- 27 10月, 2016 30 次提交
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由 bors 提交于
Deprecate no_debug and custom_derive r? @nikomatsakis
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由 bors 提交于
Implement field shorthands in struct literal expressions. Implements #37340 in a straight-forward way: `Foo { x, y: f() }` parses as `Foo { x: x, y: f() }`. Because of the added `is_shorthand` to `ast::Field`, this is `[syntax-breaking]` (cc @Manishearth). * [x] Mark the fields as being a shorthand (the exact same way we do it in patterns), for pretty-printing. * [x] Gate the shorthand syntax with `#![feature(field_init_shorthand)]`. * [x] Don't parse numeric field as identifiers. * [x] Arbitrary field order tests. -
由 Nick Cameron 提交于
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由 Eduard Burtescu 提交于
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由 Nick Cameron 提交于
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由 Nick Cameron 提交于
Has a custom deprecation since deprecating features is not supported and is a pain to implement
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由 Nick Cameron 提交于
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由 Nick Cameron 提交于
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由 bors 提交于
Rollup of 7 pull requests - Successful merges: #36206, #37144, #37391, #37394, #37396, #37398, #37414 - Failed merges:
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由 Guillaume Gomez 提交于
Fix typo in libsyntax, it was bothering me May I present - the world's shortest diff.
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由 Guillaume Gomez 提交于
Fix typo
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由 Guillaume Gomez 提交于
Make error E0221 more helpful fix #35970 as part of #35233 r? @jonathandturner
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由 Guillaume Gomez 提交于
Add identifier to unused import warnings Fix #37376. For some reason, though, I'm getting warnings with messages like "76:9: 76:16: unused import: `self::g`" instead of "unused import: `self::g`". @pnkfelix Any ideas what might be causing this?
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由 Guillaume Gomez 提交于
Broken links in Vec docs Fixed some issues with quote/bracket nesting and made quoting more consistent. r? @steveklabnik
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由 Guillaume Gomez 提交于
save_analysis: Dump data only if get_path_data doesn't fail to resolve a path. Solves #37126 Dump data only if `get_path_data` doesn't fail to resolve a path. `get_path_data` returns `None` when it have to deals with `Def::Err`, which is used as placeholder for a failed resolution. Tell me if this is good enough, maybe I have to add some tests ? r? @nrc
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由 Ariel Ben-Yehuda 提交于
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由 Ariel Ben-Yehuda 提交于
nested slice patterns have the same functionality as non-nested ones, so flatten them in HAIR construction. Fixes #26158.
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由 Ariel Ben-Yehuda 提交于
Convert byte literal pattern to byte array patterns when they are both used together. so matching them is properly handled. I could've done the conversion eagerly, but that could have caused a bad worst-case for massive byte-array matches. Fixes #18027. Fixes #25051. Fixes #26510.
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由 Ariel Ben-Yehuda 提交于
NaN checking was a lint for a deprecated feature. It can go away.
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由 Ariel Ben-Yehuda 提交于
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由 Ariel Ben-Yehuda 提交于
no intended functional changes
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由 Ariel Ben-Yehuda 提交于
Fixes #35609.
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由 Ariel Ben-Yehuda 提交于
`check_match` is now left with its grab bag of random checks.
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由 Ariel Ben-Yehuda 提交于
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由 Ariel Ben-Yehuda 提交于
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由 Ariel Ben-Yehuda 提交于
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由 Ariel Ben-Yehuda 提交于
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由 Ariel Ben-Yehuda 提交于
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由 bors 提交于
Implement Iterator::fold for .chain(), .cloned(), .map() and the VecDeque iterators. Chain can do something interesting here where it passes on the fold into its inner iterators. The lets the underlying iterator's custom fold() be used, and skips the regular chain logic in next. Also implement .fold() specifically for .map() and .cloned() so that any inner fold improvements are available through map and cloned. The same way, a VecDeque iterator fold can be turned into two slice folds. These changes lend the power of the slice iterator's loop codegen to VecDeque, and to chains of slice iterators, and so on. It's an improvement for .sum() and .product(), and other uses of fold.
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- 26 10月, 2016 10 次提交
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由 bors 提交于
Small improvement to SipHasher Very small but constant improvement, the objective is to lower latency for u16, u32 and small strings. CC #35735 ``` ➜ siphash-bench git:(master) ✗ sudo nice -n -20 target/release/foo-648738a54f390643 --bench | tee benches.txt [sudo] password for arthurprs: running 62 tests test _same ... bench: 0 ns/iter (+/- 0) test _warmup ... bench: 0 ns/iter (+/- 0) test rust_siphash13::int_u16 ... bench: 12 ns/iter (+/- 1) test rust_siphash13::int_u32 ... bench: 14 ns/iter (+/- 0) test rust_siphash13::int_u64 ... bench: 11 ns/iter (+/- 1) test rust_siphash13::int_u8 ... bench: 11 ns/iter (+/- 1) test rust_siphash13::slice::_10 ... bench: 18 ns/iter (+/- 1) test rust_siphash13::slice::_100 ... bench: 42 ns/iter (+/- 2) test rust_siphash13::slice::_11 ... bench: 19 ns/iter (+/- 1) test rust_siphash13::slice::_12 ... bench: 21 ns/iter (+/- 3) test rust_siphash13::slice::_2 ... bench: 16 ns/iter (+/- 2) test rust_siphash13::slice::_200 ... bench: 68 ns/iter (+/- 3) test rust_siphash13::slice::_3 ... bench: 17 ns/iter (+/- 3) test rust_siphash13::slice::_4 ... bench: 18 ns/iter (+/- 1) test rust_siphash13::slice::_5 ... bench: 19 ns/iter (+/- 4) test rust_siphash13::slice::_6 ... bench: 19 ns/iter (+/- 1) test rust_siphash13::slice::_7 ... bench: 20 ns/iter (+/- 1) test rust_siphash13::slice::_8 ... bench: 16 ns/iter (+/- 1) test rust_siphash13::slice::_9 ... bench: 18 ns/iter (+/- 2) test rust_siphash13::str_::_10 ... bench: 18 ns/iter (+/- 1) test rust_siphash13::str_::_100 ... bench: 41 ns/iter (+/- 2) test rust_siphash13::str_::_11 ... bench: 19 ns/iter (+/- 1) test rust_siphash13::str_::_12 ... bench: 20 ns/iter (+/- 2) test rust_siphash13::str_::_2 ... bench: 16 ns/iter (+/- 1) test rust_siphash13::str_::_200 ... bench: 68 ns/iter (+/- 3) test rust_siphash13::str_::_3 ... bench: 17 ns/iter (+/- 1) test rust_siphash13::str_::_4 ... bench: 18 ns/iter (+/- 2) test rust_siphash13::str_::_5 ... bench: 19 ns/iter (+/- 6) test rust_siphash13::str_::_6 ... bench: 20 ns/iter (+/- 5) test rust_siphash13::str_::_7 ... bench: 23 ns/iter (+/- 1) test rust_siphash13::str_::_8 ... bench: 15 ns/iter (+/- 1) test rust_siphash13::str_::_9 ... bench: 17 ns/iter (+/- 1) test sip1b::int_u16 ... bench: 10 ns/iter (+/- 1) test sip1b::int_u32 ... bench: 9 ns/iter (+/- 1) test sip1b::int_u64 ... bench: 12 ns/iter (+/- 1) test sip1b::int_u8 ... bench: 7 ns/iter (+/- 0) test sip1b::slice::_10 ... bench: 12 ns/iter (+/- 1) test sip1b::slice::_100 ... bench: 33 ns/iter (+/- 2) test sip1b::slice::_11 ... bench: 13 ns/iter (+/- 0) test sip1b::slice::_12 ... bench: 12 ns/iter (+/- 1) test sip1b::slice::_2 ... bench: 10 ns/iter (+/- 0) test sip1b::slice::_200 ... bench: 62 ns/iter (+/- 2) test sip1b::slice::_3 ... bench: 10 ns/iter (+/- 1) test sip1b::slice::_4 ... bench: 9 ns/iter (+/- 0) test sip1b::slice::_5 ... bench: 10 ns/iter (+/- 1) test sip1b::slice::_6 ... bench: 10 ns/iter (+/- 0) test sip1b::slice::_7 ... bench: 11 ns/iter (+/- 0) test sip1b::slice::_8 ... bench: 11 ns/iter (+/- 1) test sip1b::slice::_9 ... bench: 12 ns/iter (+/- 1) test sip1b::str_::_10 ... bench: 15 ns/iter (+/- 1) test sip1b::str_::_100 ... bench: 37 ns/iter (+/- 3) test sip1b::str_::_11 ... bench: 16 ns/iter (+/- 1) test sip1b::str_::_12 ... bench: 14 ns/iter (+/- 1) test sip1b::str_::_2 ... bench: 13 ns/iter (+/- 1) test sip1b::str_::_200 ... bench: 67 ns/iter (+/- 5) test sip1b::str_::_3 ... bench: 14 ns/iter (+/- 2) test sip1b::str_::_4 ... bench: 12 ns/iter (+/- 1) test sip1b::str_::_5 ... bench: 13 ns/iter (+/- 1) test sip1b::str_::_6 ... bench: 13 ns/iter (+/- 0) test sip1b::str_::_7 ... bench: 16 ns/iter (+/- 1) test sip1b::str_::_8 ... bench: 14 ns/iter (+/- 1) test sip1b::str_::_9 ... bench: 15 ns/iter (+/- 1) test result: ok. 0 passed; 0 failed; 0 ignored; 62 measured ➜ siphash-bench git:(master) ✗ cargo benchcmp rust_siphash13:: sip1b:: benches.txt name rust_siphash13:: ns/iter sip1b:: ns/iter diff ns/iter diff % int_u16 12 10 -2 -16.67% int_u32 14 9 -5 -35.71% int_u64 11 12 1 9.09% int_u8 11 7 -4 -36.36% slice::_10 18 12 -6 -33.33% slice::_100 42 33 -9 -21.43% slice::_11 19 13 -6 -31.58% slice::_12 21 12 -9 -42.86% slice::_2 16 10 -6 -37.50% slice::_200 68 62 -6 -8.82% slice::_3 17 10 -7 -41.18% slice::_4 18 9 -9 -50.00% slice::_5 19 10 -9 -47.37% slice::_6 19 10 -9 -47.37% slice::_7 20 11 -9 -45.00% slice::_8 16 11 -5 -31.25% slice::_9 18 12 -6 -33.33% str_::_10 18 15 -3 -16.67% str_::_100 41 37 -4 -9.76% str_::_11 19 16 -3 -15.79% str_::_12 20 14 -6 -30.00% str_::_2 16 13 -3 -18.75% str_::_200 68 67 -1 -1.47% str_::_3 17 14 -3 -17.65% str_::_4 18 12 -6 -33.33% str_::_5 19 13 -6 -31.58% str_::_6 20 13 -7 -35.00% str_::_7 23 16 -7 -30.43% str_::_8 15 14 -1 -6.67% str_::_9 17 15 -2 -11.76% ``` from a modified hash-rs suite (preallocating maps and adding having slice/str variants) graph version: http://imgur.com/a/DuoI4 ``` ➜ hash-rs git:(rfc-extend-hasher) ✗ cargo benchcmp sip13:: sip13opt:: benches.txt name sip13:: ns/iter sip13opt:: ns/iter diff ns/iter diff % slice::mapcountdense_000000001 27,343 (36 MB/s) 26,401 (37 MB/s) -942 -3.45% slice::mapcountdense_000000002 28,982 (69 MB/s) 26,807 (74 MB/s) -2,175 -7.50% slice::mapcountdense_000000003 29,304 (102 MB/s) 27,360 (109 MB/s) -1,944 -6.63% slice::mapcountdense_000000004 30,411 (131 MB/s) 25,888 (154 MB/s) -4,523 -14.87% slice::mapcountdense_000000005 32,625 (153 MB/s) 27,486 (181 MB/s) -5,139 -15.75% slice::mapcountdense_000000006 34,920 (171 MB/s) 27,204 (220 MB/s) -7,716 -22.10% slice::mapcountdense_000000007 33,497 (208 MB/s) 28,330 (247 MB/s) -5,167 -15.43% slice::mapcountdense_000000008 31,153 (256 MB/s) 28,617 (279 MB/s) -2,536 -8.14% slice::mapcountdense_000000009 30,745 (292 MB/s) 29,666 (303 MB/s) -1,079 -3.51% slice::mapcountdense_000000010 31,509 (317 MB/s) 29,804 (335 MB/s) -1,705 -5.41% slice::mapcountdense_000000011 32,526 (338 MB/s) 30,520 (360 MB/s) -2,006 -6.17% slice::mapcountdense_000000012 32,981 (363 MB/s) 28,739 (417 MB/s) -4,242 -12.86% slice::mapcountdense_000000013 34,713 (374 MB/s) 30,348 (428 MB/s) -4,365 -12.57% slice::mapcountdense_000000014 34,635 (404 MB/s) 29,974 (467 MB/s) -4,661 -13.46% slice::mapcountdense_000000015 35,924 (417 MB/s) 30,584 (490 MB/s) -5,340 -14.86% slice::mapcountdense_000000016 31,939 (500 MB/s) 30,564 (523 MB/s) -1,375 -4.31% slice::mapcountdense_000000032 36,545 (875 MB/s) 34,833 (918 MB/s) -1,712 -4.68% slice::mapcountdense_000000064 44,691 (1432 MB/s) 43,912 (1457 MB/s) -779 -1.74% slice::mapcountdense_000000128 67,210 (1904 MB/s) 64,630 (1980 MB/s) -2,580 -3.84% slice::mapcountdense_000000256 110,320 (2320 MB/s) 108,713 (2354 MB/s) -1,607 -1.46% slice::mapcountsparse_000000001 29,686 (33 MB/s) 28,673 (34 MB/s) -1,013 -3.41% slice::mapcountsparse_000000002 32,073 (62 MB/s) 30,519 (65 MB/s) -1,554 -4.85% slice::mapcountsparse_000000003 33,184 (90 MB/s) 31,208 (96 MB/s) -1,976 -5.95% slice::mapcountsparse_000000004 34,344 (116 MB/s) 30,242 (132 MB/s) -4,102 -11.94% slice::mapcountsparse_000000005 34,536 (144 MB/s) 30,552 (163 MB/s) -3,984 -11.54% slice::mapcountsparse_000000006 35,791 (167 MB/s) 30,813 (194 MB/s) -4,978 -13.91% slice::mapcountsparse_000000007 36,773 (190 MB/s) 31,362 (223 MB/s) -5,411 -14.71% slice::mapcountsparse_000000008 33,101 (241 MB/s) 32,399 (246 MB/s) -702 -2.12% slice::mapcountsparse_000000009 34,025 (264 MB/s) 33,065 (272 MB/s) -960 -2.82% slice::mapcountsparse_000000010 34,755 (287 MB/s) 33,152 (301 MB/s) -1,603 -4.61% slice::mapcountsparse_000000011 35,682 (308 MB/s) 33,631 (327 MB/s) -2,051 -5.75% slice::mapcountsparse_000000012 36,422 (329 MB/s) 32,604 (368 MB/s) -3,818 -10.48% slice::mapcountsparse_000000013 37,561 (346 MB/s) 32,978 (394 MB/s) -4,583 -12.20% slice::mapcountsparse_000000014 38,476 (363 MB/s) 33,376 (419 MB/s) -5,100 -13.26% slice::mapcountsparse_000000015 39,202 (382 MB/s) 33,750 (444 MB/s) -5,452 -13.91% slice::mapcountsparse_000000016 34,898 (458 MB/s) 33,621 (475 MB/s) -1,277 -3.66% slice::mapcountsparse_000000032 39,767 (804 MB/s) 38,013 (841 MB/s) -1,754 -4.41% slice::mapcountsparse_000000064 47,810 (1338 MB/s) 46,332 (1381 MB/s) -1,478 -3.09% slice::mapcountsparse_000000128 64,519 (1983 MB/s) 63,322 (2021 MB/s) -1,197 -1.86% slice::mapcountsparse_000000256 101,042 (2533 MB/s) 99,754 (2566 MB/s) -1,288 -1.27% str_::mapcountdense_000000001 27,183 (36 MB/s) 24,007 (41 MB/s) -3,176 -11.68% str_::mapcountdense_000000002 28,940 (69 MB/s) 24,574 (81 MB/s) -4,366 -15.09% str_::mapcountdense_000000003 29,000 (103 MB/s) 24,687 (121 MB/s) -4,313 -14.87% str_::mapcountdense_000000004 29,822 (134 MB/s) 24,377 (164 MB/s) -5,445 -18.26% str_::mapcountdense_000000005 31,962 (156 MB/s) 25,184 (198 MB/s) -6,778 -21.21% str_::mapcountdense_000000006 32,218 (186 MB/s) 25,020 (239 MB/s) -7,198 -22.34% str_::mapcountdense_000000007 35,482 (197 MB/s) 27,705 (252 MB/s) -7,777 -21.92% str_::mapcountdense_000000008 28,643 (279 MB/s) 25,563 (312 MB/s) -3,080 -10.75% str_::mapcountdense_000000009 30,112 (298 MB/s) 26,773 (336 MB/s) -3,339 -11.09% str_::mapcountdense_000000010 31,554 (316 MB/s) 27,607 (362 MB/s) -3,947 -12.51% str_::mapcountdense_000000011 32,062 (343 MB/s) 27,770 (396 MB/s) -4,292 -13.39% str_::mapcountdense_000000012 32,258 (372 MB/s) 25,612 (468 MB/s) -6,646 -20.60% str_::mapcountdense_000000013 33,544 (387 MB/s) 26,908 (483 MB/s) -6,636 -19.78% str_::mapcountdense_000000014 34,681 (403 MB/s) 27,267 (513 MB/s) -7,414 -21.38% str_::mapcountdense_000000015 37,883 (395 MB/s) 30,226 (496 MB/s) -7,657 -20.21% str_::mapcountdense_000000016 30,299 (528 MB/s) 27,960 (572 MB/s) -2,339 -7.72% str_::mapcountdense_000000032 34,372 (930 MB/s) 32,736 (977 MB/s) -1,636 -4.76% str_::mapcountdense_000000048 38,610 (1243 MB/s) 36,437 (1317 MB/s) -2,173 -5.63% str_::mapcountdense_000000064 43,052 (1486 MB/s) 41,269 (1550 MB/s) -1,783 -4.14% str_::mapcountdense_000000128 64,059 (1998 MB/s) 62,007 (2064 MB/s) -2,052 -3.20% str_::mapcountdense_000000256 109,608 (2335 MB/s) 107,184 (2388 MB/s) -2,424 -2.21% str_::mapcountsparse_000000001 29,155 (34 MB/s) 26,151 (38 MB/s) -3,004 -10.30% str_::mapcountsparse_000000002 31,536 (63 MB/s) 27,787 (71 MB/s) -3,749 -11.89% str_::mapcountsparse_000000003 32,524 (92 MB/s) 27,861 (107 MB/s) -4,663 -14.34% str_::mapcountsparse_000000004 33,535 (119 MB/s) 27,585 (145 MB/s) -5,950 -17.74% str_::mapcountsparse_000000005 34,239 (146 MB/s) 27,520 (181 MB/s) -6,719 -19.62% str_::mapcountsparse_000000006 35,485 (169 MB/s) 27,437 (218 MB/s) -8,048 -22.68% str_::mapcountsparse_000000007 39,098 (179 MB/s) 30,465 (229 MB/s) -8,633 -22.08% str_::mapcountsparse_000000008 30,882 (259 MB/s) 29,215 (273 MB/s) -1,667 -5.40% str_::mapcountsparse_000000009 33,375 (269 MB/s) 29,301 (307 MB/s) -4,074 -12.21% str_::mapcountsparse_000000010 33,531 (298 MB/s) 29,008 (344 MB/s) -4,523 -13.49% str_::mapcountsparse_000000011 34,607 (317 MB/s) 29,800 (369 MB/s) -4,807 -13.89% str_::mapcountsparse_000000012 35,700 (336 MB/s) 28,380 (422 MB/s) -7,320 -20.50% str_::mapcountsparse_000000013 36,692 (354 MB/s) 29,350 (442 MB/s) -7,342 -20.01% str_::mapcountsparse_000000014 37,326 (375 MB/s) 29,285 (478 MB/s) -8,041 -21.54% str_::mapcountsparse_000000015 41,098 (364 MB/s) 33,073 (453 MB/s) -8,025 -19.53% str_::mapcountsparse_000000016 33,046 (484 MB/s) 30,717 (520 MB/s) -2,329 -7.05% str_::mapcountsparse_000000032 37,471 (853 MB/s) 35,542 (900 MB/s) -1,929 -5.15% str_::mapcountsparse_000000048 41,324 (1161 MB/s) 39,332 (1220 MB/s) -1,992 -4.82% str_::mapcountsparse_000000064 45,858 (1395 MB/s) 43,802 (1461 MB/s) -2,056 -4.48% str_::mapcountsparse_000000128 62,471 (2048 MB/s) 60,683 (2109 MB/s) -1,788 -2.86% str_::mapcountsparse_000000256 101,283 (2527 MB/s) 97,655 (2621 MB/s) -3,628 -3.58% ```
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由 bors 提交于
Add ArrayVec and AccumulateVec to reduce heap allocations during interning of slices Updates `mk_tup`, `mk_type_list`, and `mk_substs` to allow interning directly from iterators. The previous PR, #37220, changed some of the calls to pass a borrowed slice from `Vec` instead of directly passing the iterator, and these changes further optimize that to avoid the allocation entirely. This change yields 50% less malloc calls in [some cases](https://pastebin.mozilla.org/8921686). It also yields decent, though not amazing, performance improvements: ``` futures-rs-test 4.091s vs 4.021s --> 1.017x faster (variance: 1.004x, 1.004x) helloworld 0.219s vs 0.220s --> 0.993x faster (variance: 1.010x, 1.018x) html5ever-2016- 3.805s vs 3.736s --> 1.018x faster (variance: 1.003x, 1.009x) hyper.0.5.0 4.609s vs 4.571s --> 1.008x faster (variance: 1.015x, 1.017x) inflate-0.1.0 3.864s vs 3.883s --> 0.995x faster (variance: 1.232x, 1.005x) issue-32062-equ 0.309s vs 0.299s --> 1.033x faster (variance: 1.014x, 1.003x) issue-32278-big 1.614s vs 1.594s --> 1.013x faster (variance: 1.007x, 1.004x) jld-day15-parse 1.390s vs 1.326s --> 1.049x faster (variance: 1.006x, 1.009x) piston-image-0. 10.930s vs 10.675s --> 1.024x faster (variance: 1.006x, 1.010x) reddit-stress 2.302s vs 2.261s --> 1.019x faster (variance: 1.010x, 1.026x) regex.0.1.30 2.250s vs 2.240s --> 1.005x faster (variance: 1.087x, 1.011x) rust-encoding-0 1.895s vs 1.887s --> 1.005x faster (variance: 1.005x, 1.018x) syntex-0.42.2 29.045s vs 28.663s --> 1.013x faster (variance: 1.004x, 1.006x) syntex-0.42.2-i 13.925s vs 13.868s --> 1.004x faster (variance: 1.022x, 1.007x) ``` We implement a small-size optimized vector, intended to be used primarily for collection of presumed to be short iterators. This vector cannot be "upsized/reallocated" into a heap-allocated vector, since that would require (slow) branching logic, but during the initial collection from an iterator heap-allocation is possible. We make the new `AccumulateVec` and `ArrayVec` generic over implementors of the `Array` trait, of which there is currently one, `[T; 8]`. In the future, this is likely to expand to other values of N. Huge thanks to @nnethercote for collecting the performance and other statistics mentioned above.
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由 bors 提交于
check target abi support This PR checks for each extern function / block whether the ABI / calling convention used is supported by the current target. This was achieved by adding an `abi_blacklist` field to the target specifications, listing the calling conventions unsupported for that target.
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由 John Hodge 提交于
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由 Mark-Simulacrum 提交于
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由 Mark-Simulacrum 提交于
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由 Mark-Simulacrum 提交于
AccumulateVec is generic over the Array trait, which is currently only implemented for [T; 8].
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由 bors 提交于
Fix `$crate`-related regressions Fixes #37345, fixes #37357, fixes #37352, and improves the `unused_extern_crates` lint. r? @nrc
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由 Jeffrey Seyfried 提交于
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由 Jeffrey Seyfried 提交于
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