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/* Copyright (C) 2017 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_SCRIPTCONVERSIONS
#define INCLUDED_SCRIPTCONVERSIONS
#include "ScriptInterface.h"
#include "scriptinterface/ScriptExtraHeaders.h" // for typed arrays
#include <limits>
template<typename T> static void ToJSVal_vector(JSContext* cx, JS::MutableHandleValue ret, const std::vector<T>& val)
{
JSAutoRequest rq(cx);
JS::RootedObject obj(cx, JS_NewArrayObject(cx, 0));
if (!obj)
{
ret.setUndefined();
return;
}
ENSURE(val.size() <= std::numeric_limits<u32>::max());
for (u32 i = 0; i < val.size(); ++i)
{
JS::RootedValue el(cx);
ScriptInterface::ToJSVal<T>(cx, &el, val[i]);
JS_SetElement(cx, obj, i, el);
}
ret.setObject(*obj);
}
#define FAIL(msg) STMT(JS_ReportError(cx, msg); return false)
template<typename T> static bool FromJSVal_vector(JSContext* cx, JS::HandleValue v, std::vector<T>& out)
{
JSAutoRequest rq(cx);
JS::RootedObject obj(cx);
if (!v.isObject())
FAIL("Argument must be an array");
obj = &v.toObject();
if (!(JS_IsArrayObject(cx, obj) || JS_IsTypedArrayObject(obj)))
FAIL("Argument must be an array");
u32 length;
if (!JS_GetArrayLength(cx, obj, &length))
FAIL("Failed to get array length");
out.reserve(length);
for (u32 i = 0; i < length; ++i)
{
JS::RootedValue el(cx);
if (!JS_GetElement(cx, obj, i, &el))
FAIL("Failed to read array element");
T el2;
if (!ScriptInterface::FromJSVal<T>(cx, el, el2))
return false;
out.push_back(el2);
}
return true;
}
#undef FAIL
#define JSVAL_VECTOR(T) \
template<> void ScriptInterface::ToJSVal<std::vector<T> >(JSContext* cx, JS::MutableHandleValue ret, const std::vector<T>& val) \
{ \
ToJSVal_vector(cx, ret, val); \
} \
template<> bool ScriptInterface::FromJSVal<std::vector<T> >(JSContext* cx, JS::HandleValue v, std::vector<T>& out) \
{ \
return FromJSVal_vector(cx, v, out); \
}
template<typename T> bool ScriptInterface::FromJSProperty(JSContext* cx, const JS::HandleValue val, const char* name, T& ret)
{
if (!val.isObject())
return false;
JSAutoRequest rq(cx);
JS::RootedObject obj(cx, &val.toObject());
bool hasProperty;
if (!JS_HasProperty(cx, obj, name, &hasProperty) || !hasProperty)
return false;
JS::RootedValue value(cx);
if (!JS_GetProperty(cx, obj, name, &value))
return false;
return FromJSVal(cx, value, ret);
}
#endif //INCLUDED_SCRIPTCONVERSIONS
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