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deps: V8: cherry-pick 2ada52cffbff #45573

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Nov 24, 2022
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2 changes: 1 addition & 1 deletion common.gypi
Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@

# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.7',
'v8_embedder_string': '-node.8',

##### V8 defaults for Node.js #####

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2 changes: 1 addition & 1 deletion deps/v8/src/date/dateparser-inl.h
Original file line number Diff line number Diff line change
Expand Up @@ -192,7 +192,7 @@ DateParser::DateToken DateParser::DateStringTokenizer<CharType>::Scan() {
if (in_->Skip('+')) return DateToken::Symbol('+');
if (in_->Skip('.')) return DateToken::Symbol('.');
if (in_->Skip(')')) return DateToken::Symbol(')');
if (in_->IsAsciiAlphaOrAbove()) {
if (in_->IsAsciiAlphaOrAbove() && !in_->IsWhiteSpaceChar()) {
DCHECK_EQ(KeywordTable::kPrefixLength, 3);
uint32_t buffer[3] = {0, 0, 0};
int length = in_->ReadWord(buffer, 3);
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4 changes: 3 additions & 1 deletion deps/v8/src/date/dateparser.h
Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,8 @@ class DateParser : public AllStatic {
// Return word length.
int ReadWord(uint32_t* prefix, int prefix_size) {
int len;
for (len = 0; IsAsciiAlphaOrAbove(); Next(), len++) {
for (len = 0; IsAsciiAlphaOrAbove() && !IsWhiteSpaceChar();
Next(), len++) {
if (len < prefix_size) prefix[len] = AsciiAlphaToLower(ch_);
}
for (int i = len; i < prefix_size; i++) prefix[i] = 0;
Expand All @@ -115,6 +116,7 @@ class DateParser : public AllStatic {
bool IsEnd() const { return ch_ == 0; }
bool IsAsciiDigit() const { return IsDecimalDigit(ch_); }
bool IsAsciiAlphaOrAbove() const { return ch_ >= 'A'; }
bool IsWhiteSpaceChar() const { return IsWhiteSpace(ch_); }
bool IsAsciiSign() const { return ch_ == '+' || ch_ == '-'; }

// Return 1 for '+' and -1 for '-'.
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47 changes: 47 additions & 0 deletions deps/v8/test/intl/regress-13494.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,47 @@
// Copyright 2022 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Test the new Date( date.toLocaleString("en-US")) is not invalid.
// This is not guaranteed by the standard but many code use that to set the
// timezone as suggested in
// https://stackoverflow.com/questions/15141762/how-to-initialize-a-javascript-date-to-a-particular-time-zone

let d = new Date();

// https://tc39.es/ecma262/#sec-todatestring
// 21.4.4.41.4 ToDateString ( tv )
// 1. If tv is NaN, return "Invalid Date".
let invalid = "Invalid Date";
let largestDiff = 25*60*60*1000;

let garbage = new Date("garbage");
assertTrue(invalid == garbage);
assertEquals(NaN, garbage.getTime());

let d1 = new Date(d.toLocaleString("en-US"));
assertTrue(d1 != invalid);
assertTrue(d1.getTime() != NaN);
// The milliseconds are different between d1 and d.
assertTrue(Math.abs(d1-d) < 1000);

// Force a version of date string which have U+202f before AM
let nnbsp_am = new Date("11/16/2022, 9:04:55\u202fAM");
assertTrue(nnbsp_am != invalid);
assertTrue(nnbsp_am.getTime() != NaN);
// Force a version of date string which have U+202f before PM
let nnbsp_pm = new Date("11/16/2022, 9:04:55\u202fPM");
assertTrue(nnbsp_pm != invalid);
assertTrue(nnbsp_pm.getTime() != NaN);

let d2 = new Date(d.toLocaleString("en-US", {timeZone: "Asia/Taipei"}));
assertTrue(d2 != invalid);
assertTrue(d2.getTime() != NaN);
// The differences should be within 25 hours.
assertTrue(Math.abs(d2-d) < largestDiff);

let d3 = new Date(d.toLocaleString("en-US", {timeZone: "Africa/Lusaka"}));
assertTrue(d3 != invalid);
assertTrue(d3.getTime() != NaN);
// The differences should be within 25 hours.
assertTrue(Math.abs(d3-d) < largestDiff);