cosmopolitan/third_party/quickjs/README.cosmo at f66ef5d58e2d87065253e52384af5f84ee0f7be0 - mirrors/cosmopolitan - Git - Batts Cloud

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Justine Tunney 8a91518633 Fix issues revealed by ECMAScript test262

Cosmopolitan's QuickJS is now equally conformant and performant, with
the exception of Atomics, which have been disabled since Cosmopolitan
currently doesn't support pthreads.

QuickJS memory usage -- BigNum 2021-03-27 version, 64-bit, malloc limit: -1

NAME                    COUNT     SIZE
memory allocated          937   131764  (140.6 per block)
memory used               938   116103  (8 overhead, 16.7 average slack)
atoms                     513    21408  (41.7 per atom)
objects                   170    12279  (72.2 per object)
  properties              864    15531  (5.1 per object)
  shapes                   58    12995  (224.1 per shape)
bytecode functions         13     1512
  bytecode                 13      867  (66.7 per function)
C functions                99
arrays                      1
  fast arrays               1
  elements                  1       16  (1.0 per fast array)

Result: 35/74740 errors, 1279 excluded, 485 skipped, 19 new, 2 fixed

real    2m40.828s
user    2m29.764s
sys     0m10.939s

2021-04-10 17:15:35 -07:00

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 Source:
 - https://bellard.org/quickjs/quickjs-2021-03-27.tar.xz
 Local Changes:
 - Replace snprintf with xasprintf in find_unique_cname
 - Squash uninitialized read of harnessbuf in run-test262.c
 - Change run-test262.c to not rebase configured paths