IOBasicTypes::LongBufferSizeType ObjectByteReaderWithPosition::Read(IOBasicTypes::Byte* inBuffer,IOBasicTypes::LongBufferSizeType inBufferSize)
{
CREATE_ISOLATE_CONTEXT;
CREATE_ESCAPABLE_SCOPE;
Handle<Value> value = OBJECT_FROM_PERSISTENT(mObject)->Get(NEW_STRING("read"));
if(value->IsUndefined())
return 0;
Handle<Function> func = Handle<Function>::Cast(value);
Handle<Value> args[1];
args[0] = NEW_NUMBER(inBufferSize);
Handle<Value> result = func->Call(OBJECT_FROM_PERSISTENT(mObject), 1, args);
if(!result->IsArray())
return 0;
IOBasicTypes::LongBufferSizeType bufferLength = result->ToObject()->Get(NEW_STRING("length"))->ToObject()->Uint32Value();
for(IOBasicTypes::LongBufferSizeType i=0;i < bufferLength;++i)
inBuffer[i] = (IOBasicTypes::Byte)(result->ToObject()->Get((uint32_t)i)->ToNumber()->Uint32Value());
return bufferLength;
}
int V8Scope::type( const char *field ){
V8_SIMPLE_HEADER
Handle<Value> v = get( field );
if ( v->IsNull() )
return jstNULL;
if ( v->IsUndefined() )
return Undefined;
if ( v->IsString() )
return String;
if ( v->IsFunction() )
return Code;
if ( v->IsArray() )
return Array;
if ( v->IsBoolean() )
return Bool;
if ( v->IsInt32() )
return NumberInt;
if ( v->IsNumber() )
return NumberDouble;
if ( v->IsExternal() ){
uassert( 10230 , "can't handle external yet" , 0 );
return -1;
}
if ( v->IsDate() )
return Date;
if ( v->IsObject() )
return Object;
throw UserException( 12509, (string)"don't know what this is: " + field );
}
/*! Queues up an array to be sent to the sound card */
void Audio::AudioEngine::queueOutputBuffer( Handle<Array> result ) {
// Reset our record of the number of cached output samples
m_uNumCachedOutputSamples[m_uCurrentWriteBuffer] = 0;
if( m_bInterleaved ) {
for( int iSample=0; iSample<m_uSamplesPerBuffer*m_uOutputChannels; ++iSample )
setSample( iSample, result->Get(iSample) );
m_uNumCachedOutputSamples[m_uCurrentWriteBuffer] = result->Length()/m_uOutputChannels;
} else {
// Validate the structure of the output buffer array
if( !result->Get(0)->IsArray() ) {
NanThrowTypeError("Output buffer not properly setup, 0th channel is not an array");
return;
}
Handle<Array> item;
for( int iChannel=0; iChannel<m_uOutputChannels; ++iChannel ) {
for( int iSample=0; iSample<m_uSamplesPerBuffer; ++iSample ) {
item = Handle<Array>::Cast( result->Get(iChannel) );
if( item->IsArray() ) {
if( item->Length() > m_uNumCachedOutputSamples[m_uCurrentWriteBuffer] )
m_uNumCachedOutputSamples[m_uCurrentWriteBuffer] = item->Length();
setSample( iSample, item->Get(iSample) );
}
} // end for each sample
} // end for each channel
}
m_uCurrentWriteBuffer = (m_uCurrentWriteBuffer + 1)%m_uNumBuffers;
} // end AudioEngine::queueOutputBuffer()
int Conv::GetNaturalType(Handle<Object> val) {
if(val.IsEmpty()) return TYPE_INVALID;
if(val->IsDate()) return TYPE_DATE;
if(val->IsFunction()) return TYPE_FUNCTION;
if(val->IsArray()) return TYPE_ARRAY;
if(val->IsObject()) return TYPE_OBJECT;
return TYPE_INVALID;
}
int SerializePart(google::protobuf::Message *message, Handle<Object> subj) {
Nan::HandleScope scope;
// get a reflection
const Reflection *r = message->GetReflection();
const Descriptor *d = message->GetDescriptor();
// build a list of required properties
vector<string> required;
for (int i = 0; i < d->field_count(); i++) {
const FieldDescriptor *field = d->field(i);
if (field->is_required())
required.push_back(field->name());
}
// build a reflection
// get properties of passed object
Handle<Array> properties = subj->GetPropertyNames();
uint32_t len = properties->Length();
// check that all required properties are present
for (uint32_t i = 0; i < required.size(); i++) {
Handle<String> key = Nan::New<String>(required.at(i).c_str()).ToLocalChecked();
if (!subj->Has(key))
return -1;
}
for (uint32_t i = 0; i < len; i++) {
Handle<Value> property = properties->Get(i);
Handle<String> property_s = property->ToString();
if (*property_s == NULL)
continue;
String::Utf8Value temp(property);
std::string propertyName = std::string(*temp);
const FieldDescriptor *field = d->FindFieldByName(propertyName);
if (field == NULL) continue;
Handle<Value> val = subj->Get(property);
if (field->is_repeated()) {
if (!val->IsArray())
continue;
Handle<Array> array = val.As<Array>();
int len = array->Length();
for (int i = 0; i < len; i++)
SerializeField(message, r, field, array->Get(i));
} else {
SerializeField(message, r, field, val);
}
}
return 0;
}
QByteArray TiObject::getByteArrayFromValue(Handle<Value> value)
{
if (value->IsArray()) {
Handle<Array> array = Handle<Array>::Cast(value);
int length = array->Length();
QByteArray result = QByteArray(length, 0);
char *data = result.data();
for (int index = 0; index < length; ++index) {
data[index] = Handle<Number>::Cast(array->Get(index))->Value();
}
return result;
}
return QByteArray();
}
static vector<string> get_paths(Handle<Function> require) {
HandleScope hs;
Handle<Object> paths = Handle<Object>::Cast(require->Get(String::New("paths")));
if(!paths->IsArray()) return vector<string>();
vector<string> res;
unsigned int length = paths->Get(String::New("length"))->Uint32Value();
cerr << "paths.length = " << length << endl;
for(unsigned int i=0; i<length ; ++i) {
String::Utf8Value v(paths->Get(i));
cerr << "found " << *v << " in paths[" << i << "]\n";
res.push_back(string(*v));
}
return res;
}
Susi::Util::Any Susi::JS::Engine::convertFromJS(Handle<Value> jsVal){
if(jsVal->IsArray()){
Susi::Util::Any::Array result;
auto obj = jsVal->ToObject();
const Local<Array> props = obj->GetPropertyNames();
const uint32_t length = props->Length();
for (uint32_t i=0 ; i<length ; ++i){
const Local<Value> key = props->Get(i);
const Local<Value> value = obj->Get(key);
result.push_back(Susi::JS::Engine::convertFromJS(value));
}
return result;
}
if(jsVal->IsObject()){
Susi::Util::Any result = Susi::Util::Any::Object{};
auto obj = jsVal->ToObject();
const Local<Array> props = obj->GetPropertyNames();
const uint32_t length = props->Length();
for (uint32_t i=0 ; i<length ; ++i){
const Local<Value> key = props->Get(i);
const Local<Value> value = obj->Get(key);
String::Utf8Value keyStr(key);
result[std::string(*keyStr)] = Susi::JS::Engine::convertFromJS(value);
}
return result;
}
if(jsVal->IsString()){
String::Utf8Value val(jsVal);
Susi::Util::Any result{std::string(*val)};
return result;
}
if(jsVal->IsNumber()){
Susi::Util::Any result{jsVal->ToNumber()->Value()};
return result;
}
if(jsVal->IsBoolean()){
Susi::Util::Any result{jsVal->ToBoolean()->Value()};
return result;
}
if(jsVal->IsNativeError()){
String::Utf8Value val(jsVal);
Susi::Util::Any result{std::string(*val)};
return result;
}
if(jsVal->IsUndefined()){
Susi::Util::Any result;
return result;
}
return Susi::Util::Any{"type not known"};
}
// Returns number of bytes written.
ssize_t DecodeWrite(char *buf,
size_t buflen,
Handle<Value> val,
enum encoding encoding) {
HandleScope scope;
// XXX
// A lot of improvement can be made here. See:
// http://code.google.com/p/v8/issues/detail?id=270
// http://groups.google.com/group/v8-dev/browse_thread/thread/dba28a81d9215291/ece2b50a3b4022c
// http://groups.google.com/group/v8-users/browse_thread/thread/1f83b0ba1f0a611
if (val->IsArray()) {
fprintf(stderr, "'raw' encoding (array of integers) has been removed. "
"Use 'binary'.\n");
assert(0);
return -1;
}
Local<String> str = val->ToString();
if (encoding == UTF8) {
str->WriteUtf8(buf, buflen, NULL, String::HINT_MANY_WRITES_EXPECTED);
return buflen;
}
if (encoding == ASCII) {
str->WriteAscii(buf, 0, buflen, String::HINT_MANY_WRITES_EXPECTED);
return buflen;
}
// THIS IS AWFUL!!! FIXME
assert(encoding == BINARY);
uint16_t * twobytebuf = new uint16_t[buflen];
str->Write(twobytebuf, 0, buflen, String::HINT_MANY_WRITES_EXPECTED);
for (size_t i = 0; i < buflen; i++) {
unsigned char *b = reinterpret_cast<unsigned char*>(&twobytebuf[i]);
buf[i] = b[0];
}
delete [] twobytebuf;
return buflen;
}
void NullTerminatedList (const Wrapper* wrapper, Handle<Value> value, vector<void*>& natives) {
if (!value->IsArray()) {
natives.push_back(NULL);
return;
}
Handle<Array> array = Handle<Array>::Cast<Value>(value);
const size_t size = array->Length() + 1;
intptr_t *nativeArray = (intptr_t*) malloc(sizeof(intptr_t) * size);
for (size_t i = 0; i < size - 1; ++i) {
nativeArray[i] = array->Get(i)->IntegerValue();
}
nativeArray[size - 1] = 0;
natives.push_back(nativeArray);
}
void
Session::formOptions(std::string* str, Handle<Value> value)
{
// Use the HandleScope of the calling function for speed.
if (value->IsUndefined() || value->IsNull())
return;
assert(value->IsObject());
std::stringstream ss;
if (value->IsArray()) {
// Format each array value into the options string "V[&V]"
Local<Object> object = value->ToObject();
for (std::size_t i = 0; i < Array::Cast(*object)->Length(); ++i) {
Local<String> key = object->Get(i)->ToString();
String::Utf8Value valv(key);
if (valv.length()) {
if (i > 0)
ss << "&";
ss << *valv;
}
}
} else {
// Format each KV pair into the options string "K=V[&K=V]"
Local<Object> object = value->ToObject();
Local<Array> keys = object->GetPropertyNames();
for (std::size_t i = 0; i < keys->Length(); ++i) {
Local<String> key = keys->Get(i)->ToString();
String::Utf8Value keyv(key);
if (keyv.length()) {
if (i > 0)
ss << "&";
ss << *keyv << "=";
}
Local<String> val = object->Get(key)->ToString();
String::Utf8Value valv(val);
if (valv.length())
ss << *valv;
}
}
*str = ss.str();
}
Handle<Array> GeoJSONReader::getGeomsArray(Handle<Object> geojson) {
Isolate* isolate = Isolate::GetCurrent();
Handle<String> geomsKey = String::NewFromUtf8(isolate, "geometries");
if (!geojson->HasOwnProperty(geomsKey))
throw "Property \"geometries\" is missing";
Handle<Value> geoms = geojson->Get(geomsKey);
if (
!geoms->IsArray()
)
throw "Property \"geometries\" must be an instance of Array";
return Handle<Array>::Cast(geoms);
}
Handle<Value> GeoJSONReader::getCoordsArray(Handle<Object> geojson) {
Isolate* isolate = Isolate::GetCurrent();
Handle<String> coordsKey = String::NewFromUtf8(isolate, "coordinates");
if (!geojson->HasOwnProperty(coordsKey))
throw "Property \"coordinates\" is missing";
Handle<Value> coords = geojson->Get(coordsKey);
if (
!coords->IsArray()
&& !coords->IsNull()
&& !coords->IsUndefined()
)
throw "Property \"coordinates\" must be an instance of Array or null";
return coords;
}
void Many (const Wrapper* wrapper, Handle<Value> value, vector<void*>& natives) {
if (!value->IsArray()) {
natives.push_back(NULL);
// set size = 0;
PushBackWrapped<size_t>(natives, 0);
return;
}
Handle<Array> array = Handle<Array>::Cast<Value>(value);
const size_t size = array->Length();
T *nativeArray = (T*) malloc(sizeof(T) * size);
for (size_t i = 0; i < size; ++i) {
nativeArray[i] = Get<T>(array->Get(i));
}
natives.push_back(nativeArray);
PushBackWrapped(natives, size);
}
int NativeWindowObject::setOrientationModes(TiObject* obj) {
Handle<Value> val = obj->getValue();
if (!val->IsArray()) {
return NATIVE_ERROR_INVALID_ARG;
}
// Convert the array of modes into a bitwise flags value.
Handle<Array> modes = Handle<Array>::Cast(val);
uint32_t modeCount = modes->Length();
int flags = 0;
for (uint32_t i = 0; i < modeCount; i++) {
int32_t flag = modes->Get(i)->Int32Value();
flags |= Orientation::toSceneMode(static_cast<Orientation::Type>(flag));
}
scene_.setOrientationModes(flags);
return NATIVE_ERROR_OK;
}
geos::geom::Coordinate GeoJSONReader::getCoordinate(Handle<Value> value, bool acceptArrayOnly) {
bool isArray = value->IsArray();
if (acceptArrayOnly) {
if (!isArray)
throw "A coordinate must be an instance of Array";
}
else {
if (
!isArray
&& !value->IsNull()
&& !value->IsUndefined()
)
throw "A coordinate must be an instance of Array or null";
if (!isArray)
return geos::geom::Coordinate::getNull();
}
Handle<Array> array = Handle<Array>::Cast(value);
uint32_t length = array->Length();
if (length < 2)
throw "A coordinate's length must be >= 2";
geos::geom::Coordinate coord;
coord.x = valueToDouble(array->Get(0));
coord.y = valueToDouble(array->Get(1));
if (length > 2) {
coord.z = valueToDouble(array->Get(2));
}
precisionModel->makePrecise(&coord);
return coord;
}
static void setUpstreams(getdns_context* context, Handle<Value> opt) {
if (opt->IsArray()) {
getdns_list* upstreams = getdns_list_create();
Handle<Array> values = Handle<Array>::Cast(opt);
for (uint32_t i = 0; i < values->Length(); ++i) {
Local<Value> ipOrTuple = values->Get(i);
getdns_dict* ipDict = NULL;
if (ipOrTuple->IsArray()) {
// two tuple - first is IP, 2nd is port
Handle<Array> tuple = Handle<Array>::Cast(ipOrTuple);
if (tuple->Length() > 0) {
String::AsciiValue asciiStr(tuple->Get(0)->ToString());
ipDict = getdns_util_create_ip(*asciiStr);
if (ipDict && tuple->Length() > 1 &&
tuple->Get(1)->IsNumber()) {
// port
uint32_t port = tuple->Get(1)->Uint32Value();
getdns_dict_set_int(ipDict, "port", port);
}
}
} else {
String::AsciiValue asciiStr(ipOrTuple->ToString());
ipDict = getdns_util_create_ip(*asciiStr);
}
if (ipDict) {
size_t len = 0;
getdns_list_get_length(upstreams, &len);
getdns_list_set_dict(upstreams, len, ipDict);
getdns_dict_destroy(ipDict);
} else {
Local<String> msg = String::Concat(String::New("Upstream value is invalid: "), ipOrTuple->ToString());
ThrowException(Exception::TypeError(msg));
}
}
getdns_return_t r = getdns_context_set_upstream_recursive_servers(context, upstreams);
getdns_list_destroy(upstreams);
if (r != GETDNS_RETURN_GOOD) {
ThrowException(Exception::TypeError(String::New("Failed to set upstreams.")));
}
}
}
void
Session::formFields(std::string* str, Handle<Object> object)
{
// Use the HandleScope of the calling function for speed.
assert(object->IsArray());
std::stringstream ss;
// Format each array value into the options string "V[&V]"
for (std::size_t i = 0; i < Array::Cast(*object)->Length(); ++i) {
Local<String> s = object->Get(i)->ToString();
String::Utf8Value v(s);
if (v.length()) {
if (i > 0)
ss << ",";
ss << *v;
}
}
*str = ss.str();
}
VALUE rr_v82rb(Handle<Value> value) {
if (value.IsEmpty()) {
return rr_v8_value_empty();
}
if (value->IsUndefined() || value->IsNull()) {
return Qnil;
}
if (value->IsExternal()) {
return rr_reflect_v8_external(value);
}
if (value->IsUint32()) {
return UINT2NUM(value->Uint32Value());
}
if (value->IsInt32()) {
return INT2FIX(value->Int32Value());
}
if (value->IsBoolean()) {
return value->BooleanValue() ? Qtrue : Qfalse;
}
if (value->IsNumber()) {
return rb_float_new(value->NumberValue());
}
if (value->IsString()) {
return rr_reflect_v8_string(value);
}
if (value->IsFunction()) {
return rr_reflect_v8_function(value);
}
if (value->IsArray()) {
return rr_reflect_v8_array(value);
}
if (value->IsDate()) {
return rr_reflect_v8_date(value);
}
if (value->IsObject()) {
return rr_reflect_v8_object(value);
}
return rr_wrap_v8_value(value);
}
IOBasicTypes::LongBufferSizeType ObjectByteReader::Read(IOBasicTypes::Byte* inBuffer,IOBasicTypes::LongBufferSizeType inBufferSize)
{
HandleScope handle;
Handle<Value> value = mObject->Get(String::New("read"));
if(value->IsUndefined())
return 0;
Handle<Function> func = Handle<Function>::Cast(value);
Handle<Value> args[1];
args[0] = Number::New(inBufferSize);
Handle<Value> result = func->Call(mObject, 1, args);
if(!result->IsArray())
return 0;
IOBasicTypes::LongBufferSizeType bufferLength = result->ToObject()->Get(v8::String::New("length"))->ToObject()->Uint32Value();
for(IOBasicTypes::LongBufferSizeType i=0;i < bufferLength;++i)
inBuffer[i] = (IOBasicTypes::Byte)(value->ToObject()->Get((uint32_t)i)->ToNumber()->Uint32Value());
return bufferLength;
}
void SerializeField(google::protobuf::Message *message, const Reflection *r, const FieldDescriptor *field, Handle<Value> val) {
const EnumValueDescriptor *enumValue = NULL;
bool repeated = field->is_repeated();
if (*val != NULL) {
if (field->is_optional() && (val->IsNull() || val->IsUndefined()))
return;
switch (field->cpp_type()) {
case FieldDescriptor::CPPTYPE_INT32: {
if (repeated)
r->AddInt32(message, field, val->Int32Value());
else
r->SetInt32(message, field, val->Int32Value());
break;
}
case FieldDescriptor::CPPTYPE_INT64:
if (repeated)
if (preserve_int64 && val->IsArray()) {
Local<Object> n64_array = val->ToObject();
uint64 n64;
uint32 hi = n64_array->Get(0)->Uint32Value(), lo = n64_array->Get(1)->Uint32Value();
n64 = ((uint64)hi << 32) + (uint64)lo;
r->AddInt64(message, field, n64);
} else
r->AddInt64(message, field, val->NumberValue());
else
if (preserve_int64 && val->IsArray()) {
Local<Object> n64_array = val->ToObject();
uint64 n64;
uint32 hi = n64_array->Get(0)->Uint32Value(), lo = n64_array->Get(1)->Uint32Value();
n64 = ((uint64)hi << 32) + (uint64)lo;
r->SetInt64(message, field, n64);
} else
r->SetInt64(message, field, val->NumberValue());
break;
case FieldDescriptor::CPPTYPE_UINT32:
if (repeated)
r->AddUInt32(message, field, val->Uint32Value());
else
r->SetUInt32(message, field, val->Uint32Value());
break;
case FieldDescriptor::CPPTYPE_UINT64:
if (repeated)
if (preserve_int64 && val->IsArray()) {
Local<Object> n64_array = val->ToObject();
uint64 n64;
uint32 hi = n64_array->Get(0)->Uint32Value(), lo = n64_array->Get(1)->Uint32Value();
n64 = ((uint64)hi << 32) + (uint64)lo;
r->AddUInt64(message, field, n64);
} else
r->AddUInt64(message, field, val->NumberValue());
else
if (preserve_int64 && val->IsArray()) {
Local<Object> n64_array = val->ToObject();
uint64 n64;
uint32 hi = n64_array->Get(0)->Uint32Value(), lo = n64_array->Get(1)->Uint32Value();
n64 = ((uint64)hi << 32) + (uint64)lo;
r->SetUInt64(message, field, n64);
} else
r->SetUInt64(message, field, val->NumberValue());
break;
case FieldDescriptor::CPPTYPE_DOUBLE:
if (repeated)
r->AddDouble(message, field, val->NumberValue());
else
r->SetDouble(message, field, val->NumberValue());
break;
case FieldDescriptor::CPPTYPE_FLOAT:
if (repeated)
r->AddFloat(message, field, val->NumberValue());
else
r->SetFloat(message, field, val->NumberValue());
break;
case FieldDescriptor::CPPTYPE_BOOL:
if (repeated)
r->AddBool(message, field, val->BooleanValue());
else
r->SetBool(message, field, val->BooleanValue());
break;
case FieldDescriptor::CPPTYPE_ENUM:
// TODO: possible memory leak?
enumValue =
val->IsNumber() ?
field->enum_type()->FindValueByNumber(val->Int32Value()) :
field->enum_type()->FindValueByName(*NanAsciiString(val));
if (enumValue != NULL) {
if (repeated)
r->AddEnum(message, field, enumValue);
else
r->SetEnum(message, field, enumValue);
}
break;
case FieldDescriptor::CPPTYPE_MESSAGE:
if (val->IsObject()) {
if (repeated)
SerializePart(r->AddMessage(message, field), val.As<Object>());
else
SerializePart(r->MutableMessage(message, field), val.As<Object>());
}
break;
case FieldDescriptor::CPPTYPE_STRING:
if (Buffer::HasInstance(val)) {
Local<Object> buf = val->ToObject();
if (repeated)
r->AddString(message, field, std::string(Buffer::Data(buf), Buffer::Length(buf)));
else
r->SetString(message, field, std::string(Buffer::Data(buf), Buffer::Length(buf)));
break;
}
if (val->IsObject()) {
Local<Object> val2 = val->ToObject();
Local<Value> converter = val2->Get(NanNew<String>("toProtobuf"));
if (converter->IsFunction()) {
Local<Function> toProtobuf = Local<Function>::Cast(converter);
Local<Value> ret = toProtobuf->Call(val2,0,NULL);
if (Buffer::HasInstance(ret)) {
Local<Object> buf = ret->ToObject();
if (repeated)
r->AddString(message, field, std::string(Buffer::Data(buf), Buffer::Length(buf)));
else
r->SetString(message, field, std::string(Buffer::Data(buf), Buffer::Length(buf)));
break;
}
}
}
String::Utf8Value temp(val->ToString());
std::string value = std::string(*temp);
if (repeated)
r->AddString(message, field, value);
else
r->SetString(message, field, value);
break;
}
}
}
extern "C" bool isArray(Handle<Value> arr) {
return arr->IsArray();
}
int main(int argc, const char * argv[])
{
using namespace v8::bridge;
/* Create a scripting engine */
ScriptingEngine *engine = new ScriptingEngine();
/* Execute simple script which contains some variable declarations in the global scope */
std::stringstream io;
io << "var intVar = 10;" << std::endl;
io << "var numberVar = 10.5;" << std::endl;
io << "var stringVar = 'Hello, World!';" << std::endl;
io << "var boolVar = false;" << std::endl;
io << "var nullVar = null;" << std::endl;
io << "var undefinedVar = undefined;" << std::endl;
io << "var arrayVar = [1, 2, 3];" << std::endl;
io << "var objectVar = { 'foo': 1, 'bar': 2 };" << std::endl;
io << "var callbackVar = function() { };" << std::endl;
engine->execute(io.str());
/*
* Access each variable. Since the variables was defined
* in the global scope, we can easly access them using
* ScriptingEngine::getFromGlobalScope and ScriptingEngine::getValueFromGlobalScope<TType>.
*
* Note that you should may use getFromGlobalScope<TType> only when you're sure that the given variable
* is in your desired type, otherwsie an runtime_error will raise.
*/
/* Lets start by retriving variables using the Conversion API: */
// Int:
int intVar = engine->getValueFromGlobalScope<int>("intVar");
std::cout << "intVal: " << intVar << std::endl;
// Number (double/float):
double numberVar = engine->getValueFromGlobalScope<double>("numberVar");
std::cout << "numberVar: " << numberVar << std::endl;
// String:
std::string stringVar = engine->getValueFromGlobalScope<std::string>("stringVar");
std::cout << "stringVar: " << stringVar << std::endl;
// Bool:
bool boolVar = engine->getValueFromGlobalScope<bool>("boolVar");
std::cout << "boolVar: " << boolVar << std::endl;
/* To retrive null and undefined, we must retrive the Handle<Value> */
// Note: since we're going to interact with raw handles,
// and we're in main, we must create a new handle scope.
//
// Note 2: We don't need to open a scope when interacting with raw values
// in functions and methods that was exposed to JS since v8bridge
// opens one for us before triggering our function.
HandleScope handle_scope(engine->getActiveIsolationScope());
// Null:
Handle<Value> nullVar = engine->getFromGlobalScope("nullVar");
std::cout << "nullVar (is null?): " << (nullVar->IsNull()) << std::endl;
// Undefined:
Handle<Value> undefinedVar = engine->getFromGlobalScope("undefinedVar");
std::cout << "undefinedVar (is undefined?): " << (undefinedVar->IsUndefined()) << std::endl;
/*
* Array:
* There're two ways to interact with arrays:
* 1. JS arrays are been converted automaticly to list. So we can use the
* conversion API to convert the Handle<Array> to a native list type. The con
* of this action is that the array must contain a specific type (e.g. strings only, ints only).
* 2. We can receive the array as raw Handle<Array>. To make things simpler
* we can avoid the type-verification by requesting from the Conversion API to get Handle<Array>.
* this will make sure that we're dealing with an array (and not with string or undefined variable, for instance).
*/
#if 0 // std::list<T> approch:
std::list<int> arrayVar = engine->getValueFromGlobalScope<std::list<int> >("arrayVar");
std::cout << "arrayVar (size: " << arrayVar.size() << "): [";
for (int i = 0; i < arrayVar.size(); i++)
{
if (i < arrayVar.size() - 1)
std::cout << i << ", ";
else
std::cout << i;
}
std::cout << "]" << std::endl;
#elif 1 // Handle<Array>
Handle<Array> arrayVar = engine->getHandleFromGlobalScope<Handle<Array> >("arrayVar");
String::Utf8Value arrayVarStringRep(arrayVar); // We're using v8::String::Utf8Value to evaluate the array contents into a string
std::cout << "arrayVar (size: " << arrayVar->Length() << "):"
<< "[" << *arrayVarStringRep << "]" << std::endl;
#else // Handle<Value> raw parsing
Handle<Value> arrayVar = engine->getFromGlobalScope("arrayVar");
assert(arrayVar->IsArray());
String::Utf8Value arrayVarStringRep(arrayVar);
std::cout << "arrayVar (size: " << Handle<Array>::Cast(arrayVar)->Length() << "):"
<< "[" << *arrayVarStringRep << "]" << std::endl;
#endif
/* Free */
delete engine;
/* Done. */
return 0;
}
jsvalue JsEngine::AnyFromV8(Handle<Value> value, Handle<Object> thisArg)
{
jsvalue v;
// Initialize to a generic error.
v.type = JSVALUE_TYPE_UNKNOWN_ERROR;
v.length = 0;
v.value.str = 0;
if (value->IsNull() || value->IsUndefined()) {
v.type = JSVALUE_TYPE_NULL;
}
else if (value->IsBoolean()) {
v.type = JSVALUE_TYPE_BOOLEAN;
v.value.i32 = value->BooleanValue() ? 1 : 0;
}
else if (value->IsInt32()) {
v.type = JSVALUE_TYPE_INTEGER;
v.value.i32 = value->Int32Value();
}
else if (value->IsUint32()) {
v.type = JSVALUE_TYPE_INDEX;
v.value.i64 = value->Uint32Value();
}
else if (value->IsNumber()) {
v.type = JSVALUE_TYPE_NUMBER;
v.value.num = value->NumberValue();
}
else if (value->IsString()) {
v = StringFromV8(value);
}
else if (value->IsDate()) {
v.type = JSVALUE_TYPE_DATE;
v.value.num = value->NumberValue();
}
else if (value->IsArray()) {
Handle<Array> object = Handle<Array>::Cast(value->ToObject());
v.length = object->Length();
jsvalue* array = new jsvalue[v.length];
if (array != NULL) {
for(int i = 0; i < v.length; i++) {
array[i] = AnyFromV8(object->Get(i));
}
v.type = JSVALUE_TYPE_ARRAY;
v.value.arr = array;
}
}
else if (value->IsFunction()) {
Handle<Function> function = Handle<Function>::Cast(value);
jsvalue* array = new jsvalue[2];
if (array != NULL) {
array[0].value.ptr = new Persistent<Object>(Persistent<Function>::New(function));
array[0].length = 0;
array[0].type = JSVALUE_TYPE_WRAPPED;
if (!thisArg.IsEmpty()) {
array[1].value.ptr = new Persistent<Object>(Persistent<Object>::New(thisArg));
array[1].length = 0;
array[1].type = JSVALUE_TYPE_WRAPPED;
} else {
array[1].value.ptr = NULL;
array[1].length = 0;
array[1].type = JSVALUE_TYPE_NULL;
}
v.type = JSVALUE_TYPE_FUNCTION;
v.value.arr = array;
}
}
else if (value->IsObject()) {
Handle<Object> obj = Handle<Object>::Cast(value);
if (obj->InternalFieldCount() == 1)
v = ManagedFromV8(obj);
else
v = WrappedFromV8(obj);
}
return v;
}
