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authorTom Sepez <tsepez@chromium.org>2015-09-16 10:42:08 -0700
committerTom Sepez <tsepez@chromium.org>2015-09-16 10:42:08 -0700
commit506df426d5d64d68e9dc27ffebcf56f6c6a1bccf (patch)
tree3ba8d38a3bef95c0555549953bce0cce90845cdb /fpdfsdk/src/javascript/JS_Value.cpp
parent615d7aba0f7d53a78eb05fbd4ae0e1a7e1d3b103 (diff)
downloadpdfium-506df426d5d64d68e9dc27ffebcf56f6c6a1bccf.tar.xz
Ensure functions in FXJS_V8 are prefixed by FXJS_.
Currently, its hard to tell which functions come from the JS_ layer at fpdfsdk/include/javascript vs. which functions come from the FXJS_V8 layer at fpdfsdk/include/jsapi. Until we take up the task of using namespaces, at least make the prefix consistent. Move objects out of FXJS_V8 that are really part of JS_. R=thestig@chromium.org Review URL: https://codereview.chromium.org/1347833002 .
Diffstat (limited to 'fpdfsdk/src/javascript/JS_Value.cpp')
-rw-r--r--fpdfsdk/src/javascript/JS_Value.cpp388
1 files changed, 331 insertions, 57 deletions
diff --git a/fpdfsdk/src/javascript/JS_Value.cpp b/fpdfsdk/src/javascript/JS_Value.cpp
index 7fb2116e1f..3b8f597e96 100644
--- a/fpdfsdk/src/javascript/JS_Value.cpp
+++ b/fpdfsdk/src/javascript/JS_Value.cpp
@@ -10,14 +10,18 @@
#include "../../include/javascript/JS_Value.h"
#include "../../include/javascript/Document.h"
+static const FX_DWORD g_nan[2] = {0, 0x7FF80000};
+static double GetNan() {
+ return *(double*)g_nan;
+}
+
/* ---------------------------- CJS_Value ---------------------------- */
CJS_Value::CJS_Value(v8::Isolate* isolate)
: m_eType(VT_unknown), m_isolate(isolate) {}
-CJS_Value::CJS_Value(v8::Isolate* isolate,
- v8::Local<v8::Value> pValue,
- FXJSVALUETYPE t)
- : m_pValue(pValue), m_eType(t), m_isolate(isolate) {}
+CJS_Value::CJS_Value(v8::Isolate* isolate, v8::Local<v8::Value> pValue, Type t)
+ : m_eType(t), m_pValue(pValue), m_isolate(isolate) {
+}
CJS_Value::CJS_Value(v8::Isolate* isolate, const int& iValue)
: m_isolate(isolate) {
@@ -73,7 +77,7 @@ CJS_Value::CJS_Value(v8::Isolate* isolate, CJS_Array& array)
CJS_Value::~CJS_Value() {}
-void CJS_Value::Attach(v8::Local<v8::Value> pValue, FXJSVALUETYPE t) {
+void CJS_Value::Attach(v8::Local<v8::Value> pValue, Type t) {
m_pValue = pValue;
m_eType = t;
}
@@ -92,15 +96,15 @@ void CJS_Value::Detach() {
*/
int CJS_Value::ToInt() const {
- return JS_ToInt32(m_isolate, m_pValue);
+ return FXJS_ToInt32(m_isolate, m_pValue);
}
bool CJS_Value::ToBool() const {
- return JS_ToBoolean(m_isolate, m_pValue);
+ return FXJS_ToBoolean(m_isolate, m_pValue);
}
double CJS_Value::ToDouble() const {
- return JS_ToNumber(m_isolate, m_pValue);
+ return FXJS_ToNumber(m_isolate, m_pValue);
}
float CJS_Value::ToFloat() const {
@@ -108,16 +112,16 @@ float CJS_Value::ToFloat() const {
}
CJS_Object* CJS_Value::ToCJSObject() const {
- v8::Local<v8::Object> pObj = JS_ToObject(m_isolate, m_pValue);
- return (CJS_Object*)JS_GetPrivate(m_isolate, pObj);
+ v8::Local<v8::Object> pObj = FXJS_ToObject(m_isolate, m_pValue);
+ return (CJS_Object*)FXJS_GetPrivate(m_isolate, pObj);
}
v8::Local<v8::Object> CJS_Value::ToV8Object() const {
- return JS_ToObject(m_isolate, m_pValue);
+ return FXJS_ToObject(m_isolate, m_pValue);
}
CFX_WideString CJS_Value::ToCFXWideString() const {
- return JS_ToString(m_isolate, m_pValue);
+ return FXJS_ToString(m_isolate, m_pValue);
}
CFX_ByteString CJS_Value::ToCFXByteString() const {
@@ -130,7 +134,7 @@ v8::Local<v8::Value> CJS_Value::ToV8Value() const {
v8::Local<v8::Array> CJS_Value::ToV8Array() const {
if (IsArrayObject())
- return v8::Local<v8::Array>::Cast(JS_ToObject(m_isolate, m_pValue));
+ return v8::Local<v8::Array>::Cast(FXJS_ToObject(m_isolate, m_pValue));
return v8::Local<v8::Array>();
}
@@ -138,31 +142,27 @@ v8::Local<v8::Array> CJS_Value::ToV8Array() const {
*/
void CJS_Value::operator=(int iValue) {
- m_pValue = JS_NewNumber(m_isolate, iValue);
-
+ m_pValue = FXJS_NewNumber(m_isolate, iValue);
m_eType = VT_number;
}
void CJS_Value::operator=(bool bValue) {
- m_pValue = JS_NewBoolean(m_isolate, bValue);
-
+ m_pValue = FXJS_NewBoolean(m_isolate, bValue);
m_eType = VT_boolean;
}
void CJS_Value::operator=(double dValue) {
- m_pValue = JS_NewNumber(m_isolate, dValue);
-
+ m_pValue = FXJS_NewNumber(m_isolate, dValue);
m_eType = VT_number;
}
void CJS_Value::operator=(float fValue) {
- m_pValue = JS_NewNumber(m_isolate, fValue);
+ m_pValue = FXJS_NewNumber(m_isolate, fValue);
m_eType = VT_number;
}
void CJS_Value::operator=(v8::Local<v8::Object> pObj) {
- m_pValue = JS_NewObject(m_isolate, pObj);
-
+ m_pValue = FXJS_NewObject(m_isolate, pObj);
m_eType = VT_fxobject;
}
@@ -179,14 +179,12 @@ void CJS_Value::operator=(CJS_Document* pJsDoc) {
}
void CJS_Value::operator=(const FX_WCHAR* pWstr) {
- m_pValue = JS_NewString(m_isolate, (wchar_t*)pWstr);
-
+ m_pValue = FXJS_NewString(m_isolate, (wchar_t*)pWstr);
m_eType = VT_string;
}
void CJS_Value::SetNull() {
- m_pValue = JS_NewNull();
-
+ m_pValue = FXJS_NewNull();
m_eType = VT_null;
}
@@ -195,20 +193,17 @@ void CJS_Value::operator=(const FX_CHAR* pStr) {
}
void CJS_Value::operator=(CJS_Array& array) {
- m_pValue = JS_NewObject2(m_isolate, (v8::Local<v8::Array>)array);
-
+ m_pValue = FXJS_NewObject2(m_isolate, (v8::Local<v8::Array>)array);
m_eType = VT_object;
}
void CJS_Value::operator=(CJS_Date& date) {
- m_pValue = JS_NewDate(m_isolate, (double)date);
-
+ m_pValue = FXJS_NewDate(m_isolate, (double)date);
m_eType = VT_date;
}
void CJS_Value::operator=(CJS_Value value) {
m_pValue = value.ToV8Value();
-
m_eType = value.m_eType;
m_isolate = value.m_isolate;
}
@@ -216,7 +211,7 @@ void CJS_Value::operator=(CJS_Value value) {
/* ----------------------------------------------------------------------------------------
*/
-FXJSVALUETYPE CJS_Value::GetType() const {
+CJS_Value::Type CJS_Value::GetType() const {
if (m_pValue.IsEmpty())
return VT_unknown;
if (m_pValue->IsString())
@@ -251,7 +246,7 @@ FX_BOOL CJS_Value::IsDateObject() const {
// CJS_Value::operator CJS_Array()
FX_BOOL CJS_Value::ConvertToArray(CJS_Array& array) const {
if (IsArrayObject()) {
- array.Attach(JS_ToArray(m_isolate, m_pValue));
+ array.Attach(FXJS_ToArray(m_isolate, m_pValue));
return TRUE;
}
@@ -424,27 +419,26 @@ FX_BOOL CJS_Array::IsAttached() {
void CJS_Array::GetElement(unsigned index, CJS_Value& value) {
if (m_pArray.IsEmpty())
return;
- v8::Local<v8::Value> p = JS_GetArrayElement(m_isolate, m_pArray, index);
- value.Attach(p, VT_object);
+ v8::Local<v8::Value> p = FXJS_GetArrayElement(m_isolate, m_pArray, index);
+ value.Attach(p, CJS_Value::VT_object);
}
void CJS_Array::SetElement(unsigned index, CJS_Value value) {
if (m_pArray.IsEmpty())
- m_pArray = JS_NewArray(m_isolate);
+ m_pArray = FXJS_NewArray(m_isolate);
- JS_PutArrayElement(m_isolate, m_pArray, index, value.ToV8Value(),
- value.GetType());
+ FXJS_PutArrayElement(m_isolate, m_pArray, index, value.ToV8Value());
}
int CJS_Array::GetLength() {
if (m_pArray.IsEmpty())
return 0;
- return JS_GetArrayLength(m_pArray);
+ return FXJS_GetArrayLength(m_pArray);
}
CJS_Array::operator v8::Local<v8::Array>() {
if (m_pArray.IsEmpty())
- m_pArray = JS_NewArray(m_isolate);
+ m_pArray = FXJS_NewArray(m_isolate);
return m_pArray;
}
@@ -456,7 +450,7 @@ CJS_Date::CJS_Date(v8::Isolate* isolate) : m_isolate(isolate) {}
CJS_Date::CJS_Date(v8::Isolate* isolate, double dMsec_time) {
m_isolate = isolate;
- m_pDate = JS_NewDate(isolate, dMsec_time);
+ m_pDate = FXJS_NewDate(isolate, dMsec_time);
}
CJS_Date::CJS_Date(v8::Isolate* isolate,
@@ -467,7 +461,7 @@ CJS_Date::CJS_Date(v8::Isolate* isolate,
int min,
int sec) {
m_isolate = isolate;
- m_pDate = JS_NewDate(isolate, MakeDate(year, mon, day, hour, min, sec, 0));
+ m_pDate = FXJS_NewDate(isolate, MakeDate(year, mon, day, hour, min, sec, 0));
}
double CJS_Date::MakeDate(int year,
@@ -486,7 +480,7 @@ CJS_Date::~CJS_Date() {}
FX_BOOL CJS_Date::IsValidDate() {
if (m_pDate.IsEmpty())
return FALSE;
- return !JS_PortIsNan(JS_ToNumber(m_isolate, m_pDate));
+ return !JS_PortIsNan(FXJS_ToNumber(m_isolate, m_pDate));
}
void CJS_Date::Attach(v8::Local<v8::Value> pDate) {
@@ -495,7 +489,7 @@ void CJS_Date::Attach(v8::Local<v8::Value> pDate) {
int CJS_Date::GetYear() {
if (IsValidDate())
- return JS_GetYearFromTime(JS_LocalTime(JS_ToNumber(m_isolate, m_pDate)));
+ return JS_GetYearFromTime(JS_LocalTime(FXJS_ToNumber(m_isolate, m_pDate)));
return 0;
}
@@ -503,12 +497,12 @@ int CJS_Date::GetYear() {
void CJS_Date::SetYear(int iYear) {
double date = MakeDate(iYear, GetMonth(), GetDay(), GetHours(), GetMinutes(),
GetSeconds(), 0);
- JS_ValueCopy(m_pDate, JS_NewDate(m_isolate, date));
+ FXJS_ValueCopy(m_pDate, FXJS_NewDate(m_isolate, date));
}
int CJS_Date::GetMonth() {
if (IsValidDate())
- return JS_GetMonthFromTime(JS_LocalTime(JS_ToNumber(m_isolate, m_pDate)));
+ return JS_GetMonthFromTime(JS_LocalTime(FXJS_ToNumber(m_isolate, m_pDate)));
return 0;
}
@@ -516,12 +510,12 @@ int CJS_Date::GetMonth() {
void CJS_Date::SetMonth(int iMonth) {
double date = MakeDate(GetYear(), iMonth, GetDay(), GetHours(), GetMinutes(),
GetSeconds(), 0);
- JS_ValueCopy(m_pDate, JS_NewDate(m_isolate, date));
+ FXJS_ValueCopy(m_pDate, FXJS_NewDate(m_isolate, date));
}
int CJS_Date::GetDay() {
if (IsValidDate())
- return JS_GetDayFromTime(JS_LocalTime(JS_ToNumber(m_isolate, m_pDate)));
+ return JS_GetDayFromTime(JS_LocalTime(FXJS_ToNumber(m_isolate, m_pDate)));
return 0;
}
@@ -529,12 +523,12 @@ int CJS_Date::GetDay() {
void CJS_Date::SetDay(int iDay) {
double date = MakeDate(GetYear(), GetMonth(), iDay, GetHours(), GetMinutes(),
GetSeconds(), 0);
- JS_ValueCopy(m_pDate, JS_NewDate(m_isolate, date));
+ FXJS_ValueCopy(m_pDate, FXJS_NewDate(m_isolate, date));
}
int CJS_Date::GetHours() {
if (IsValidDate())
- return JS_GetHourFromTime(JS_LocalTime(JS_ToNumber(m_isolate, m_pDate)));
+ return JS_GetHourFromTime(JS_LocalTime(FXJS_ToNumber(m_isolate, m_pDate)));
return 0;
}
@@ -542,12 +536,12 @@ int CJS_Date::GetHours() {
void CJS_Date::SetHours(int iHours) {
double date = MakeDate(GetYear(), GetMonth(), GetDay(), iHours, GetMinutes(),
GetSeconds(), 0);
- JS_ValueCopy(m_pDate, JS_NewDate(m_isolate, date));
+ FXJS_ValueCopy(m_pDate, FXJS_NewDate(m_isolate, date));
}
int CJS_Date::GetMinutes() {
if (IsValidDate())
- return JS_GetMinFromTime(JS_LocalTime(JS_ToNumber(m_isolate, m_pDate)));
+ return JS_GetMinFromTime(JS_LocalTime(FXJS_ToNumber(m_isolate, m_pDate)));
return 0;
}
@@ -555,12 +549,12 @@ int CJS_Date::GetMinutes() {
void CJS_Date::SetMinutes(int minutes) {
double date = MakeDate(GetYear(), GetMonth(), GetDay(), GetHours(), minutes,
GetSeconds(), 0);
- JS_ValueCopy(m_pDate, JS_NewDate(m_isolate, date));
+ FXJS_ValueCopy(m_pDate, FXJS_NewDate(m_isolate, date));
}
int CJS_Date::GetSeconds() {
if (IsValidDate())
- return JS_GetSecFromTime(JS_LocalTime(JS_ToNumber(m_isolate, m_pDate)));
+ return JS_GetSecFromTime(JS_LocalTime(FXJS_ToNumber(m_isolate, m_pDate)));
return 0;
}
@@ -568,7 +562,7 @@ int CJS_Date::GetSeconds() {
void CJS_Date::SetSeconds(int seconds) {
double date = MakeDate(GetYear(), GetMonth(), GetDay(), GetHours(),
GetMinutes(), seconds, 0);
- JS_ValueCopy(m_pDate, JS_NewDate(m_isolate, date));
+ FXJS_ValueCopy(m_pDate, FXJS_NewDate(m_isolate, date));
}
CJS_Date::operator v8::Local<v8::Value>() {
@@ -578,11 +572,291 @@ CJS_Date::operator v8::Local<v8::Value>() {
CJS_Date::operator double() const {
if (m_pDate.IsEmpty())
return 0.0;
- return JS_ToNumber(m_isolate, m_pDate);
+ return FXJS_ToNumber(m_isolate, m_pDate);
}
CFX_WideString CJS_Date::ToString() const {
if (m_pDate.IsEmpty())
return L"";
- return JS_ToString(m_isolate, m_pDate);
+ return FXJS_ToString(m_isolate, m_pDate);
+}
+
+double _getLocalTZA() {
+ if (!FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS))
+ return 0;
+ time_t t = 0;
+ time(&t);
+ localtime(&t);
+#if _MSC_VER >= 1900
+ // In gcc and in Visual Studio prior to VS 2015 'timezone' is a global
+ // variable declared in time.h. That variable was deprecated and in VS 2015
+ // is removed, with _get_timezone replacing it.
+ long timezone = 0;
+ _get_timezone(&timezone);
+#endif
+ return (double)(-(timezone * 1000));
+}
+
+int _getDaylightSavingTA(double d) {
+ if (!FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS))
+ return 0;
+ time_t t = (time_t)(d / 1000);
+ struct tm* tmp = localtime(&t);
+ if (tmp == NULL)
+ return 0;
+ if (tmp->tm_isdst > 0)
+ // One hour.
+ return (int)60 * 60 * 1000;
+ return 0;
+}
+
+double _Mod(double x, double y) {
+ double r = fmod(x, y);
+ if (r < 0)
+ r += y;
+ return r;
+}
+
+int _isfinite(double v) {
+#if _MSC_VER
+ return ::_finite(v);
+#else
+ return std::fabs(v) < std::numeric_limits<double>::max();
+#endif
+}
+
+double _toInteger(double n) {
+ return (n >= 0) ? FXSYS_floor(n) : -FXSYS_floor(-n);
+}
+
+bool _isLeapYear(int year) {
+ return (year % 4 == 0) && ((year % 100 != 0) || (year % 400 != 0));
+}
+
+int _DayFromYear(int y) {
+ return (int)(365 * (y - 1970.0) + FXSYS_floor((y - 1969.0) / 4) -
+ FXSYS_floor((y - 1901.0) / 100) +
+ FXSYS_floor((y - 1601.0) / 400));
+}
+
+double _TimeFromYear(int y) {
+ return ((double)86400000) * _DayFromYear(y);
+}
+
+double _TimeFromYearMonth(int y, int m) {
+ static int daysMonth[12] = {
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
+ static int leapDaysMonth[12] = {
+ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335};
+ int* pMonth = daysMonth;
+ if (_isLeapYear(y))
+ pMonth = leapDaysMonth;
+ return _TimeFromYear(y) + ((double)pMonth[m]) * 86400000;
+}
+
+int _Day(double t) {
+ return (int)FXSYS_floor(t / 86400000);
+}
+
+int _YearFromTime(double t) {
+ // estimate the time.
+ int y = 1970 + (int)(t / (365.0 * 86400000));
+ if (_TimeFromYear(y) <= t) {
+ while (_TimeFromYear(y + 1) <= t)
+ y++;
+ } else
+ while (_TimeFromYear(y - 1) > t)
+ y--;
+ return y;
+}
+
+int _DayWithinYear(double t) {
+ int year = _YearFromTime(t);
+ int day = _Day(t);
+ return day - _DayFromYear(year);
+}
+
+int _MonthFromTime(double t) {
+ int day = _DayWithinYear(t);
+ int year = _YearFromTime(t);
+ if (0 <= day && day < 31)
+ return 0;
+ if (31 <= day && day < 59 + _isLeapYear(year))
+ return 1;
+ if ((59 + _isLeapYear(year)) <= day && day < (90 + _isLeapYear(year)))
+ return 2;
+ if ((90 + _isLeapYear(year)) <= day && day < (120 + _isLeapYear(year)))
+ return 3;
+ if ((120 + _isLeapYear(year)) <= day && day < (151 + _isLeapYear(year)))
+ return 4;
+ if ((151 + _isLeapYear(year)) <= day && day < (181 + _isLeapYear(year)))
+ return 5;
+ if ((181 + _isLeapYear(year)) <= day && day < (212 + _isLeapYear(year)))
+ return 6;
+ if ((212 + _isLeapYear(year)) <= day && day < (243 + _isLeapYear(year)))
+ return 7;
+ if ((243 + _isLeapYear(year)) <= day && day < (273 + _isLeapYear(year)))
+ return 8;
+ if ((273 + _isLeapYear(year)) <= day && day < (304 + _isLeapYear(year)))
+ return 9;
+ if ((304 + _isLeapYear(year)) <= day && day < (334 + _isLeapYear(year)))
+ return 10;
+ if ((334 + _isLeapYear(year)) <= day && day < (365 + _isLeapYear(year)))
+ return 11;
+
+ return -1;
+}
+
+int _DateFromTime(double t) {
+ int day = _DayWithinYear(t);
+ int year = _YearFromTime(t);
+ bool leap = _isLeapYear(year);
+ int month = _MonthFromTime(t);
+ switch (month) {
+ case 0:
+ return day + 1;
+ case 1:
+ return day - 30;
+ case 2:
+ return day - 58 - leap;
+ case 3:
+ return day - 89 - leap;
+ case 4:
+ return day - 119 - leap;
+ case 5:
+ return day - 150 - leap;
+ case 6:
+ return day - 180 - leap;
+ case 7:
+ return day - 211 - leap;
+ case 8:
+ return day - 242 - leap;
+ case 9:
+ return day - 272 - leap;
+ case 10:
+ return day - 303 - leap;
+ case 11:
+ return day - 333 - leap;
+ default:
+ return 0;
+ }
+}
+
+double JS_GetDateTime() {
+ if (!FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS))
+ return 0;
+ time_t t = time(NULL);
+ struct tm* pTm = localtime(&t);
+
+ int year = pTm->tm_year + 1900;
+ double t1 = _TimeFromYear(year);
+
+ return t1 + pTm->tm_yday * 86400000.0 + pTm->tm_hour * 3600000.0 +
+ pTm->tm_min * 60000.0 + pTm->tm_sec * 1000.0;
+}
+
+int JS_GetYearFromTime(double dt) {
+ return _YearFromTime(dt);
+}
+
+int JS_GetMonthFromTime(double dt) {
+ return _MonthFromTime(dt);
+}
+
+int JS_GetDayFromTime(double dt) {
+ return _DateFromTime(dt);
+}
+
+int JS_GetHourFromTime(double dt) {
+ return (int)_Mod(FXSYS_floor((double)(dt / (60 * 60 * 1000))), 24);
+}
+
+int JS_GetMinFromTime(double dt) {
+ return (int)_Mod(FXSYS_floor((double)(dt / (60 * 1000))), 60);
+}
+
+int JS_GetSecFromTime(double dt) {
+ return (int)_Mod(FXSYS_floor((double)(dt / 1000)), 60);
+}
+
+double JS_DateParse(const wchar_t* string) {
+ v8::Isolate* pIsolate = v8::Isolate::GetCurrent();
+ v8::Isolate::Scope isolate_scope(pIsolate);
+ v8::HandleScope scope(pIsolate);
+
+ v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
+
+ // Use the built-in object method.
+ v8::Local<v8::Value> v =
+ context->Global()
+ ->Get(context, v8::String::NewFromUtf8(pIsolate, "Date",
+ v8::NewStringType::kNormal)
+ .ToLocalChecked())
+ .ToLocalChecked();
+ if (v->IsObject()) {
+ v8::Local<v8::Object> o = v->ToObject(context).ToLocalChecked();
+ v = o->Get(context, v8::String::NewFromUtf8(pIsolate, "parse",
+ v8::NewStringType::kNormal)
+ .ToLocalChecked()).ToLocalChecked();
+ if (v->IsFunction()) {
+ v8::Local<v8::Function> funC = v8::Local<v8::Function>::Cast(v);
+
+ const int argc = 1;
+ v8::Local<v8::String> timeStr = FXJS_WSToJSString(pIsolate, string);
+ v8::Local<v8::Value> argv[argc] = {timeStr};
+ v = funC->Call(context, context->Global(), argc, argv).ToLocalChecked();
+ if (v->IsNumber()) {
+ double date = v->ToNumber(context).ToLocalChecked()->Value();
+ if (!_isfinite(date))
+ return date;
+ return date + _getLocalTZA() + _getDaylightSavingTA(date);
+ }
+ }
+ }
+ return 0;
+}
+
+double JS_MakeDay(int nYear, int nMonth, int nDate) {
+ if (!_isfinite(nYear) || !_isfinite(nMonth) || !_isfinite(nDate))
+ return GetNan();
+ double y = _toInteger(nYear);
+ double m = _toInteger(nMonth);
+ double dt = _toInteger(nDate);
+ double ym = y + FXSYS_floor((double)m / 12);
+ double mn = _Mod(m, 12);
+
+ double t = _TimeFromYearMonth((int)ym, (int)mn);
+
+ if (_YearFromTime(t) != ym || _MonthFromTime(t) != mn ||
+ _DateFromTime(t) != 1)
+ return GetNan();
+ return _Day(t) + dt - 1;
+}
+
+double JS_MakeTime(int nHour, int nMin, int nSec, int nMs) {
+ if (!_isfinite(nHour) || !_isfinite(nMin) || !_isfinite(nSec) ||
+ !_isfinite(nMs))
+ return GetNan();
+
+ double h = _toInteger(nHour);
+ double m = _toInteger(nMin);
+ double s = _toInteger(nSec);
+ double milli = _toInteger(nMs);
+
+ return h * 3600000 + m * 60000 + s * 1000 + milli;
+}
+
+double JS_MakeDate(double day, double time) {
+ if (!_isfinite(day) || !_isfinite(time))
+ return GetNan();
+
+ return day * 86400000 + time;
+}
+
+bool JS_PortIsNan(double d) {
+ return d != d;
+}
+
+double JS_LocalTime(double d) {
+ return JS_GetDateTime() + _getDaylightSavingTA(d);
}