/pull/56303#issuecomment-442274118). Prohibit accidentally implemented `static _: TYPE = EXPR;` (cc https://github.com/rust-lang/rust/pull/55983). Add more tests for `use foo as _` imports.
2018-12-04Address review commentsVadim Petrochenkov-2/+2
2018-12-04syntax: Rename some keywordsVadim Petrochenkov-3/+3
`CrateRoot` -> `PathRoot`, `::` doesn't necessarily mean crate root now `SelfValue` -> `SelfLower`, `SelfType` -> `SelfUpper`, both `self` and `Self` can be used in type and value namespaces now
2018-12-03Rollup merge of #56433 - yui-knk:update_comment_of_parse_visibility, ↵kennytm-3/+4
r=petrochenkov Add description about `crate` for parse_visibility's comment This rule was introduced by https://github.com/rust-lang/rust/pull/45401.
2018-12-03Rollup merge of #56419 - mark-i-m:remove-try, r=Centrilkennytm-4/+2
Remove some uses of try!
2018-12-02Delay gensym creation for "underscore items" until name resolutionVadim Petrochenkov-14/+13
Prohibit `static _` Fis unused import warnings for `use foo as _` Add more tests for `use foo as _`
2018-12-02Fix "line longer than 100 chars"yui-knk-3/+4
2018-12-02Add description about `crate` for parse_visibility's commentyui-knk-1/+1
This rule was introduced by https://github.com/rust-lang/rust/pull/45401.
2018-12-01remove some uses of try!Mark Mansi-4/+2
2018-12-01resolve: Support aliasing local crate root in extern preludeVadim Petrochenkov-1/+5
2018-11-30Use appropriate terminology based on heuristicEsteban Küber-13/+24
2018-11-30Suggest an appropriate token when encountering `pub Ident<'a>`Esteban Küber-11/+28
2018-12-01Rollup merge of #56336 - nnethercote:clean-up-pp, r=nikomatsakiskennytm-1/+1
Clean up and streamline the pretty-printer Some minor improvements.
2018-11-29Rollup merge of #56330 - estebank:cleanup-span, r=zackmdavisGuillaume Gomez-2/+2
Clean up span in non-trailing `..` suggestion
2018-11-29Rollup merge of #56220 - estebank:suggest-lifetime-move, r=nikomatsakisGuillaume Gomez-8/+45
Suggest appropriate place for lifetime when declared after type arguments
2018-11-29Use `Cow` in `Token::String`.Nicholas Nethercote-1/+1
`Printer::word` takes a `&str` and converts it into a `String`, which causes an allocation. But that allocation is rarely necessary, because `&str` is almost always a `&'static str` or a `String` that won't be used again. This commit changes `Token::String` so it holds a `Cow<'static, str>` instead of a `String`, which avoids a lot of allocations.
2018-11-28Clean up span in non-trailing `..` suggestionEsteban Küber-2/+2
2018-11-26Specify suggestion applicabilityEsteban Küber-1/+2
2018-11-27resolve: Implement edition hygiene for imports and absolute pathsVadim Petrochenkov-16/+13
Use per-span hygiene in a few other places in resolve Prefer `rust_2015`/`rust_2018` helpers to comparing editions
2018-11-26Emit one diagnostic for multiple misplaced lifetimesEsteban Küber-12/+19
2018-11-25Move lifetimes before the *first* type argumentEsteban Küber-1/+3
2018-11-25Suggest appropriate place for lifetime when declared after type argumentsEsteban Küber-8/+35
2018-11-22Rollup merge of #56002 - Axary:master, r=estebankGuillaume Gomez-2/+13
fix #55972: Erroneous self arguments on bare functions emit subpar compilation error #55972 r? @estebank
2018-11-20improve error noteAxary-1/+1
2018-11-16fix tidy (remove whitespace)Axary-1/+1
2018-11-16improve error when self is used as not the first argumentAxary-8/+9
2018-11-16add a note to the error messageAxary-1/+4
2018-11-16eat CloseDelimAxary-2/+9
2018-11-14Clean up some non-mod-rs stuff.Eric Huss-10/+1
2018-11-12Change `Lit::short_name` to `Lit::literal_name`.Nicholas Nethercote-1/+1
This avoids a moderately hot allocation in `parse_lit_token`.
2018-11-08Rollup merge of #55777 - nnethercote:less-P-in-ast, r=petrochenkovMark Rousskov-1/+1
Use `Lit` rather than `P<Lit>` in `ast::ExprKind`. Because it results in fewer allocations and small speedups on some benchmarks.
2018-11-08Use `Lit` rather than `P<Lit>` in `ast::ExprKind`.Nicholas Nethercote-1/+1
Because it results in fewer allocations and small speedups on some benchmarks.
2018-11-07Rollup merge of #55734 - teresy:shorthand-fields, r=davidtwcokennytm-1/+1
refactor: use shorthand fields refactor: use shorthand for single fields everywhere (excluding tests).
2018-11-06refactor: use shorthand fieldsteresy-1/+1
2018-11-05Auto merge of #55451 - estebank:arg-doc, r=pnkfelixbors-16/+61
Custom diagnostic when trying to doc comment argument When writing ``` pub fn f( /// Comment id: u8, ) {} ``` Produce a targeted diagnostic ``` error: documentation comments cannot be applied to method arguments --> $DIR/fn-arg-doc-comment.rs:2:5 | LL | /// Comment | ^^^^^^^^^^^ doc comments are not allowed here ``` Fix #54801.
2018-11-04Auto merge of #55455 - estebank:expected-descr, r=michaelwoeristerbors-24/+26
Use token description in "expected/found" parse messages Fix #54309.
2018-11-03Extended elaboration for trait aliases to include arbitrary bounds.Alexander Regueiro-5/+5
2018-11-03Added support for trait aliases as object types.Alexander Regueiro-1/+1
2018-10-29Fix regressionEsteban Küber-1/+1
2018-10-28Use token description in "expected/found" parse messagesEsteban Küber-23/+25
2018-10-28Provide specific label for patern parsing errorEsteban Küber-18/+24
2018-10-28Point at `match` when a parse failure ocurrs inside of itEsteban Küber-1/+5
2018-10-28Produce targeted diagnostic when using doc comments on fn argsEsteban Küber-1/+36
Before parsing argument names and types, try to consume an incorrectly included doc comment or attribute in order to recover and continue parsing the rest of the fn definition.
2018-10-28Auto merge of #55192 - cramertj:nested-mod, r=petrochenkovbors-0/+11
Fix ordering of nested modules in non-mod.rs mods Flatten relative offset into directory path before adding inline (mod x { ... }) module names to the current directory path. Fix #55094
2018-10-26rebasing and reviewer changesNick Cameron-1/+1
Primarily refactoring `(Ident, Option<NodeId>)` to `Segment`
2018-10-26Give each PathSegment a NodeIdNick Cameron-2/+2
2018-10-19Prefer unwrap_or_else to unwrap_or in case of function calls/allocationsljedrz-1/+1
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