diff options
Diffstat (limited to 'fxjse/value.cpp')
| -rw-r--r-- | fxjse/value.cpp | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/fxjse/value.cpp b/fxjse/value.cpp deleted file mode 100644 index aba640210a..0000000000 --- a/fxjse/value.cpp +++ /dev/null @@ -1,348 +0,0 @@ -// Copyright 2014 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include "fxjse/include/cfxjse_value.h" - -#include <math.h> - -#include "fxjse/context.h" -#include "fxjse/include/cfxjse_class.h" - -namespace { - -double FXJSE_ftod(FX_FLOAT fNumber) { - static_assert(sizeof(FX_FLOAT) == 4, "FX_FLOAT of incorrect size"); - - uint32_t nFloatBits = (uint32_t&)fNumber; - uint8_t nExponent = (uint8_t)(nFloatBits >> 23); - if (nExponent == 0 || nExponent == 255) - return fNumber; - - int8_t nErrExp = nExponent - 150; - if (nErrExp >= 0) - return fNumber; - - double dwError = pow(2.0, nErrExp), dwErrorHalf = dwError / 2; - double dNumber = fNumber, dNumberAbs = fabs(fNumber); - double dNumberAbsMin = dNumberAbs - dwErrorHalf, - dNumberAbsMax = dNumberAbs + dwErrorHalf; - int32_t iErrPos = 0; - if (floor(dNumberAbsMin) == floor(dNumberAbsMax)) { - dNumberAbsMin = fmod(dNumberAbsMin, 1.0); - dNumberAbsMax = fmod(dNumberAbsMax, 1.0); - int32_t iErrPosMin = 1, iErrPosMax = 38; - do { - int32_t iMid = (iErrPosMin + iErrPosMax) / 2; - double dPow = pow(10.0, iMid); - if (floor(dNumberAbsMin * dPow) == floor(dNumberAbsMax * dPow)) { - iErrPosMin = iMid + 1; - } else { - iErrPosMax = iMid; - } - } while (iErrPosMin < iErrPosMax); - iErrPos = iErrPosMax; - } - double dPow = pow(10.0, iErrPos); - return fNumber < 0 ? ceil(dNumber * dPow - 0.5) / dPow - : floor(dNumber * dPow + 0.5) / dPow; -} - -} // namespace - -void FXJSE_ThrowMessage(const CFX_ByteStringC& utf8Message) { - v8::Isolate* pIsolate = v8::Isolate::GetCurrent(); - ASSERT(pIsolate); - - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate); - v8::Local<v8::String> hMessage = v8::String::NewFromUtf8( - pIsolate, utf8Message.c_str(), v8::String::kNormalString, - utf8Message.GetLength()); - v8::Local<v8::Value> hError = v8::Exception::Error(hMessage); - pIsolate->ThrowException(hError); -} - -CFXJSE_Value::CFXJSE_Value(v8::Isolate* pIsolate) : m_pIsolate(pIsolate) {} - -CFXJSE_Value::~CFXJSE_Value() {} - -CFXJSE_HostObject* CFXJSE_Value::ToHostObject(CFXJSE_Class* lpClass) const { - ASSERT(!m_hValue.IsEmpty()); - - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> pValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - ASSERT(!pValue.IsEmpty()); - - if (!pValue->IsObject()) - return nullptr; - - return FXJSE_RetrieveObjectBinding(pValue.As<v8::Object>(), lpClass); -} - -void CFXJSE_Value::SetObject(CFXJSE_HostObject* lpObject, - CFXJSE_Class* pClass) { - if (!pClass) { - ASSERT(!lpObject); - SetJSObject(); - return; - } - SetHostObject(lpObject, pClass); -} - -void CFXJSE_Value::SetHostObject(CFXJSE_HostObject* lpObject, - CFXJSE_Class* lpClass) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - ASSERT(lpClass); - v8::Local<v8::FunctionTemplate> hClass = - v8::Local<v8::FunctionTemplate>::New(m_pIsolate, lpClass->m_hTemplate); - v8::Local<v8::Object> hObject = hClass->InstanceTemplate()->NewInstance(); - FXJSE_UpdateObjectBinding(hObject, lpObject); - m_hValue.Reset(m_pIsolate, hObject); -} - -void CFXJSE_Value::SetArray(uint32_t uValueCount, CFXJSE_Value** rgValues) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Array> hArrayObject = v8::Array::New(m_pIsolate, uValueCount); - if (rgValues) { - for (uint32_t i = 0; i < uValueCount; i++) { - if (rgValues[i]) { - hArrayObject->Set(i, v8::Local<v8::Value>::New( - m_pIsolate, rgValues[i]->DirectGetValue())); - } - } - } - m_hValue.Reset(m_pIsolate, hArrayObject); -} - -void CFXJSE_Value::SetDate(double dDouble) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hDate = v8::Date::New(m_pIsolate, dDouble); - m_hValue.Reset(m_pIsolate, hDate); -} - -void CFXJSE_Value::SetFloat(FX_FLOAT fFloat) { - CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate); - v8::Local<v8::Value> pValue = v8::Number::New(m_pIsolate, FXJSE_ftod(fFloat)); - m_hValue.Reset(m_pIsolate, pValue); -} - -FX_BOOL CFXJSE_Value::SetObjectProperty(const CFX_ByteStringC& szPropName, - CFXJSE_Value* lpPropValue) { - ASSERT(lpPropValue); - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hObject = - v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - if (!hObject->IsObject()) - return FALSE; - - v8::Local<v8::Value> hPropValue = - v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->DirectGetValue()); - return (FX_BOOL)hObject.As<v8::Object>()->Set( - v8::String::NewFromUtf8(m_pIsolate, szPropName.c_str(), - v8::String::kNormalString, - szPropName.GetLength()), - hPropValue); -} - -FX_BOOL CFXJSE_Value::GetObjectProperty(const CFX_ByteStringC& szPropName, - CFXJSE_Value* lpPropValue) { - ASSERT(lpPropValue); - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hObject = - v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - if (!hObject->IsObject()) - return FALSE; - - v8::Local<v8::Value> hPropValue = - hObject.As<v8::Object>()->Get(v8::String::NewFromUtf8( - m_pIsolate, szPropName.c_str(), v8::String::kNormalString, - szPropName.GetLength())); - lpPropValue->ForceSetValue(hPropValue); - return TRUE; -} - -FX_BOOL CFXJSE_Value::SetObjectProperty(uint32_t uPropIdx, - CFXJSE_Value* lpPropValue) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hObject = - v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - if (!hObject->IsObject()) - return FALSE; - - v8::Local<v8::Value> hPropValue = - v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->DirectGetValue()); - return (FX_BOOL)hObject.As<v8::Object>()->Set(uPropIdx, hPropValue); -} - -FX_BOOL CFXJSE_Value::GetObjectPropertyByIdx(uint32_t uPropIdx, - CFXJSE_Value* lpPropValue) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hObject = - v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - if (!hObject->IsObject()) - return FALSE; - - v8::Local<v8::Value> hPropValue = hObject.As<v8::Object>()->Get(uPropIdx); - lpPropValue->ForceSetValue(hPropValue); - return TRUE; -} - -FX_BOOL CFXJSE_Value::DeleteObjectProperty(const CFX_ByteStringC& szPropName) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hObject = - v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - if (!hObject->IsObject()) - return FALSE; - - hObject.As<v8::Object>()->Delete(v8::String::NewFromUtf8( - m_pIsolate, szPropName.c_str(), v8::String::kNormalString, - szPropName.GetLength())); - return TRUE; -} - -FX_BOOL CFXJSE_Value::HasObjectOwnProperty(const CFX_ByteStringC& szPropName, - FX_BOOL bUseTypeGetter) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hObject = - v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - if (!hObject->IsObject()) - return FALSE; - - v8::Local<v8::String> hKey = v8::String::NewFromUtf8( - m_pIsolate, szPropName.c_str(), v8::String::kNormalString, - szPropName.GetLength()); - return hObject.As<v8::Object>()->HasRealNamedProperty(hKey) || - (bUseTypeGetter && - hObject.As<v8::Object>() - ->HasOwnProperty(m_pIsolate->GetCurrentContext(), hKey) - .FromMaybe(false)); -} - -FX_BOOL CFXJSE_Value::SetObjectOwnProperty(const CFX_ByteStringC& szPropName, - CFXJSE_Value* lpPropValue) { - ASSERT(lpPropValue); - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hObject = - v8::Local<v8::Value>::New(m_pIsolate, m_hValue); - if (!hObject->IsObject()) - return FALSE; - - v8::Local<v8::Value> pValue = - v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->m_hValue); - return hObject.As<v8::Object>() - ->DefineOwnProperty( - m_pIsolate->GetCurrentContext(), - v8::String::NewFromUtf8(m_pIsolate, szPropName.c_str(), - v8::String::kNormalString, - szPropName.GetLength()), - pValue) - .FromMaybe(false); -} - -FX_BOOL CFXJSE_Value::SetFunctionBind(CFXJSE_Value* lpOldFunction, - CFXJSE_Value* lpNewThis) { - ASSERT(lpOldFunction && lpNewThis); - - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> rgArgs[2]; - v8::Local<v8::Value> hOldFunction = - v8::Local<v8::Value>::New(m_pIsolate, lpOldFunction->DirectGetValue()); - if (hOldFunction.IsEmpty() || !hOldFunction->IsFunction()) - return FALSE; - - rgArgs[0] = hOldFunction; - v8::Local<v8::Value> hNewThis = - v8::Local<v8::Value>::New(m_pIsolate, lpNewThis->DirectGetValue()); - if (hNewThis.IsEmpty()) - return FALSE; - - rgArgs[1] = hNewThis; - v8::Local<v8::String> hBinderFuncSource = - v8::String::NewFromUtf8(m_pIsolate, - "(function (oldfunction, newthis) { return " - "oldfunction.bind(newthis); })"); - v8::Local<v8::Function> hBinderFunc = - v8::Script::Compile(hBinderFuncSource)->Run().As<v8::Function>(); - v8::Local<v8::Value> hBoundFunction = - hBinderFunc->Call(m_pIsolate->GetCurrentContext()->Global(), 2, rgArgs); - if (hBoundFunction.IsEmpty() || !hBoundFunction->IsFunction()) - return FALSE; - - m_hValue.Reset(m_pIsolate, hBoundFunction); - return TRUE; -} - -#define FXJSE_INVALID_PTR ((void*)(intptr_t)-1) -FX_BOOL CFXJSE_Value::Call(CFXJSE_Value* lpReceiver, - CFXJSE_Value* lpRetValue, - uint32_t nArgCount, - CFXJSE_Value** lpArgs) { - CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); - v8::Local<v8::Value> hFunctionValue = - v8::Local<v8::Value>::New(m_pIsolate, DirectGetValue()); - v8::Local<v8::Object> hFunctionObject = - !hFunctionValue.IsEmpty() && hFunctionValue->IsObject() - ? hFunctionValue.As<v8::Object>() - : v8::Local<v8::Object>(); - - v8::TryCatch trycatch(m_pIsolate); - if (hFunctionObject.IsEmpty() || !hFunctionObject->IsCallable()) { - if (lpRetValue) - lpRetValue->ForceSetValue(FXJSE_CreateReturnValue(m_pIsolate, trycatch)); - return FALSE; - } - - v8::Local<v8::Value> hReturnValue; - v8::Local<v8::Value>* lpLocalArgs = NULL; - if (nArgCount) { - lpLocalArgs = FX_Alloc(v8::Local<v8::Value>, nArgCount); - for (uint32_t i = 0; i < nArgCount; i++) { - new (lpLocalArgs + i) v8::Local<v8::Value>; - CFXJSE_Value* lpArg = lpArgs[i]; - if (lpArg) { - lpLocalArgs[i] = - v8::Local<v8::Value>::New(m_pIsolate, lpArg->DirectGetValue()); - } - if (lpLocalArgs[i].IsEmpty()) { - lpLocalArgs[i] = v8::Undefined(m_pIsolate); - } - } - } - - FX_BOOL bRetValue = TRUE; - if (lpReceiver == FXJSE_INVALID_PTR) { - v8::MaybeLocal<v8::Value> maybe_retvalue = - hFunctionObject->CallAsConstructor(m_pIsolate->GetCurrentContext(), - nArgCount, lpLocalArgs); - hReturnValue = maybe_retvalue.FromMaybe(v8::Local<v8::Value>()); - } else { - v8::Local<v8::Value> hReceiver; - if (lpReceiver) { - hReceiver = - v8::Local<v8::Value>::New(m_pIsolate, lpReceiver->DirectGetValue()); - } - if (hReceiver.IsEmpty() || !hReceiver->IsObject()) - hReceiver = v8::Object::New(m_pIsolate); - - v8::MaybeLocal<v8::Value> maybe_retvalue = hFunctionObject->CallAsFunction( - m_pIsolate->GetCurrentContext(), hReceiver, nArgCount, lpLocalArgs); - hReturnValue = maybe_retvalue.FromMaybe(v8::Local<v8::Value>()); - } - - if (trycatch.HasCaught()) { - hReturnValue = FXJSE_CreateReturnValue(m_pIsolate, trycatch); - bRetValue = FALSE; - } - - if (lpRetValue) - lpRetValue->ForceSetValue(hReturnValue); - - if (lpLocalArgs) { - for (uint32_t i = 0; i < nArgCount; i++) - lpLocalArgs[i].~Local(); - FX_Free(lpLocalArgs); - } - return bRetValue; -} |