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function.cpp
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100 lines (84 loc) · 3.22 KB
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/****************************************************************************
**
** Copyright (C) 2009-2010 TECHNOGERMA Systems France and/or its subsidiary(-ies).
** Contact: Technogerma Systems France Information ([email protected])
**
** This file is part of the CAMP library.
**
** CAMP is free software: you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** CAMP 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 Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with CAMP. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
#include <camp/function.hpp>
#include <camp/classvisitor.hpp>
#include <camp/errors.hpp>
namespace camp
{
//-------------------------------------------------------------------------------------------------
Function::~Function()
{
}
//-------------------------------------------------------------------------------------------------
const std::string& Function::name() const
{
return m_name;
}
//-------------------------------------------------------------------------------------------------
std::size_t Function::argCount() const
{
return m_argTypes.size();
}
//-------------------------------------------------------------------------------------------------
Type Function::returnType() const
{
return m_returnType;
}
//-------------------------------------------------------------------------------------------------
Type Function::argType(std::size_t index) const
{
// Make sure that the index is not out of range
if (index >= m_argTypes.size())
CAMP_ERROR(OutOfRange(index, m_argTypes.size()));
return m_argTypes[index];
}
//-------------------------------------------------------------------------------------------------
bool Function::callable(const UserObject& object) const
{
return m_callable.get(object);
}
//-------------------------------------------------------------------------------------------------
Value Function::call(const UserObject& object, const Args& args) const
{
// Check if the function is callable
if (!callable(object))
CAMP_ERROR(ForbiddenCall(name()));
// Check the number of arguments
if (args.count() < m_argTypes.size())
CAMP_ERROR(NotEnoughArguments(name(), args.count(), m_argTypes.size()));
// Execute the function
return execute(object, args);
}
//-------------------------------------------------------------------------------------------------
void Function::accept(ClassVisitor& visitor) const
{
visitor.visit(*this);
}
//-------------------------------------------------------------------------------------------------
Function::Function(const std::string& name, Type returnType, const std::vector<Type>& argTypes)
: m_name(name)
, m_returnType(returnType)
, m_argTypes(argTypes)
, m_callable(true)
{
}
} // namespace camp