FREConverters.cpp

/*
 *  FREConverters.cpp
 *  This file is part of FRESteamWorks.
 *
 *  Created by Ventero <http://github.com/Ventero> on 2014-04-09.
 *  Copyright (c) 2012-2014 Level Up Labs, LLC. All rights reserved.
 */

/*
 * Functions to create FREObjects from native primitives.
 */

#include "FREConverters.h"

#include <sstream>

FREObject FREBool(bool value) {
	FREObject result;
	FRENewObjectFromBool(value, &result);
	return result;
}

FREObject FREInt(int32 value) {
	FREObject result;
	FRENewObjectFromInt32(value, &result);
	return result;
}

FREObject FREUint(uint32 value) {
	FREObject result;
	FRENewObjectFromUint32(value, &result);
	return result;
}

FREObject FREDouble(double value) {
	FREObject result;
	FRENewObjectFromDouble(value, &result);
	return result;
}

FREObject FREString(std::string value) {
	FREObject result;
	FRENewObjectFromUTF8(
		static_cast<uint32>(value.size()) + 1,
		(const uint8_t*)value.c_str(),
		&result);
	return result;
}

FREObject FREString(const char* value) {
	return FREString(std::string(value));
}

FREObject FREUint64(uint64 value) {
	std::stringstream stream;
	stream << value;
	return FREString(stream.str());
}

FREObject FREArray(uint32 length) {
	FREObject array;
	FRENewObject((const uint8_t*)"Array", 0, NULL, &array, NULL);
	FRESetArrayLength(array, length);

	return array;
}

/*
 * Functions to extract native primitives out of FREObjects.
 */

bool FREGetString(FREObject object, std::string& str) {
	uint32 len;
	const uint8_t* data;
	FREResult res = FREGetObjectAsUTF8(object, &len, &data);
	if (res != FRE_OK) return false;

	str = std::string((const char*)data, len);
	return true;
}

bool FREGetStringP(FREObject object, std::string* str) {
	std::string s;
	if (!FREGetString(object, s)) return false;

	*str = s;
	return true;
}

bool FREGetBool(FREObject object, bool* val) {
	uint32 int_val;

	FREResult ret = FREGetObjectAsBool(object, &int_val);
	*val = (int_val != 0);

	return ret == FRE_OK;
}

bool FREGetDouble(FREObject object, double* val) {
	return (FREGetObjectAsDouble(object, val) == FRE_OK);
}

bool FREGetInt32(FREObject object, int32* val) {
	return (FREGetObjectAsInt32(object, val) == FRE_OK);
}

bool FREGetUint32(FREObject object, uint32* val) {
	// really, Adobe ...?
#ifdef LINUX
	return (FREGetObjectAsUInt32(object, val) == FRE_OK);
#else
	return (FREGetObjectAsUint32(object, val) == FRE_OK);
#endif
}

bool FREGetUint64(FREObject object, uint64* val) {
	std::string str;
	if (!FREGetString(object, str)) return false;

	// Clang doesn't support std::stoull yet...
	std::istringstream ss(str);
	if (!(ss >> *val)) return false;

	return true;
}

// Extract a string array. For getArray<T>, see the header.
std::vector<std::string> extractStringArray(FREObject object) {
	return getArray<std::string>(object, FREGetStringP);
}