AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

[Intl] Remove intl.(h|cc)

Browse Source 
Fold methods from intl.* to objects/intl-objects.*
Move Isolate* to the first parameter for some method
Move ICUSerice type under Intl
Hide ICUTimeZoneCache under a CreateTimeZoneCache factory method.

Bug: v8:5751
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Ie6f6a1ceee789333a077c1965de8e11d8c15c175
Reviewed-on: https://chromium-review.googlesource.com/c/1293109
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56873}
This commit is contained in:
Frank Tang 2018-10-23 06:02:57 +08:00 committed by Commit Bot
parent 66daabcca9
commit c4311e52f7
19 changed files with 553 additions and 625 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
BUILD.gn
View File

@ -2150,8 +2150,6 @@ v8_source_set("v8_base") {
"src/interpreter/interpreter-intrinsics.h",
"src/interpreter/interpreter.cc",
"src/interpreter/interpreter.h",
"src/intl.cc",
"src/intl.h",
"src/isolate-data.h",
"src/isolate-inl.h",
"src/isolate.cc",
@ -2976,8 +2974,6 @@ v8_source_set("v8_base") {
sources -= [
"src/builtins/builtins-intl.cc",
"src/char-predicates.cc",
"src/intl.cc",
"src/intl.h",
"src/objects/intl-objects.cc",
"src/objects/intl-objects.h",
"src/objects/js-break-iterator-inl.h",

34
src/builtins/builtins-intl.cc
View File

@ -14,7 +14,6 @@
#include "src/builtins/builtins.h"
#include "src/date.h"
#include "src/elements.h"
#include "src/intl.h"
#include "src/objects-inl.h"
#include "src/objects/intl-objects.h"
#include "src/objects/js-array-inl.h"
@ -50,7 +49,7 @@ BUILTIN(StringPrototypeToUpperCaseIntl) {
HandleScope scope(isolate);
TO_THIS_STRING(string, "String.prototype.toUpperCase");
string = String::Flatten(isolate, string);
RETURN_RESULT_OR_FAILURE(isolate, ConvertCase(string, true, isolate));
RETURN_RESULT_OR_FAILURE(isolate, Intl::ConvertToUpper(isolate, string));
}
BUILTIN(StringPrototypeNormalizeIntl) {
@ -98,11 +97,7 @@ BUILTIN(StringPrototypeNormalizeIntl) {
icu::UnicodeString result;
std::unique_ptr<uc16[]> sap;
UErrorCode status = U_ZERO_ERROR;
{
DisallowHeapAllocation no_gc;
String::FlatContent flat = string->GetFlatContent();
const UChar* src = GetUCharBufferFromFlat(flat, &sap, length);
icu::UnicodeString input(false, src, length);
icu::UnicodeString input = Intl::ToICUUnicodeString(isolate, string);
// Getting a singleton. Should not free it.
const icu::Normalizer2* normalizer =
icu::Normalizer2::getInstance(nullptr, form_name, form_mode, status);
@ -118,7 +113,6 @@ BUILTIN(StringPrototypeNormalizeIntl) {
result.setTo(false, input.getBuffer(), normalized_prefix_length);
// copy-on-write; normalize the suffix and append to |result|.
normalizer->normalizeSecondAndAppend(result, unnormalized, status);
}
if (U_FAILURE(status)) {
THROW_NEW_ERROR_RETURN_FAILURE(isolate,
@ -137,7 +131,8 @@ BUILTIN(V8BreakIteratorSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate, Intl::SupportedLocalesOf(isolate, ICUService::kBreakIterator,
isolate,
Intl::SupportedLocalesOf(isolate, Intl::ICUService::kBreakIterator,
locales, options));
}
@ -147,8 +142,8 @@ BUILTIN(NumberFormatSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate, Intl::SupportedLocalesOf(isolate, ICUService::kNumberFormat,
locales, options));
isolate, Intl::SupportedLocalesOf(
isolate, Intl::ICUService::kNumberFormat, locales, options));
}
BUILTIN(NumberFormatPrototypeFormatToParts) {
@ -189,7 +184,7 @@ BUILTIN(DateTimeFormatSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate, Intl::SupportedLocalesOf(isolate, ICUService::kDateFormat,
isolate, Intl::SupportedLocalesOf(isolate, Intl::ICUService::kDateFormat,
locales, options));
}
@ -540,7 +535,8 @@ BUILTIN(ListFormatSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate, Intl::SupportedLocalesOf(isolate, ICUService::kListFormatter,
isolate,
Intl::SupportedLocalesOf(isolate, Intl::ICUService::kListFormatter,
locales, options));
}
@ -647,8 +643,8 @@ BUILTIN(RelativeTimeFormatSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate,
Intl::SupportedLocalesOf(isolate, ICUService::kRelativeDateTimeFormatter,
isolate, Intl::SupportedLocalesOf(
isolate, Intl::ICUService::kRelativeDateTimeFormatter,
locales, options));
}
@ -911,7 +907,7 @@ BUILTIN(PluralRulesSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate, Intl::SupportedLocalesOf(isolate, ICUService::kPluralRules,
isolate, Intl::SupportedLocalesOf(isolate, Intl::ICUService::kPluralRules,
locales, options));
}
@ -961,8 +957,8 @@ BUILTIN(CollatorSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate, Intl::SupportedLocalesOf(isolate, ICUService::kCollator, locales,
options));
isolate, Intl::SupportedLocalesOf(isolate, Intl::ICUService::kCollator,
locales, options));
}
BUILTIN(CollatorPrototypeCompare) {
@ -1117,7 +1113,7 @@ BUILTIN(SegmenterSupportedLocalesOf) {
Handle<Object> options = args.atOrUndefined(isolate, 2);
RETURN_RESULT_OR_FAILURE(
isolate, Intl::SupportedLocalesOf(isolate, ICUService::kSegmenter,
isolate, Intl::SupportedLocalesOf(isolate, Intl::ICUService::kSegmenter,
locales, options));
}

8
src/date.cc
View File

@ -6,11 +6,10 @@
#include "src/conversions.h"
#include "src/objects-inl.h"
#include "src/objects.h"
#ifdef V8_INTL_SUPPORT
#include "src/intl.h"
#include "src/objects/intl-objects.h"
#endif
#include "src/objects.h"
namespace v8 {
namespace internal {
@ -30,8 +29,7 @@ DateCache::DateCache()
: stamp_(nullptr),
tz_cache_(
#ifdef V8_INTL_SUPPORT
FLAG_icu_timezone_data ? new ICUTimezoneCache()
: base::OS::CreateTimezoneCache()
Intl::CreateTimeZoneCache()
#else
base::OS::CreateTimezoneCache()
#endif

7
src/external-reference.cc
View File

@ -47,7 +47,7 @@
#endif // V8_INTERPRETED_REGEXP
#ifdef V8_INTL_SUPPORT
#include "src/intl.h"
#include "src/objects/intl-objects.h"
#endif // V8_INTL_SUPPORT
namespace v8 {
@ -815,11 +815,12 @@ ExternalReference ExternalReference::check_object_type() {
#ifdef V8_INTL_SUPPORT
ExternalReference ExternalReference::intl_convert_one_byte_to_lower() {
return ExternalReference(Redirect(FUNCTION_ADDR(ConvertOneByteToLower)));
return ExternalReference(
Redirect(FUNCTION_ADDR(Intl::ConvertOneByteToLower)));
}
ExternalReference ExternalReference::intl_to_latin1_lower_table() {
uint8_t* ptr = const_cast<uint8_t*>(ToLatin1LowerTable());
uint8_t* ptr = const_cast<uint8_t*>(Intl::ToLatin1LowerTable());
return ExternalReference(reinterpret_cast<Address>(ptr));
}
#endif // V8_INTL_SUPPORT

420
src/intl.cc
View File

@ -1,420 +0,0 @@
// Copyright 2013 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.
#ifndef V8_INTL_SUPPORT
#error Internationalization is expected to be enabled.
#endif // V8_INTL_SUPPORT
#include "src/intl.h"
#include <memory>
#include "src/heap/factory.h"
#include "src/isolate.h"
#include "src/objects-inl.h"
#include "src/string-case.h"
#include "unicode/basictz.h"
#include "unicode/calendar.h"
#include "unicode/gregocal.h"
#include "unicode/timezone.h"
#include "unicode/ustring.h"
#include "unicode/uvernum.h"
#include "unicode/uversion.h"
namespace v8 {
namespace internal {
namespace {
inline bool IsASCIIUpper(uint16_t ch) { return ch >= 'A' && ch <= 'Z'; }
const uint8_t kToLower[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23,
0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73,
0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B,
0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83,
0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B,
0x9C, 0x9D, 0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3,
0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB,
0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xD7,
0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3,
0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB,
0xFC, 0xFD, 0xFE, 0xFF,
};
inline uint16_t ToLatin1Lower(uint16_t ch) {
return static_cast<uint16_t>(kToLower[ch]);
}
inline uint16_t ToASCIIUpper(uint16_t ch) {
return ch & ~((ch >= 'a' && ch <= 'z') << 5);
}
// Does not work for U+00DF (sharp-s), U+00B5 (micron), U+00FF.
inline uint16_t ToLatin1Upper(uint16_t ch) {
DCHECK(ch != 0xDF && ch != 0xB5 && ch != 0xFF);
return ch &
~(((ch >= 'a' && ch <= 'z') || (((ch & 0xE0) == 0xE0) && ch != 0xF7))
<< 5);
}
template <typename Char>
bool ToUpperFastASCII(const Vector<const Char>& src,
Handle<SeqOneByteString> result) {
// Do a faster loop for the case where all the characters are ASCII.
uint16_t ored = 0;
int32_t index = 0;
for (auto it = src.begin(); it != src.end(); ++it) {
uint16_t ch = static_cast<uint16_t>(*it);
ored |= ch;
result->SeqOneByteStringSet(index++, ToASCIIUpper(ch));
}
return !(ored & ~0x7F);
}
const uint16_t sharp_s = 0xDF;
template <typename Char>
bool ToUpperOneByte(const Vector<const Char>& src, uint8_t* dest,
int* sharp_s_count) {
// Still pretty-fast path for the input with non-ASCII Latin-1 characters.
// There are two special cases.
// 1. U+00B5 and U+00FF are mapped to a character beyond U+00FF.
// 2. Lower case sharp-S converts to "SS" (two characters)
*sharp_s_count = 0;
for (auto it = src.begin(); it != src.end(); ++it) {
uint16_t ch = static_cast<uint16_t>(*it);
if (V8_UNLIKELY(ch == sharp_s)) {
++(*sharp_s_count);
continue;
}
if (V8_UNLIKELY(ch == 0xB5 || ch == 0xFF)) {
// Since this upper-cased character does not fit in an 8-bit string, we
// need to take the 16-bit path.
return false;
}
*dest++ = ToLatin1Upper(ch);
}
return true;
}
template <typename Char>
void ToUpperWithSharpS(const Vector<const Char>& src,
Handle<SeqOneByteString> result) {
int32_t dest_index = 0;
for (auto it = src.begin(); it != src.end(); ++it) {
uint16_t ch = static_cast<uint16_t>(*it);
if (ch == sharp_s) {
result->SeqOneByteStringSet(dest_index++, 'S');
result->SeqOneByteStringSet(dest_index++, 'S');
} else {
result->SeqOneByteStringSet(dest_index++, ToLatin1Upper(ch));
}
}
}
inline int FindFirstUpperOrNonAscii(String* s, int length) {
for (int index = 0; index < length; ++index) {
uint16_t ch = s->Get(index);
if (V8_UNLIKELY(IsASCIIUpper(ch) || ch & ~0x7F)) {
return index;
}
}
return length;
}
} // namespace
const uint8_t* ToLatin1LowerTable() { return &kToLower[0]; }
const UChar* GetUCharBufferFromFlat(const String::FlatContent& flat,
std::unique_ptr<uc16[]>* dest,
int32_t length) {
DCHECK(flat.IsFlat());
if (flat.IsOneByte()) {
if (!*dest) {
dest->reset(NewArray<uc16>(length));
CopyChars(dest->get(), flat.ToOneByteVector().start(), length);
}
return reinterpret_cast<const UChar*>(dest->get());
} else {
return reinterpret_cast<const UChar*>(flat.ToUC16Vector().start());
}
}
MaybeHandle<String> LocaleConvertCase(Handle<String> s, Isolate* isolate,
bool is_to_upper, const char* lang) {
auto case_converter = is_to_upper ? u_strToUpper : u_strToLower;
int32_t src_length = s->length();
int32_t dest_length = src_length;
UErrorCode status;
Handle<SeqTwoByteString> result;
std::unique_ptr<uc16[]> sap;
if (dest_length == 0) return ReadOnlyRoots(isolate).empty_string_handle();
// This is not a real loop. It'll be executed only once (no overflow) or
// twice (overflow).
for (int i = 0; i < 2; ++i) {
// Case conversion can increase the string length (e.g. sharp-S => SS) so
// that we have to handle RangeError exceptions here.
ASSIGN_RETURN_ON_EXCEPTION(
isolate, result, isolate->factory()->NewRawTwoByteString(dest_length),
String);
DisallowHeapAllocation no_gc;
DCHECK(s->IsFlat());
String::FlatContent flat = s->GetFlatContent();
const UChar* src = GetUCharBufferFromFlat(flat, &sap, src_length);
status = U_ZERO_ERROR;
dest_length = case_converter(reinterpret_cast<UChar*>(result->GetChars()),
dest_length, src, src_length, lang, &status);
if (status != U_BUFFER_OVERFLOW_ERROR) break;
}
// In most cases, the output will fill the destination buffer completely
// leading to an unterminated string (U_STRING_NOT_TERMINATED_WARNING).
// Only in rare cases, it'll be shorter than the destination buffer and
// |result| has to be truncated.
DCHECK(U_SUCCESS(status));
if (V8_LIKELY(status == U_STRING_NOT_TERMINATED_WARNING)) {
DCHECK(dest_length == result->length());
return result;
}
DCHECK(dest_length < result->length());
return SeqString::Truncate(result, dest_length);
}
// A stripped-down version of ConvertToLower that can only handle flat one-byte
// strings and does not allocate. Note that {src} could still be, e.g., a
// one-byte sliced string with a two-byte parent string.
// Called from TF builtins.
V8_WARN_UNUSED_RESULT String* ConvertOneByteToLower(String* src, String* dst) {
DCHECK_EQ(src->length(), dst->length());
DCHECK(src->HasOnlyOneByteChars());
DCHECK(src->IsFlat());
DCHECK(dst->IsSeqOneByteString());
DisallowHeapAllocation no_gc;
const int length = src->length();
String::FlatContent src_flat = src->GetFlatContent();
uint8_t* dst_data = SeqOneByteString::cast(dst)->GetChars();
if (src_flat.IsOneByte()) {
const uint8_t* src_data = src_flat.ToOneByteVector().start();
bool has_changed_character = false;
int index_to_first_unprocessed =
FastAsciiConvert<true>(reinterpret_cast<char*>(dst_data),
reinterpret_cast<const char*>(src_data), length,
&has_changed_character);
if (index_to_first_unprocessed == length) {
return has_changed_character ? dst : src;
}
// If not ASCII, we keep the result up to index_to_first_unprocessed and
// process the rest.
for (int index = index_to_first_unprocessed; index < length; ++index) {
dst_data[index] = ToLatin1Lower(static_cast<uint16_t>(src_data[index]));
}
} else {
DCHECK(src_flat.IsTwoByte());
int index_to_first_unprocessed = FindFirstUpperOrNonAscii(src, length);
if (index_to_first_unprocessed == length) return src;
const uint16_t* src_data = src_flat.ToUC16Vector().start();
CopyChars(dst_data, src_data, index_to_first_unprocessed);
for (int index = index_to_first_unprocessed; index < length; ++index) {
dst_data[index] = ToLatin1Lower(static_cast<uint16_t>(src_data[index]));
}
}
return dst;
}
MaybeHandle<String> ConvertToLower(Handle<String> s, Isolate* isolate) {
if (!s->HasOnlyOneByteChars()) {
// Use a slower implementation for strings with characters beyond U+00FF.
return LocaleConvertCase(s, isolate, false, "");
}
int length = s->length();
// We depend here on the invariant that the length of a Latin1
// string is invariant under ToLowerCase, and the result always
// fits in the Latin1 range in the *root locale*. It does not hold
// for ToUpperCase even in the root locale.
// Scan the string for uppercase and non-ASCII characters for strings
// shorter than a machine-word without any memory allocation overhead.
// TODO(jshin): Apply this to a longer input by breaking FastAsciiConvert()
// to two parts, one for scanning the prefix with no change and the other for
// handling ASCII-only characters.
bool is_short = length < static_cast<int>(sizeof(uintptr_t));
if (is_short) {
bool is_lower_ascii = FindFirstUpperOrNonAscii(*s, length) == length;
if (is_lower_ascii) return s;
}
Handle<SeqOneByteString> result =
isolate->factory()->NewRawOneByteString(length).ToHandleChecked();
return Handle<String>(ConvertOneByteToLower(*s, *result), isolate);
}
MaybeHandle<String> ConvertToUpper(Handle<String> s, Isolate* isolate) {
int32_t length = s->length();
if (s->HasOnlyOneByteChars() && length > 0) {
Handle<SeqOneByteString> result =
isolate->factory()->NewRawOneByteString(length).ToHandleChecked();
DCHECK(s->IsFlat());
int sharp_s_count;
bool is_result_single_byte;
{
DisallowHeapAllocation no_gc;
String::FlatContent flat = s->GetFlatContent();
uint8_t* dest = result->GetChars();
if (flat.IsOneByte()) {
Vector<const uint8_t> src = flat.ToOneByteVector();
bool has_changed_character = false;
int index_to_first_unprocessed =
FastAsciiConvert<false>(reinterpret_cast<char*>(result->GetChars()),
reinterpret_cast<const char*>(src.start()),
length, &has_changed_character);
if (index_to_first_unprocessed == length) {
return has_changed_character ? result : s;
}
// If not ASCII, we keep the result up to index_to_first_unprocessed and
// process the rest.
is_result_single_byte =
ToUpperOneByte(src.SubVector(index_to_first_unprocessed, length),
dest + index_to_first_unprocessed, &sharp_s_count);
} else {
DCHECK(flat.IsTwoByte());
Vector<const uint16_t> src = flat.ToUC16Vector();
if (ToUpperFastASCII(src, result)) return result;
is_result_single_byte = ToUpperOneByte(src, dest, &sharp_s_count);
}
}
// Go to the full Unicode path if there are characters whose uppercase
// is beyond the Latin-1 range (cannot be represented in OneByteString).
if (V8_UNLIKELY(!is_result_single_byte)) {
return LocaleConvertCase(s, isolate, true, "");
}
if (sharp_s_count == 0) return result;
// We have sharp_s_count sharp-s characters, but the result is still
// in the Latin-1 range.
ASSIGN_RETURN_ON_EXCEPTION(
isolate, result,
isolate->factory()->NewRawOneByteString(length + sharp_s_count),
String);
DisallowHeapAllocation no_gc;
String::FlatContent flat = s->GetFlatContent();
if (flat.IsOneByte()) {
ToUpperWithSharpS(flat.ToOneByteVector(), result);
} else {
ToUpperWithSharpS(flat.ToUC16Vector(), result);
}
return result;
}
return LocaleConvertCase(s, isolate, true, "");
}
MaybeHandle<String> ConvertCase(Handle<String> s, bool is_upper,
Isolate* isolate) {
return is_upper ? ConvertToUpper(s, isolate) : ConvertToLower(s, isolate);
}
ICUTimezoneCache::ICUTimezoneCache() : timezone_(nullptr) { Clear(); }
ICUTimezoneCache::~ICUTimezoneCache() { Clear(); }
const char* ICUTimezoneCache::LocalTimezone(double time_ms) {
bool is_dst = DaylightSavingsOffset(time_ms) != 0;
std::string* name = is_dst ? &dst_timezone_name_ : &timezone_name_;
if (name->empty()) {
icu::UnicodeString result;
GetTimeZone()->getDisplayName(is_dst, icu::TimeZone::LONG, result);
result += '\0';
icu::StringByteSink<std::string> byte_sink(name);
result.toUTF8(byte_sink);
}
DCHECK(!name->empty());
return name->c_str();
}
icu::TimeZone* ICUTimezoneCache::GetTimeZone() {
if (timezone_ == nullptr) {
timezone_ = icu::TimeZone::createDefault();
}
return timezone_;
}
bool ICUTimezoneCache::GetOffsets(double time_ms, bool is_utc,
int32_t* raw_offset, int32_t* dst_offset) {
UErrorCode status = U_ZERO_ERROR;
// TODO(jshin): ICU TimeZone class handles skipped time differently from
// Ecma 262 (https://github.com/tc39/ecma262/pull/778) and icu::TimeZone
// class does not expose the necessary API. Fixing
// http://bugs.icu-project.org/trac/ticket/13268 would make it easy to
// implement the proposed spec change. A proposed fix for ICU is
// https://chromium-review.googlesource.com/851265 .
// In the meantime, use an internal (still public) API of icu::BasicTimeZone.
// Once it's accepted by the upstream, get rid of cast. Note that casting
// TimeZone to BasicTimeZone is safe because we know that icu::TimeZone used
// here is a BasicTimeZone.
if (is_utc) {
GetTimeZone()->getOffset(time_ms, false, *raw_offset, *dst_offset, status);
} else {
static_cast<const icu::BasicTimeZone*>(GetTimeZone())
->getOffsetFromLocal(time_ms, icu::BasicTimeZone::kFormer,
icu::BasicTimeZone::kFormer, *raw_offset,
*dst_offset, status);
}
return U_SUCCESS(status);
}
double ICUTimezoneCache::DaylightSavingsOffset(double time_ms) {
int32_t raw_offset, dst_offset;
if (!GetOffsets(time_ms, true, &raw_offset, &dst_offset)) return 0;
return dst_offset;
}
double ICUTimezoneCache::LocalTimeOffset(double time_ms, bool is_utc) {
int32_t raw_offset, dst_offset;
if (!GetOffsets(time_ms, is_utc, &raw_offset, &dst_offset)) return 0;
return raw_offset + dst_offset;
}
void ICUTimezoneCache::Clear() {
delete timezone_;
timezone_ = nullptr;
timezone_name_.clear();
dst_timezone_name_.clear();
}
} // namespace internal
} // namespace v8

82
src/intl.h
View File

@ -1,82 +0,0 @@
// Copyright 2013 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.
#ifndef V8_INTL_SUPPORT
#error Internationalization is expected to be enabled.
#endif // V8_INTL_SUPPORT
#ifndef V8_INTL_H_
#define V8_INTL_H_
#include <string>
#include "src/base/timezone-cache.h"
#include "src/objects.h"
#include "src/objects/string.h"
#include "unicode/uversion.h"
namespace U_ICU_NAMESPACE {
class TimeZone;
}
namespace v8 {
namespace internal {
enum class ICUService {
kBreakIterator,
kCollator,
kDateFormat,
kNumberFormat,
kPluralRules,
kRelativeDateTimeFormatter,
kListFormatter,
kSegmenter
};
const UChar* GetUCharBufferFromFlat(const String::FlatContent& flat,
std::unique_ptr<uc16[]>* dest,
int32_t length);
MaybeHandle<String> LocaleConvertCase(Handle<String> s, Isolate* isolate,
bool is_to_upper, const char* lang);
MaybeHandle<String> ConvertToLower(Handle<String> s, Isolate* isolate);
MaybeHandle<String> ConvertToUpper(Handle<String> s, Isolate* isolate);
MaybeHandle<String> ConvertCase(Handle<String> s, bool is_upper,
Isolate* isolate);
V8_WARN_UNUSED_RESULT String* ConvertOneByteToLower(String* src, String* dst);
const uint8_t* ToLatin1LowerTable();
// ICUTimezoneCache calls out to ICU for TimezoneCache
// functionality in a straightforward way.
class ICUTimezoneCache : public base::TimezoneCache {
public:
ICUTimezoneCache();
~ICUTimezoneCache() override;
const char* LocalTimezone(double time_ms) override;
double DaylightSavingsOffset(double time_ms) override;
double LocalTimeOffset(double time_ms, bool is_utc) override;
void Clear() override;
private:
icu::TimeZone* GetTimeZone();
bool GetOffsets(double time_ms, bool is_utc, int32_t* raw_offset,
int32_t* dst_offset);
icu::TimeZone* timezone_;
std::string timezone_name_;
std::string dst_timezone_name_;
};
} // namespace internal
} // namespace v8
#endif // V8_INTL_H_

513
src/objects/intl-objects.cc
View File

@ -16,7 +16,6 @@
#include "src/api-inl.h"
#include "src/global-handles.h"
#include "src/heap/factory.h"
#include "src/intl.h"
#include "src/isolate.h"
#include "src/objects-inl.h"
#include "src/objects/js-collator-inl.h"
@ -24,6 +23,8 @@
#include "src/objects/js-number-format-inl.h"
#include "src/objects/string.h"
#include "src/property-descriptor.h"
#include "src/string-case.h"
#include "unicode/basictz.h"
#include "unicode/brkiter.h"
#include "unicode/coll.h"
#include "unicode/decimfmt.h"
@ -35,12 +36,344 @@
#include "unicode/timezone.h"
#include "unicode/ucol.h"
#include "unicode/ures.h"
#include "unicode/ustring.h"
#include "unicode/uvernum.h"
#include "unicode/uversion.h"
namespace v8 {
namespace internal {
namespace {
inline bool IsASCIIUpper(uint16_t ch) { return ch >= 'A' && ch <= 'Z'; }
const uint8_t kToLower[256] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23,
0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73,
0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B,
0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83,
0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B,
0x9C, 0x9D, 0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3,
0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB,
0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xD7,
0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3,
0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB,
0xFC, 0xFD, 0xFE, 0xFF,
};
inline uint16_t ToLatin1Lower(uint16_t ch) {
return static_cast<uint16_t>(kToLower[ch]);
}
inline uint16_t ToASCIIUpper(uint16_t ch) {
return ch & ~((ch >= 'a' && ch <= 'z') << 5);
}
// Does not work for U+00DF (sharp-s), U+00B5 (micron), U+00FF.
inline uint16_t ToLatin1Upper(uint16_t ch) {
DCHECK(ch != 0xDF && ch != 0xB5 && ch != 0xFF);
return ch &
~(((ch >= 'a' && ch <= 'z') || (((ch & 0xE0) == 0xE0) && ch != 0xF7))
<< 5);
}
template <typename Char>
bool ToUpperFastASCII(const Vector<const Char>& src,
Handle<SeqOneByteString> result) {
// Do a faster loop for the case where all the characters are ASCII.
uint16_t ored = 0;
int32_t index = 0;
for (auto it = src.begin(); it != src.end(); ++it) {
uint16_t ch = static_cast<uint16_t>(*it);
ored |= ch;
result->SeqOneByteStringSet(index++, ToASCIIUpper(ch));
}
return !(ored & ~0x7F);
}
const uint16_t sharp_s = 0xDF;
template <typename Char>
bool ToUpperOneByte(const Vector<const Char>& src, uint8_t* dest,
int* sharp_s_count) {
// Still pretty-fast path for the input with non-ASCII Latin-1 characters.
// There are two special cases.
// 1. U+00B5 and U+00FF are mapped to a character beyond U+00FF.
// 2. Lower case sharp-S converts to "SS" (two characters)
*sharp_s_count = 0;
for (auto it = src.begin(); it != src.end(); ++it) {
uint16_t ch = static_cast<uint16_t>(*it);
if (V8_UNLIKELY(ch == sharp_s)) {
++(*sharp_s_count);
continue;
}
if (V8_UNLIKELY(ch == 0xB5 || ch == 0xFF)) {
// Since this upper-cased character does not fit in an 8-bit string, we
// need to take the 16-bit path.
return false;
}
*dest++ = ToLatin1Upper(ch);
}
return true;
}
template <typename Char>
void ToUpperWithSharpS(const Vector<const Char>& src,
Handle<SeqOneByteString> result) {
int32_t dest_index = 0;
for (auto it = src.begin(); it != src.end(); ++it) {
uint16_t ch = static_cast<uint16_t>(*it);
if (ch == sharp_s) {
result->SeqOneByteStringSet(dest_index++, 'S');
result->SeqOneByteStringSet(dest_index++, 'S');
} else {
result->SeqOneByteStringSet(dest_index++, ToLatin1Upper(ch));
}
}
}
inline int FindFirstUpperOrNonAscii(String* s, int length) {
for (int index = 0; index < length; ++index) {
uint16_t ch = s->Get(index);
if (V8_UNLIKELY(IsASCIIUpper(ch) || ch & ~0x7F)) {
return index;
}
}
return length;
}
const UChar* GetUCharBufferFromFlat(const String::FlatContent& flat,
std::unique_ptr<uc16[]>* dest,
int32_t length) {
DCHECK(flat.IsFlat());
if (flat.IsOneByte()) {
if (!*dest) {
dest->reset(NewArray<uc16>(length));
CopyChars(dest->get(), flat.ToOneByteVector().start(), length);
}
return reinterpret_cast<const UChar*>(dest->get());
} else {
return reinterpret_cast<const UChar*>(flat.ToUC16Vector().start());
}
}
} // namespace
const uint8_t* Intl::ToLatin1LowerTable() { return &kToLower[0]; }
icu::UnicodeString Intl::ToICUUnicodeString(Isolate* isolate,
Handle<String> string) {
string = String::Flatten(isolate, string);
{
DisallowHeapAllocation no_gc;
std::unique_ptr<uc16[]> sap;
return icu::UnicodeString(GetUCharBufferFromFlat(string->GetFlatContent(),
&sap, string->length()),
string->length());
}
}
namespace {
MaybeHandle<String> LocaleConvertCase(Isolate* isolate, Handle<String> s,
bool is_to_upper, const char* lang) {
auto case_converter = is_to_upper ? u_strToUpper : u_strToLower;
int32_t src_length = s->length();
int32_t dest_length = src_length;
UErrorCode status;
Handle<SeqTwoByteString> result;
std::unique_ptr<uc16[]> sap;
if (dest_length == 0) return ReadOnlyRoots(isolate).empty_string_handle();
// This is not a real loop. It'll be executed only once (no overflow) or
// twice (overflow).
for (int i = 0; i < 2; ++i) {
// Case conversion can increase the string length (e.g. sharp-S => SS) so
// that we have to handle RangeError exceptions here.
ASSIGN_RETURN_ON_EXCEPTION(
isolate, result, isolate->factory()->NewRawTwoByteString(dest_length),
String);
DisallowHeapAllocation no_gc;
DCHECK(s->IsFlat());
String::FlatContent flat = s->GetFlatContent();
const UChar* src = GetUCharBufferFromFlat(flat, &sap, src_length);
status = U_ZERO_ERROR;
dest_length = case_converter(reinterpret_cast<UChar*>(result->GetChars()),
dest_length, src, src_length, lang, &status);
if (status != U_BUFFER_OVERFLOW_ERROR) break;
}
// In most cases, the output will fill the destination buffer completely
// leading to an unterminated string (U_STRING_NOT_TERMINATED_WARNING).
// Only in rare cases, it'll be shorter than the destination buffer and
// |result| has to be truncated.
DCHECK(U_SUCCESS(status));
if (V8_LIKELY(status == U_STRING_NOT_TERMINATED_WARNING)) {
DCHECK(dest_length == result->length());
return result;
}
DCHECK(dest_length < result->length());
return SeqString::Truncate(result, dest_length);
}
} // namespace
// A stripped-down version of ConvertToLower that can only handle flat one-byte
// strings and does not allocate. Note that {src} could still be, e.g., a
// one-byte sliced string with a two-byte parent string.
// Called from TF builtins.
String* Intl::ConvertOneByteToLower(String* src, String* dst) {
DCHECK_EQ(src->length(), dst->length());
DCHECK(src->HasOnlyOneByteChars());
DCHECK(src->IsFlat());
DCHECK(dst->IsSeqOneByteString());
DisallowHeapAllocation no_gc;
const int length = src->length();
String::FlatContent src_flat = src->GetFlatContent();
uint8_t* dst_data = SeqOneByteString::cast(dst)->GetChars();
if (src_flat.IsOneByte()) {
const uint8_t* src_data = src_flat.ToOneByteVector().start();
bool has_changed_character = false;
int index_to_first_unprocessed =
FastAsciiConvert<true>(reinterpret_cast<char*>(dst_data),
reinterpret_cast<const char*>(src_data), length,
&has_changed_character);
if (index_to_first_unprocessed == length) {
return has_changed_character ? dst : src;
}
// If not ASCII, we keep the result up to index_to_first_unprocessed and
// process the rest.
for (int index = index_to_first_unprocessed; index < length; ++index) {
dst_data[index] = ToLatin1Lower(static_cast<uint16_t>(src_data[index]));
}
} else {
DCHECK(src_flat.IsTwoByte());
int index_to_first_unprocessed = FindFirstUpperOrNonAscii(src, length);
if (index_to_first_unprocessed == length) return src;
const uint16_t* src_data = src_flat.ToUC16Vector().start();
CopyChars(dst_data, src_data, index_to_first_unprocessed);
for (int index = index_to_first_unprocessed; index < length; ++index) {
dst_data[index] = ToLatin1Lower(static_cast<uint16_t>(src_data[index]));
}
}
return dst;
}
MaybeHandle<String> Intl::ConvertToLower(Isolate* isolate, Handle<String> s) {
if (!s->HasOnlyOneByteChars()) {
// Use a slower implementation for strings with characters beyond U+00FF.
return LocaleConvertCase(isolate, s, false, "");
}
int length = s->length();
// We depend here on the invariant that the length of a Latin1
// string is invariant under ToLowerCase, and the result always
// fits in the Latin1 range in the *root locale*. It does not hold
// for ToUpperCase even in the root locale.
// Scan the string for uppercase and non-ASCII characters for strings
// shorter than a machine-word without any memory allocation overhead.
// TODO(jshin): Apply this to a longer input by breaking FastAsciiConvert()
// to two parts, one for scanning the prefix with no change and the other for
// handling ASCII-only characters.
bool is_short = length < static_cast<int>(sizeof(uintptr_t));
if (is_short) {
bool is_lower_ascii = FindFirstUpperOrNonAscii(*s, length) == length;
if (is_lower_ascii) return s;
}
Handle<SeqOneByteString> result =
isolate->factory()->NewRawOneByteString(length).ToHandleChecked();
return Handle<String>(Intl::ConvertOneByteToLower(*s, *result), isolate);
}
MaybeHandle<String> Intl::ConvertToUpper(Isolate* isolate, Handle<String> s) {
int32_t length = s->length();
if (s->HasOnlyOneByteChars() && length > 0) {
Handle<SeqOneByteString> result =
isolate->factory()->NewRawOneByteString(length).ToHandleChecked();
DCHECK(s->IsFlat());
int sharp_s_count;
bool is_result_single_byte;
{
DisallowHeapAllocation no_gc;
String::FlatContent flat = s->GetFlatContent();
uint8_t* dest = result->GetChars();
if (flat.IsOneByte()) {
Vector<const uint8_t> src = flat.ToOneByteVector();
bool has_changed_character = false;
int index_to_first_unprocessed =
FastAsciiConvert<false>(reinterpret_cast<char*>(result->GetChars()),
reinterpret_cast<const char*>(src.start()),
length, &has_changed_character);
if (index_to_first_unprocessed == length) {
return has_changed_character ? result : s;
}
// If not ASCII, we keep the result up to index_to_first_unprocessed and
// process the rest.
is_result_single_byte =
ToUpperOneByte(src.SubVector(index_to_first_unprocessed, length),
dest + index_to_first_unprocessed, &sharp_s_count);
} else {
DCHECK(flat.IsTwoByte());
Vector<const uint16_t> src = flat.ToUC16Vector();
if (ToUpperFastASCII(src, result)) return result;
is_result_single_byte = ToUpperOneByte(src, dest, &sharp_s_count);
}
}
// Go to the full Unicode path if there are characters whose uppercase
// is beyond the Latin-1 range (cannot be represented in OneByteString).
if (V8_UNLIKELY(!is_result_single_byte)) {
return LocaleConvertCase(isolate, s, true, "");
}
if (sharp_s_count == 0) return result;
// We have sharp_s_count sharp-s characters, but the result is still
// in the Latin-1 range.
ASSIGN_RETURN_ON_EXCEPTION(
isolate, result,
isolate->factory()->NewRawOneByteString(length + sharp_s_count),
String);
DisallowHeapAllocation no_gc;
String::FlatContent flat = s->GetFlatContent();
if (flat.IsOneByte()) {
ToUpperWithSharpS(flat.ToOneByteVector(), result);
} else {
ToUpperWithSharpS(flat.ToUC16Vector(), result);
}
return result;
}
return LocaleConvertCase(isolate, s, true, "");
}
std::string Intl::GetNumberingSystem(const icu::Locale& icu_locale) {
// Ugly hack. ICU doesn't expose numbering system in any way, so we have
// to assume that for given locale NumberingSystem constructor produces the
@ -177,27 +510,27 @@ bool RemoveLocaleScriptTag(const std::string& icu_locale,
} // namespace
std::set<std::string> Intl::GetAvailableLocales(const ICUService service) {
std::set<std::string> Intl::GetAvailableLocales(Intl::ICUService service) {
const icu::Locale* icu_available_locales = nullptr;
int32_t count = 0;
std::set<std::string> locales;
switch (service) {
case ICUService::kBreakIterator:
case ICUService::kSegmenter:
case Intl::ICUService::kBreakIterator:
case Intl::ICUService::kSegmenter:
icu_available_locales = icu::BreakIterator::getAvailableLocales(count);
break;
case ICUService::kCollator:
case Intl::ICUService::kCollator:
icu_available_locales = icu::Collator::getAvailableLocales(count);
break;
case ICUService::kRelativeDateTimeFormatter:
case ICUService::kDateFormat:
case Intl::ICUService::kRelativeDateTimeFormatter:
case Intl::ICUService::kDateFormat:
icu_available_locales = icu::DateFormat::getAvailableLocales(count);
break;
case ICUService::kNumberFormat:
case Intl::ICUService::kNumberFormat:
icu_available_locales = icu::NumberFormat::getAvailableLocales(count);
break;
case ICUService::kPluralRules:
case Intl::ICUService::kPluralRules:
// TODO(littledan): For PluralRules, filter out locales that
// don't support PluralRules.
// PluralRules is missing an appropriate getAvailableLocales method,
@ -205,7 +538,7 @@ std::set<std::string> Intl::GetAvailableLocales(const ICUService service) {
// https://ssl.icu-project.org/trac/ticket/12756
icu_available_locales = icu::Locale::getAvailableLocales(count);
break;
case ICUService::kListFormatter: {
case Intl::ICUService::kListFormatter: {
// TODO(ftang): for now just use
// icu::Locale::getAvailableLocales(count) until we migrate to
// Intl::GetAvailableLocales().
@ -243,23 +576,23 @@ std::set<std::string> Intl::GetAvailableLocales(const ICUService service) {
namespace {
const char* ICUServiceToString(ICUService service) {
const char* ICUServiceToString(Intl::ICUService service) {
switch (service) {
case ICUService::kCollator:
case Intl::ICUService::kCollator:
return "Intl.Collator";
case ICUService::kNumberFormat:
case Intl::ICUService::kNumberFormat:
return "Intl.NumberFormat";
case ICUService::kDateFormat:
case Intl::ICUService::kDateFormat:
return "Intl.DateFormat";
case ICUService::kBreakIterator:
case Intl::ICUService::kBreakIterator:
return "Intl.v8BreakIterator";
case ICUService::kPluralRules:
case Intl::ICUService::kPluralRules:
return "Intl.PluralRules";
case ICUService::kRelativeDateTimeFormatter:
case Intl::ICUService::kRelativeDateTimeFormatter:
return "Intl.RelativeTimeFormat";
case ICUService::kListFormatter:
case Intl::ICUService::kListFormatter:
return "Intl.kListFormat";
case ICUService::kSegmenter:
case Intl::ICUService::kSegmenter:
return "Intl.kSegmenter";
}
UNREACHABLE();
@ -857,7 +1190,10 @@ MaybeHandle<String> Intl::StringLocaleConvertCase(Isolate* isolate,
// tags (x-foo) or grandfathered irregular tags (e.g. i-enochian) would have
// only 'x' or 'i' when they get here.
if (V8_UNLIKELY(requested_locale.length() != 2)) {
return ConvertCase(s, to_upper, isolate);
if (to_upper) {
return ConvertToUpper(isolate, s);
}
return ConvertToLower(isolate, s);
}
// TODO(jshin): Consider adding a fast path for ASCII or Latin-1. The fastpath
// in the root locale needs to be adjusted for az, lt and tr because even case
@ -865,9 +1201,12 @@ MaybeHandle<String> Intl::StringLocaleConvertCase(Isolate* isolate,
// Greek (el) does not require any adjustment.
if (V8_UNLIKELY((requested_locale == "tr") || (requested_locale == "el") ||
(requested_locale == "lt") || (requested_locale == "az"))) {
return LocaleConvertCase(s, isolate, to_upper, requested_locale.c_str());
return LocaleConvertCase(isolate, s, to_upper, requested_locale.c_str());
} else {
return ConvertCase(s, to_upper, isolate);
if (to_upper) {
return ConvertToUpper(isolate, s);
}
return ConvertToLower(isolate, s);
}
}
@ -902,20 +1241,9 @@ Handle<Object> Intl::CompareStrings(Isolate* isolate,
UCollationResult result;
UErrorCode status = U_ZERO_ERROR;
{
DisallowHeapAllocation no_gc;
int32_t length1 = string1->length();
int32_t length2 = string2->length();
String::FlatContent flat1 = string1->GetFlatContent();
String::FlatContent flat2 = string2->GetFlatContent();
std::unique_ptr<uc16[]> sap1;
std::unique_ptr<uc16[]> sap2;
icu::UnicodeString string_val1(
FALSE, GetUCharBufferFromFlat(flat1, &sap1, length1), length1);
icu::UnicodeString string_val2(
FALSE, GetUCharBufferFromFlat(flat2, &sap2, length2), length2);
icu::UnicodeString string_val1 = Intl::ToICUUnicodeString(isolate, string1);
icu::UnicodeString string_val2 = Intl::ToICUUnicodeString(isolate, string2);
result = icu_collator->compare(string_val1, string_val2, status);
}
DCHECK(U_SUCCESS(status));
return factory->NewNumberFromInt(result);
@ -1291,7 +1619,7 @@ MaybeHandle<JSObject> CreateReadOnlyArray(Isolate* isolate,
// ECMA 402 9.2.9 SupportedLocales(availableLocales, requestedLocales, options)
// https://tc39.github.io/ecma402/#sec-supportedlocales
MaybeHandle<JSObject> SupportedLocales(
Isolate* isolate, ICUService service,
Isolate* isolate, Intl::ICUService service,
const std::set<std::string>& available_locales,
const std::vector<std::string>& requested_locales, Handle<Object> options) {
std::vector<std::string> supported_locales;
@ -1370,7 +1698,7 @@ MaybeHandle<JSArray> Intl::GetCanonicalLocales(Isolate* isolate,
// ECMA 402 Intl.*.supportedLocalesOf
MaybeHandle<JSObject> Intl::SupportedLocalesOf(Isolate* isolate,
ICUService service,
Intl::ICUService service,
Handle<Object> locales,
Handle<Object> options) {
// Let availableLocales be %Collator%.[[AvailableLocales]].
@ -1518,16 +1846,8 @@ Intl::ResolvedLocale Intl::ResolveLocale(
Managed<icu::UnicodeString>* Intl::SetTextToBreakIterator(
Isolate* isolate, Handle<String> text, icu::BreakIterator* break_iterator) {
icu::UnicodeString* u_text;
int length = text->length();
text = String::Flatten(isolate, text);
{
DisallowHeapAllocation no_gc;
String::FlatContent flat = text->GetFlatContent();
std::unique_ptr<uc16[]> sap;
const UChar* text_value = GetUCharBufferFromFlat(flat, &sap, length);
u_text = new icu::UnicodeString(text_value, length);
}
icu::UnicodeString* u_text =
(icu::UnicodeString*)(Intl::ToICUUnicodeString(isolate, text).clone());
Handle<Managed<icu::UnicodeString>> new_u_text =
Managed<icu::UnicodeString>::FromRawPtr(isolate, 0, u_text);
@ -1536,5 +1856,104 @@ Managed<icu::UnicodeString>* Intl::SetTextToBreakIterator(
return *new_u_text;
}
// ICUTimezoneCache calls out to ICU for TimezoneCache
// functionality in a straightforward way.
class ICUTimezoneCache : public base::TimezoneCache {
public:
ICUTimezoneCache() : timezone_(nullptr) { Clear(); }
~ICUTimezoneCache() override { Clear(); };
const char* LocalTimezone(double time_ms) override;
double DaylightSavingsOffset(double time_ms) override;
double LocalTimeOffset(double time_ms, bool is_utc) override;
void Clear() override;
private:
icu::TimeZone* GetTimeZone();
bool GetOffsets(double time_ms, bool is_utc, int32_t* raw_offset,
int32_t* dst_offset);
icu::TimeZone* timezone_;
std::string timezone_name_;
std::string dst_timezone_name_;
};
const char* ICUTimezoneCache::LocalTimezone(double time_ms) {
bool is_dst = DaylightSavingsOffset(time_ms) != 0;
std::string* name = is_dst ? &dst_timezone_name_ : &timezone_name_;
if (name->empty()) {
icu::UnicodeString result;
GetTimeZone()->getDisplayName(is_dst, icu::TimeZone::LONG, result);
result += '\0';
icu::StringByteSink<std::string> byte_sink(name);
result.toUTF8(byte_sink);
}
DCHECK(!name->empty());
return name->c_str();
}
icu::TimeZone* ICUTimezoneCache::GetTimeZone() {
if (timezone_ == nullptr) {
timezone_ = icu::TimeZone::createDefault();
}
return timezone_;
}
bool ICUTimezoneCache::GetOffsets(double time_ms, bool is_utc,
int32_t* raw_offset, int32_t* dst_offset) {
UErrorCode status = U_ZERO_ERROR;
// TODO(jshin): ICU TimeZone class handles skipped time differently from
// Ecma 262 (https://github.com/tc39/ecma262/pull/778) and icu::TimeZone
// class does not expose the necessary API. Fixing
// http://bugs.icu-project.org/trac/ticket/13268 would make it easy to
// implement the proposed spec change. A proposed fix for ICU is
// https://chromium-review.googlesource.com/851265 .
// In the meantime, use an internal (still public) API of icu::BasicTimeZone.
// Once it's accepted by the upstream, get rid of cast. Note that casting
// TimeZone to BasicTimeZone is safe because we know that icu::TimeZone used
// here is a BasicTimeZone.
if (is_utc) {
GetTimeZone()->getOffset(time_ms, false, *raw_offset, *dst_offset, status);
} else {
static_cast<const icu::BasicTimeZone*>(GetTimeZone())
->getOffsetFromLocal(time_ms, icu::BasicTimeZone::kFormer,
icu::BasicTimeZone::kFormer, *raw_offset,
*dst_offset, status);
}
return U_SUCCESS(status);
}
double ICUTimezoneCache::DaylightSavingsOffset(double time_ms) {
int32_t raw_offset, dst_offset;
if (!GetOffsets(time_ms, true, &raw_offset, &dst_offset)) return 0;
return dst_offset;
}
double ICUTimezoneCache::LocalTimeOffset(double time_ms, bool is_utc) {
int32_t raw_offset, dst_offset;
if (!GetOffsets(time_ms, is_utc, &raw_offset, &dst_offset)) return 0;
return raw_offset + dst_offset;
}
void ICUTimezoneCache::Clear() {
delete timezone_;
timezone_ = nullptr;
timezone_name_.clear();
dst_timezone_name_.clear();
}
base::TimezoneCache* Intl::CreateTimeZoneCache() {
return FLAG_icu_timezone_data ? new ICUTimezoneCache()
: base::OS::CreateTimezoneCache();
}
} // namespace internal
} // namespace v8

29
src/objects/intl-objects.h
View File

@ -13,8 +13,8 @@
#include <set>
#include <string>
#include "src/base/timezone-cache.h"
#include "src/contexts.h"
#include "src/intl.h"
#include "src/objects.h"
#include "src/objects/managed.h"
#include "unicode/locid.h"
@ -41,6 +41,17 @@ class Intl {
kLength
};
enum class ICUService {
kBreakIterator,
kCollator,
kDateFormat,
kNumberFormat,
kPluralRules,
kRelativeDateTimeFormatter,
kListFormatter,
kSegmenter
};
// Gets the ICU locales for a given service. If there is a locale with a
// script tag then the locales also include a locale without the script; eg,
// pa_Guru_IN (language=Panjabi, script=Gurmukhi, country-India) would include
@ -117,6 +128,12 @@ class Intl {
Isolate* isolate, Handle<String> s, bool is_upper,
Handle<Object> locales);
V8_WARN_UNUSED_RESULT static MaybeHandle<String> ConvertToUpper(
Isolate* isolate, Handle<String> s);
V8_WARN_UNUSED_RESULT static MaybeHandle<String> ConvertToLower(
Isolate* isolate, Handle<String> s);
V8_WARN_UNUSED_RESULT static MaybeHandle<Object> StringLocaleCompare(
Isolate* isolate, Handle<String> s1, Handle<String> s2,
Handle<Object> locales, Handle<Object> options);
@ -198,6 +215,16 @@ class Intl {
static Managed<icu::UnicodeString>* SetTextToBreakIterator(
Isolate* isolate, Handle<String> text,
icu::BreakIterator* break_iterator);
static base::TimezoneCache* CreateTimeZoneCache();
// Convert a Handle<String> to icu::UnicodeString
static icu::UnicodeString ToICUUnicodeString(Isolate* isolate,
Handle<String> string);
static const uint8_t* ToLatin1LowerTable();
static String* ConvertOneByteToLower(String* src, String* dst);
};
} // namespace internal

2
src/objects/js-break-iterator.cc
View File

@ -60,7 +60,7 @@ MaybeHandle<JSV8BreakIterator> JSV8BreakIterator::Initialize(
}
}
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kBreakIterator);
Intl::GetAvailableLocales(Intl::ICUService::kBreakIterator);
Intl::ResolvedLocale r = Intl::ResolveLocale(isolate, available_locales,
requested_locales, matcher, {});

2
src/objects/js-collator.cc
View File

@ -309,7 +309,7 @@ MaybeHandle<JSCollator> JSCollator::Initialize(Isolate* isolate,
// requestedLocales, opt, %Collator%.[[RelevantExtensionKeys]],
// localeData).
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kCollator);
Intl::GetAvailableLocales(Intl::ICUService::kCollator);
Intl::ResolvedLocale r =
Intl::ResolveLocale(isolate, available_locales, requested_locales,
matcher, relevant_extension_keys);

2
src/objects/js-date-time-format.cc
View File

@ -785,7 +785,7 @@ MaybeHandle<JSDateTimeFormat> JSDateTimeFormat::Initialize(
// requestedLocales, opt, %DateTimeFormat%.[[RelevantExtensionKeys]],
// localeData).
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kDateFormat);
Intl::GetAvailableLocales(Intl::ICUService::kDateFormat);
Intl::ResolvedLocale r = Intl::ResolveLocale(
isolate, available_locales, requested_locales, locale_matcher, {"nu"});

10
src/objects/js-list-format.cc
View File

@ -203,7 +203,7 @@ MaybeHandle<JSListFormat> JSListFormat::Initialize(
// 15. Let r be ResolveLocale(%ListFormat%.[[AvailableLocales]],
// requestedLocales, opt, undefined, localeData).
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kListFormatter);
Intl::GetAvailableLocales(Intl::ICUService::kListFormatter);
Intl::ResolvedLocale r = Intl::ResolveLocale(isolate, available_locales,
requested_locales, matcher, {});
@ -353,13 +353,7 @@ Maybe<bool> ToUnicodeStringArray(Isolate* isolate, Handle<JSArray> array,
}
for (uint32_t i = 0; i < length; i++) {
Handle<String> string = Handle<String>::cast(accessor->Get(array, i));
DisallowHeapAllocation no_gc;
string = String::Flatten(isolate, string);
std::unique_ptr<uc16[]> sap;
items[i] =
icu::UnicodeString(GetUCharBufferFromFlat(string->GetFlatContent(),
&sap, string->length()),
string->length());
items[i] = Intl::ToICUUnicodeString(isolate, string);
}
return Just(true);
}

2
src/objects/js-number-format.cc
View File

@ -235,7 +235,7 @@ MaybeHandle<JSNumberFormat> JSNumberFormat::Initialize(
// requestedLocales, opt, %NumberFormat%.[[RelevantExtensionKeys]],
// localeData).
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kNumberFormat);
Intl::GetAvailableLocales(Intl::ICUService::kNumberFormat);
std::set<std::string> relevant_extension_keys{"nu"};
Intl::ResolvedLocale r =
Intl::ResolveLocale(isolate, available_locales, requested_locales,

2
src/objects/js-plural-rules.cc
View File

@ -152,7 +152,7 @@ MaybeHandle<JSPluralRules> JSPluralRules::Initialize(
// requestedLocales, opt, %PluralRules%.[[RelevantExtensionKeys]],
// localeData).
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kPluralRules);
Intl::GetAvailableLocales(Intl::ICUService::kPluralRules);
Intl::ResolvedLocale r = Intl::ResolveLocale(isolate, available_locales,
requested_locales, matcher, {});

2
src/objects/js-relative-time-format.cc
View File

@ -103,7 +103,7 @@ MaybeHandle<JSRelativeTimeFormat> JSRelativeTimeFormat::Initialize(
// requestedLocales, opt,
// %RelativeTimeFormat%.[[RelevantExtensionKeys]], localeData).
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kRelativeDateTimeFormatter);
Intl::GetAvailableLocales(Intl::ICUService::kRelativeDateTimeFormatter);
Intl::ResolvedLocale r = Intl::ResolveLocale(isolate, available_locales,
requested_locales, matcher, {});

1
src/objects/js-segment-iterator.cc
View File

@ -13,7 +13,6 @@
#include <string>
#include "src/heap/factory.h"
#include "src/intl.h"
#include "src/isolate.h"
#include "src/objects-inl.h"
#include "src/objects/intl-objects.h"

2
src/objects/js-segmenter.cc
View File

@ -86,7 +86,7 @@ MaybeHandle<JSSegmenter> JSSegmenter::Initialize(
// 9. Let r be ResolveLocale(%Segmenter%.[[AvailableLocales]],
// requestedLocales, opt, %Segmenter%.[[RelevantExtensionKeys]]).
std::set<std::string> available_locales =
Intl::GetAvailableLocales(ICUService::kSegmenter);
Intl::GetAvailableLocales(Intl::ICUService::kSegmenter);
Intl::ResolvedLocale r = Intl::ResolveLocale(isolate, available_locales,
requested_locales, matcher, {});

5
src/runtime/runtime-intl.cc
View File

@ -15,7 +15,6 @@
#include "src/date.h"
#include "src/global-handles.h"
#include "src/heap/factory.h"
#include "src/intl.h"
#include "src/isolate-inl.h"
#include "src/objects/intl-objects.h"
#include "src/objects/js-array-inl.h"
@ -103,7 +102,7 @@ RUNTIME_FUNCTION(Runtime_StringToLowerCaseIntl) {
DCHECK_EQ(args.length(), 1);
CONVERT_ARG_HANDLE_CHECKED(String, s, 0);
s = String::Flatten(isolate, s);
RETURN_RESULT_OR_FAILURE(isolate, ConvertToLower(s, isolate));
RETURN_RESULT_OR_FAILURE(isolate, Intl::ConvertToLower(isolate, s));
}
RUNTIME_FUNCTION(Runtime_StringToUpperCaseIntl) {
@ -111,7 +110,7 @@ RUNTIME_FUNCTION(Runtime_StringToUpperCaseIntl) {
DCHECK_EQ(args.length(), 1);
CONVERT_ARG_HANDLE_CHECKED(String, s, 0);
s = String::Flatten(isolate, s);
RETURN_RESULT_OR_FAILURE(isolate, ConvertToUpper(s, isolate));
RETURN_RESULT_OR_FAILURE(isolate, Intl::ConvertToUpper(isolate, s));
}
RUNTIME_FUNCTION(Runtime_DateCacheVersion) {

13
test/cctest/test-intl.cc
View File

@ -211,23 +211,24 @@ TEST(GetBoolOption) {
TEST(GetAvailableLocales) {
std::set<std::string> locales;
locales = Intl::GetAvailableLocales(ICUService::kBreakIterator);
locales = Intl::GetAvailableLocales(Intl::ICUService::kBreakIterator);
CHECK(locales.count("en-US"));
CHECK(!locales.count("abcdefg"));
locales = Intl::GetAvailableLocales(ICUService::kCollator);
locales = Intl::GetAvailableLocales(Intl::ICUService::kCollator);
CHECK(locales.count("en-US"));
locales = Intl::GetAvailableLocales(ICUService::kDateFormat);
locales = Intl::GetAvailableLocales(Intl::ICUService::kDateFormat);
CHECK(locales.count("en-US"));
locales = Intl::GetAvailableLocales(ICUService::kNumberFormat);
locales = Intl::GetAvailableLocales(Intl::ICUService::kNumberFormat);
CHECK(locales.count("en-US"));
locales = Intl::GetAvailableLocales(ICUService::kPluralRules);
locales = Intl::GetAvailableLocales(Intl::ICUService::kPluralRules);
CHECK(locales.count("en-US"));
locales = Intl::GetAvailableLocales(ICUService::kRelativeDateTimeFormatter);
locales =
Intl::GetAvailableLocales(Intl::ICUService::kRelativeDateTimeFormatter);
CHECK(locales.count("en-US"));
}