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Title: bpo-40334: PEP 617: New PEG parser for CPython by pablogsal · Pull Request #19503 · python/cpython · GitHub

Open Graph Title: bpo-40334: PEP 617: New PEG parser for CPython by pablogsal · Pull Request #19503 · python/cpython

X Title: bpo-40334: PEP 617: New PEG parser for CPython by pablogsal · Pull Request #19503 · python/cpython

Description: The SC has approved PEP 617 so we'd like to land before alpha 6 goes out. We need reviews NOW. https://bugs.python.org/issue40334

Open Graph Description: The SC has approved PEP 617 so we'd like to land before alpha 6 goes out. We need reviews NOW. https://bugs.python.org/issue40334

X Description: The SC has approved PEP 617 so we'd like to land before alpha 6 goes out. We need reviews NOW. https://bugs.python.org/issue40334

Opengraph URL: https://github.com/python/cpython/pull/19503

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bpo-40334: PEP 617: New PEG parser for CPython https://github.com/python/cpython/pull/19503/commits/1dcdc4b400f13fd7d2b839610c500244429e6ba4#top
Show all changes 78 commits https://github.com/python/cpython/pull/19503/files
57f78dd Run CI in pegen branch as well (#3) pablogsal Feb 26, 2020 https://github.com/python/cpython/pull/19503/commits/57f78ddc240f5d48fe249337070723d69aeadf8a
5c0c31f Merge steps 1-3 and 6 into 'pegen' branch (#8) gvanrossum Mar 20, 2020 https://github.com/python/cpython/pull/19503/commits/5c0c31f9717fab2e2d1134bbb9bb3250e5ead5eb
eab06f3 Fall back to a set for done in collect_todo (#9) lysnikolaou Mar 20, 2020 https://github.com/python/cpython/pull/19503/commits/eab06f32a3725cbfb697a11bb21bb8db91bb40e9
91427a4 Add Github Actions for pegen tests in Tools/peg_generator (#12) lysnikolaou Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/91427a4e2aee36aa1f224072d3832bcbd6d3f3a5
cccfd3d Allow expressions in yield_expression rule and rename it to annotated… lysnikolaou Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/cccfd3da257fb9ca3bbd7f71b038c2aab7035b71
51611b4 Copy .clang-format from pegen project, to guide 'make format-c' gvanrossum Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/51611b4db46094562d2fdd9e9843df35072d913d
0c7a382 Expose a C API and a Python-level module for pegen (#11) lysnikolaou Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/0c7a382d1a9b6209d46aa2be143118b4fc901c85
0cffa81 Run clang-format over peg_parser/pegen.c gvanrossum Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/0cffa8159e70035c605f0e6fbc58587904d6c728
e960c15 Run clang-format over Parser/pegen/pegen.c gvanrossum Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/e960c15e1f91da376fd9066f3faa1040da0e0f9f
89c2385 Run clang-format over Modules/peg_parser.c gvanrossum Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/89c23850ceea714b26b68b7d468b0b48b922a601
1d2b107 Ifdef-out token_name() to silence compiler output noise warning gvanrossum Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/1d2b107de232b7716f6408be0849a422a353d72d
12f6175 Merge branch 'master' into pegen gvanrossum Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/12f617571dfab03471968d209fa6dd512b9c193c
59abf20 Make Ubuntu tests pass; disable Win and Mac tests (#19) lysnikolaou Mar 23, 2020 https://github.com/python/cpython/pull/19503/commits/59abf202b9b48837377134097c5868cbb88c2bf8
14ae717 Rewrite run_parser* functions to always return a mod_ty (#17) lysnikolaou Mar 24, 2020 https://github.com/python/cpython/pull/19503/commits/14ae7170f68ddfec2c872f1b8af6a1b860ef26ed
bfa7445 Rewrite exported function (#21) lysnikolaou Mar 24, 2020 https://github.com/python/cpython/pull/19503/commits/bfa7445d61c216186aba72dc76939bb88f40e57b
4c4917b Merge remote-tracking branch 'upstream/master' into pegen lysnikolaou Mar 24, 2020 https://github.com/python/cpython/pull/19503/commits/4c4917b027790605ca688dc6ec99cc7856b8fbc0
479bd95 Remove all unnecessary code from Tools/peg_generator; only keep the g… lysnikolaou Mar 27, 2020 https://github.com/python/cpython/pull/19503/commits/479bd95368cf384ae378a004abcd194c39e271c7
4410737 Support for PEP 614 (#24) pablogsal Mar 27, 2020 https://github.com/python/cpython/pull/19503/commits/44107372b41601cd0f30db26f61a5a92c6cf7f7b
b984cad Re-enable MacOS test on Github Actions (#26) lysnikolaou Mar 27, 2020 https://github.com/python/cpython/pull/19503/commits/b984cadf32dab69de51d889009c4417642966574
919a669 Add memoization control (#28) gvanrossum Mar 27, 2020 https://github.com/python/cpython/pull/19503/commits/919a669b4affed2d03d7f190eac1b512ed27078d
55101cb Fold long lines in metagrammar gvanrossum Mar 30, 2020 https://github.com/python/cpython/pull/19503/commits/55101cb7049d0fd9355568f7a149287a018ae3ee
ca3eeca Update Parser/pegen/parse.c after addition of memoization flag (#28) lysnikolaou Apr 1, 2020 https://github.com/python/cpython/pull/19503/commits/ca3eecac84a4473e8117668442d27a3e9a749a71
33b77af Add a command-line flag and an environment variable to enable pegen (… lysnikolaou Apr 3, 2020 https://github.com/python/cpython/pull/19503/commits/33b77af56e50fbc150b704ab48bbdd424f021fe7
3aa1dd4 Add missing possible start rules in python.gram (#32) lysnikolaou Apr 3, 2020 https://github.com/python/cpython/pull/19503/commits/3aa1dd4c394174b51216fa3f542ac0d99f3dd330
b8ce9a1 Merge remote-tracking branch 'upstream/master' into pegen pablogsal Apr 3, 2020 https://github.com/python/cpython/pull/19503/commits/b8ce9a16f243ecfbd81232a4c491266fa6aa4482
f3d8888 Update grammar to account for _Py_keyword changes (#40) pablogsal Apr 3, 2020 https://github.com/python/cpython/pull/19503/commits/f3d88886f0d88396eacabf0d7470b201de53d5cc
242114a Merge remote-tracking branch 'upstream/master' into pegen pablogsal Apr 3, 2020 https://github.com/python/cpython/pull/19503/commits/242114a736ea0ba38be879654399b2bb465de419
35bedc2 Add new C API functions PyPegen_*FromFileObject and use them in inter… lysnikolaou Apr 4, 2020 https://github.com/python/cpython/pull/19503/commits/35bedc2c84304837860196d3b8a27890f6fd5528
74736fe Memoize some rules to avoid exponential time in deep nesting (#39) pablogsal Apr 4, 2020 https://github.com/python/cpython/pull/19503/commits/74736fe8bd74cfe0ce24724114d6819fc7df6689
4bc4e7c Run tests with pegen enabled on CI (#41) lysnikolaou Apr 5, 2020 https://github.com/python/cpython/pull/19503/commits/4bc4e7c369fb8a2aa5de21b890e618888d6254dd
6ba7869 Improve SyntaxError message when an ERRORTOKEN is returned by the tok… lysnikolaou Apr 6, 2020 https://github.com/python/cpython/pull/19503/commits/6ba7869fbdc529518c399b6c2173457e532e6a1d
ee7b2cf Use FILE pointer instead of filename string to pass file to parser (#52) lysnikolaou Apr 6, 2020 https://github.com/python/cpython/pull/19503/commits/ee7b2cf68d41c64f91b44c6f907fb295d1f86f3d
c12c227 Add start_mark variable in loop rules (#51) lysnikolaou Apr 6, 2020 https://github.com/python/cpython/pull/19503/commits/c12c2278bc49cc19c27e15df850964ecc23317a5
18743bc Simplify grammar rules around ASYNC (#53) gvanrossum Apr 7, 2020 https://github.com/python/cpython/pull/19503/commits/18743bcab8d964fdf67009b967a519a71551d508
3359dab Throw SyntaxError when parsing a STRING throws an exception (#54) lysnikolaou Apr 7, 2020 https://github.com/python/cpython/pull/19503/commits/3359dab6a8a7439ca4bba140b8ac0a725d126776
071df9c Add use_peg field to sys.flags (#55) lysnikolaou Apr 7, 2020 https://github.com/python/cpython/pull/19503/commits/071df9c551fd879c797ae955af1b7c40f4992e4d
b1f0bd8 Improve error reporting and disallow f(**kwargs, *args) (#46) pablogsal Apr 7, 2020 https://github.com/python/cpython/pull/19503/commits/b1f0bd8a81995ef03d8f76c91854b7b1e551f702
0627990 Propagate errors from the tokenizer (#57) pablogsal Apr 8, 2020 https://github.com/python/cpython/pull/19503/commits/0627990fcdaaeacd534d29217bdb0fe7a8a21663
f233194 Output more descriptive error messages for named expressions (#56) lysnikolaou Apr 8, 2020 https://github.com/python/cpython/pull/19503/commits/f233194fa8e5f34af5480a58d818ac021805b78b
1dcdc4b Output more descriptive error messages for invalid assignments (#59) lysnikolaou Apr 9, 2020 https://github.com/python/cpython/pull/19503/commits/1dcdc4b400f13fd7d2b839610c500244429e6ba4
8da51f1 Avoid memory leak in Parser_New (#62) lysnikolaou Apr 9, 2020 https://github.com/python/cpython/pull/19503/commits/8da51f1e11848f8084bb4d6ffff41f4b32b58c95
494114e Fix SEGFAULT in test_fstring (#61) lysnikolaou Apr 9, 2020 https://github.com/python/cpython/pull/19503/commits/494114e035031c11aac921e4ac09dedf14e80cdb
99a8e2f Provide location info on SyntaxError due to EOLS or EOFS errors (#60) lysnikolaou Apr 9, 2020 https://github.com/python/cpython/pull/19503/commits/99a8e2fa08799b1c965585758e87c9148215fac5
502dfb7 Merge remote-tracking branch 'upstream/master' into pegen lysnikolaou Apr 10, 2020 https://github.com/python/cpython/pull/19503/commits/502dfb719ecdfa12a1552b580d6b1dc3a2e72b2d
e43370e Ignore encoding cookie when that's necessary (#68) lysnikolaou Apr 12, 2020 https://github.com/python/cpython/pull/19503/commits/e43370e872b2adc0123471da444193e54f0c2da2
a7f962d Silence compiler warnings about unused variables on Linux (#70) lysnikolaou Apr 12, 2020 https://github.com/python/cpython/pull/19503/commits/a7f962d81e6e1a14a30fc64d37229eae87be5a81
9c36a0f Merge remote-tracking branch 'upstream/master' into pegen lysnikolaou Apr 12, 2020 https://github.com/python/cpython/pull/19503/commits/9c36a0f393c9cdacb7ec136c9dcf927401ed2e97
9952d03 Refactor illegal syntax rules to avoid invalid error messages (#72) lysnikolaou Apr 13, 2020 https://github.com/python/cpython/pull/19503/commits/9952d03e3c3885453950add9b3e5b3179ad6b719
b684233 Create a new rule for STRING+ and memoize it (#67) lysnikolaou Apr 14, 2020 https://github.com/python/cpython/pull/19503/commits/b684233cfb2fe3cefb7013126804a4bb56a22792
45d6bf7 Fix type of strings rule (#73) lysnikolaou Apr 14, 2020 https://github.com/python/cpython/pull/19503/commits/45d6bf72da8a012e0eb1531da8a89df7426d89e9
a54e89e Skip one test_traceback test, where pegen is better (#74) lysnikolaou Apr 15, 2020 https://github.com/python/cpython/pull/19503/commits/a54e89e61404333ddcbd2dc569a28e3fe4dd633b
d386c70 Skip non-critical test_string_literals test that fails (#75) lysnikolaou Apr 15, 2020 https://github.com/python/cpython/pull/19503/commits/d386c70049b7ba3074cbd1871026d97a20c2dab2
1169db2 Add script that reproduces all the PEP benchmarks (#71) lysnikolaou Apr 15, 2020 https://github.com/python/cpython/pull/19503/commits/1169db2bcbfa4a17adc15e6f8c69a38642eb357c
e764fb2 Merge remote-tracking branch 'upstream/master' into pegen lysnikolaou Apr 15, 2020 https://github.com/python/cpython/pull/19503/commits/e764fb28336f735687367ae569943f8f58103605
dad5249 Fix calls to _PyInterpreterState_GET after merge lysnikolaou Apr 15, 2020 https://github.com/python/cpython/pull/19503/commits/dad5249bd196664dbc9e3cb1550ba0c2f157fed5
6f6354f Generate specialized error message for invalid string prefixes (#77) lysnikolaou Apr 15, 2020 https://github.com/python/cpython/pull/19503/commits/6f6354ffe01e524624edf258422f210fdb825ef3
b623006 Compress data/xxl.py and decompress on demand (#79) pablogsal Apr 17, 2020 https://github.com/python/cpython/pull/19503/commits/b623006edca7e813ff65c0f4792c6cc5650f5ca2
1a03e3e Use the new parser by default (#81) pablogsal Apr 17, 2020 https://github.com/python/cpython/pull/19503/commits/1a03e3eea7e9141b395d0edf4e6e54a831fb5f8b
3af6081 Rename pegen functions to start with the _PyPegen_ prefix (#80) lysnikolaou Apr 17, 2020 https://github.com/python/cpython/pull/19503/commits/3af6081c2174f1cec2a394cc457a7b10d296277b
e3c95c9 Compile pegen in windows (#82) pablogsal Apr 17, 2020 https://github.com/python/cpython/pull/19503/commits/e3c95c997ce4cc674206a53d2288a3f1bb4344e6
d7e4b5c Remove whitespace to make patchcheck happy (#87) pablogsal Apr 17, 2020 https://github.com/python/cpython/pull/19503/commits/d7e4b5cafe32f16251ed5e0230d236774c8458cc
ffee25f Rename the peg_parser module to _peg_parser (#86) pablogsal Apr 17, 2020 https://github.com/python/cpython/pull/19503/commits/ffee25fe66dedc907bffe2e192920b678e3e8521
b625797 Fix travis errors (#88) pablogsal Apr 17, 2020 https://github.com/python/cpython/pull/19503/commits/b625797cdbadd6b2cb0ec7be2e203d6b3320878e
85f7400 Remove the -p command line option and add a new -X oldparser option i… lysnikolaou Apr 18, 2020 https://github.com/python/cpython/pull/19503/commits/85f7400775d6d80611ce065d3eb4d2586af51904
a4c58b5 Disallow trailing comma in from-imports (#97) lysnikolaou Apr 20, 2020 https://github.com/python/cpython/pull/19503/commits/a4c58b5e34d2967e6f8e8d4ef4ef8f37eafe27a8
04062ed Add blurb gvanrossum Apr 20, 2020 https://github.com/python/cpython/pull/19503/commits/04062ed2314e8a2ffef66402e5a9649b1a5c2235
f1afe08 Use pegen in the symtable and fix symtable test errors (#102) pablogsal Apr 20, 2020 https://github.com/python/cpython/pull/19503/commits/f1afe08d40a5728ea3fb29434f63475e9b9826a1
b8899ec Merge branch 'master' into pegen gvanrossum Apr 20, 2020 https://github.com/python/cpython/pull/19503/commits/b8899eccdeda99bdd1eda6b67351dbd4b87b6a0f
975baa4 Only optimize __debug__ when ctx==Load (#106) gvanrossum Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/975baa484e3af052ab63fa4949eccdefcfcef56c
298650c Reproduce current parser's error messages for indentation errors (#107) lysnikolaou Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/298650cd00bcc28ae79eac25b0b3cf4a220d635c
de6edfb Add more tokenize errors (#105) pablogsal Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/de6edfbb28b9492c5b04b82805f81ac9ab5fd5f5
ef0f6fa Normalize unicode identifiers (#108) pablogsal Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/ef0f6fac3ab37974a21a4ad2c9a5b9cad6fc1e4f
a9d309c Raise IndentationError on indentation-related errors (#111) lysnikolaou Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/a9d309cb0eaff73a749ecff451af7068a8bf66c1
871cecb Copy most fixes from #96 except for the part that uses pegen for comp… gvanrossum Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/871cecb63edb3fc91856d8105a25c15bebedc25a
ecef99b Temporarily suppress two failures in test_eof.py (one even with old p… gvanrossum Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/ecef99bafac889263be94e3b1214b1716b4e2eef
443afb1 Use col_offset when raising an E_DEDENT error (#116) lysnikolaou Apr 21, 2020 https://github.com/python/cpython/pull/19503/commits/443afb1c2bed1b5e71a7a656e3417f1e219c2ecc
87460d2 Use pegen in compile and other functions in pythonrun.c (#96) lysnikolaou Apr 22, 2020 https://github.com/python/cpython/pull/19503/commits/87460d21f9a56393910da9e4f2d283a7222933ff
14ab84b Don't use longjmp and check for the error indicator on every rule (#119) pablogsal Apr 22, 2020 https://github.com/python/cpython/pull/19503/commits/14ab84b2181d8f3b30915d569d6fafadfc507f1f
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