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Encode ±INFINITY as ±1e5000

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The V8 behavior of encoding infinity as null doesn't make sense to me.
Using ±1e5000 is better, because JSON.parse decodes it as INFINITY and
the information is preserved. This could be a breaking change for some
This commit is contained in:
Justine Tunney 2024-06-01 03:15:23 -07:00
parent 9b6718ac99
commit fae1c32267
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GPG key ID: BE714B4575D6E328
3 changed files with 7 additions and 12 deletions
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15
test/tool/net/jsontestsuite_okay_test.lua
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@ -176,30 +176,25 @@ assert(DecodeJson(' [123e-10000000] '))
assert(EncodeJson(DecodeJson(' [123e-10000000] ')) == '[0]')
assert(EncodeLua(DecodeJson(' [123e-10000000] ')) == '{0.}')
-- [jart] consistent with v8 we encode Infinity as null (wut?)
-- https://github.com/nst/JSONTestSuite/tree/d64aefb55228d9584d3e5b2433f720ea8fd00c82/test_parsing/i_number_real_pos_overflow.json
assert(DecodeJson(' [123123e100000] '))
assert(EncodeJson(DecodeJson(' [123123e100000] ')) == '[null]')
assert(EncodeJson(DecodeJson(' [123123e100000] ')) == '[1e5000]')
-- [jart] consistent with v8 we encode -Infinity as null (wut?)
-- https://github.com/nst/JSONTestSuite/tree/d64aefb55228d9584d3e5b2433f720ea8fd00c82/test_parsing/i_number_real_neg_overflow.json
assert(DecodeJson(' [-123123e100000] '))
assert(EncodeJson(DecodeJson(' [-123123e100000] ')) == '[null]')
assert(EncodeJson(DecodeJson(' [-123123e100000] ')) == '[-1e5000]')
-- [jart] consistent with v8 we encode Infinity as null (wut?)
-- https://github.com/nst/JSONTestSuite/tree/d64aefb55228d9584d3e5b2433f720ea8fd00c82/test_parsing/i_number_pos_double_huge_exp.json
assert(DecodeJson(' [1.5e+9999] '))
assert(EncodeJson(DecodeJson(' [1.5e+9999] ')) == '[null]')
assert(EncodeJson(DecodeJson(' [1.5e+9999] ')) == '[1e5000]')
-- [jart] consistent with v8 we encode -Infinity as null (wut?)
-- https://github.com/nst/JSONTestSuite/tree/d64aefb55228d9584d3e5b2433f720ea8fd00c82/test_parsing/i_number_neg_int_huge_exp.json
assert(DecodeJson(' [-1e+9999] '))
assert(EncodeJson(DecodeJson(' [-1e+9999] ')) == '[null]')
assert(EncodeJson(DecodeJson(' [-1e+9999] ')) == '[-1e5000]')
-- [jart] consistent with v8 we encode Infinity as null (wut?)
-- https://github.com/nst/JSONTestSuite/tree/d64aefb55228d9584d3e5b2433f720ea8fd00c82/test_parsing/i_number_huge_exp.json
assert(DecodeJson(' [0.4e00669999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999969999999006] '))
assert(EncodeJson(DecodeJson(' [0.4e00669999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999969999999006] ')) == '[null]')
assert(EncodeJson(DecodeJson(' [0.4e00669999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999969999999006] ')) == '[1e5000]')
-- [jart] consistent with v8 we encode underflow as 0
-- https://github.com/nst/JSONTestSuite/tree/d64aefb55228d9584d3e5b2433f720ea8fd00c82/test_parsing/i_number_double_huge_neg_exp.json