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/*
Ousía
Copyright (C) 2014, 2015 Benjamin Paaßen, Andreas Stöckel
This program 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 3 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Exceptions.hpp"
#include "Logger.hpp"
#include "Property.hpp"
#include "VariantConverter.hpp"
namespace ousia {
/* Class PropertyType */
const PropertyType PropertyType::None;
/* Class GetterFunction */
void GetterFunction::validateArguments(Variant::arrayType &args) const
{
if (!args.empty()) {
throw PropertyException(
std::string("Getter function has no arguments, but got ") +
std::to_string(args.size()));
}
}
void GetterFunction::validateResult(Variant &res) const
{
ExceptionLogger logger;
VariantConverter::convert(res, propertyType->type, propertyType->innerType,
logger);
}
Variant GetterFunction::get(void *obj)
{
return call(Variant::arrayType{}, obj);
}
/* Class SetterFunction */
void SetterFunction::validateArguments(Variant::arrayType &args) const
{
// Make sure exactly one argument is given
if (args.size() != 1U) {
throw PropertyException(
std::string(
"Expected exactly one argument to be passed to the property "
"setter, but got ") +
std::to_string(args.size()));
}
// Convert the one argument to the requested type, throw an exception if
// this fails.
ExceptionLogger logger;
VariantConverter::convert(args[0], propertyType->type,
propertyType->innerType, logger);
}
void SetterFunction::set(const Variant &value, void *obj)
{
call(Variant::arrayType{value}, obj);
}
/* Class PropertyDescriptor */
PropertyDescriptor::PropertyDescriptor(const PropertyType &type,
std::unique_ptr<GetterFunction> getter,
std::unique_ptr<SetterFunction> setter)
: type(type), getter(std::move(getter)), setter(std::move(setter))
{
if (!this->getter->isValid()) {
throw PropertyException(
"Getter must be valid, writeonly properties are not "
"supported!");
}
// Assign the property type reference to the getter and setter
this->getter->propertyType = &this->type;
this->setter->propertyType = &this->type;
}
}
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