/*
 * See the dyninst/COPYRIGHT file for copyright information.
 * 
 * We provide the Paradyn Tools (below described as "Paradyn")
 * on an AS IS basis, and do not warrant its validity or performance.
 * We reserve the right to update, modify, or discontinue this
 * software at any time.  We shall have no obligation to supply such
 * updates or modifications or any other form of support to you.
 * 
 * By your use of Paradyn, you understand and agree that we (or any
 * other person or entity with proprietary rights in Paradyn) are
 * under no obligation to provide either maintenance services,
 * update services, notices of latent defects, or correction of
 * defects for Paradyn.
 * 
 * This library 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 2.1 of the License, or (at your option) any later version.
 * 
 * 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "ASTWidget.h"
#include "dyninstAPI/src/ast.h"
#include "../dyninstAPI/src/debug.h"
#include "dyninstAPI/src/registerSpace.h"
#include "dyninstAPI/src/instPoint.h"
#include "../CodeBuffer.h"
#include "CFG.h"
#include <string>
#include "../CodeTracker.h"

using namespace Dyninst;
using namespace Relocation;

ASTWidget::Ptr ASTWidget::create(AstNodePtr a, instPoint *b) {
  return Ptr(new ASTWidget(a, b));
}

bool ASTWidget::generate(const codeGen &,
                       const RelocBlock *,
                       CodeBuffer &buffer) {
  AstPatch *patch = new AstPatch(ast_, point_);
  buffer.addPatch(patch, tracker());
  return true;
}

TrackerElement *ASTWidget::tracker() const {
   OriginalTracker *e = new OriginalTracker(point_->addr_compat(), point_->block(), point_->func());
   return e;
}

std::string ASTWidget::format() const {
  return "AST(*)";
}

// Could be a lot smarter here...
bool AstPatch::apply(codeGen &gen, CodeBuffer *) {
  relocation_cerr << "\t\t AstPatch::apply" << endl;
  registerSpace *localRegSpace = registerSpace::actualRegSpace(point);
  gen.setRegisterSpace(localRegSpace);

  return ast->generateCode(gen, true);
}

unsigned AstPatch::estimate(codeGen &) {
   // Will force an extra run of codeGen,
   // but that's okay
   return 0;
}

AstPatch::~AstPatch() {}
