185868 2018-05-22 07:50:36 -0700 Date.parse() doesn't properly handle input outside of ES Spec limits 2018-05-23 13:03:33 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 msaboff msaboff benjamin cdumez cmarcelo dbates ews-watchlist mark.lam webkit-bug-importer oldest_to_newest 1426153 0 msaboff 2018-05-22 07:50:36 -0700 From May 2018 TC-39 meeting: SpiderMonkey strictly conforms to the Time Value specification: > Date.parse("-271821-04-19T11:59:59.999Z") NaN V8, JSC: > Date.parse("-271821-04-19T11:59:59.999Z") -8640000043200001 > Date.parse("-999999-01-01T00:00:00.000Z") V8/JSC -31619087596800000 > Date.parse("-999999-01-01T00:00:00.001Z") V8/JSC -31619087596800000 > Date.parse("-999999-01-01T00:00:00.002Z") V8 -31619087596800000 JSC -31619087596799996 > Date.parse("-1000000-01-01T00:00:00.000Z") V8 NaN > Date.parse("-1000000-01-01T00:00:00.000Z") JSC -31619119219200000 Apparently the Safari implementation is accepting any year value from MIN_INT to MAX_INT - 1: > Date.parse("-2147483648-01-01T00:00:00.000Z") NaN > Date.parse("-2147483647-01-01T00:00:00.000Z") -67768100536348800000 ... > Date.parse("2147483646-01-01T00:00:00.000Z") 67767976170460800000 > Date.parse("2147483647-01-01T00:00:00.000Z") NaN Test262 tests will land soon. 1426663 1 341111 msaboff 2018-05-23 12:00:17 -0700 Created attachment 341111 Patch 1426666 2 341111 mark.lam 2018-05-23 12:07:02 -0700 Comment on attachment 341111 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=341111&action=review r=me > Source/WTF/wtf/DateMath.cpp:562 > + // Clamp to EcmaScript standard of +/- 100,000,000 days from 01 January, 1970. Let's add a link to https://tc39.github.io/ecma262/#sec-time-values-and-time-range here. 1426696 3 msaboff 2018-05-23 13:02:41 -0700 Committed r232122: <https://trac.webkit.org/changeset/232122> 1426697 4 webkit-bug-importer 2018-05-23 13:03:33 -0700 <rdar://problem/40495678> 341111 2018-05-23 12:00:17 -0700 2018-05-23 12:07:02 -0700 Patch 185868.patch text/plain 7461 msaboff SW5kZXg6IEpTVGVzdHMvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIEpTVGVzdHMvQ2hhbmdlTG9n CShyZXZpc2lvbiAyMzIxMjApCisrKyBKU1Rlc3RzL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpA QCAtMSwzICsxLDE3IEBACisyMDE4LTA1LTIzICBNaWNoYWVsIFNhYm9mZiAgPG1zYWJvZmZAYXBw bGUuY29tPgorCisgICAgICAgIERhdGUucGFyc2UoKSBkb2Vzbid0IHByb3Blcmx5IGhhbmRsZSBp bnB1dCBvdXRzaWRlIG9mIEVTIFNwZWMgbGltaXRzCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJr aXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xODU4NjgKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JP RFkgKE9PUFMhKS4KKworICAgICAgICBOZXcgdGVzdC4KKworICAgICAgICAqIHN0cmVzcy9kYXRl 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