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/***************************************************************************
function.cpp - Functions for internal parser
-------------------
copyright : (C) 2004 Michal Rudolf <[email protected]>
***************************************************************************/
/***************************************************************************
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "function.h"
using namespace Parse;
Function::Function() : m_function(0), m_minArgs(0), m_maxArgs(0)
{
}
Function::Function(FunctionPointer fp, ValueType value, const TypeList& params, uint min, uint max)
: m_params(params)
{
m_function = fp;
m_returnValue = value;
m_minArgs = min <= m_params.count() ? min : m_params.count();
m_maxArgs = max >= m_params.count() ? max : m_params.count();
}
Function::Function(FunctionPointer fp, ValueType value, ValueType param1, uint min, uint max)
{
m_function = fp;
m_returnValue = value;
m_params.append(param1);
m_minArgs = min <= 1 ? min : 1;
m_maxArgs = max >= 1 ? max : 1;
}
Function::Function(FunctionPointer fp, ValueType value, ValueType param1, ValueType param2, uint min ,
uint max)
{
m_function = fp;
m_returnValue = value;
m_params.append(param1);
m_params.append(param2);
m_minArgs = min <= 2 ? min : 2;
m_maxArgs = max >= 2 ? max : 2;
}
Function::Function(FunctionPointer fp, ValueType value, ValueType param1, ValueType param2, ValueType param3,
uint min, uint max)
{
m_function = fp;
m_returnValue = value;
m_params.append(param1);
m_params.append(param2);
m_params.append(param3);
m_minArgs = min <= 3 ? min : 3;
m_maxArgs = max >= 3 ? max : 3;
}
Function::Function(FunctionPointer fp, ValueType value, ValueType param1, ValueType param2, ValueType param3,
ValueType param4, uint min, uint max)
{
m_function = fp;
m_returnValue = value;
m_params.append(param1);
m_params.append(param2);
m_params.append(param3);
m_params.append(param4);
m_minArgs = min <= 4 ? min : 4;
m_maxArgs = max >= 4 ? max : 4;
}
Function::Function(FunctionPointer fp, ValueType value, ValueType param1, ValueType param2, ValueType param3,
ValueType param4, ValueType param5, uint min, uint max)
{
m_function = fp;
m_returnValue = value;
m_params.append(param1);
m_params.append(param2);
m_params.append(param3);
m_params.append(param4);
m_params.append(param5);
m_minArgs = min <= 5 ? min : 5;
m_maxArgs = max >= 5 ? max : 5;
}
bool Function::isVoid() const
{
return returnValue() == ValueNone;
}
ValueType Function::returnValue() const
{
return m_returnValue;
}
ValueType Function::argType(uint i) const
{
if (i < m_params.count())
return m_params[i];
else if (i < m_maxArgs)
return m_params.last();
else
return ValueNone;
}
uint Function::minArgs() const
{
return m_minArgs;
}
uint Function::maxArgs() const
{
return m_maxArgs;
}
bool Function::isValid(const ParameterList& params) const
{
return params.count() >= minArgs() && params.count() <= maxArgs();
}
ParseNode Function::execute(Parser* P, const ParameterList& params) const
{
if (m_function)
return m_function(P, params);
else
return ParseNode();
}
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