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// v8sharp is a community project available under the Microsoft Public License (Ms-PL)
// Code is provided as is and with no warrenty – Use at your own risk
// View the project and the latest code at http://v8sharp.codeplex.com/
#include "v8value.h"
#include "v8external.h"
#include "v8function.h"
#include "v8wrap.h"
using namespace System::Collections::Generic;
class V8External;
namespace v8sharp
{
Object^ V8Interop::FromV8(v8::Handle<v8::Value> value)
{
if (value->IsString())
{
return FromV8String(value);
}
else if (value->IsBoolean())
{
return FromV8Boolean(value);
}
else if (value->IsInt32())
{
return FromV8Int32(value);
}
else if (value->IsArray())
{
return FromV8Array(value);
}
else if (value->IsDate())
{
return FromV8Date(value);
}
else if (value->IsNumber())
{
return FromV8Double(value);
}
else if (value->IsFunction())
{
return FromV8Function(value);
}
else if (value->IsExternal())
{
return FromV8External(value);
}
else if (value->IsObject())
{
return FromV8Object(value);
}
else if (value->IsUndefined() || value->IsNull())
{
return nullptr;
}
return nullptr;
}
v8::Handle<v8::Value> V8Interop::ToV8(Object^ value)
{
static gcroot<Type^> GenericList = List<int>::typeid->GetGenericTypeDefinition();
if (value != nullptr)
{
Type^ type = value->GetType();
if (type == String::typeid)
{
return ToV8String(safe_cast<String^>(value));
}
else if (type == bool::typeid)
{
return ToV8Boolean(safe_cast<bool>(value));
}
else if (type == int::typeid)
{
return ToV8Int32(safe_cast<int>(value));
}
else if (type == double::typeid)
{
return ToV8Double(safe_cast<double>(value));
}
else if (type->IsArray)
{
return ToV8Array(safe_cast<Array^>(value));
}
else if (type == DateTime::typeid)
{
return ToV8Date(safe_cast<DateTime>(value));
}
else if (Delegate::typeid->IsAssignableFrom(type))
{
return ToV8Function(safe_cast<Delegate^>(value));
}
else if (type->IsGenericType && type->GetGenericTypeDefinition()->IsAssignableFrom(GenericList))
{
// an expensive method of making lists into arrays.
System::Reflection::MethodInfo^ toArray = type->GetMethod("ToArray");
System::Object^ result = toArray->Invoke(value, gcnew array<Object^>{});
return ToV8Array(safe_cast<Array^>(result));
}
else
{
return ToV8Wrap(value);
//return ToV8External(value);
}
}
return v8::Null();
}
String^ V8Interop::FromV8String(v8::Handle<v8::Value> value)
{
v8::String::AsciiValue ascii(value);
return gcnew String((const char*)*ascii);
}
v8::Handle<v8::Value> V8Interop::ToV8String(String^ value)
{
pin_ptr<const wchar_t> ptr = PtrToStringChars(value);
return v8::String::New((const uint16_t*)ptr);
}
bool V8Interop::FromV8Boolean(v8::Handle<v8::Value> value)
{
bool val = value->BooleanValue();
return val;
}
v8::Handle<v8::Value> V8Interop::ToV8Boolean(bool value)
{
return value ? v8::True() : v8::False();
}
int V8Interop::FromV8Int32(v8::Handle<v8::Value> value)
{
int val = value->Int32Value();
return val;
}
v8::Handle<v8::Value> V8Interop::ToV8Int32(int value)
{
return v8::Int32::New(value);
}
double V8Interop::FromV8Double(v8::Handle<v8::Value> value)
{
double val = value->NumberValue();
return val;
}
v8::Handle<v8::Value> V8Interop::ToV8Double(double value)
{
return v8::Number::New(value);
}
cli::array<Object^>^ V8Interop::FromV8Array(v8::Handle<v8::Value> value)
{
v8::Array* val = v8::Array::Cast(*value);
unsigned int len = val->Length();
cli::array<Object^>^ result = gcnew cli::array<Object^>(len);
for (unsigned int i = 0; i < len; i++)
{
v8::Handle<v8::Value> key = v8::Uint32::New(i);
result[i] = FromV8(val->Get(key));
}
return result;
}
v8::Handle<v8::Value> V8Interop::ToV8Array(Array^ value)
{
int len = value->Length;
v8::Handle<v8::Array> result = v8::Array::New();
for (int i = 0; i < len; i++)
{
v8::Handle<v8::Value> key = v8::Int32::New(i);
result->Set(key, ToV8(value->GetValue(i)));
}
return result;
}
DateTime V8Interop::FromV8Date(v8::Handle<v8::Value> value)
{
DateTime startDate = DateTime(1970, 1, 1);
double milliseconds = value->NumberValue();
TimeSpan ts = TimeSpan::FromMilliseconds(milliseconds);
return DateTime(ts.Ticks + startDate.Ticks).ToLocalTime();
}
v8::Handle<v8::Value> V8Interop::ToV8Date(DateTime value)
{
DateTime startDate = DateTime(1970, 1, 1);
TimeSpan ts = TimeSpan::FromTicks(value.Ticks - startDate.Ticks);
return v8::Date::New(ts.TotalMilliseconds);
}
Delegate^ V8Interop::FromV8Function(v8::Handle<v8::Value> value)
{
v8::Function* function = v8::Function::Cast(*value);
return V8FunctionHandler::CreateDelegate(function);
}
v8::Handle<v8::Value> V8Interop::ToV8Function(Delegate^ value)
{
return V8FunctionHandler::CreateFunction(value);
}
Object^ V8Interop::FromV8Object(v8::Handle<v8::Value> value)
{
v8::Handle<v8::Object> obj = value->ToObject();
if (obj->InternalFieldCount() > 0)
{
v8::Handle<v8::Value> internalField = obj->GetInternalField(0);
if (internalField->IsExternal())
{
return FromV8External(internalField);
}
if (V8ObjectWrapper::IsObjectWrapper(obj))
{
return V8ObjectWrapper::Unwrap(obj);
}
}
v8::Local<v8::Array> names = obj->GetPropertyNames();
unsigned int len = names->Length();
Dictionary<String^, Object^>^ results = gcnew Dictionary<String^, Object^>(len);
for (unsigned int i = 0; i < len; i++)
{
v8::Handle<v8::Value> nameKey = v8::Uint32::New(i);
v8::Handle<v8::Value> propName = names->Get(nameKey);
v8::Handle<v8::Value> propValue = obj->Get(propName);
String^ key = FromV8String(propName);
results[key] = FromV8(propValue);
}
return results;
}
v8::Handle<v8::Value> V8Interop::ToV8Object(Object^ value)
{
v8::Handle<v8::Object> obj = v8::Object::New();
if (value->GetType() == Dictionary<String^, Object^>::typeid)
{
Dictionary<String^, Object^>^ dict = safe_cast<Dictionary<String^, Object^>^>(value);
for each(KeyValuePair<String^, Object^> pair in dict)
{
v8::Handle<v8::Value> key = ToV8(pair.Key);
v8::Handle<v8::Value> val = ToV8(pair.Value);
obj->Set(key, val);
}
}
else
{
for each(System::Reflection::PropertyInfo^ prop in value->GetType()->GetProperties())
{
v8::Handle<v8::Value> key = ToV8(prop->Name);
v8::Handle<v8::Value> val = ToV8(prop->GetValue(value, nullptr));
obj->Set(key, val);
}
for each(System::Reflection::FieldInfo^ prop in value->GetType()->GetFields())
{
v8::Handle<v8::Value> key = ToV8(prop->Name);
v8::Handle<v8::Value> val = ToV8(prop->GetValue(value));
obj->Set(key, val);
}
}
return obj;
}
Object^ V8Interop::FromV8External(v8::Handle<v8::Value> value)
{
V8ExternalWrapper* FromV8per = V8ExternalWrapper::Unwrap(value);
return FromV8per->Object;
}
v8::Handle<v8::Value> V8Interop::ToV8External(Object^ value)
{
V8ExternalWrapper* wrapper = V8ExternalWrapper::Create(value);
return v8::External::Wrap((void*)wrapper);
}
v8::Handle<v8::Value> V8Interop::ToV8Wrap(Object^ value)
{
return V8ObjectWrapper::Wrap(value);
}
}