#define JS_VALUE_TO_SQLITE(to, value, isolate, ...)                            \
	if (value->IsNumber()) {                                                   \
		return sqlite3_##to##_double(__VA_ARGS__,                              \
			v8::Local<v8::Number>::Cast(value)->Value()                        \
		);                                                                     \
	} else if (value->IsString()) {                                            \
		v8::String::Utf8Value utf8(                                            \
			EXTRACT_STRING(isolate, v8::Local<v8::String>::Cast(value)));      \
		return sqlite3_##to##_text(__VA_ARGS__,                                \
			*utf8,                                                             \
			utf8.length(),                                                     \
			SQLITE_TRANSIENT                                                   \
		);                                                                     \
	} else if (value->IsNull() || value->IsUndefined()) {                      \
		return sqlite3_##to##_null(__VA_ARGS__);                               \
	} else if (node::Buffer::HasInstance(value)) {                             \
		return sqlite3_##to##_blob(__VA_ARGS__,                                \
			node::Buffer::Data(value),                                         \
			node::Buffer::Length(value),                                       \
			SQLITE_TRANSIENT                                                   \
		);                                                                     \
	} else if (Integer::HasInstance(isolate, value)) {                         \
		return sqlite3_##to##_int64(__VA_ARGS__,                               \
			Integer::GetValue(v8::Local<v8::Object>::Cast(value))              \
		);                                                                     \
	}

#define SQLITE_VALUE_TO_JS(from, isolate, safe_ints, ...)                      \
	switch (sqlite3_##from##_type(__VA_ARGS__)) {                              \
	case SQLITE_INTEGER:                                                       \
		return Integer::New(                                                   \
			isolate, sqlite3_##from##_int64(__VA_ARGS__), safe_ints            \
		);                                                                     \
	case SQLITE_FLOAT:                                                         \
		return v8::Number::New(isolate, sqlite3_##from##_double(__VA_ARGS__)); \
	case SQLITE_TEXT:                                                          \
		return StringFromUtf8(                                                 \
			isolate,                                                           \
			reinterpret_cast<const char*>(sqlite3_##from##_text(__VA_ARGS__)), \
			sqlite3_##from##_bytes(__VA_ARGS__)                                \
		);                                                                     \
	case SQLITE_BLOB:                                                          \
		return node::Buffer::Copy(                                             \
			isolate,                                                           \
			static_cast<const char*>(sqlite3_##from##_blob(__VA_ARGS__)),      \
			sqlite3_##from##_bytes(__VA_ARGS__)                                \
		).ToLocalChecked();                                                    \
	default:                                                                   \
		assert(sqlite3_##from##_type(__VA_ARGS__) == SQLITE_NULL);             \
		return v8::Null(isolate);                                              \
	}                                                                          \
	assert(false);

namespace Data {

	static const char FLAT = 0;
	static const char PLUCK = 1;
	static const char EXPAND = 2;
	static const char RAW = 3;

	v8::Local<v8::Value> GetValueJS(v8::Isolate* isolate, sqlite3_stmt* handle, int column, bool safe_ints) {
		SQLITE_VALUE_TO_JS(column, isolate, safe_ints, handle, column);
	}

	v8::Local<v8::Value> GetValueJS(v8::Isolate* isolate, sqlite3_value* value, bool safe_ints) {
		SQLITE_VALUE_TO_JS(value, isolate, safe_ints, value);
	}

	v8::Local<v8::Value> GetFlatRowJS(v8::Isolate* isolate, v8::Local<v8::Context> ctx, sqlite3_stmt* handle, bool safe_ints) {
		v8::Local<v8::Object> row = v8::Object::New(isolate);
		int column_count = sqlite3_column_count(handle);
		for (int i=0; i<column_count; ++i) {
			row->Set(ctx,
				InternalizedFromUtf8(isolate, sqlite3_column_name(handle, i), -1),
				Data::GetValueJS(isolate, handle, i, safe_ints)).FromJust();
		}
		return row;
	}

	v8::Local<v8::Value> GetExpandedRowJS(v8::Isolate* isolate, v8::Local<v8::Context> ctx, sqlite3_stmt* handle, bool safe_ints) {
		v8::Local<v8::Object> row = v8::Object::New(isolate);
		int column_count = sqlite3_column_count(handle);
		for (int i=0; i<column_count; ++i) {
			const char* table_raw = sqlite3_column_table_name(handle, i);
			v8::Local<v8::String> table = InternalizedFromUtf8(isolate, table_raw == NULL ? "$" : table_raw, -1);
			v8::Local<v8::String> column = InternalizedFromUtf8(isolate, sqlite3_column_name(handle, i), -1);
			v8::Local<v8::Value> value = Data::GetValueJS(isolate, handle, i, safe_ints);
			if (row->HasOwnProperty(ctx, table).FromJust()) {
				v8::Local<v8::Object>::Cast(row->Get(ctx, table).ToLocalChecked())->Set(ctx, column, value).FromJust();
			} else {
				v8::Local<v8::Object> nested = v8::Object::New(isolate);
				row->Set(ctx, table, nested).FromJust();
				nested->Set(ctx, column, value).FromJust();
			}
		}
		return row;
	}

	v8::Local<v8::Value> GetRawRowJS(v8::Isolate* isolate, v8::Local<v8::Context> ctx, sqlite3_stmt* handle, bool safe_ints) {
		v8::Local<v8::Array> row = v8::Array::New(isolate);
		int column_count = sqlite3_column_count(handle);
		for (int i=0; i<column_count; ++i) {
			row->Set(ctx, i, Data::GetValueJS(isolate, handle, i, safe_ints)).FromJust();
		}
		return row;
	}

	v8::Local<v8::Value> GetRowJS(v8::Isolate* isolate, v8::Local<v8::Context> ctx, sqlite3_stmt* handle, bool safe_ints, char mode) {
		if (mode == FLAT) return GetFlatRowJS(isolate, ctx, handle, safe_ints);
		if (mode == PLUCK) return GetValueJS(isolate, handle, 0, safe_ints);
		if (mode == EXPAND) return GetExpandedRowJS(isolate, ctx, handle, safe_ints);
		if (mode == RAW) return GetRawRowJS(isolate, ctx, handle, safe_ints);
		assert(false);
		return v8::Local<v8::Value>();
	}

	void GetArgumentsJS(v8::Isolate* isolate, v8::Local<v8::Value>* out, sqlite3_value** values, int argument_count, bool safe_ints) {
		assert(argument_count > 0);
		for (int i=0; i<argument_count; ++i) {
			out[i] = Data::GetValueJS(isolate, values[i], safe_ints);
		}
	}

	int BindValueFromJS(v8::Isolate* isolate, sqlite3_stmt* handle, int index, v8::Local<v8::Value> value) {
		JS_VALUE_TO_SQLITE(bind, value, isolate, handle, index);
		return -1;
	}

	void ResultValueFromJS(v8::Isolate* isolate, sqlite3_context* invocation, v8::Local<v8::Value> value, CustomFunction* function) {
		JS_VALUE_TO_SQLITE(result, value, isolate, invocation);
		function->ThrowResultValueError(invocation);
	}

}