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language/duchain

functiontype.cpp

/* This file is part of KDevelop
    Copyright 2006 Roberto Raggi <roberto@kdevelop.org>
    Copyright 2006-2008 Hamish Rodda <rodda@kde.org>
    Copyright 2007-2008 David Nolden <david.nolden.kdevelop@art-master.de>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include "functiontype.h"

#include "../indexedstring.h"
#include "../repositories/typerepository.h"
#include "typesystemdata.h"
#include "typeregister.h"
#include "typesystem.h"

namespace KDevelop
{

REGISTER_TYPE(FunctionType);

DEFINE_LIST_MEMBER_HASH(FunctionTypeData, m_arguments, IndexedType)

FunctionType::FunctionType(const FunctionType& rhs) : AbstractType(copyData<FunctionType>(*rhs.d_func())) {
}

FunctionType::FunctionType(FunctionTypeData& data) : AbstractType(data) {
}

AbstractType* FunctionType::clone() const {
  return new FunctionType(*this);
}

bool FunctionType::equals(const AbstractType* _rhs) const
{
  if( this == _rhs )
    return true;

  if (!AbstractType::equals(_rhs))
    return false;

  Q_ASSERT(fastCast<const FunctionType*>(_rhs));

  const FunctionType* rhs = static_cast<const FunctionType*>(_rhs);

  TYPE_D(FunctionType);
  if( d->m_argumentsSize() != rhs->d_func()->m_argumentsSize() )
    return false;

  if( (bool)rhs->d_func()->m_returnType != (bool)d->m_returnType )
    return false;

  if( d->m_returnType != rhs->d_func()->m_returnType )
    return false;

  for(unsigned int a = 0; a < d->m_argumentsSize(); ++a)
    if(d->m_arguments()[a] != rhs->d_func()->m_arguments()[a])
      return false;

  return true;
}

FunctionType::FunctionType()
  : AbstractType(createData<FunctionType>())
{
}

FunctionType::~FunctionType()
{
}


void FunctionType::addArgument(AbstractType::Ptr argument)
{
  d_func_dynamic()->m_argumentsList().append(argument->indexed());
}

void FunctionType::removeArgument(AbstractType::Ptr argument)
{
  TYPE_D_DYNAMIC(FunctionType);

  IndexedType i = argument->indexed();
  uint shift = 0;
  for(unsigned int a = 0; a < d->m_argumentsSize(); ++a) {
    if(d->m_arguments()[a] == i) {
      ++shift;
    }else if(shift) {
      d->m_argumentsList()[a-shift] = d->m_argumentsList()[a];
    }
  }
  d->m_argumentsList().resize(d->m_argumentsSize()-shift);
}

void FunctionType::setReturnType(AbstractType::Ptr returnType)
{
  d_func_dynamic()->m_returnType = returnType->indexed();
}

AbstractType::Ptr FunctionType::returnType () const
{
  return d_func()->m_returnType.abstractType();
}

QList<AbstractType::Ptr> FunctionType::arguments () const
{
  QList<AbstractType::Ptr> ret;
  FOREACH_FUNCTION(IndexedType arg, d_func()->m_arguments)
    ret << arg.abstractType();
  return ret;
}

const IndexedType* FunctionType::indexedArguments() const
{
  return d_func()->m_arguments();
}

uint FunctionType::indexedArgumentsSize() const
{
  return d_func()->m_argumentsSize();
}

void FunctionType::accept0 (TypeVisitor *v) const
{
  TYPE_D(FunctionType);
  if (v->visit (this))
  {
    acceptType (d->m_returnType.abstractType(), v);

    for (unsigned int i = 0; i < d->m_argumentsSize (); ++i)
      acceptType (d->m_arguments()[i].abstractType(), v);
  }

  v->endVisit (this);
}

void FunctionType::exchangeTypes( TypeExchanger* exchanger )
{
  TYPE_D_DYNAMIC(FunctionType);
  for (uint i = 0; i < d->m_argumentsSize (); ++i)
    d->m_argumentsList()[i] = exchanger->exchange( d->m_arguments()[i].abstractType() )->indexed();
  d->m_returnType = exchanger->exchange(d->m_returnType.abstractType())->indexed();
}

QString FunctionType::partToString( SignaturePart sigPart ) const {
  QString args;
  TYPE_D(FunctionType);
  if( sigPart == SignatureArguments || sigPart == SignatureWhole )
  {
    args += '(';
    bool first = true;
    FOREACH_FUNCTION(const IndexedType& type, d->m_arguments) {
      if (first)
        first = false;
      else
        args.append(", ");
      args.append(type ? type.abstractType()->toString() : QString("<notype>"));
    }
    args += ')';
  }

  if( sigPart == SignatureArguments )
    return args;
  else if( sigPart == SignatureWhole )
    return QString("function %1 %2").arg(returnType() ? returnType()->toString() : QString("<notype>")).arg(args);
  else if( sigPart == SignatureReturn )
    return returnType() ? returnType()->toString() : QString();

  return QString("ERROR");
}

QString FunctionType::toString() const
{
  return partToString(SignatureWhole) + AbstractType::toString(true);
}

AbstractType::WhichType FunctionType::whichType() const
{
  return TypeFunction;
}

uint FunctionType::hash() const
{
  uint hash_value = AbstractType::hash();
  hash_value += d_func()->m_returnType.hash() * 859321;

  FOREACH_FUNCTION(IndexedType t, d_func()->m_arguments) {
    hash_value = (hash_value << 5) - hash_value + t.hash();
  }

  return hash_value;
}

}

// kate: space-indent on; indent-width 2; tab-width 4; replace-tabs on; auto-insert-doxygen on

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