cfxjs_engine.cpp | Explore in Territory

// Copyright 2014 The PDFium Authors
// 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 "fxjs/cfxjs_engine.h"

#include <memory>
#include <utility>

#include "core/fxcrt/check.h"
#include "core/fxcrt/check_op.h"
#include "core/fxcrt/stl_util.h"
#include "core/fxcrt/unowned_ptr.h"
#include "fxjs/cfx_v8_array_buffer_allocator.h"
#include "fxjs/cjs_object.h"
#include "fxjs/fxv8.h"
#include "fxjs/xfa/cfxjse_runtimedata.h"
#include "v8/include/v8-context.h"
#include "v8/include/v8-exception.h"
#include "v8/include/v8-isolate.h"
#include "v8/include/v8-message.h"
#include "v8/include/v8-primitive.h"
#include "v8/include/v8-script.h"
#include "v8/include/v8-util.h"

namespace {

unsigned int g_embedderDataSlot = …;
v8::Isolate* g_isolate = …;
size_t g_isolate_ref_count = …;
CFX_V8ArrayBufferAllocator* g_arrayBufferAllocator = …;
v8::Global<v8::ObjectTemplate>* g_DefaultGlobalObjectTemplate = …;

// Only the address matters, values are for humans debugging. ASLR should
// ensure that these values are unlikely to arise otherwise. Keep these
// wchar_t to prevent the compiler from doing something clever, like
// aligning them on a byte boundary to save space, which would make them
// incompatible for use as V8 aligned pointers.
const wchar_t kPerObjectDataTag[] = …;
const wchar_t kPerIsolateDataTag[] = …;

void* GetAlignedPointerForPerObjectDataTag() { … }

std::pair<int, int> GetLineAndColumnFromError(v8::Local<v8::Message> message,
                                              v8::Local<v8::Context> context) { … }

}  // namespace

// static
void CFXJS_PerObjectData::SetNewDataInObject(FXJSOBJTYPE eObjType,
                                             uint32_t nObjDefnID,
                                             v8::Local<v8::Object> pObj) { … }

// static
CFXJS_PerObjectData* CFXJS_PerObjectData::GetFromObject(
    v8::Local<v8::Object> pObj) { … }

//  static
bool CFXJS_PerObjectData::HasInternalFields(v8::Local<v8::Object> pObj) { … }

//  static
CFXJS_PerObjectData* CFXJS_PerObjectData::ExtractFromObject(
    v8::Local<v8::Object> pObj) { … }

CFXJS_PerObjectData::CFXJS_PerObjectData(FXJSOBJTYPE eObjType,
                                         uint32_t nObjDefnID)
    : … { … }

CFXJS_PerObjectData::~CFXJS_PerObjectData() = default;

// Global weak map to save dynamic objects.
class V8TemplateMapTraits final
    : public v8::StdMapTraits<CFXJS_PerObjectData*, v8::Object> { … };

class V8TemplateMap { … };

class CFXJS_ObjDefinition { … };

static v8::Local<v8::ObjectTemplate> GetGlobalObjectTemplate(
    v8::Isolate* pIsolate) { … }

void V8TemplateMapTraits::Dispose(v8::Isolate* isolate,
                                  v8::Global<v8::Object> value,
                                  WeakCallbackDataType* key) { … }

void V8TemplateMapTraits::DisposeWeak(
    const v8::WeakCallbackInfo<WeakCallbackDataType>& data) { … }

V8TemplateMapTraits::MapType* V8TemplateMapTraits::MapFromWeakCallbackInfo(
    const v8::WeakCallbackInfo<WeakCallbackDataType>& info) { … }

void FXJS_Initialize(unsigned int embedderDataSlot, v8::Isolate* pIsolate) { … }

void FXJS_Release() { … }

bool FXJS_GetIsolate(v8::Isolate** pResultIsolate) { … }

size_t FXJS_GlobalIsolateRefCount() { … }

// static
void CFXJS_PerIsolateData::SetUp(v8::Isolate* pIsolate) { … }

// static
CFXJS_PerIsolateData* CFXJS_PerIsolateData::Get(v8::Isolate* pIsolate) { … }

CFXJS_PerIsolateData::CFXJS_PerIsolateData(v8::Isolate* pIsolate)
    : … { … }

CFXJS_PerIsolateData::~CFXJS_PerIsolateData() = default;

uint32_t CFXJS_PerIsolateData::CurrentMaxObjDefinitionID() const { … }

CFXJS_ObjDefinition* CFXJS_PerIsolateData::ObjDefinitionForID(
    uint32_t id) const { … }

uint32_t CFXJS_PerIsolateData::AssignIDForObjDefinition(
    std::unique_ptr<CFXJS_ObjDefinition> pDefn) { … }

CFXJS_Engine::CFXJS_Engine() : … { … }

CFXJS_Engine::CFXJS_Engine(v8::Isolate* pIsolate) : … { … }

CFXJS_Engine::~CFXJS_Engine() = default;

// static
uint32_t CFXJS_Engine::GetObjDefnID(v8::Local<v8::Object> pObj) { … }

// static
void CFXJS_Engine::SetBinding(v8::Local<v8::Object> pObj,
                              std::unique_ptr<CFXJS_PerObjectData::Binding> p) { … }

// static
void CFXJS_Engine::FreePerObjectData(v8::Local<v8::Object> pObj) { … }

uint32_t CFXJS_Engine::DefineObj(const char* sObjName,
                                 FXJSOBJTYPE eObjType,
                                 CFXJS_Engine::Constructor pConstructor,
                                 CFXJS_Engine::Destructor pDestructor) { … }

void CFXJS_Engine::DefineObjMethod(uint32_t nObjDefnID,
                                   const char* sMethodName,
                                   v8::FunctionCallback pMethodCall) { … }

void CFXJS_Engine::DefineObjProperty(uint32_t nObjDefnID,
                                     const char* sPropName,
                                     v8::AccessorNameGetterCallback pPropGet,
                                     v8::AccessorNameSetterCallback pPropPut) { … }

void CFXJS_Engine::DefineObjAllProperties(
    uint32_t nObjDefnID,
    v8::NamedPropertyQueryCallback pPropQurey,
    v8::NamedPropertyGetterCallback pPropGet,
    v8::NamedPropertySetterCallback pPropPut,
    v8::NamedPropertyDeleterCallback pPropDel,
    v8::NamedPropertyEnumeratorCallback pPropEnum) { … }

void CFXJS_Engine::DefineObjConst(uint32_t nObjDefnID,
                                  const char* sConstName,
                                  v8::Local<v8::Value> pDefault) { … }

void CFXJS_Engine::DefineGlobalMethod(const char* sMethodName,
                                      v8::FunctionCallback pMethodCall) { … }

void CFXJS_Engine::DefineGlobalConst(const wchar_t* sConstName,
                                     v8::FunctionCallback pConstGetter) { … }

void CFXJS_Engine::InitializeEngine() { … }

void CFXJS_Engine::ReleaseEngine() { … }

std::optional<IJS_Runtime::JS_Error> CFXJS_Engine::Execute(
    const WideString& script) { … }

v8::Local<v8::Object> CFXJS_Engine::NewFXJSBoundObject(uint32_t nObjDefnID,
                                                       FXJSOBJTYPE type) { … }

v8::Local<v8::Object> CFXJS_Engine::GetThisObj() { … }

void CFXJS_Engine::Error(const WideString& message) { … }

v8::Local<v8::Context> CFXJS_Engine::GetV8Context() { … }

// static
CFXJS_PerObjectData::Binding* CFXJS_Engine::GetBinding(
    v8::Isolate* pIsolate,
    v8::Local<v8::Object> pObj) { … }

v8::Local<v8::Array> CFXJS_Engine::GetConstArray(const WideString& name) { … }

void CFXJS_Engine::SetConstArray(const WideString& name,
                                 v8::Local<v8::Array> array) { … }
chromium/third_party/pdfium/fxjs/cfxjs_engine.cpp
