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path: root/src/libsyntax/ext/tt/macro_rules.rs
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2019-01-09Change `String` to `&'static str` in `ParseResult::Failure`.Nicholas Nethercote-1/+1
This avoids 770,000 allocations when compiling the `html5ever` benchmark, reducing instruction counts by up to 2%.
2018-12-25Remove licensesMark Rousskov-10/+0
2018-12-07Various minor/cosmetic improvements to codeAlexander Regueiro-6/+6
2018-11-27Auto merge of #55402 - estebank:macro-eof-2, r=nikomatsakisbors-8/+36
Point at end of macro arm when encountering EOF Fix #52866.
2018-11-23Reword EOF in macro arm messageEsteban Küber-1/+4
2018-11-23Keep label on moved spans and point at macro invocation on parse errorEsteban Küber-8/+12
2018-11-23Point at macro arm when it doesn't expand to an expressionEsteban Küber-3/+7
2018-11-23Reword incorrect macro invocation primary labelEsteban Küber-4/+11
2018-11-23Add label when replacing primary DUMMY_SP in macro expansionEsteban Küber-0/+1
2018-11-23Point at end of macro arm when encountering EOFEsteban Küber-0/+9
Fix #52866
2018-11-21macro_literal_matcher: fixes per petrochenkov's reviewDan Aloni-3/+3
2018-11-21Stabilize macro_literal_matcherDan Aloni-18/+13
2018-10-26Auto merge of #54929 - csmoe:cfg_lint, r=petrochenkovbors-1/+1
Suggest to remove prefix `b` in cfg attribute lint string Closes #54926 r? @estebank
2018-10-26Rollup merge of #55358 - sinkuu:redundant_clone2, r=estebankkennytm-2/+1
Remove redundant clone (2)
2018-10-26Rollup merge of #55301 - estebank:macro-allowed, r=petrochenkovkennytm-44/+94
List allowed tokens after macro fragments Fix #34069.
2018-10-26Rollup merge of #55298 - estebank:macro-def, r=pnkfelixkennytm-7/+18
Point at macro definition when no rules expect token Fix #35150.
2018-10-26Rollup merge of #55292 - estebank:macro-eof, r=pnkfelixkennytm-1/+6
Macro diagnostics tweaks Fix #30128, fix #10951 by adding an appropriate span to the diagnostic. Fix #26288 by suggesting adding semicolon to macro call.
2018-10-26Remove redundant cloneShotaro Yamada-2/+1
2018-10-25List allowed tokens after macro fragmentsEsteban Küber-44/+94
2018-10-25Rollup merge of #54977 - estebank:macro-arg-parse, r=pnkfelixPietro Albini-1/+2
Accept `Option<Box<$t:ty>>` in macro argument Given the following code, compile successfuly: ``` macro_rules! test { ( fn fun() -> Option<Box<$t:ty>>; ) => { fn fun(x: $t) -> Option<Box<$t>> { Some(Box::new(x)) } } } test! { fn fun() -> Option<Box<i32>>; } ``` Fix #25274.
2018-10-24Point to macro def span instead of whole bodyEsteban Küber-1/+1
2018-10-23Point at macro definition when no rules expect tokenEsteban Küber-7/+18
2018-10-23Add macro call span when lacking any other span in diagnosticEsteban Küber-1/+6
2018-10-20handle errors based on parse_sesscsmoe-1/+1
2018-10-12Add missing lifetime fragment specifier to error message.Eric Huss-5/+6
A very minor issue, `lifetime` was missing from the error list. I left `literal` in the list, even though it is unstable. It looks like it may stabilize soon anyways.
2018-10-10Accept `Option<Box<$t:ty>>` in macro argumentEsteban Küber-1/+2
Given the following code, compile successfuly: ``` macro_rules! test { ( fn fun() -> Option<Box<$t:ty>>; ) => { fn fun(x: $t) -> Option<Box<$t>> { Some(Box::new(x)) } } } test! { fn fun() -> Option<Box<i32>>; } ```
2018-09-17Whitespace fix again.Vitaly _Vi Shukela-4/+4
2018-09-17Fill in suggestions Applicability according to @estebankVitaly _Vi Shukela-4/+4
Also fix some formatting along the way.
2018-09-16Remove usages of span_suggestion without ApplicabilityVitaly _Vi Shukela-1/+3
Use Applicability::Unspecified for all of them instead.
2018-09-08Track distinct spans for open and close delimiterDavid Tolnay-12/+13
2018-08-28Use FxHash{Map,Set} instead of the default Hash{Map,Set} everywhere in rustc.Eduard-Mihai Burtescu-3/+3
2018-08-19Stabilize macro_vis_matcherJakub Kozlowski-13/+1
2018-08-18Use the new Entry::or_default method where possible.Eduard-Mihai Burtescu-2/+1
2018-08-07Suggest comma when missing in macro callEsteban Küber-2/+2
When missing a comma in a macro call, suggest it, regardless of position. When a macro call doesn't match any of the patterns, check if the call's token stream could be missing a comma between two idents, and if so, create a new token stream containing the comma and try to match against the macro patterns. If successful, emit the suggestion.
2018-08-06Suggest comma when writing `println!("{}" a);`Esteban Küber-1/+26
2018-07-23make it a migration lintmark-0/+2
2018-07-23Fix test and errorsmark-265/+182
2018-07-23Implement 2015 vs 2018 `?` kleene op + testmark-182/+280
2018-07-10Deny bare trait objects in in src/libsyntaxljedrz-2/+2
2018-06-30hygiene: Implement transparent marksVadim Petrochenkov-0/+3
2018-06-30expansion: Give names to some fields of `SyntaxExtension`Vadim Petrochenkov-1/+5
2018-06-27Implement `#[macro_export(local_inner_macros)]`Vadim Petrochenkov-0/+7
2018-06-23expansion: Rename `Expansion` to `AstFragment`Vadim Petrochenkov-5/+5
2018-05-26Add `Ident::as_str` helperVadim Petrochenkov-4/+4
2018-05-20Auto merge of #50855 - nnethercote:fewer-macro_parser-allocs, r=petrochenkovbors-1/+2
Speed up the macro parser These three commits reduce the number of allocations done by the macro parser, in some cases dramatically. For example, for a clean check builds of html5ever, the number of allocations is reduced by 40%. Here are the rustc-benchmarks that are sped up by at least 1%. ``` html5ever-check avg: -6.6% min: -10.3% max: -4.1% html5ever avg: -5.2% min: -9.5% max: -2.8% html5ever-opt avg: -4.3% min: -9.3% max: -1.6% crates.io-check avg: -1.8% min: -2.9% max: -0.6% crates.io-opt avg: -1.0% min: -2.2% max: -0.1% crates.io avg: -1.1% min: -2.2% max: -0.2% ```
2018-05-18Make `Directory::path` a `Cow`.Nicholas Nethercote-1/+2
Because we create a lot of these in the macro parser, but only very rarely modify them. This speeds up some html5ever runs by 2--3%.
2018-05-17Pass crate editions to macro expansions, update testsVadim Petrochenkov-3/+6
2018-05-13stabilize :lifetimeAlex Burka-13/+1
2018-05-13Macros: Add a 'literal' fragment specifierDan Aloni-2/+19
Implements RFC 1576. See: https://github.com/rust-lang/rfcs/blob/master/text/1576-macros-literal-matcher.md Changes are mostly in libsyntax, docs, and tests. Feature gate is enabled for 1.27.0. Many thanks to Vadim Petrochenkov for following through code reviews and suggestions. Example: ````rust macro_rules! test_literal { ($l:literal) => { println!("literal: {}", $l); }; ($e:expr) => { println!("expr: {}", $e); }; } fn main() { let a = 1; test_literal!(a); test_literal!(2); test_literal!(-3); } ``` Output: ``` expr: 1 literal: 2 literal: -3 ```
2018-04-06Remove more duplicated spansVadim Petrochenkov-1/+1
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