Feodor2
/
Mypal
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Mypal/js/src/builtin/Intl.cpp

3260 lines
106 KiB
C++
Raw Blame History

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* The Intl module specified by standard ECMA-402,
* ECMAScript Internationalization API Specification.
*/
#include "builtin/Intl.h"
#include "mozilla/Casting.h"
#include "mozilla/PodOperations.h"
#include "mozilla/Range.h"
#include "mozilla/ScopeExit.h"
#include <string.h>
#include "jsapi.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsobj.h"
#include "builtin/IntlTimeZoneData.h"
#include "unicode/plurrule.h"
#include "unicode/ucal.h"
#include "unicode/ucol.h"
#include "unicode/udat.h"
#include "unicode/udatpg.h"
#include "unicode/uenum.h"
#include "unicode/unum.h"
#include "unicode/unumsys.h"
#include "unicode/upluralrules.h"
#include "unicode/ustring.h"
#include "vm/DateTime.h"
#include "vm/GlobalObject.h"
#include "vm/Interpreter.h"
#include "vm/Stack.h"
#include "vm/StringBuffer.h"
#include "vm/Unicode.h"
#include "jsobjinlines.h"
#include "vm/NativeObject-inl.h"
using namespace js;
using mozilla::AssertedCast;
using mozilla::IsFinite;
using mozilla::IsNegativeZero;
using mozilla::MakeScopeExit;
using mozilla::PodCopy;
/*
* Pervasive note: ICU functions taking a UErrorCode in/out parameter always
* test that parameter before doing anything, and will return immediately if
* the value indicates that a failure occurred in a prior ICU call,
* without doing anything else. See
* http://userguide.icu-project.org/design#TOC-Error-Handling
*/
/******************** Common to Intl constructors ********************/
static bool
IntlInitialize(JSContext* cx, HandleObject obj, Handle<PropertyName*> initializer,
HandleValue locales, HandleValue options)
{
RootedValue initializerValue(cx);
if (!GlobalObject::getIntrinsicValue(cx, cx->global(), initializer, &initializerValue))
return false;
MOZ_ASSERT(initializerValue.isObject());
MOZ_ASSERT(initializerValue.toObject().is<JSFunction>());
FixedInvokeArgs<3> args(cx);
args[0].setObject(*obj);
args[1].set(locales);
args[2].set(options);
RootedValue thisv(cx, NullValue());
RootedValue ignored(cx);
return js::Call(cx, initializerValue, thisv, args, &ignored);
}
static bool
CreateDefaultOptions(JSContext* cx, MutableHandleValue defaultOptions)
{
RootedObject options(cx, NewObjectWithGivenProto<PlainObject>(cx, nullptr));
if (!options)
return false;
defaultOptions.setObject(*options);
return true;
}
// CountAvailable and GetAvailable describe the signatures used for ICU API
// to determine available locales for various functionality.
typedef int32_t
(* CountAvailable)();
typedef const char*
(* GetAvailable)(int32_t localeIndex);
static bool
intl_availableLocales(JSContext* cx, CountAvailable countAvailable,
GetAvailable getAvailable, MutableHandleValue result)
{
RootedObject locales(cx, NewObjectWithGivenProto<PlainObject>(cx, nullptr));
if (!locales)
return false;
uint32_t count = countAvailable();
RootedValue t(cx, BooleanValue(true));
for (uint32_t i = 0; i < count; i++) {
const char* locale = getAvailable(i);
auto lang = DuplicateString(cx, locale);
if (!lang)
return false;
char* p;
while ((p = strchr(lang.get(), '_')))
*p = '-';
RootedAtom a(cx, Atomize(cx, lang.get(), strlen(lang.get())));
if (!a)
return false;
if (!DefineProperty(cx, locales, a->asPropertyName(), t, nullptr, nullptr,
JSPROP_ENUMERATE))
{
return false;
}
}
result.setObject(*locales);
return true;
}
/**
* Returns the object holding the internal properties for obj.
*/
static JSObject*
GetInternals(JSContext* cx, HandleObject obj)
{
RootedValue getInternalsValue(cx);
if (!GlobalObject::getIntrinsicValue(cx, cx->global(), cx->names().getInternals,
&getInternalsValue))
{
return nullptr;
}
MOZ_ASSERT(getInternalsValue.isObject());
MOZ_ASSERT(getInternalsValue.toObject().is<JSFunction>());
FixedInvokeArgs<1> args(cx);
args[0].setObject(*obj);
RootedValue v(cx, NullValue());
if (!js::Call(cx, getInternalsValue, v, args, &v))
return nullptr;
return &v.toObject();
}
static bool
equal(const char* s1, const char* s2)
{
return !strcmp(s1, s2);
}
static bool
equal(JSAutoByteString& s1, const char* s2)
{
return !strcmp(s1.ptr(), s2);
}
static const char*
icuLocale(const char* locale)
{
if (equal(locale, "und"))
return ""; // ICU root locale
return locale;
}
// Simple RAII for ICU objects. Unfortunately, ICU's C++ API is uniformly
// unstable, so we can't use its smart pointers for this.
template <typename T, void (Delete)(T*)>
class ScopedICUObject
{
T* ptr_;
public:
explicit ScopedICUObject(T* ptr)
: ptr_(ptr)
{}
~ScopedICUObject() {
if (ptr_)
Delete(ptr_);
}
// In cases where an object should be deleted on abnormal exits,
// but returned to the caller if everything goes well, call forget()
// to transfer the object just before returning.
T* forget() {
T* tmp = ptr_;
ptr_ = nullptr;
return tmp;
}
};
// The inline capacity we use for the char16_t Vectors.
static const size_t INITIAL_CHAR_BUFFER_SIZE = 32;
/******************** Collator ********************/
static void collator_finalize(FreeOp* fop, JSObject* obj);
static const uint32_t UCOLLATOR_SLOT = 0;
static const uint32_t COLLATOR_SLOTS_COUNT = 1;
static const ClassOps CollatorClassOps = {
nullptr, /* addProperty */
nullptr, /* delProperty */
nullptr, /* getProperty */
nullptr, /* setProperty */
nullptr, /* enumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
collator_finalize
};
static const Class CollatorClass = {
js_Object_str,
JSCLASS_HAS_RESERVED_SLOTS(COLLATOR_SLOTS_COUNT) |
JSCLASS_FOREGROUND_FINALIZE,
&CollatorClassOps
};
#if JS_HAS_TOSOURCE
static bool
collator_toSource(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
args.rval().setString(cx->names().Collator);
return true;
}
#endif
static const JSFunctionSpec collator_static_methods[] = {
JS_SELF_HOSTED_FN("supportedLocalesOf", "Intl_Collator_supportedLocalesOf", 1, 0),
JS_FS_END
};
static const JSFunctionSpec collator_methods[] = {
JS_SELF_HOSTED_FN("resolvedOptions", "Intl_Collator_resolvedOptions", 0, 0),
#if JS_HAS_TOSOURCE
JS_FN(js_toSource_str, collator_toSource, 0, 0),
#endif
JS_FS_END
};
/**
* 10.1.2 Intl.Collator([ locales [, options]])
*
* ES2017 Intl draft rev 94045d234762ad107a3d09bb6f7381a65f1a2f9b
*/
static bool
Collator(JSContext* cx, const CallArgs& args, bool construct)
{
RootedObject obj(cx);
// We're following ECMA-402 1st Edition when Collator is called because of
// backward compatibility issues.
// See https://github.com/tc39/ecma402/issues/57
if (!construct) {
// ES Intl 1st ed., 10.1.2.1 step 3
JSObject* intl = GlobalObject::getOrCreateIntlObject(cx, cx->global());
if (!intl)
return false;
RootedValue self(cx, args.thisv());
if (!self.isUndefined() && (!self.isObject() || self.toObject() != *intl)) {
// ES Intl 1st ed., 10.1.2.1 step 4
obj = ToObject(cx, self);
if (!obj)
return false;
// ES Intl 1st ed., 10.1.2.1 step 5
bool extensible;
if (!IsExtensible(cx, obj, &extensible))
return false;
if (!extensible)
return Throw(cx, obj, JSMSG_OBJECT_NOT_EXTENSIBLE);
} else {
// ES Intl 1st ed., 10.1.2.1 step 3.a
construct = true;
}
}
if (construct) {
// Steps 2-5 (Inlined 9.1.14, OrdinaryCreateFromConstructor).
RootedObject proto(cx);
if (args.isConstructing() && !GetPrototypeFromCallableConstructor(cx, args, &proto))
return false;
if (!proto) {
proto = GlobalObject::getOrCreateCollatorPrototype(cx, cx->global());
if (!proto)
return false;
}
obj = NewObjectWithGivenProto(cx, &CollatorClass, proto);
if (!obj)
return false;
obj->as<NativeObject>().setReservedSlot(UCOLLATOR_SLOT, PrivateValue(nullptr));
}
RootedValue locales(cx, args.length() > 0 ? args[0] : UndefinedValue());
RootedValue options(cx, args.length() > 1 ? args[1] : UndefinedValue());
// Step 6.
if (!IntlInitialize(cx, obj, cx->names().InitializeCollator, locales, options))
return false;
args.rval().setObject(*obj);
return true;
}
static bool
Collator(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
return Collator(cx, args, args.isConstructing());
}
bool
js::intl_Collator(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 2);
MOZ_ASSERT(!args.isConstructing());
// intl_Collator is an intrinsic for self-hosted JavaScript, so it cannot
// be used with "new", but it still has to be treated as a constructor.
return Collator(cx, args, true);
}
static void
collator_finalize(FreeOp* fop, JSObject* obj)
{
MOZ_ASSERT(fop->onMainThread());
// This is-undefined check shouldn't be necessary, but for internal
// brokenness in object allocation code. For the moment, hack around it by
// explicitly guarding against the possibility of the reserved slot not
// containing a private. See bug 949220.
const Value& slot = obj->as<NativeObject>().getReservedSlot(UCOLLATOR_SLOT);
if (!slot.isUndefined()) {
if (UCollator* coll = static_cast<UCollator*>(slot.toPrivate()))
ucol_close(coll);
}
}
static JSObject*
CreateCollatorPrototype(JSContext* cx, HandleObject Intl, Handle<GlobalObject*> global)
{
RootedFunction ctor(cx, GlobalObject::createConstructor(cx, &Collator, cx->names().Collator,
0));
if (!ctor)
return nullptr;
RootedNativeObject proto(cx, GlobalObject::createBlankPrototype(cx, global, &CollatorClass));
if (!proto)
return nullptr;
proto->setReservedSlot(UCOLLATOR_SLOT, PrivateValue(nullptr));
if (!LinkConstructorAndPrototype(cx, ctor, proto))
return nullptr;
// 10.2.2
if (!JS_DefineFunctions(cx, ctor, collator_static_methods))
return nullptr;
// 10.3.2 and 10.3.3
if (!JS_DefineFunctions(cx, proto, collator_methods))
return nullptr;
/*
* Install the getter for Collator.prototype.compare, which returns a bound
* comparison function for the specified Collator object (suitable for
* passing to methods like Array.prototype.sort).
*/
RootedValue getter(cx);
if (!GlobalObject::getIntrinsicValue(cx, cx->global(), cx->names().CollatorCompareGet, &getter))
return nullptr;
if (!DefineProperty(cx, proto, cx->names().compare, UndefinedHandleValue,
JS_DATA_TO_FUNC_PTR(JSGetterOp, &getter.toObject()),
nullptr, JSPROP_GETTER | JSPROP_SHARED))
{
return nullptr;
}
RootedValue options(cx);
if (!CreateDefaultOptions(cx, &options))
return nullptr;
// 10.2.1 and 10.3
if (!IntlInitialize(cx, proto, cx->names().InitializeCollator, UndefinedHandleValue, options))
return nullptr;
// 8.1
RootedValue ctorValue(cx, ObjectValue(*ctor));
if (!DefineProperty(cx, Intl, cx->names().Collator, ctorValue, nullptr, nullptr, 0))
return nullptr;
return proto;
}
bool
js::intl_Collator_availableLocales(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 0);
RootedValue result(cx);
if (!intl_availableLocales(cx, ucol_countAvailable, ucol_getAvailable, &result))
return false;
args.rval().set(result);
return true;
}
bool
js::intl_availableCollations(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 1);
MOZ_ASSERT(args[0].isString());
JSAutoByteString locale(cx, args[0].toString());
if (!locale)
return false;
UErrorCode status = U_ZERO_ERROR;
UEnumeration* values = ucol_getKeywordValuesForLocale("co", locale.ptr(), false, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UEnumeration, uenum_close> toClose(values);
uint32_t count = uenum_count(values, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
RootedObject collations(cx, NewDenseEmptyArray(cx));
if (!collations)
return false;
uint32_t index = 0;
for (uint32_t i = 0; i < count; i++) {
const char* collation = uenum_next(values, nullptr, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
// Per ECMA-402, 10.2.3, we don't include standard and search:
// "The values 'standard' and 'search' must not be used as elements in
// any [[sortLocaleData]][locale].co and [[searchLocaleData]][locale].co
// array."
if (equal(collation, "standard") || equal(collation, "search"))
continue;
// ICU returns old-style keyword values; map them to BCP 47 equivalents
// (see http://bugs.icu-project.org/trac/ticket/9620).
if (equal(collation, "dictionary"))
collation = "dict";
else if (equal(collation, "gb2312han"))
collation = "gb2312";
else if (equal(collation, "phonebook"))
collation = "phonebk";
else if (equal(collation, "traditional"))
collation = "trad";
RootedString jscollation(cx, JS_NewStringCopyZ(cx, collation));
if (!jscollation)
return false;
RootedValue element(cx, StringValue(jscollation));
if (!DefineElement(cx, collations, index++, element))
return false;
}
args.rval().setObject(*collations);
return true;
}
/**
* Returns a new UCollator with the locale and collation options
* of the given Collator.
*/
static UCollator*
NewUCollator(JSContext* cx, HandleObject collator)
{
RootedValue value(cx);
RootedObject internals(cx, GetInternals(cx, collator));
if (!internals)
return nullptr;
if (!GetProperty(cx, internals, internals, cx->names().locale, &value))
return nullptr;
JSAutoByteString locale(cx, value.toString());
if (!locale)
return nullptr;
// UCollator options with default values.
UColAttributeValue uStrength = UCOL_DEFAULT;
UColAttributeValue uCaseLevel = UCOL_OFF;
UColAttributeValue uAlternate = UCOL_DEFAULT;
UColAttributeValue uNumeric = UCOL_OFF;
// Normalization is always on to meet the canonical equivalence requirement.
UColAttributeValue uNormalization = UCOL_ON;
UColAttributeValue uCaseFirst = UCOL_DEFAULT;
if (!GetProperty(cx, internals, internals, cx->names().usage, &value))
return nullptr;
JSAutoByteString usage(cx, value.toString());
if (!usage)
return nullptr;
if (equal(usage, "search")) {
// ICU expects search as a Unicode locale extension on locale.
// Unicode locale extensions must occur before private use extensions.
const char* oldLocale = locale.ptr();
const char* p;
size_t index;
size_t localeLen = strlen(oldLocale);
if ((p = strstr(oldLocale, "-x-")))
index = p - oldLocale;
else
index = localeLen;
const char* insert;
if ((p = strstr(oldLocale, "-u-")) && static_cast<size_t>(p - oldLocale) < index) {
index = p - oldLocale + 2;
insert = "-co-search";
} else {
insert = "-u-co-search";
}
size_t insertLen = strlen(insert);
char* newLocale = cx->pod_malloc<char>(localeLen + insertLen + 1);
if (!newLocale)
return nullptr;
memcpy(newLocale, oldLocale, index);
memcpy(newLocale + index, insert, insertLen);
memcpy(newLocale + index + insertLen, oldLocale + index, localeLen - index + 1); // '\0'
locale.clear();
locale.initBytes(newLocale);
}
// We don't need to look at the collation property - it can only be set
// via the Unicode locale extension and is therefore already set on
// locale.
if (!GetProperty(cx, internals, internals, cx->names().sensitivity, &value))
return nullptr;
JSAutoByteString sensitivity(cx, value.toString());
if (!sensitivity)
return nullptr;
if (equal(sensitivity, "base")) {
uStrength = UCOL_PRIMARY;
} else if (equal(sensitivity, "accent")) {
uStrength = UCOL_SECONDARY;
} else if (equal(sensitivity, "case")) {
uStrength = UCOL_PRIMARY;
uCaseLevel = UCOL_ON;
} else {
MOZ_ASSERT(equal(sensitivity, "variant"));
uStrength = UCOL_TERTIARY;
}
if (!GetProperty(cx, internals, internals, cx->names().ignorePunctuation, &value))
return nullptr;
// According to the ICU team, UCOL_SHIFTED causes punctuation to be
// ignored. Looking at Unicode Technical Report 35, Unicode Locale Data
// Markup Language, "shifted" causes whitespace and punctuation to be
// ignored - that's a bit more than asked for, but there's no way to get
// less.
if (value.toBoolean())
uAlternate = UCOL_SHIFTED;
if (!GetProperty(cx, internals, internals, cx->names().numeric, &value))
return nullptr;
if (!value.isUndefined() && value.toBoolean())
uNumeric = UCOL_ON;
if (!GetProperty(cx, internals, internals, cx->names().caseFirst, &value))
return nullptr;
if (!value.isUndefined()) {
JSAutoByteString caseFirst(cx, value.toString());
if (!caseFirst)
return nullptr;
if (equal(caseFirst, "upper"))
uCaseFirst = UCOL_UPPER_FIRST;
else if (equal(caseFirst, "lower"))
uCaseFirst = UCOL_LOWER_FIRST;
else
MOZ_ASSERT(equal(caseFirst, "false"));
}
UErrorCode status = U_ZERO_ERROR;
UCollator* coll = ucol_open(icuLocale(locale.ptr()), &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return nullptr;
}
ucol_setAttribute(coll, UCOL_STRENGTH, uStrength, &status);
ucol_setAttribute(coll, UCOL_CASE_LEVEL, uCaseLevel, &status);
ucol_setAttribute(coll, UCOL_ALTERNATE_HANDLING, uAlternate, &status);
ucol_setAttribute(coll, UCOL_NUMERIC_COLLATION, uNumeric, &status);
ucol_setAttribute(coll, UCOL_NORMALIZATION_MODE, uNormalization, &status);
ucol_setAttribute(coll, UCOL_CASE_FIRST, uCaseFirst, &status);
if (U_FAILURE(status)) {
ucol_close(coll);
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return nullptr;
}
return coll;
}
static bool
intl_CompareStrings(JSContext* cx, UCollator* coll, HandleString str1, HandleString str2,
MutableHandleValue result)
{
MOZ_ASSERT(str1);
MOZ_ASSERT(str2);
if (str1 == str2) {
result.setInt32(0);
return true;
}
AutoStableStringChars stableChars1(cx);
if (!stableChars1.initTwoByte(cx, str1))
return false;
AutoStableStringChars stableChars2(cx);
if (!stableChars2.initTwoByte(cx, str2))
return false;
mozilla::Range<const char16_t> chars1 = stableChars1.twoByteRange();
mozilla::Range<const char16_t> chars2 = stableChars2.twoByteRange();
UCollationResult uresult = ucol_strcoll(coll,
Char16ToUChar(chars1.begin().get()), chars1.length(),
Char16ToUChar(chars2.begin().get()), chars2.length());
int32_t res;
switch (uresult) {
case UCOL_LESS: res = -1; break;
case UCOL_EQUAL: res = 0; break;
case UCOL_GREATER: res = 1; break;
default: MOZ_CRASH("ucol_strcoll returned bad UCollationResult");
}
result.setInt32(res);
return true;
}
bool
js::intl_CompareStrings(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 3);
MOZ_ASSERT(args[0].isObject());
MOZ_ASSERT(args[1].isString());
MOZ_ASSERT(args[2].isString());
RootedObject collator(cx, &args[0].toObject());
// Obtain a UCollator object, cached if possible.
// XXX Does this handle Collator instances from other globals correctly?
bool isCollatorInstance = collator->getClass() == &CollatorClass;
UCollator* coll;
if (isCollatorInstance) {
void* priv = collator->as<NativeObject>().getReservedSlot(UCOLLATOR_SLOT).toPrivate();
coll = static_cast<UCollator*>(priv);
if (!coll) {
coll = NewUCollator(cx, collator);
if (!coll)
return false;
collator->as<NativeObject>().setReservedSlot(UCOLLATOR_SLOT, PrivateValue(coll));
}
} else {
// There's no good place to cache the ICU collator for an object
// that has been initialized as a Collator but is not a Collator
// instance. One possibility might be to add a Collator instance as an
// internal property to each such object.
coll = NewUCollator(cx, collator);
if (!coll)
return false;
}
// Use the UCollator to actually compare the strings.
RootedString str1(cx, args[1].toString());
RootedString str2(cx, args[2].toString());
RootedValue result(cx);
bool success = intl_CompareStrings(cx, coll, str1, str2, &result);
if (!isCollatorInstance)
ucol_close(coll);
if (!success)
return false;
args.rval().set(result);
return true;
}
/******************** NumberFormat ********************/
static void numberFormat_finalize(FreeOp* fop, JSObject* obj);
static const uint32_t UNUMBER_FORMAT_SLOT = 0;
static const uint32_t NUMBER_FORMAT_SLOTS_COUNT = 1;
static const ClassOps NumberFormatClassOps = {
nullptr, /* addProperty */
nullptr, /* delProperty */
nullptr, /* getProperty */
nullptr, /* setProperty */
nullptr, /* enumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
numberFormat_finalize
};
static const Class NumberFormatClass = {
js_Object_str,
JSCLASS_HAS_RESERVED_SLOTS(NUMBER_FORMAT_SLOTS_COUNT) |
JSCLASS_FOREGROUND_FINALIZE,
&NumberFormatClassOps
};
#if JS_HAS_TOSOURCE
static bool
numberFormat_toSource(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
args.rval().setString(cx->names().NumberFormat);
return true;
}
#endif
static const JSFunctionSpec numberFormat_static_methods[] = {
JS_SELF_HOSTED_FN("supportedLocalesOf", "Intl_NumberFormat_supportedLocalesOf", 1, 0),
JS_FS_END
};
static const JSFunctionSpec numberFormat_methods[] = {
JS_SELF_HOSTED_FN("resolvedOptions", "Intl_NumberFormat_resolvedOptions", 0, 0),
#if JS_HAS_TOSOURCE
JS_FN(js_toSource_str, numberFormat_toSource, 0, 0),
#endif
JS_FS_END
};
/**
* 11.2.1 Intl.NumberFormat([ locales [, options]])
*
* ES2017 Intl draft rev 94045d234762ad107a3d09bb6f7381a65f1a2f9b
*/
static bool
NumberFormat(JSContext* cx, const CallArgs& args, bool construct)
{
RootedObject obj(cx);
// We're following ECMA-402 1st Edition when NumberFormat is called
// because of backward compatibility issues.
// See https://github.com/tc39/ecma402/issues/57
if (!construct) {
// ES Intl 1st ed., 11.1.2.1 step 3
JSObject* intl = GlobalObject::getOrCreateIntlObject(cx, cx->global());
if (!intl)
return false;
RootedValue self(cx, args.thisv());
if (!self.isUndefined() && (!self.isObject() || self.toObject() != *intl)) {
// ES Intl 1st ed., 11.1.2.1 step 4
obj = ToObject(cx, self);
if (!obj)
return false;
// ES Intl 1st ed., 11.1.2.1 step 5
bool extensible;
if (!IsExtensible(cx, obj, &extensible))
return false;
if (!extensible)
return Throw(cx, obj, JSMSG_OBJECT_NOT_EXTENSIBLE);
} else {
// ES Intl 1st ed., 11.1.2.1 step 3.a
construct = true;
}
}
if (construct) {
// Step 2 (Inlined 9.1.14, OrdinaryCreateFromConstructor).
RootedObject proto(cx);
if (args.isConstructing() && !GetPrototypeFromCallableConstructor(cx, args, &proto))
return false;
if (!proto) {
proto = GlobalObject::getOrCreateNumberFormatPrototype(cx, cx->global());
if (!proto)
return false;
}
obj = NewObjectWithGivenProto(cx, &NumberFormatClass, proto);
if (!obj)
return false;
obj->as<NativeObject>().setReservedSlot(UNUMBER_FORMAT_SLOT, PrivateValue(nullptr));
}
RootedValue locales(cx, args.length() > 0 ? args[0] : UndefinedValue());
RootedValue options(cx, args.length() > 1 ? args[1] : UndefinedValue());
// Step 3.
if (!IntlInitialize(cx, obj, cx->names().InitializeNumberFormat, locales, options))
return false;
args.rval().setObject(*obj);
return true;
}
static bool
NumberFormat(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
return NumberFormat(cx, args, args.isConstructing());
}
bool
js::intl_NumberFormat(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 2);
MOZ_ASSERT(!args.isConstructing());
// intl_NumberFormat is an intrinsic for self-hosted JavaScript, so it
// cannot be used with "new", but it still has to be treated as a
// constructor.
return NumberFormat(cx, args, true);
}
static void
numberFormat_finalize(FreeOp* fop, JSObject* obj)
{
MOZ_ASSERT(fop->onMainThread());
// This is-undefined check shouldn't be necessary, but for internal
// brokenness in object allocation code. For the moment, hack around it by
// explicitly guarding against the possibility of the reserved slot not
// containing a private. See bug 949220.
const Value& slot = obj->as<NativeObject>().getReservedSlot(UNUMBER_FORMAT_SLOT);
if (!slot.isUndefined()) {
if (UNumberFormat* nf = static_cast<UNumberFormat*>(slot.toPrivate()))
unum_close(nf);
}
}
static JSObject*
CreateNumberFormatPrototype(JSContext* cx, HandleObject Intl, Handle<GlobalObject*> global)
{
RootedFunction ctor(cx);
ctor = GlobalObject::createConstructor(cx, &NumberFormat, cx->names().NumberFormat, 0);
if (!ctor)
return nullptr;
RootedNativeObject proto(cx, GlobalObject::createBlankPrototype(cx, global,
&NumberFormatClass));
if (!proto)
return nullptr;
proto->setReservedSlot(UNUMBER_FORMAT_SLOT, PrivateValue(nullptr));
if (!LinkConstructorAndPrototype(cx, ctor, proto))
return nullptr;
// 11.2.2
if (!JS_DefineFunctions(cx, ctor, numberFormat_static_methods))
return nullptr;
// 11.3.2 and 11.3.3
if (!JS_DefineFunctions(cx, proto, numberFormat_methods))
return nullptr;
/*
* Install the getter for NumberFormat.prototype.format, which returns a
* bound formatting function for the specified NumberFormat object (suitable
* for passing to methods like Array.prototype.map).
*/
RootedValue getter(cx);
if (!GlobalObject::getIntrinsicValue(cx, cx->global(), cx->names().NumberFormatFormatGet,
&getter))
{
return nullptr;
}
if (!DefineProperty(cx, proto, cx->names().format, UndefinedHandleValue,
JS_DATA_TO_FUNC_PTR(JSGetterOp, &getter.toObject()),
nullptr, JSPROP_GETTER | JSPROP_SHARED))
{
return nullptr;
}
RootedValue options(cx);
if (!CreateDefaultOptions(cx, &options))
return nullptr;
// 11.2.1 and 11.3
if (!IntlInitialize(cx, proto, cx->names().InitializeNumberFormat, UndefinedHandleValue,
options))
{
return nullptr;
}
// 8.1
RootedValue ctorValue(cx, ObjectValue(*ctor));
if (!DefineProperty(cx, Intl, cx->names().NumberFormat, ctorValue, nullptr, nullptr, 0))
return nullptr;
return proto;
}
bool
js::intl_NumberFormat_availableLocales(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 0);
RootedValue result(cx);
if (!intl_availableLocales(cx, unum_countAvailable, unum_getAvailable, &result))
return false;
args.rval().set(result);
return true;
}
bool
js::intl_numberingSystem(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 1);
MOZ_ASSERT(args[0].isString());
JSAutoByteString locale(cx, args[0].toString());
if (!locale)
return false;
UErrorCode status = U_ZERO_ERROR;
UNumberingSystem* numbers = unumsys_open(icuLocale(locale.ptr()), &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UNumberingSystem, unumsys_close> toClose(numbers);
const char* name = unumsys_getName(numbers);
RootedString jsname(cx, JS_NewStringCopyZ(cx, name));
if (!jsname)
return false;
args.rval().setString(jsname);
return true;
}
/**
*
* This creates new UNumberFormat with calculated digit formatting
* properties for PluralRules.
*
* This is similar to NewUNumberFormat but doesn't allow for currency or
* percent types.
*
*/
static UNumberFormat*
NewUNumberFormatForPluralRules(JSContext* cx, HandleObject pluralRules)
{
RootedObject internals(cx, GetInternals(cx, pluralRules));
if (!internals)
return nullptr;
RootedValue value(cx);
if (!GetProperty(cx, internals, internals, cx->names().locale, &value))
return nullptr;
JSAutoByteString locale(cx, value.toString());
if (!locale)
return nullptr;
uint32_t uMinimumIntegerDigits = 1;
uint32_t uMinimumFractionDigits = 0;
uint32_t uMaximumFractionDigits = 3;
int32_t uMinimumSignificantDigits = -1;
int32_t uMaximumSignificantDigits = -1;
RootedId id(cx, NameToId(cx->names().minimumSignificantDigits));
bool hasP;
if (!HasProperty(cx, internals, id, &hasP))
return nullptr;
if (hasP) {
if (!GetProperty(cx, internals, internals, cx->names().minimumSignificantDigits,
&value))
return nullptr;
uMinimumSignificantDigits = value.toInt32();
if (!GetProperty(cx, internals, internals, cx->names().maximumSignificantDigits,
&value))
return nullptr;
uMaximumSignificantDigits = value.toInt32();
} else {
if (!GetProperty(cx, internals, internals, cx->names().minimumIntegerDigits,
&value))
return nullptr;
uMinimumIntegerDigits = AssertedCast<uint32_t>(value.toInt32());
if (!GetProperty(cx, internals, internals, cx->names().minimumFractionDigits,
&value))
return nullptr;
uMinimumFractionDigits = AssertedCast<uint32_t>(value.toInt32());
if (!GetProperty(cx, internals, internals, cx->names().maximumFractionDigits,
&value))
return nullptr;
uMaximumFractionDigits = AssertedCast<uint32_t>(value.toInt32());
}
UErrorCode status = U_ZERO_ERROR;
UNumberFormat* nf = unum_open(UNUM_DECIMAL, nullptr, 0, icuLocale(locale.ptr()), nullptr, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return nullptr;
}
ScopedICUObject<UNumberFormat, unum_close> toClose(nf);
if (uMinimumSignificantDigits != -1) {
unum_setAttribute(nf, UNUM_SIGNIFICANT_DIGITS_USED, true);
unum_setAttribute(nf, UNUM_MIN_SIGNIFICANT_DIGITS, uMinimumSignificantDigits);
unum_setAttribute(nf, UNUM_MAX_SIGNIFICANT_DIGITS, uMaximumSignificantDigits);
} else {
unum_setAttribute(nf, UNUM_MIN_INTEGER_DIGITS, uMinimumIntegerDigits);
unum_setAttribute(nf, UNUM_MIN_FRACTION_DIGITS, uMinimumFractionDigits);
unum_setAttribute(nf, UNUM_MAX_FRACTION_DIGITS, uMaximumFractionDigits);
}
return toClose.forget();
}
/**
* Returns a new UNumberFormat with the locale and number formatting options
* of the given NumberFormat.
*/
static UNumberFormat*
NewUNumberFormat(JSContext* cx, HandleObject numberFormat)
{
RootedValue value(cx);
RootedObject internals(cx, GetInternals(cx, numberFormat));
if (!internals)
return nullptr;
if (!GetProperty(cx, internals, internals, cx->names().locale, &value))
return nullptr;
JSAutoByteString locale(cx, value.toString());
if (!locale)
return nullptr;
// UNumberFormat options with default values
UNumberFormatStyle uStyle = UNUM_DECIMAL;
const UChar* uCurrency = nullptr;
uint32_t uMinimumIntegerDigits = 1;
uint32_t uMinimumFractionDigits = 0;
uint32_t uMaximumFractionDigits = 3;
int32_t uMinimumSignificantDigits = -1;
int32_t uMaximumSignificantDigits = -1;
bool uUseGrouping = true;
// Sprinkle appropriate rooting flavor over things the GC might care about.
RootedString currency(cx);
AutoStableStringChars stableChars(cx);
// We don't need to look at numberingSystem - it can only be set via
// the Unicode locale extension and is therefore already set on locale.
if (!GetProperty(cx, internals, internals, cx->names().style, &value))
return nullptr;
JSAutoByteString style(cx, value.toString());
if (!style)
return nullptr;
if (equal(style, "currency")) {
if (!GetProperty(cx, internals, internals, cx->names().currency, &value))
return nullptr;
currency = value.toString();
MOZ_ASSERT(currency->length() == 3,
"IsWellFormedCurrencyCode permits only length-3 strings");
if (!currency->ensureFlat(cx) || !stableChars.initTwoByte(cx, currency))
return nullptr;
// uCurrency remains owned by stableChars.
uCurrency = Char16ToUChar(stableChars.twoByteRange().begin().get());
if (!uCurrency)
return nullptr;
if (!GetProperty(cx, internals, internals, cx->names().currencyDisplay, &value))
return nullptr;
JSAutoByteString currencyDisplay(cx, value.toString());
if (!currencyDisplay)
return nullptr;
if (equal(currencyDisplay, "code")) {
uStyle = UNUM_CURRENCY_ISO;
} else if (equal(currencyDisplay, "symbol")) {
uStyle = UNUM_CURRENCY;
} else {
MOZ_ASSERT(equal(currencyDisplay, "name"));
uStyle = UNUM_CURRENCY_PLURAL;
}
} else if (equal(style, "percent")) {
uStyle = UNUM_PERCENT;
} else {
MOZ_ASSERT(equal(style, "decimal"));
uStyle = UNUM_DECIMAL;
}
RootedId id(cx, NameToId(cx->names().minimumSignificantDigits));
bool hasP;
if (!HasProperty(cx, internals, id, &hasP))
return nullptr;
if (hasP) {
if (!GetProperty(cx, internals, internals, cx->names().minimumSignificantDigits,
&value))
return nullptr;
uMinimumSignificantDigits = value.toInt32();
if (!GetProperty(cx, internals, internals, cx->names().maximumSignificantDigits,
&value))
return nullptr;
uMaximumSignificantDigits = value.toInt32();
} else {
if (!GetProperty(cx, internals, internals, cx->names().minimumIntegerDigits,
&value))
return nullptr;
uMinimumIntegerDigits = AssertedCast<uint32_t>(value.toInt32());
if (!GetProperty(cx, internals, internals, cx->names().minimumFractionDigits,
&value))
return nullptr;
uMinimumFractionDigits = AssertedCast<uint32_t>(value.toInt32());
if (!GetProperty(cx, internals, internals, cx->names().maximumFractionDigits,
&value))
return nullptr;
uMaximumFractionDigits = AssertedCast<uint32_t>(value.toInt32());
}
if (!GetProperty(cx, internals, internals, cx->names().useGrouping, &value))
return nullptr;
uUseGrouping = value.toBoolean();
UErrorCode status = U_ZERO_ERROR;
UNumberFormat* nf = unum_open(uStyle, nullptr, 0, icuLocale(locale.ptr()), nullptr, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return nullptr;
}
ScopedICUObject<UNumberFormat, unum_close> toClose(nf);
if (uCurrency) {
unum_setTextAttribute(nf, UNUM_CURRENCY_CODE, uCurrency, 3, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return nullptr;
}
}
if (uMinimumSignificantDigits != -1) {
unum_setAttribute(nf, UNUM_SIGNIFICANT_DIGITS_USED, true);
unum_setAttribute(nf, UNUM_MIN_SIGNIFICANT_DIGITS, uMinimumSignificantDigits);
unum_setAttribute(nf, UNUM_MAX_SIGNIFICANT_DIGITS, uMaximumSignificantDigits);
} else {
unum_setAttribute(nf, UNUM_MIN_INTEGER_DIGITS, uMinimumIntegerDigits);
unum_setAttribute(nf, UNUM_MIN_FRACTION_DIGITS, uMinimumFractionDigits);
unum_setAttribute(nf, UNUM_MAX_FRACTION_DIGITS, uMaximumFractionDigits);
}
unum_setAttribute(nf, UNUM_GROUPING_USED, uUseGrouping);
unum_setAttribute(nf, UNUM_ROUNDING_MODE, UNUM_ROUND_HALFUP);
return toClose.forget();
}
static bool
intl_FormatNumber(JSContext* cx, UNumberFormat* nf, double x, MutableHandleValue result)
{
// FormatNumber doesn't consider -0.0 to be negative.
if (IsNegativeZero(x))
x = 0.0;
Vector<char16_t, INITIAL_CHAR_BUFFER_SIZE> chars(cx);
if (!chars.resize(INITIAL_CHAR_BUFFER_SIZE))
return false;
UErrorCode status = U_ZERO_ERROR;
int size = unum_formatDouble(nf, x, Char16ToUChar(chars.begin()), INITIAL_CHAR_BUFFER_SIZE,
nullptr, &status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
if (!chars.resize(size))
return false;
status = U_ZERO_ERROR;
unum_formatDouble(nf, x, Char16ToUChar(chars.begin()), size, nullptr, &status);
}
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
JSString* str = NewStringCopyN<CanGC>(cx, chars.begin(), size);
if (!str)
return false;
result.setString(str);
return true;
}
bool
js::intl_FormatNumber(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 2);
MOZ_ASSERT(args[0].isObject());
MOZ_ASSERT(args[1].isNumber());
RootedObject numberFormat(cx, &args[0].toObject());
// Obtain a UNumberFormat object, cached if possible.
bool isNumberFormatInstance = numberFormat->getClass() == &NumberFormatClass;
UNumberFormat* nf;
if (isNumberFormatInstance) {
void* priv =
numberFormat->as<NativeObject>().getReservedSlot(UNUMBER_FORMAT_SLOT).toPrivate();
nf = static_cast<UNumberFormat*>(priv);
if (!nf) {
nf = NewUNumberFormat(cx, numberFormat);
if (!nf)
return false;
numberFormat->as<NativeObject>().setReservedSlot(UNUMBER_FORMAT_SLOT, PrivateValue(nf));
}
} else {
// There's no good place to cache the ICU number format for an object
// that has been initialized as a NumberFormat but is not a
// NumberFormat instance. One possibility might be to add a
// NumberFormat instance as an internal property to each such object.
nf = NewUNumberFormat(cx, numberFormat);
if (!nf)
return false;
}
// Use the UNumberFormat to actually format the number.
RootedValue result(cx);
bool success = intl_FormatNumber(cx, nf, args[1].toNumber(), &result);
if (!isNumberFormatInstance)
unum_close(nf);
if (!success)
return false;
args.rval().set(result);
return true;
}
/******************** DateTimeFormat ********************/
static void dateTimeFormat_finalize(FreeOp* fop, JSObject* obj);
static const uint32_t UDATE_FORMAT_SLOT = 0;
static const uint32_t DATE_TIME_FORMAT_SLOTS_COUNT = 1;
static const ClassOps DateTimeFormatClassOps = {
nullptr, /* addProperty */
nullptr, /* delProperty */
nullptr, /* getProperty */
nullptr, /* setProperty */
nullptr, /* enumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
dateTimeFormat_finalize
};
static const Class DateTimeFormatClass = {
js_Object_str,
JSCLASS_HAS_RESERVED_SLOTS(DATE_TIME_FORMAT_SLOTS_COUNT) |
JSCLASS_FOREGROUND_FINALIZE,
&DateTimeFormatClassOps
};
#if JS_HAS_TOSOURCE
static bool
dateTimeFormat_toSource(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
args.rval().setString(cx->names().DateTimeFormat);
return true;
}
#endif
static const JSFunctionSpec dateTimeFormat_static_methods[] = {
JS_SELF_HOSTED_FN("supportedLocalesOf", "Intl_DateTimeFormat_supportedLocalesOf", 1, 0),
JS_FS_END
};
static const JSFunctionSpec dateTimeFormat_methods[] = {
JS_SELF_HOSTED_FN("resolvedOptions", "Intl_DateTimeFormat_resolvedOptions", 0, 0),
JS_SELF_HOSTED_FN("formatToParts", "Intl_DateTimeFormat_formatToParts", 0, 0),
#if JS_HAS_TOSOURCE
JS_FN(js_toSource_str, dateTimeFormat_toSource, 0, 0),
#endif
JS_FS_END
};
/**
* 12.2.1 Intl.DateTimeFormat([ locales [, options]])
*
* ES2017 Intl draft rev 94045d234762ad107a3d09bb6f7381a65f1a2f9b
*/
static bool
DateTimeFormat(JSContext* cx, const CallArgs& args, bool construct)
{
RootedObject obj(cx);
// We're following ECMA-402 1st Edition when DateTimeFormat is called
// because of backward compatibility issues.
// See https://github.com/tc39/ecma402/issues/57
if (!construct) {
// ES Intl 1st ed., 12.1.2.1 step 3
JSObject* intl = GlobalObject::getOrCreateIntlObject(cx, cx->global());
if (!intl)
return false;
RootedValue self(cx, args.thisv());
if (!self.isUndefined() && (!self.isObject() || self.toObject() != *intl)) {
// ES Intl 1st ed., 12.1.2.1 step 4
obj = ToObject(cx, self);
if (!obj)
return false;
// ES Intl 1st ed., 12.1.2.1 step 5
bool extensible;
if (!IsExtensible(cx, obj, &extensible))
return false;
if (!extensible)
return Throw(cx, obj, JSMSG_OBJECT_NOT_EXTENSIBLE);
} else {
// ES Intl 1st ed., 12.1.2.1 step 3.a
construct = true;
}
}
if (construct) {
// Step 2 (Inlined 9.1.14, OrdinaryCreateFromConstructor).
RootedObject proto(cx);
if (args.isConstructing() && !GetPrototypeFromCallableConstructor(cx, args, &proto))
return false;
if (!proto) {
proto = GlobalObject::getOrCreateDateTimeFormatPrototype(cx, cx->global());
if (!proto)
return false;
}
obj = NewObjectWithGivenProto(cx, &DateTimeFormatClass, proto);
if (!obj)
return false;
obj->as<NativeObject>().setReservedSlot(UDATE_FORMAT_SLOT, PrivateValue(nullptr));
}
RootedValue locales(cx, args.length() > 0 ? args[0] : UndefinedValue());
RootedValue options(cx, args.length() > 1 ? args[1] : UndefinedValue());
// Step 3.
if (!IntlInitialize(cx, obj, cx->names().InitializeDateTimeFormat, locales, options))
return false;
args.rval().setObject(*obj);
return true;
}
static bool
DateTimeFormat(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
return DateTimeFormat(cx, args, args.isConstructing());
}
bool
js::intl_DateTimeFormat(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 2);
MOZ_ASSERT(!args.isConstructing());
// intl_DateTimeFormat is an intrinsic for self-hosted JavaScript, so it
// cannot be used with "new", but it still has to be treated as a
// constructor.
return DateTimeFormat(cx, args, true);
}
static void
dateTimeFormat_finalize(FreeOp* fop, JSObject* obj)
{
MOZ_ASSERT(fop->onMainThread());
// This is-undefined check shouldn't be necessary, but for internal
// brokenness in object allocation code. For the moment, hack around it by
// explicitly guarding against the possibility of the reserved slot not
// containing a private. See bug 949220.
const Value& slot = obj->as<NativeObject>().getReservedSlot(UDATE_FORMAT_SLOT);
if (!slot.isUndefined()) {
if (UDateFormat* df = static_cast<UDateFormat*>(slot.toPrivate()))
udat_close(df);
}
}
static JSObject*
CreateDateTimeFormatPrototype(JSContext* cx, HandleObject Intl, Handle<GlobalObject*> global)
{
RootedFunction ctor(cx);
ctor = GlobalObject::createConstructor(cx, &DateTimeFormat, cx->names().DateTimeFormat, 0);
if (!ctor)
return nullptr;
RootedNativeObject proto(cx, GlobalObject::createBlankPrototype(cx, global,
&DateTimeFormatClass));
if (!proto)
return nullptr;
proto->setReservedSlot(UDATE_FORMAT_SLOT, PrivateValue(nullptr));
if (!LinkConstructorAndPrototype(cx, ctor, proto))
return nullptr;
// 12.2.2
if (!JS_DefineFunctions(cx, ctor, dateTimeFormat_static_methods))
return nullptr;
// 12.3.2 and 12.3.3
if (!JS_DefineFunctions(cx, proto, dateTimeFormat_methods))
return nullptr;
// Install a getter for DateTimeFormat.prototype.format that returns a
// formatting function bound to a specified DateTimeFormat object (suitable
// for passing to methods like Array.prototype.map).
RootedValue getter(cx);
if (!GlobalObject::getIntrinsicValue(cx, cx->global(), cx->names().DateTimeFormatFormatGet,
&getter))
{
return nullptr;
}
if (!DefineProperty(cx, proto, cx->names().format, UndefinedHandleValue,
JS_DATA_TO_FUNC_PTR(JSGetterOp, &getter.toObject()),
nullptr, JSPROP_GETTER | JSPROP_SHARED))
{
return nullptr;
}
RootedValue options(cx);
if (!CreateDefaultOptions(cx, &options))
return nullptr;
// 12.2.1 and 12.3
if (!IntlInitialize(cx, proto, cx->names().InitializeDateTimeFormat, UndefinedHandleValue,
options))
{
return nullptr;
}
// 8.1
RootedValue ctorValue(cx, ObjectValue(*ctor));
if (!DefineProperty(cx, Intl, cx->names().DateTimeFormat, ctorValue, nullptr, nullptr, 0))
return nullptr;
return proto;
}
bool
js::intl_DateTimeFormat_availableLocales(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 0);
RootedValue result(cx);
if (!intl_availableLocales(cx, udat_countAvailable, udat_getAvailable, &result))
return false;
args.rval().set(result);
return true;
}
// ICU returns old-style keyword values; map them to BCP 47 equivalents
// (see http://bugs.icu-project.org/trac/ticket/9620).
static const char*
bcp47CalendarName(const char* icuName)
{
if (equal(icuName, "ethiopic-amete-alem"))
return "ethioaa";
if (equal(icuName, "gregorian"))
return "gregory";
if (equal(icuName, "islamic-civil"))
return "islamicc";
return icuName;
}
bool
js::intl_availableCalendars(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 1);
MOZ_ASSERT(args[0].isString());
JSAutoByteString locale(cx, args[0].toString());
if (!locale)
return false;
RootedObject calendars(cx, NewDenseEmptyArray(cx));
if (!calendars)
return false;
uint32_t index = 0;
// We need the default calendar for the locale as the first result.
UErrorCode status = U_ZERO_ERROR;
RootedString jscalendar(cx);
{
UCalendar* cal = ucal_open(nullptr, 0, locale.ptr(), UCAL_DEFAULT, &status);
// This correctly handles nullptr |cal| when opening failed.
ScopedICUObject<UCalendar, ucal_close> closeCalendar(cal);
const char* calendar = ucal_getType(cal, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
jscalendar = JS_NewStringCopyZ(cx, bcp47CalendarName(calendar));
if (!jscalendar)
return false;
}
RootedValue element(cx, StringValue(jscalendar));
if (!DefineElement(cx, calendars, index++, element))
return false;
// Now get the calendars that "would make a difference", i.e., not the default.
UEnumeration* values = ucal_getKeywordValuesForLocale("ca", locale.ptr(), false, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UEnumeration, uenum_close> toClose(values);
uint32_t count = uenum_count(values, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
for (; count > 0; count--) {
const char* calendar = uenum_next(values, nullptr, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
jscalendar = JS_NewStringCopyZ(cx, bcp47CalendarName(calendar));
if (!jscalendar)
return false;
element = StringValue(jscalendar);
if (!DefineElement(cx, calendars, index++, element))
return false;
}
args.rval().setObject(*calendars);
return true;
}
template<typename Char>
static constexpr Char
ToUpperASCII(Char c)
{
return ('a' <= c && c <= 'z')
? (c & ~0x20)
: c;
}
static_assert(ToUpperASCII('a') == 'A', "verifying 'a' uppercases correctly");
static_assert(ToUpperASCII('m') == 'M', "verifying 'm' uppercases correctly");
static_assert(ToUpperASCII('z') == 'Z', "verifying 'z' uppercases correctly");
static_assert(ToUpperASCII(u'a') == u'A', "verifying u'a' uppercases correctly");
static_assert(ToUpperASCII(u'k') == u'K', "verifying u'k' uppercases correctly");
static_assert(ToUpperASCII(u'z') == u'Z', "verifying u'z' uppercases correctly");
template<typename Char1, typename Char2>
static bool
EqualCharsIgnoreCaseASCII(const Char1* s1, const Char2* s2, size_t len)
{
for (const Char1* s1end = s1 + len; s1 < s1end; s1++, s2++) {
if (ToUpperASCII(*s1) != ToUpperASCII(*s2))
return false;
}
return true;
}
template<typename Char>
static js::HashNumber
HashStringIgnoreCaseASCII(const Char* s, size_t length)
{
uint32_t hash = 0;
for (size_t i = 0; i < length; i++)
hash = mozilla::AddToHash(hash, ToUpperASCII(s[i]));
return hash;
}
js::SharedIntlData::TimeZoneHasher::Lookup::Lookup(JSFlatString* timeZone)
: isLatin1(timeZone->hasLatin1Chars()), length(timeZone->length())
{
if (isLatin1) {
latin1Chars = timeZone->latin1Chars(nogc);
hash = HashStringIgnoreCaseASCII(latin1Chars, length);
} else {
twoByteChars = timeZone->twoByteChars(nogc);
hash = HashStringIgnoreCaseASCII(twoByteChars, length);
}
}
bool
js::SharedIntlData::TimeZoneHasher::match(TimeZoneName key, const Lookup& lookup)
{
if (key->length() != lookup.length)
return false;
// Compare time zone names ignoring ASCII case differences.
if (key->hasLatin1Chars()) {
const Latin1Char* keyChars = key->latin1Chars(lookup.nogc);
if (lookup.isLatin1)
return EqualCharsIgnoreCaseASCII(keyChars, lookup.latin1Chars, lookup.length);
return EqualCharsIgnoreCaseASCII(keyChars, lookup.twoByteChars, lookup.length);
}
const char16_t* keyChars = key->twoByteChars(lookup.nogc);
if (lookup.isLatin1)
return EqualCharsIgnoreCaseASCII(lookup.latin1Chars, keyChars, lookup.length);
return EqualCharsIgnoreCaseASCII(keyChars, lookup.twoByteChars, lookup.length);
}
static bool
IsLegacyICUTimeZone(const char* timeZone)
{
for (const auto& legacyTimeZone : js::timezone::legacyICUTimeZones) {
if (equal(timeZone, legacyTimeZone))
return true;
}
return false;
}
bool
js::SharedIntlData::ensureTimeZones(JSContext* cx)
{
if (timeZoneDataInitialized)
return true;
// If initTimeZones() was called previously, but didn't complete due to
// OOM, clear all sets/maps and start from scratch.
if (availableTimeZones.initialized())
availableTimeZones.finish();
if (!availableTimeZones.init()) {
ReportOutOfMemory(cx);
return false;
}
UErrorCode status = U_ZERO_ERROR;
UEnumeration* values = ucal_openTimeZones(&status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UEnumeration, uenum_close> toClose(values);
RootedAtom timeZone(cx);
while (true) {
int32_t size;
const char* rawTimeZone = uenum_next(values, &size, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
if (rawTimeZone == nullptr)
break;
// Skip legacy ICU time zone names.
if (IsLegacyICUTimeZone(rawTimeZone))
continue;
MOZ_ASSERT(size >= 0);
timeZone = Atomize(cx, rawTimeZone, size_t(size));
if (!timeZone)
return false;
TimeZoneHasher::Lookup lookup(timeZone);
TimeZoneSet::AddPtr p = availableTimeZones.lookupForAdd(lookup);
// ICU shouldn't report any duplicate time zone names, but if it does,
// just ignore the duplicate name.
if (!p && !availableTimeZones.add(p, timeZone)) {
ReportOutOfMemory(cx);
return false;
}
}
if (ianaZonesTreatedAsLinksByICU.initialized())
ianaZonesTreatedAsLinksByICU.finish();
if (!ianaZonesTreatedAsLinksByICU.init()) {
ReportOutOfMemory(cx);
return false;
}
for (const char* rawTimeZone : timezone::ianaZonesTreatedAsLinksByICU) {
MOZ_ASSERT(rawTimeZone != nullptr);
timeZone = Atomize(cx, rawTimeZone, strlen(rawTimeZone));
if (!timeZone)
return false;
TimeZoneHasher::Lookup lookup(timeZone);
TimeZoneSet::AddPtr p = ianaZonesTreatedAsLinksByICU.lookupForAdd(lookup);
MOZ_ASSERT(!p, "Duplicate entry in timezone::ianaZonesTreatedAsLinksByICU");
if (!ianaZonesTreatedAsLinksByICU.add(p, timeZone)) {
ReportOutOfMemory(cx);
return false;
}
}
if (ianaLinksCanonicalizedDifferentlyByICU.initialized())
ianaLinksCanonicalizedDifferentlyByICU.finish();
if (!ianaLinksCanonicalizedDifferentlyByICU.init()) {
ReportOutOfMemory(cx);
return false;
}
RootedAtom linkName(cx);
RootedAtom& target = timeZone;
for (const auto& linkAndTarget : timezone::ianaLinksCanonicalizedDifferentlyByICU) {
const char* rawLinkName = linkAndTarget.link;
const char* rawTarget = linkAndTarget.target;
MOZ_ASSERT(rawLinkName != nullptr);
linkName = Atomize(cx, rawLinkName, strlen(rawLinkName));
if (!linkName)
return false;
MOZ_ASSERT(rawTarget != nullptr);
target = Atomize(cx, rawTarget, strlen(rawTarget));
if (!target)
return false;
TimeZoneHasher::Lookup lookup(linkName);
TimeZoneMap::AddPtr p = ianaLinksCanonicalizedDifferentlyByICU.lookupForAdd(lookup);
MOZ_ASSERT(!p, "Duplicate entry in timezone::ianaLinksCanonicalizedDifferentlyByICU");
if (!ianaLinksCanonicalizedDifferentlyByICU.add(p, linkName, target)) {
ReportOutOfMemory(cx);
return false;
}
}
MOZ_ASSERT(!timeZoneDataInitialized, "ensureTimeZones is neither reentrant nor thread-safe");
timeZoneDataInitialized = true;
return true;
}
bool
js::SharedIntlData::validateTimeZoneName(JSContext* cx, HandleString timeZone,
MutableHandleString result)
{
if (!ensureTimeZones(cx))
return false;
Rooted<JSFlatString*> timeZoneFlat(cx, timeZone->ensureFlat(cx));
if (!timeZoneFlat)
return false;
TimeZoneHasher::Lookup lookup(timeZoneFlat);
if (TimeZoneSet::Ptr p = availableTimeZones.lookup(lookup))
result.set(*p);
return true;
}
bool
js::SharedIntlData::tryCanonicalizeTimeZoneConsistentWithIANA(JSContext* cx, HandleString timeZone,
MutableHandleString result)
{
if (!ensureTimeZones(cx))
return false;
Rooted<JSFlatString*> timeZoneFlat(cx, timeZone->ensureFlat(cx));
if (!timeZoneFlat)
return false;
TimeZoneHasher::Lookup lookup(timeZoneFlat);
MOZ_ASSERT(availableTimeZones.has(lookup), "Invalid time zone name");
if (TimeZoneMap::Ptr p = ianaLinksCanonicalizedDifferentlyByICU.lookup(lookup)) {
// The effectively supported time zones aren't known at compile time,
// when
// 1. SpiderMonkey was compiled with "--with-system-icu".
// 2. ICU's dynamic time zone data loading feature was used.
// (ICU supports loading time zone files at runtime through the
// ICU_TIMEZONE_FILES_DIR environment variable.)
// Ensure ICU supports the new target zone before applying the update.
TimeZoneName targetTimeZone = p->value();
TimeZoneHasher::Lookup targetLookup(targetTimeZone);
if (availableTimeZones.has(targetLookup))
result.set(targetTimeZone);
} else if (TimeZoneSet::Ptr p = ianaZonesTreatedAsLinksByICU.lookup(lookup)) {
result.set(*p);
}
return true;
}
void
js::SharedIntlData::destroyInstance()
{
availableTimeZones.finish();
ianaZonesTreatedAsLinksByICU.finish();
ianaLinksCanonicalizedDifferentlyByICU.finish();
}
void
js::SharedIntlData::trace(JSTracer* trc)
{
// Atoms are always tenured.
if (!trc->runtime()->isHeapMinorCollecting()) {
availableTimeZones.trace(trc);
ianaZonesTreatedAsLinksByICU.trace(trc);
ianaLinksCanonicalizedDifferentlyByICU.trace(trc);
}
}
size_t
js::SharedIntlData::sizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf) const
{
return availableTimeZones.sizeOfExcludingThis(mallocSizeOf) +
ianaZonesTreatedAsLinksByICU.sizeOfExcludingThis(mallocSizeOf) +
ianaLinksCanonicalizedDifferentlyByICU.sizeOfExcludingThis(mallocSizeOf);
}
bool
js::intl_IsValidTimeZoneName(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 1);
MOZ_ASSERT(args[0].isString());
SharedIntlData& sharedIntlData = cx->sharedIntlData;
RootedString timeZone(cx, args[0].toString());
RootedString validatedTimeZone(cx);
if (!sharedIntlData.validateTimeZoneName(cx, timeZone, &validatedTimeZone))
return false;
if (validatedTimeZone)
args.rval().setString(validatedTimeZone);
else
args.rval().setNull();
return true;
}
bool
js::intl_canonicalizeTimeZone(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 1);
MOZ_ASSERT(args[0].isString());
SharedIntlData& sharedIntlData = cx->sharedIntlData;
// Some time zone names are canonicalized differently by ICU -- handle
// those first:
RootedString timeZone(cx, args[0].toString());
RootedString ianaTimeZone(cx);
if (!sharedIntlData.tryCanonicalizeTimeZoneConsistentWithIANA(cx, timeZone, &ianaTimeZone))
return false;
if (ianaTimeZone) {
args.rval().setString(ianaTimeZone);
return true;
}
AutoStableStringChars stableChars(cx);
if (!stableChars.initTwoByte(cx, timeZone))
return false;
mozilla::Range<const char16_t> tzchars = stableChars.twoByteRange();
Vector<char16_t, INITIAL_CHAR_BUFFER_SIZE> chars(cx);
if (!chars.resize(INITIAL_CHAR_BUFFER_SIZE))
return false;
UBool* isSystemID = nullptr;
UErrorCode status = U_ZERO_ERROR;
int32_t size = ucal_getCanonicalTimeZoneID(Char16ToUChar(tzchars.begin().get()),
tzchars.length(), Char16ToUChar(chars.begin()),
INITIAL_CHAR_BUFFER_SIZE, isSystemID, &status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
MOZ_ASSERT(size >= 0);
if (!chars.resize(size_t(size)))
return false;
status = U_ZERO_ERROR;
ucal_getCanonicalTimeZoneID(Char16ToUChar(tzchars.begin().get()), tzchars.length(),
Char16ToUChar(chars.begin()), size, isSystemID, &status);
}
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
MOZ_ASSERT(size >= 0);
JSString* str = NewStringCopyN<CanGC>(cx, chars.begin(), size_t(size));
if (!str)
return false;
args.rval().setString(str);
return true;
}
bool
js::intl_defaultTimeZone(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 0);
// The current default might be stale, because JS::ResetTimeZone() doesn't
// immediately update ICU's default time zone. So perform an update if
// needed.
js::ResyncICUDefaultTimeZone();
Vector<char16_t, INITIAL_CHAR_BUFFER_SIZE> chars(cx);
if (!chars.resize(INITIAL_CHAR_BUFFER_SIZE))
return false;
UErrorCode status = U_ZERO_ERROR;
int32_t size = ucal_getDefaultTimeZone(Char16ToUChar(chars.begin()), INITIAL_CHAR_BUFFER_SIZE,
&status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
MOZ_ASSERT(size >= 0);
if (!chars.resize(size_t(size)))
return false;
status = U_ZERO_ERROR;
ucal_getDefaultTimeZone(Char16ToUChar(chars.begin()), size, &status);
}
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
MOZ_ASSERT(size >= 0);
JSString* str = NewStringCopyN<CanGC>(cx, chars.begin(), size_t(size));
if (!str)
return false;
args.rval().setString(str);
return true;
}
bool
js::intl_defaultTimeZoneOffset(JSContext* cx, unsigned argc, Value* vp) {
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 0);
UErrorCode status = U_ZERO_ERROR;
const UChar* uTimeZone = nullptr;
int32_t uTimeZoneLength = 0;
const char* rootLocale = "";
UCalendar* cal = ucal_open(uTimeZone, uTimeZoneLength, rootLocale, UCAL_DEFAULT, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UCalendar, ucal_close> toClose(cal);
int32_t offset = ucal_get(cal, UCAL_ZONE_OFFSET, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
args.rval().setInt32(offset);
return true;
}
bool
js::intl_patternForSkeleton(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 2);
MOZ_ASSERT(args[0].isString());
MOZ_ASSERT(args[1].isString());
JSAutoByteString locale(cx, args[0].toString());
if (!locale)
return false;
JSFlatString* skeletonFlat = args[1].toString()->ensureFlat(cx);
if (!skeletonFlat)
return false;
AutoStableStringChars stableChars(cx);
if (!stableChars.initTwoByte(cx, skeletonFlat))
return false;
mozilla::Range<const char16_t> skeletonChars = stableChars.twoByteRange();
uint32_t skeletonLen = u_strlen(Char16ToUChar(skeletonChars.begin().get()));
UErrorCode status = U_ZERO_ERROR;
UDateTimePatternGenerator* gen = udatpg_open(icuLocale(locale.ptr()), &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UDateTimePatternGenerator, udatpg_close> toClose(gen);
int32_t size = udatpg_getBestPattern(gen, Char16ToUChar(skeletonChars.begin().get()),
skeletonLen, nullptr, 0, &status);
if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedJSFreePtr<UChar> pattern(cx->pod_malloc<UChar>(size + 1));
if (!pattern)
return false;
pattern[size] = '\0';
status = U_ZERO_ERROR;
udatpg_getBestPattern(gen, Char16ToUChar(skeletonChars.begin().get()),
skeletonLen, pattern, size, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
RootedString str(cx, JS_NewUCStringCopyZ(cx, reinterpret_cast<char16_t*>(pattern.get())));
if (!str)
return false;
args.rval().setString(str);
return true;
}
/**
* Returns a new UDateFormat with the locale and date-time formatting options
* of the given DateTimeFormat.
*/
static UDateFormat*
NewUDateFormat(JSContext* cx, HandleObject dateTimeFormat)
{
RootedValue value(cx);
RootedObject internals(cx, GetInternals(cx, dateTimeFormat));
if (!internals)
return nullptr;
if (!GetProperty(cx, internals, internals, cx->names().locale, &value))
return nullptr;
JSAutoByteString locale(cx, value.toString());
if (!locale)
return nullptr;
// We don't need to look at calendar and numberingSystem - they can only be
// set via the Unicode locale extension and are therefore already set on
// locale.
if (!GetProperty(cx, internals, internals, cx->names().timeZone, &value))
return nullptr;
AutoStableStringChars timeZoneChars(cx);
Rooted<JSFlatString*> timeZoneFlat(cx, value.toString()->ensureFlat(cx));
if (!timeZoneFlat || !timeZoneChars.initTwoByte(cx, timeZoneFlat))
return nullptr;
const UChar* uTimeZone = Char16ToUChar(timeZoneChars.twoByteRange().begin().get());
uint32_t uTimeZoneLength = u_strlen(uTimeZone);
if (!GetProperty(cx, internals, internals, cx->names().pattern, &value))
return nullptr;
AutoStableStringChars patternChars(cx);
Rooted<JSFlatString*> patternFlat(cx, value.toString()->ensureFlat(cx));
if (!patternFlat || !patternChars.initTwoByte(cx, patternFlat))
return nullptr;
const UChar* uPattern = Char16ToUChar(patternChars.twoByteRange().begin().get());
uint32_t uPatternLength = u_strlen(uPattern);
UErrorCode status = U_ZERO_ERROR;
UDateFormat* df =
udat_open(UDAT_PATTERN, UDAT_PATTERN, icuLocale(locale.ptr()), uTimeZone, uTimeZoneLength,
uPattern, uPatternLength, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return nullptr;
}
// ECMAScript requires the Gregorian calendar to be used from the beginning
// of ECMAScript time.
UCalendar* cal = const_cast<UCalendar*>(udat_getCalendar(df));
ucal_setGregorianChange(cal, StartOfTime, &status);
// An error here means the calendar is not Gregorian, so we don't care.
return df;
}
static bool
intl_FormatDateTime(JSContext* cx, UDateFormat* df, double x, MutableHandleValue result)
{
if (!IsFinite(x)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_DATE_NOT_FINITE);
return false;
}
Vector<char16_t, INITIAL_CHAR_BUFFER_SIZE> chars(cx);
if (!chars.resize(INITIAL_CHAR_BUFFER_SIZE))
return false;
UErrorCode status = U_ZERO_ERROR;
int size = udat_format(df, x, Char16ToUChar(chars.begin()), INITIAL_CHAR_BUFFER_SIZE,
nullptr, &status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
if (!chars.resize(size))
return false;
status = U_ZERO_ERROR;
udat_format(df, x, Char16ToUChar(chars.begin()), size, nullptr, &status);
}
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
JSString* str = NewStringCopyN<CanGC>(cx, chars.begin(), size);
if (!str)
return false;
result.setString(str);
return true;
}
using FieldType = ImmutablePropertyNamePtr JSAtomState::*;
static FieldType
GetFieldTypeForFormatField(UDateFormatField fieldName)
{
// See intl/icu/source/i18n/unicode/udat.h for a detailed field list. This
// switch is deliberately exhaustive: cases might have to be added/removed
// if this code is compiled with a different ICU with more
// UDateFormatField enum initializers. Please guard such cases with
// appropriate ICU version-testing #ifdefs, should cross-version divergence
// occur.
switch (fieldName) {
case UDAT_ERA_FIELD:
return &JSAtomState::era;
case UDAT_YEAR_FIELD:
case UDAT_YEAR_WOY_FIELD:
case UDAT_EXTENDED_YEAR_FIELD:
case UDAT_YEAR_NAME_FIELD:
return &JSAtomState::year;
case UDAT_MONTH_FIELD:
case UDAT_STANDALONE_MONTH_FIELD:
return &JSAtomState::month;
case UDAT_DATE_FIELD:
case UDAT_JULIAN_DAY_FIELD:
return &JSAtomState::day;
case UDAT_HOUR_OF_DAY1_FIELD:
case UDAT_HOUR_OF_DAY0_FIELD:
case UDAT_HOUR1_FIELD:
case UDAT_HOUR0_FIELD:
return &JSAtomState::hour;
case UDAT_MINUTE_FIELD:
return &JSAtomState::minute;
case UDAT_SECOND_FIELD:
return &JSAtomState::second;
case UDAT_DAY_OF_WEEK_FIELD:
case UDAT_STANDALONE_DAY_FIELD:
case UDAT_DOW_LOCAL_FIELD:
case UDAT_DAY_OF_WEEK_IN_MONTH_FIELD:
return &JSAtomState::weekday;
case UDAT_AM_PM_FIELD:
return &JSAtomState::dayPeriod;
case UDAT_TIMEZONE_FIELD:
return &JSAtomState::timeZoneName;
case UDAT_FRACTIONAL_SECOND_FIELD:
case UDAT_DAY_OF_YEAR_FIELD:
case UDAT_WEEK_OF_YEAR_FIELD:
case UDAT_WEEK_OF_MONTH_FIELD:
case UDAT_MILLISECONDS_IN_DAY_FIELD:
case UDAT_TIMEZONE_RFC_FIELD:
case UDAT_TIMEZONE_GENERIC_FIELD:
case UDAT_QUARTER_FIELD:
case UDAT_STANDALONE_QUARTER_FIELD:
case UDAT_TIMEZONE_SPECIAL_FIELD:
case UDAT_TIMEZONE_LOCALIZED_GMT_OFFSET_FIELD:
case UDAT_TIMEZONE_ISO_FIELD:
case UDAT_TIMEZONE_ISO_LOCAL_FIELD:
#ifndef U_HIDE_INTERNAL_API
case UDAT_RELATED_YEAR_FIELD:
#endif
#ifndef U_HIDE_DRAFT_API
case UDAT_AM_PM_MIDNIGHT_NOON_FIELD:
case UDAT_FLEXIBLE_DAY_PERIOD_FIELD:
#endif
#ifndef U_HIDE_INTERNAL_API
case UDAT_TIME_SEPARATOR_FIELD:
#endif
// These fields are all unsupported.
return nullptr;
case UDAT_FIELD_COUNT:
MOZ_ASSERT_UNREACHABLE("format field sentinel value returned by "
"iterator!");
}
MOZ_ASSERT_UNREACHABLE("unenumerated, undocumented format field returned "
"by iterator");
return nullptr;
}
static bool
intl_FormatToPartsDateTime(JSContext* cx, UDateFormat* df, double x, MutableHandleValue result)
{
if (!IsFinite(x)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_DATE_NOT_FINITE);
return false;
}
Vector<char16_t, INITIAL_CHAR_BUFFER_SIZE> chars(cx);
if (!chars.resize(INITIAL_CHAR_BUFFER_SIZE))
return false;
UErrorCode status = U_ZERO_ERROR;
UFieldPositionIterator* fpositer = ufieldpositer_open(&status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
auto closeFieldPosIter = MakeScopeExit([&]() { ufieldpositer_close(fpositer); });
int resultSize =
udat_formatForFields(df, x, Char16ToUChar(chars.begin()), INITIAL_CHAR_BUFFER_SIZE,
fpositer, &status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
if (!chars.resize(resultSize))
return false;
status = U_ZERO_ERROR;
udat_formatForFields(df, x, Char16ToUChar(chars.begin()), resultSize, fpositer, &status);
}
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
RootedArrayObject partsArray(cx, NewDenseEmptyArray(cx));
if (!partsArray)
return false;
if (resultSize == 0) {
// An empty string contains no parts, so avoid extra work below.
result.setObject(*partsArray);
return true;
}
RootedString overallResult(cx, NewStringCopyN<CanGC>(cx, chars.begin(), resultSize));
if (!overallResult)
return false;
size_t lastEndIndex = 0;
uint32_t partIndex = 0;
RootedObject singlePart(cx);
RootedValue partType(cx);
RootedString partSubstr(cx);
RootedValue val(cx);
auto AppendPart = [&](FieldType type, size_t beginIndex, size_t endIndex) {
singlePart = NewBuiltinClassInstance<PlainObject>(cx);
if (!singlePart)
return false;
partType = StringValue(cx->names().*type);
if (!DefineProperty(cx, singlePart, cx->names().type, partType))
return false;
partSubstr = SubstringKernel(cx, overallResult, beginIndex, endIndex - beginIndex);
if (!partSubstr)
return false;
val = StringValue(partSubstr);
if (!DefineProperty(cx, singlePart, cx->names().value, val))
return false;
val = ObjectValue(*singlePart);
if (!DefineElement(cx, partsArray, partIndex, val))
return false;
lastEndIndex = endIndex;
partIndex++;
return true;
};
int32_t fieldInt, beginIndexInt, endIndexInt;
while ((fieldInt = ufieldpositer_next(fpositer, &beginIndexInt, &endIndexInt)) >= 0) {
MOZ_ASSERT(beginIndexInt >= 0);
MOZ_ASSERT(endIndexInt >= 0);
MOZ_ASSERT(beginIndexInt <= endIndexInt,
"field iterator returning invalid range");
size_t beginIndex(beginIndexInt);
size_t endIndex(endIndexInt);
// Technically this isn't guaranteed. But it appears true in pratice,
// and http://bugs.icu-project.org/trac/ticket/12024 is expected to
// correct the documentation lapse.
MOZ_ASSERT(lastEndIndex <= beginIndex,
"field iteration didn't return fields in order start to "
"finish as expected");
if (FieldType type = GetFieldTypeForFormatField(static_cast<UDateFormatField>(fieldInt))) {
if (lastEndIndex < beginIndex) {
if (!AppendPart(&JSAtomState::literal, lastEndIndex, beginIndex))
return false;
}
if (!AppendPart(type, beginIndex, endIndex))
return false;
}
}
// Append any final literal.
if (lastEndIndex < overallResult->length()) {
if (!AppendPart(&JSAtomState::literal, lastEndIndex, overallResult->length()))
return false;
}
result.setObject(*partsArray);
return true;
}
bool
js::intl_FormatDateTime(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 3);
MOZ_ASSERT(args[0].isObject());
MOZ_ASSERT(args[1].isNumber());
MOZ_ASSERT(args[2].isBoolean());
RootedObject dateTimeFormat(cx, &args[0].toObject());
// Obtain a UDateFormat object, cached if possible.
bool isDateTimeFormatInstance = dateTimeFormat->getClass() == &DateTimeFormatClass;
UDateFormat* df;
if (isDateTimeFormatInstance) {
void* priv =
dateTimeFormat->as<NativeObject>().getReservedSlot(UDATE_FORMAT_SLOT).toPrivate();
df = static_cast<UDateFormat*>(priv);
if (!df) {
df = NewUDateFormat(cx, dateTimeFormat);
if (!df)
return false;
dateTimeFormat->as<NativeObject>().setReservedSlot(UDATE_FORMAT_SLOT, PrivateValue(df));
}
} else {
// There's no good place to cache the ICU date-time format for an object
// that has been initialized as a DateTimeFormat but is not a
// DateTimeFormat instance. One possibility might be to add a
// DateTimeFormat instance as an internal property to each such object.
df = NewUDateFormat(cx, dateTimeFormat);
if (!df)
return false;
}
// Use the UDateFormat to actually format the time stamp.
RootedValue result(cx);
bool success = args[2].toBoolean()
? intl_FormatToPartsDateTime(cx, df, args[1].toNumber(), &result)
: intl_FormatDateTime(cx, df, args[1].toNumber(), &result);
if (!isDateTimeFormatInstance)
udat_close(df);
if (!success)
return false;
args.rval().set(result);
return true;
}
/**************** PluralRules *****************/
static void pluralRules_finalize(FreeOp* fop, JSObject* obj);
static const uint32_t UPLURAL_RULES_SLOT = 0;
static const uint32_t PLURAL_RULES_SLOTS_COUNT = 1;
static const ClassOps PluralRulesClassOps = {
nullptr, /* addProperty */
nullptr, /* delProperty */
nullptr, /* getProperty */
nullptr, /* setProperty */
nullptr, /* enumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
pluralRules_finalize
};
static const Class PluralRulesClass = {
js_Object_str,
JSCLASS_HAS_RESERVED_SLOTS(PLURAL_RULES_SLOTS_COUNT) |
JSCLASS_FOREGROUND_FINALIZE,
&PluralRulesClassOps
};
#if JS_HAS_TOSOURCE
static bool
pluralRules_toSource(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
args.rval().setString(cx->names().PluralRules);
return true;
}
#endif
static const JSFunctionSpec pluralRules_static_methods[] = {
JS_SELF_HOSTED_FN("supportedLocalesOf", "Intl_PluralRules_supportedLocalesOf", 1, 0),
JS_FS_END
};
static const JSFunctionSpec pluralRules_methods[] = {
JS_SELF_HOSTED_FN("resolvedOptions", "Intl_PluralRules_resolvedOptions", 0, 0),
JS_SELF_HOSTED_FN("select", "Intl_PluralRules_select", 1, 0),
#if JS_HAS_TOSOURCE
JS_FN(js_toSource_str, pluralRules_toSource, 0, 0),
#endif
JS_FS_END
};
/**
* PluralRules constructor.
* Spec: ECMAScript 402 API, PluralRules, 1.1
*/
static bool
PluralRules(JSContext* cx, const CallArgs& args, bool construct)
{
RootedObject obj(cx);
if (!construct) {
JSObject* intl = GlobalObject::getOrCreateIntlObject(cx, cx->global());
if (!intl)
return false;
RootedValue self(cx, args.thisv());
if (!self.isUndefined() && (!self.isObject() || self.toObject() != *intl)) {
obj = ToObject(cx, self);
if (!obj)
return false;
bool extensible;
if (!IsExtensible(cx, obj, &extensible))
return false;
if (!extensible)
return Throw(cx, obj, JSMSG_OBJECT_NOT_EXTENSIBLE);
} else {
construct = true;
}
}
if (construct) {
RootedObject proto(cx, GlobalObject::getOrCreatePluralRulesPrototype(cx, cx->global()));
if (!proto)
return false;
obj = NewObjectWithGivenProto(cx, &PluralRulesClass, proto);
if (!obj)
return false;
obj->as<NativeObject>().setReservedSlot(UPLURAL_RULES_SLOT, PrivateValue(nullptr));
}
RootedValue locales(cx, args.get(0));
RootedValue options(cx, args.get(1));
if (!IntlInitialize(cx, obj, cx->names().InitializePluralRules, locales, options))
return false;
args.rval().setObject(*obj);
return true;
}
static bool
PluralRules(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
return PluralRules(cx, args, args.isConstructing());
}
bool
js::intl_PluralRules(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 2);
return PluralRules(cx, args, true);
}
static void
pluralRules_finalize(FreeOp* fop, JSObject* obj)
{
MOZ_ASSERT(fop->onMainThread());
// This is-undefined check shouldn't be necessary, but for internal
// brokenness in object allocation code. For the moment, hack around it by
// explicitly guarding against the possibility of the reserved slot not
// containing a private. See bug 949220.
const Value& slot = obj->as<NativeObject>().getReservedSlot(UPLURAL_RULES_SLOT);
if (!slot.isUndefined()) {
if (UPluralRules* pr = static_cast<UPluralRules*>(slot.toPrivate()))
uplrules_close(pr);
}
}
static JSObject*
CreatePluralRulesPrototype(JSContext* cx, HandleObject Intl, Handle<GlobalObject*> global)
{
RootedFunction ctor(cx);
ctor = global->createConstructor(cx, &PluralRules, cx->names().PluralRules, 0);
if (!ctor)
return nullptr;
RootedNativeObject proto(cx, GlobalObject::createBlankPrototype(cx, global, &PluralRulesClass));
if (!proto)
return nullptr;
proto->setReservedSlot(UPLURAL_RULES_SLOT, PrivateValue(nullptr));
if (!LinkConstructorAndPrototype(cx, ctor, proto))
return nullptr;
if (!JS_DefineFunctions(cx, ctor, pluralRules_static_methods))
return nullptr;
if (!JS_DefineFunctions(cx, proto, pluralRules_methods))
return nullptr;
RootedValue options(cx);
if (!CreateDefaultOptions(cx, &options))
return nullptr;
if (!IntlInitialize(cx, proto, cx->names().InitializePluralRules, UndefinedHandleValue,
options))
{
return nullptr;
}
RootedValue ctorValue(cx, ObjectValue(*ctor));
if (!DefineProperty(cx, Intl, cx->names().PluralRules, ctorValue, nullptr, nullptr, 0))
return nullptr;
return proto;
}
bool
js::intl_PluralRules_availableLocales(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 0);
RootedValue result(cx);
// We're going to use ULocale availableLocales as per ICU recommendation:
// https://ssl.icu-project.org/trac/ticket/12756
if (!intl_availableLocales(cx, uloc_countAvailable, uloc_getAvailable, &result))
return false;
args.rval().set(result);
return true;
}
bool
js::intl_SelectPluralRule(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
RootedObject pluralRules(cx, &args[0].toObject());
UNumberFormat* nf = NewUNumberFormatForPluralRules(cx, pluralRules);
if (!nf)
return false;
ScopedICUObject<UNumberFormat, unum_close> closeNumberFormat(nf);
RootedObject internals(cx, GetInternals(cx, pluralRules));
if (!internals)
return false;
RootedValue value(cx);
if (!GetProperty(cx, internals, internals, cx->names().locale, &value))
return false;
JSAutoByteString locale(cx, value.toString());
if (!locale)
return false;
if (!GetProperty(cx, internals, internals, cx->names().type, &value))
return false;
JSAutoByteString type(cx, value.toString());
if (!type)
return false;
double x = args[1].toNumber();
// We need a NumberFormat in order to format the number
// using the number formatting options (minimum/maximum*Digits)
// before we push the result to PluralRules
//
// This should be fixed in ICU 59 and we'll be able to switch to that
// API: http://bugs.icu-project.org/trac/ticket/12763
//
RootedValue fmtNumValue(cx);
if (!intl_FormatNumber(cx, nf, x, &fmtNumValue))
return false;
RootedString fmtNumValueString(cx, fmtNumValue.toString());
AutoStableStringChars stableChars(cx);
if (!stableChars.initTwoByte(cx, fmtNumValueString))
return false;
const UChar* uFmtNumValue = Char16ToUChar(stableChars.twoByteRange().begin().get());
UErrorCode status = U_ZERO_ERROR;
UFormattable* fmt = unum_parseToUFormattable(nf, nullptr, uFmtNumValue,
stableChars.twoByteRange().length(), 0, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UFormattable, ufmt_close> closeUFormattable(fmt);
double y = ufmt_getDouble(fmt, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
UPluralType category;
if (equal(type, "cardinal")) {
category = UPLURAL_TYPE_CARDINAL;
} else {
MOZ_ASSERT(equal(type, "ordinal"));
category = UPLURAL_TYPE_ORDINAL;
}
UPluralRules* pr = uplrules_openForType(icuLocale(locale.ptr()), category, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UPluralRules, uplrules_close> closePluralRules(pr);
Vector<char16_t, INITIAL_CHAR_BUFFER_SIZE> chars(cx);
if (!chars.resize(INITIAL_CHAR_BUFFER_SIZE))
return false;
int size = uplrules_select(pr, y, Char16ToUChar(chars.begin()), INITIAL_CHAR_BUFFER_SIZE, &status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
if (!chars.resize(size))
return false;
status = U_ZERO_ERROR;
uplrules_select(pr, y, Char16ToUChar(chars.begin()), size, &status);
}
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
JSString* str = NewStringCopyN<CanGC>(cx, chars.begin(), size);
if (!str)
return false;
args.rval().setString(str);
return true;
}
bool
js::intl_GetPluralCategories(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 2);
JSAutoByteString locale(cx, args[0].toString());
if (!locale)
return false;
JSAutoByteString type(cx, args[1].toString());
if (!type)
return false;
UErrorCode status = U_ZERO_ERROR;
UPluralType category;
if (equal(type, "cardinal")) {
category = UPLURAL_TYPE_CARDINAL;
} else {
MOZ_ASSERT(equal(type, "ordinal"));
category = UPLURAL_TYPE_ORDINAL;
}
UPluralRules* pr = uplrules_openForType(
icuLocale(locale.ptr()),
category,
&status
);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UPluralRules, uplrules_close> closePluralRules(pr);
// We should get a C API for that in ICU 59 and switch to it
// https://ssl.icu-project.org/trac/ticket/12772
//
icu::StringEnumeration* kwenum =
reinterpret_cast<icu::PluralRules*>(pr)->getKeywords(status);
UEnumeration* ue = uenum_openFromStringEnumeration(kwenum, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UEnumeration, uenum_close> closeEnum(ue);
RootedObject res(cx, NewDenseEmptyArray(cx));
if (!res)
return false;
RootedValue element(cx);
uint32_t i = 0;
int32_t catSize;
const char* cat;
do {
cat = uenum_next(ue, &catSize, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
if (!cat)
break;
JSString* str = NewStringCopyN<CanGC>(cx, cat, catSize);
if (!str)
return false;
element.setString(str);
if (!DefineElement(cx, res, i, element))
return false;
i++;
} while (true);
args.rval().setObject(*res);
return true;
}
bool
js::intl_GetCalendarInfo(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 1);
JSAutoByteString locale(cx, args[0].toString());
if (!locale)
return false;
UErrorCode status = U_ZERO_ERROR;
const UChar* uTimeZone = nullptr;
int32_t uTimeZoneLength = 0;
UCalendar* cal = ucal_open(uTimeZone, uTimeZoneLength, locale.ptr(), UCAL_DEFAULT, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UCalendar, ucal_close> toClose(cal);
RootedObject info(cx, NewBuiltinClassInstance<PlainObject>(cx));
if (!info)
return false;
RootedValue v(cx);
int32_t firstDayOfWeek = ucal_getAttribute(cal, UCAL_FIRST_DAY_OF_WEEK);
v.setInt32(firstDayOfWeek);
if (!DefineProperty(cx, info, cx->names().firstDayOfWeek, v))
return false;
int32_t minDays = ucal_getAttribute(cal, UCAL_MINIMAL_DAYS_IN_FIRST_WEEK);
v.setInt32(minDays);
if (!DefineProperty(cx, info, cx->names().minDays, v))
return false;
UCalendarWeekdayType prevDayType = ucal_getDayOfWeekType(cal, UCAL_SATURDAY, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
RootedValue weekendStart(cx), weekendEnd(cx);
for (int i = UCAL_SUNDAY; i <= UCAL_SATURDAY; i++) {
UCalendarDaysOfWeek dayOfWeek = static_cast<UCalendarDaysOfWeek>(i);
UCalendarWeekdayType type = ucal_getDayOfWeekType(cal, dayOfWeek, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
if (prevDayType != type) {
switch (type) {
case UCAL_WEEKDAY:
// If the first Weekday after Weekend is Sunday (1),
// then the last Weekend day is Saturday (7).
// Otherwise we'll just take the previous days number.
weekendEnd.setInt32(i == 1 ? 7 : i - 1);
break;
case UCAL_WEEKEND:
weekendStart.setInt32(i);
break;
case UCAL_WEEKEND_ONSET:
case UCAL_WEEKEND_CEASE:
// At the time this code was added, ICU apparently never behaves this way,
// so just throw, so that users will report a bug and we can decide what to
// do.
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
default:
break;
}
}
prevDayType = type;
}
MOZ_ASSERT(weekendStart.isInt32());
MOZ_ASSERT(weekendEnd.isInt32());
if (!DefineProperty(cx, info, cx->names().weekendStart, weekendStart))
return false;
if (!DefineProperty(cx, info, cx->names().weekendEnd, weekendEnd))
return false;
args.rval().setObject(*info);
return true;
}
template<size_t N>
inline bool
MatchPart(const char** pattern, const char (&part)[N])
{
if (strncmp(*pattern, part, N - 1))
return false;
*pattern += N - 1;
return true;
}
bool
js::intl_ComputeDisplayNames(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 3);
// 1. Assert: locale is a string.
MOZ_ASSERT(args[0].isString());
// 2. Assert: style is a string.
MOZ_ASSERT(args[1].isString());
// 3. Assert: keys is an Array.
MOZ_ASSERT(args[2].isObject());
JSAutoByteString locale(cx, args[0].toString());
if (!locale)
return false;
JSAutoByteString style(cx, args[1].toString());
if (!style)
return false;
RootedArrayObject keys(cx, &args[2].toObject().as<ArrayObject>());
if (!keys)
return false;
// 4. Let result be ArrayCreate(0).
RootedArrayObject result(cx, NewDenseUnallocatedArray(cx, keys->length()));
if (!result)
return false;
UErrorCode status = U_ZERO_ERROR;
UDateFormat* fmt =
udat_open(UDAT_DEFAULT, UDAT_DEFAULT, icuLocale(locale.ptr()),
nullptr, 0, nullptr, 0, &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UDateFormat, udat_close> datToClose(fmt);
// UDateTimePatternGenerator will be needed for translations of date and
// time fields like "month", "week", "day" etc.
UDateTimePatternGenerator* dtpg = udatpg_open(icuLocale(locale.ptr()), &status);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
ScopedICUObject<UDateTimePatternGenerator, udatpg_close> datPgToClose(dtpg);
RootedValue keyValue(cx);
RootedString keyValStr(cx);
RootedValue wordVal(cx);
Vector<char16_t, INITIAL_CHAR_BUFFER_SIZE> chars(cx);
if (!chars.resize(INITIAL_CHAR_BUFFER_SIZE))
return false;
// 5. For each element of keys,
for (uint32_t i = 0; i < keys->length(); i++) {
/**
* We iterate over keys array looking for paths that we have code
* branches for.
*
* For any unknown path branch, the wordVal will keep NullValue and
* we'll throw at the end.
*/
if (!GetElement(cx, keys, keys, i, &keyValue))
return false;
JSAutoByteString pattern;
keyValStr = keyValue.toString();
if (!pattern.encodeUtf8(cx, keyValStr))
return false;
wordVal.setNull();
// 5.a. Perform an implementation dependent algorithm to map a key to a
// corresponding display name.
const char* pat = pattern.ptr();
if (!MatchPart(&pat, "dates")) {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
if (!MatchPart(&pat, "/")) {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
if (MatchPart(&pat, "fields")) {
if (!MatchPart(&pat, "/")) {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
UDateTimePatternField fieldType;
if (MatchPart(&pat, "year")) {
fieldType = UDATPG_YEAR_FIELD;
} else if (MatchPart(&pat, "month")) {
fieldType = UDATPG_MONTH_FIELD;
} else if (MatchPart(&pat, "week")) {
fieldType = UDATPG_WEEK_OF_YEAR_FIELD;
} else if (MatchPart(&pat, "day")) {
fieldType = UDATPG_DAY_FIELD;
} else {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
// This part must be the final part with no trailing data.
if (*pat != '\0') {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
int32_t resultSize;
const UChar* value = udatpg_getAppendItemName(dtpg, fieldType, &resultSize);
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
JSString* word = NewStringCopyN<CanGC>(cx, UCharToChar16(value), resultSize);
if (!word)
return false;
wordVal.setString(word);
} else if (MatchPart(&pat, "gregorian")) {
if (!MatchPart(&pat, "/")) {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
UDateFormatSymbolType symbolType;
int32_t index;
if (MatchPart(&pat, "months")) {
if (!MatchPart(&pat, "/")) {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
if (equal(style, "narrow")) {
symbolType = UDAT_STANDALONE_NARROW_MONTHS;
} else if (equal(style, "short")) {
symbolType = UDAT_STANDALONE_SHORT_MONTHS;
} else {
MOZ_ASSERT(equal(style, "long"));
symbolType = UDAT_STANDALONE_MONTHS;
}
if (MatchPart(&pat, "january")) {
index = UCAL_JANUARY;
} else if (MatchPart(&pat, "february")) {
index = UCAL_FEBRUARY;
} else if (MatchPart(&pat, "march")) {
index = UCAL_MARCH;
} else if (MatchPart(&pat, "april")) {
index = UCAL_APRIL;
} else if (MatchPart(&pat, "may")) {
index = UCAL_MAY;
} else if (MatchPart(&pat, "june")) {
index = UCAL_JUNE;
} else if (MatchPart(&pat, "july")) {
index = UCAL_JULY;
} else if (MatchPart(&pat, "august")) {
index = UCAL_AUGUST;
} else if (MatchPart(&pat, "september")) {
index = UCAL_SEPTEMBER;
} else if (MatchPart(&pat, "october")) {
index = UCAL_OCTOBER;
} else if (MatchPart(&pat, "november")) {
index = UCAL_NOVEMBER;
} else if (MatchPart(&pat, "december")) {
index = UCAL_DECEMBER;
} else {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
} else if (MatchPart(&pat, "weekdays")) {
if (!MatchPart(&pat, "/")) {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
if (equal(style, "narrow")) {
symbolType = UDAT_STANDALONE_NARROW_WEEKDAYS;
} else if (equal(style, "short")) {
symbolType = UDAT_STANDALONE_SHORT_WEEKDAYS;
} else {
MOZ_ASSERT(equal(style, "long"));
symbolType = UDAT_STANDALONE_WEEKDAYS;
}
if (MatchPart(&pat, "monday")) {
index = UCAL_MONDAY;
} else if (MatchPart(&pat, "tuesday")) {
index = UCAL_TUESDAY;
} else if (MatchPart(&pat, "wednesday")) {
index = UCAL_WEDNESDAY;
} else if (MatchPart(&pat, "thursday")) {
index = UCAL_THURSDAY;
} else if (MatchPart(&pat, "friday")) {
index = UCAL_FRIDAY;
} else if (MatchPart(&pat, "saturday")) {
index = UCAL_SATURDAY;
} else if (MatchPart(&pat, "sunday")) {
index = UCAL_SUNDAY;
} else {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
} else if (MatchPart(&pat, "dayperiods")) {
if (!MatchPart(&pat, "/")) {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
symbolType = UDAT_AM_PMS;
if (MatchPart(&pat, "am")) {
index = UCAL_AM;
} else if (MatchPart(&pat, "pm")) {
index = UCAL_PM;
} else {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
} else {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
// This part must be the final part with no trailing data.
if (*pat != '\0') {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
int32_t resultSize =
udat_getSymbols(fmt, symbolType, index, Char16ToUChar(chars.begin()),
INITIAL_CHAR_BUFFER_SIZE, &status);
if (status == U_BUFFER_OVERFLOW_ERROR) {
if (!chars.resize(resultSize))
return false;
status = U_ZERO_ERROR;
udat_getSymbols(fmt, symbolType, index, Char16ToUChar(chars.begin()),
resultSize, &status);
}
if (U_FAILURE(status)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_INTERNAL_INTL_ERROR);
return false;
}
JSString* word = NewStringCopyN<CanGC>(cx, chars.begin(), resultSize);
if (!word)
return false;
wordVal.setString(word);
} else {
JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr, JSMSG_INVALID_KEY, pattern.ptr());
return false;
}
MOZ_ASSERT(wordVal.isString());
// 5.b. Append the result string to result.
if (!DefineElement(cx, result, i, wordVal))
return false;
}
// 6. Return result.
args.rval().setObject(*result);
return true;
}
/******************** Intl ********************/
const Class js::IntlClass = {
js_Object_str,
JSCLASS_HAS_CACHED_PROTO(JSProto_Intl)
};
#if JS_HAS_TOSOURCE
static bool
intl_toSource(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
args.rval().setString(cx->names().Intl);
return true;
}
#endif
static const JSFunctionSpec intl_static_methods[] = {
#if JS_HAS_TOSOURCE
JS_FN(js_toSource_str, intl_toSource, 0, 0),
#endif
JS_SELF_HOSTED_FN("getCanonicalLocales", "Intl_getCanonicalLocales", 1, 0),
JS_FS_END
};
/**
* Initializes the Intl Object and its standard built-in properties.
* Spec: ECMAScript Internationalization API Specification, 8.0, 8.1
*/
/* static */ bool
GlobalObject::initIntlObject(JSContext* cx, Handle<GlobalObject*> global)
{
RootedObject proto(cx, GlobalObject::getOrCreateObjectPrototype(cx, global));
if (!proto)
return false;
// The |Intl| object is just a plain object with some "static" function
// properties and some constructor properties.
RootedObject intl(cx, NewObjectWithGivenProto(cx, &IntlClass, proto, SingletonObject));
if (!intl)
return false;
// Add the static functions.
if (!JS_DefineFunctions(cx, intl, intl_static_methods))
return false;
// Add the constructor properties, computing and returning the relevant
// prototype objects needed below.
RootedObject collatorProto(cx, CreateCollatorPrototype(cx, intl, global));
if (!collatorProto)
return false;
RootedObject dateTimeFormatProto(cx, CreateDateTimeFormatPrototype(cx, intl, global));
if (!dateTimeFormatProto)
return false;
RootedObject numberFormatProto(cx, CreateNumberFormatPrototype(cx, intl, global));
if (!numberFormatProto)
return false;
RootedObject pluralRulesProto(cx, CreatePluralRulesPrototype(cx, intl, global));
if (!pluralRulesProto)
return false;
// The |Intl| object is fully set up now, so define the global property.
RootedValue intlValue(cx, ObjectValue(*intl));
if (!DefineProperty(cx, global, cx->names().Intl, intlValue, nullptr, nullptr,
JSPROP_RESOLVING))
{
return false;
}
// Now that the |Intl| object is successfully added, we can OOM-safely fill
// in all relevant reserved global slots.
// Cache the various prototypes, for use in creating instances of these
// objects with the proper [[Prototype]] as "the original value of
// |Intl.Collator.prototype|" and similar. For builtin classes like
// |String.prototype| we have |JSProto_*| that enables
// |getPrototype(JSProto_*)|, but that has global-object-property-related
// baggage we don't need or want, so we use one-off reserved slots.
global->setReservedSlot(COLLATOR_PROTO, ObjectValue(*collatorProto));
global->setReservedSlot(DATE_TIME_FORMAT_PROTO, ObjectValue(*dateTimeFormatProto));
global->setReservedSlot(NUMBER_FORMAT_PROTO, ObjectValue(*numberFormatProto));
global->setReservedSlot(PLURAL_RULES_PROTO, ObjectValue(*pluralRulesProto));
// Also cache |Intl| to implement spec language that conditions behavior
// based on values being equal to "the standard built-in |Intl| object".
// Use |setConstructor| to correspond with |JSProto_Intl|.
//
// XXX We should possibly do a one-off reserved slot like above.
global->setConstructor(JSProto_Intl, ObjectValue(*intl));
return true;
}
JSObject*
js::InitIntlClass(JSContext* cx, HandleObject obj)
{
Handle<GlobalObject*> global = obj.as<GlobalObject>();
if (!GlobalObject::initIntlObject(cx, global))
return nullptr;
return &global->getConstructor(JSProto_Intl).toObject();
}
Reference in New Issue View Git Blame Copy Permalink