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path: root/src/libsyntax/ext/tt/transcribe.rs
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2018-12-25Remove licensesMark Rousskov-10/+0
2018-12-12Rename `TokenStream::concat` and remove `TokenStream::concat_rc_vec`.Nicholas Nethercote-2/+2
`TokenStream::new` is a better name for the former, and the latter is now just equivalent to `TokenStream::Stream`.
2018-12-10Remove `tokenstream::Delimited`.Nicholas Nethercote-5/+6
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`.
2018-10-26Remove redundant cloneShotaro Yamada-2/+2
2018-09-26Remove OneVectorljedrz-2/+2
2018-09-08Track distinct spans for open and close delimiterDavid Tolnay-7/+7
2018-08-28Use FxHash{Map,Set} instead of the default Hash{Map,Set} everywhere in rustc.Eduard-Mihai Burtescu-6/+6
2018-08-23Use optimized SmallVec implementationIgor Gutorov-1/+1
2018-08-13Move SmallVec and ThinVec out of libsyntaxljedrz-2/+2
2018-04-06Use `Span::apply_mark` where possibleVadim Petrochenkov-3/+3
2018-04-06Use `Span` instead of `SyntaxContext` in `Ident`Vadim Petrochenkov-1/+1
2018-03-22Clean up raw identifier handling when recovering tokens from AST.Lymia Aluysia-1/+1
2018-03-18Initial implementation of RFC 2151, Raw IdentifiersLymia Aluysia-1/+1
2018-03-02Replace Rc with Lrc for shared dataJohn Kåre Alsaker-3/+4
2017-08-30Make fields of `Span` privateVadim Petrochenkov-3/+3
2017-06-26Add `LazyTokenStream`.Jeffrey Seyfried-1/+1
2017-06-26Simplify `hygiene::Mark` application, andJeffrey Seyfried-26/+34
remove variant `Token::SubstNt` in favor of `quoted::TokenTree::MetaVar`.
2017-06-08Speed up expansion.Mark Simulacrum-8/+9
This reduces duplication, thereby increasing expansion speed.
2017-05-12Fix some clippy warnings in libsyntaxAndre Bogus-3/+3
This is mostly removing stray ampersands, needless returns and lifetimes.
2017-03-30Improve `Path` spans.Jeffrey Seyfried-8/+1
2017-03-03Integrate `TokenStream`.Jeffrey Seyfried-16/+20
2017-02-28Merge `repeat_idx` and `repeat_len`.Jeffrey Seyfried-17/+15
2017-02-28Remove `Token::MatchNt`.Jeffrey Seyfried-3/+4
2017-02-28Add `syntax::ext::tt::quoted::{TokenTree, ..}` and remove ↵Jeffrey Seyfried-34/+17
`tokenstream::TokenTree::Sequence`.
2017-02-28Avoid `Token::{OpenDelim, CloseDelim}`.Jeffrey Seyfried-16/+22
2017-02-28Remove `ext::tt::transcribe::tt_next_token`.Jeffrey Seyfried-149/+124
2017-02-28Clean up `ext::tt::transcribe::TtFrame`, rename to `Frame`.Jeffrey Seyfried-57/+84
2017-02-28Remove a `loop` in `ext::tt::transcribe`.Jeffrey Seyfried-32/+23
2017-01-17Avoid interpolated token trees.Jeffrey Seyfried-1/+2
2017-01-17Clean up `ext::tt::transcribe`.Jeffrey Seyfried-63/+33
2017-01-17Refactor the parser to consume token trees.Jeffrey Seyfried-4/+7
2016-11-04Remove field `TtReader::next_tok`.Jeffrey Seyfried-5/+0
2016-11-03Move doc comment desugaring into the parser.Jeffrey Seyfried-27/+1
2016-11-03Revert "macros: Improve `tt` fragments"Jeffrey Seyfried-13/+3
This reverts commit 41745f30f751364bdce14428b7d3ffa5dd028903.
2016-11-03Reduce the size of `Token` and make it cheaper to clone by refactoringJeffrey Seyfried-13/+11
`Token::Interpolated(Nonterminal)` -> `Token::Interpolated(Rc<Nonterminal>)`.
2016-10-25Use `SmallVector` for `TtReader::stack`.Nicholas Nethercote-3/+4
This avoids 800,000 heap allocations when compiling html5ever. It requires tweaking `SmallVector` a little.
2016-10-19Improve `$crate`.Jeffrey Seyfried-29/+2
2016-10-17Fix partially consumed tokens in macro matchers.Jeffrey Seyfried-0/+5
2016-08-07Make metavariables hygienic.Jeffrey Seyfried-5/+5
2016-07-23macros: Improve `tt` fragmentsJeffrey Seyfried-3/+13
2016-07-06Auto merge of #34652 - jseyfried:fix_expansion_perf, r=nrcbors-2/+2
Fix expansion performance regression **syntax-[breaking-change] cc #31645** This fixes #34630 by reverting commit 5bf7970 of PR #33943, which landed in #34424. By removing the `Rc<_>` wrapping around `Delimited` and `SequenceRepetition` in `TokenTree`, 5bf7970 made cloning `TokenTree`s more expensive. While this had no measurable performance impact on the compiler's crates, it caused an order of magnitude performance regression on some macro-heavy code in the wild. I believe this is due to clones of `TokenTree`s in `macro_parser.rs` and/or `macro_rules.rs`. r? @nrc
2016-07-04Revert "Change `fold_tt` and `fold_tts` to take token trees by value ↵Jeffrey Seyfried-2/+2
(instead of by reference)" This reverts commit 5bf7970ac70b4e7781e7b2f3816720aa62fac6fd.
2016-07-03prefer `if let` to match with `None => {}` arm in some placesZack M. Davis-6/+3
This is a spiritual succesor to #34268/8531d581, in which we replaced a number of matches of None to the unit value with `if let` conditionals where it was judged that this made for clearer/simpler code (as would be recommended by Manishearth/rust-clippy's `single_match` lint). The same rationale applies to matches of None to the empty block.
2016-06-26Rollup merge of #33943 - jseyfried:libsyntax_cleanup, r=nrcJeffrey Seyfried-2/+2
Miscellaneous low priority cleanup in `libsyntax`.
2016-06-26Rollup merge of #34385 - cgswords:tstream, r=nrcJeffrey Seyfried-7/+7
syntax-[breaking-change] cc #31645 (Only breaking because ast::TokenTree is now tokenstream::TokenTree.) This pull request refactors TokenTrees into their own file as src/libsyntax/tokenstream.rs, moving them out of src/libsyntax/ast.rs, in order to prepare for an accompanying TokenStream implementation (per RFC 1566).
2016-06-23Move errors from libsyntax to its own crateJonathan Turner-1/+1
2016-06-21Refactored tokentrees into their own files in preparation for tokenstreams. ↵cgswords-7/+7
Modified tests to point to the new file now.
2016-06-14Change `fold_tt` and `fold_tts` to take token trees by value (instead of by ↵Jeffrey Seyfried-2/+2
reference)
2016-04-27Make some fatal lexer errors recoverablemitaa-1/+3
2016-04-24syntax: Get rid of token::IdentStyleVadim Petrochenkov-6/+6
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