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2016-06-29Fix pretty-printing of lifetime boundSeo Sanghyeon-22/+17
2016-06-26Rollup merge of #34436 - jseyfried:no_block_expr, r=eddybJeffrey Seyfried-21/+21
To allow these braced macro invocation, this PR removes the optional expression from `ast::Block` and instead uses a `StmtKind::Expr` at the end of the statement list. Currently, braced macro invocations in blocks can expand into statements (and items) except when they are last in a block, in which case they can only expand into expressions. For example, ```rust macro_rules! make_stmt { () => { let x = 0; } } fn f() { make_stmt! {} //< This is OK... let x = 0; //< ... unless this line is commented out. } ``` Fixes #34418.
2016-06-26Rollup merge of #34339 - jseyfried:thin_vec, r=petrochenkov,ManishearthJeffrey Seyfried-7/+4
Generalize and abstract `ThinAttributes` to `ThinVec<Attribute>`.
2016-06-26Rollup merge of #34316 - jseyfried:refactor_ast_stmt, r=eddybJeffrey Seyfried-29/+21
Refactor away `ast::Decl`, refactor `ast::Stmt`, and rename `ast::ExprKind::Again` to `ast::ExprKind::Continue`.
2016-06-26Rollup merge of #34385 - cgswords:tstream, r=nrcJeffrey Seyfried-7/+8
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).
2016-06-25Rollup merge of #34403 - jonathandturner:move_liberror, r=alexcrichtonJeffrey Seyfried-11/+13
This PR refactors the 'errors' part of libsyntax into its own crate (librustc_errors). This is the first part of a few refactorings to simplify error reporting and potentially support more output formats (like a standardized JSON output and possibly an --explain mode that can work with the user's code), though this PR stands on its own and doesn't assume further changes. As part of separating out the errors crate, I have also refactored the code position portion of codemap into its own crate (libsyntax_pos). While it's helpful to have the common code positions in a separate crate for the new errors crate, this may also enable further simplifications in the future.
2016-06-25Rollup merge of #34368 - petrochenkov:astqpath, r=ManishearthJeffrey Seyfried-2/+2
The AST part of https://github.com/rust-lang/rust/pull/34365 plugin-[breaking-change] cc https://github.com/rust-lang/rust/issues/31645
2016-06-25Rollup merge of #34213 - josephDunne:trait_item_macros, r=jseyfriedJeffrey Seyfried-0/+11
**syntax-[breaking-change]** cc #31645 New `TraitItemKind::Macro` variant This change adds support for macro expansion inside trait items by adding the new `TraitItemKind::Macro` and associated parsing code.
2016-06-24Add `ecx.stmt_semi()` and fix issues with the pretty-printerJeffrey Seyfried-2/+13
2016-06-23Remove field `expr` of `ast::Block`Jeffrey Seyfried-20/+9
2016-06-23Address more travis errorsJonathan Turner-1/+2
2016-06-23Move errors from libsyntax to its own crateJonathan Turner-11/+12
2016-06-21Refactored tokentrees into their own files in preparation for tokenstreams. ↵cgswords-7/+8
Modified tests to point to the new file now.
2016-06-20Merge PatKind::QPath into PatKind::Path in ASTVadim Petrochenkov-2/+2
2016-06-19Generalize and abstract `ThinAttributes`Jeffrey Seyfried-7/+4
2016-06-18Auto merge of #34310 - erickt:tuple-struct-attrs, r=nrcbors-1/+2
Pretty-print attributes on tuple structs and add tests This adds support to the pretty printer to print attributes added to tuple struct elements. Furthermore, it adds a test that makes sure we will print attributes on all variant data types.
2016-06-17Fix panic when using debugGuillaume Gomez-1/+1
2016-06-17Pretty-print attributes on tuple structs and add testsErick Tryzelaar-1/+2
This adds support to the pretty printer to print attributes added to tuple struct elements. Furthermore, it adds a test that makes sure we will print attributes on all variant data types.
2016-06-17Rename `ast::ExprKind::Again` -> `ast::ExprKind::Continue`Jeffrey Seyfried-1/+1
2016-06-17Fix falloutJeffrey Seyfried-28/+20
2016-06-16Revert using ? for try! in the libsyntax pretty printerErick Tryzelaar-859/+859
The use of ...?instead of try!(...) in libsyntax makes extracting libsyntax into syntex quite painful since it's not stable yet. This makes backports take a much longer time and causes a lot of problems for the syntex dependencies. Even if it was, it'd take a few release cycles until syntex would be able to use it. Since it's not stable and that this feature is just syntax sugar, it would be most helpful if we could remove it. cc #34311
2016-06-15prefer `if let` to match with `None => ()` arm in some placesZack M. Davis-19/+15
Casual grepping revealed some places in the codebase (some of which antedated `if let`'s December 2014 stabilization in c200ae5a) where we were using a match with a `None => ()` arm where (in the present author's opinion) an `if let` conditional would be more readable. (Other places where matching to the unit value did seem to better express the intent were left alone.) It's likely that we don't care about making such trivial, non-functional, sheerly æsthetic changes. But if we do, this is a patch.
2016-06-13Add support for macro expansion inside trait itemsJoseph Dunne-0/+11
2016-05-27Rollup merge of #33644 - petrochenkov:selfast, r=nrcManish Goregaokar-52/+29
The AST part of https://github.com/rust-lang/rust/pull/33505. https://github.com/rust-lang/rust/pull/33505 isn't landed yet, so this PR is based on top of it. r? @nrc plugin-[breaking-change] cc #31645 @Manishearth
2016-05-27Rollup merge of #33639 - petrochenkov:dotdot, r=nmatsakisManish Goregaokar-14/+30
cc https://github.com/rust-lang/rust/issues/33627 r? @nikomatsakis plugin-[breaking-change] cc https://github.com/rust-lang/rust/issues/31645 @Manishearth
2016-05-26Implement `..` in tuple (struct) patternsVadim Petrochenkov-14/+30
2016-05-25Add a new AST-only type variant `ImplicitSelf`Vadim Petrochenkov-0/+3
2016-05-25Remove ExplicitSelf from ASTVadim Petrochenkov-52/+26
2016-05-24syntax/hir: give loop labels a spanGeorg Brandl-4/+4
This makes the "shadowing labels" warning *not* print the entire loop as a span, but only the lifetime. Also makes #31719 go away, but does not fix its root cause (the span of the expanded loop is still wonky, but not used anymore).
2016-05-14syntax: Refactor parsing of method declarationsVadim Petrochenkov-36/+15
Fix spans and expected token lists, fix #33413 + other cosmetic improvements Add test for #33413 Convert between `Arg` and `ExplicitSelf` precisely Simplify pretty-printing for methods
2016-04-25Rollup merge of #33041 - petrochenkov:path, r=nrc,ManishearthManish Goregaokar-20/+10
Paths are mostly parsed without taking whitespaces into account, e.g. `std :: vec :: Vec :: new ()` parses successfully, however, there are some special cases involving keywords `super`, `self` and `Self`. For example, `self::` is considered a path start only if there are no spaces between `self` and `::`. These restrictions probably made sense when `self` and friends weren't keywords, but now they are unnecessary. The first two commits remove this special treatment of whitespaces by removing `token::IdentStyle` entirely and therefore fix https://github.com/rust-lang/rust/issues/14109. This change also affects naked `self` and `super` (which are not tightly followed by `::`, obviously) they can now be parsed as paths, however they are still not resolved correctly in imports (cc @jseyfried, see `compile-fail/use-keyword.rs`), so https://github.com/rust-lang/rust/issues/29036 is not completely fixed. The third commit also makes `super`, `self`, `Self` and `static` keywords nominally (before this they acted as keywords for all purposes) and removes most of remaining \"special idents\". The last commit (before tests) contains some small improvements - some qualified paths with type parameters are parsed correctly, `parse_path` is not used for parsing single identifiers, imports are sanity checked for absence of type parameters - such type parameters can be generated by syntax extensions or by macros when https://github.com/rust-lang/rust/issues/10415 is fixed (~~soon!~~already!). This patch changes some pretty basic things in `libsyntax`, like `token::Token` and the keyword list, so it's a plugin-[breaking-change]. r? @eddyb
2016-04-24Remove some old code from libsyntaxVadim Petrochenkov-2/+2
2016-04-24syntax: Merge keywords and remaining special idents in one listVadim Petrochenkov-4/+3
Simplify the macro used for generation of keywords Make `Keyword::ident` private
2016-04-24syntax: Make static/super/self/Self keywords + special ident cleanupVadim Petrochenkov-1/+1
2016-04-24syntax: Get rid of token::IdentStyleVadim Petrochenkov-14/+5
2016-04-24thread tighter span for closures aroundNiko Matsakis-1/+1
Track the span corresponding to the `|...|` part of the closure.
2016-04-14Add a span to the `Crate` variant of `ast::Visibility`Jeffrey Seyfried-2/+2
2016-04-11std: Stabilize APIs for the 1.9 releaseAlex Crichton-4/+6
This commit applies all stabilizations, renamings, and deprecations that the library team has decided on for the upcoming 1.9 release. All tracking issues have gone through a cycle-long "final comment period" and the specific APIs stabilized/deprecated are: Stable * `std::panic` * `std::panic::catch_unwind` (renamed from `recover`) * `std::panic::resume_unwind` (renamed from `propagate`) * `std::panic::AssertUnwindSafe` (renamed from `AssertRecoverSafe`) * `std::panic::UnwindSafe` (renamed from `RecoverSafe`) * `str::is_char_boundary` * `<*const T>::as_ref` * `<*mut T>::as_ref` * `<*mut T>::as_mut` * `AsciiExt::make_ascii_uppercase` * `AsciiExt::make_ascii_lowercase` * `char::decode_utf16` * `char::DecodeUtf16` * `char::DecodeUtf16Error` * `char::DecodeUtf16Error::unpaired_surrogate` * `BTreeSet::take` * `BTreeSet::replace` * `BTreeSet::get` * `HashSet::take` * `HashSet::replace` * `HashSet::get` * `OsString::with_capacity` * `OsString::clear` * `OsString::capacity` * `OsString::reserve` * `OsString::reserve_exact` * `OsStr::is_empty` * `OsStr::len` * `std::os::unix::thread` * `RawPthread` * `JoinHandleExt` * `JoinHandleExt::as_pthread_t` * `JoinHandleExt::into_pthread_t` * `HashSet::hasher` * `HashMap::hasher` * `CommandExt::exec` * `File::try_clone` * `SocketAddr::set_ip` * `SocketAddr::set_port` * `SocketAddrV4::set_ip` * `SocketAddrV4::set_port` * `SocketAddrV6::set_ip` * `SocketAddrV6::set_port` * `SocketAddrV6::set_flowinfo` * `SocketAddrV6::set_scope_id` * `<[T]>::copy_from_slice` * `ptr::read_volatile` * `ptr::write_volatile` * The `#[deprecated]` attribute * `OpenOptions::create_new` Deprecated * `std::raw::Slice` - use raw parts of `slice` module instead * `std::raw::Repr` - use raw parts of `slice` module instead * `str::char_range_at` - use slicing plus `chars()` plus `len_utf8` * `str::char_range_at_reverse` - use slicing plus `chars().rev()` plus `len_utf8` * `str::char_at` - use slicing plus `chars()` * `str::char_at_reverse` - use slicing plus `chars().rev()` * `str::slice_shift_char` - use `chars()` plus `Chars::as_str` * `CommandExt::session_leader` - use `before_exec` instead. Closes #27719 cc #27751 (deprecating the `Slice` bits) Closes #27754 Closes #27780 Closes #27809 Closes #27811 Closes #27830 Closes #28050 Closes #29453 Closes #29791 Closes #29935 Closes #30014 Closes #30752 Closes #31262 cc #31398 (still need to deal with `before_exec`) Closes #31405 Closes #31572 Closes #31755 Closes #31756
2016-04-06Move span into `StructField`Vadim Petrochenkov-6/+6
2016-04-06Get rid of ast::StructFieldKindVadim Petrochenkov-21/+11
2016-04-02Add `Crate` and `Restricted` variants to `ast::Visibility`Jeffrey Seyfried-0/+5
2016-04-02Make `ast::Visibility` non-copyableJeffrey Seyfried-32/+32
2016-03-22fix alignmentJorge Aparicio-41/+35
2016-03-22try! -> ?Jorge Aparicio-860/+860
Automated conversion using the untry tool [1] and the following command: ``` $ find -name '*.rs' -type f | xargs untry ``` at the root of the Rust repo. [1]: https://github.com/japaric/untry
2016-03-16Auto merge of #31746 - erickt:newline, r=sfacklerbors-1/+2
syntax: Always pretty print a newline after doc comments Before this patch, code that had a doc comment as the first line, as in: ```rust /// Foo struct Foo; ``` Was pretty printed into: ```rust ///Foostruct Foo; ``` This makes sure that that there is always a trailing newline after a doc comment. Closes #31722
2016-03-14Add pretty printer output for `default`Aaron Turon-0/+3
2016-03-07implement the `?` operatorJorge Aparicio-0/+4
The `?` postfix operator is sugar equivalent to the try! macro, but is more amenable to chaining: `File::open("foo")?.metadata()?.is_dir()`. `?` is accepted on any *expression* that can return a `Result`, e.g. `x()?`, `y!()?`, `{z}?`, `(w)?`, etc. And binds more tightly than unary operators, e.g. `!x?` is parsed as `!(x?)`. cc #31436
2016-03-07syntax: Always pretty print a newline after doc commentsErick Tryzelaar-1/+2
Before this patch, code that had a doc comment as the first line, as in: ```rust /// Foo struct Foo; ``` Was pretty printed into: ```rust ///Foostruct Foo; ``` This makes sure that that there is always a trailing newline after a doc comment. Closes #31722
2016-02-27fix fallout from libsyntax enumpocalypseAlex Burka-1/+1
2016-02-27libsyntax: parse inclusive rangesAlex Burka-2/+6
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