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binder.cpp

/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org>
**
** This file is part of the Qt Script Generator project on Trolltech Labs.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#include "binder.h"
#include "lexer.h"
#include "control.h"
#include "symbol.h"
#include "codemodel_finder.h"
#include "class_compiler.h"
#include "compiler_utils.h"
#include "tokens.h"
#include "dumptree.h"

#include <iostream>

#include <qdebug.h>

Binder::Binder(CodeModel *__model, LocationManager &__location, Control *__control)
  : _M_model(__model),
    _M_location(__location),
    _M_token_stream(&_M_location.token_stream),
    _M_control(__control),
    _M_current_function_type(CodeModel::Normal),
    type_cc(this),
    name_cc(this),
    decl_cc(this)
{
  _M_qualified_types["char"] = QString();
  _M_qualified_types["double"] = QString();
  _M_qualified_types["float"] = QString();
  _M_qualified_types["int"] = QString();
  _M_qualified_types["long"] = QString();
  _M_qualified_types["short"] = QString();
  _M_qualified_types["void"] = QString();
}

Binder::~Binder()
{
}

FileModelItem Binder::run(AST *node)
{
  FileModelItem old = _M_current_file;
  _M_current_access = CodeModel::Public;

  _M_current_file = model()->create<FileModelItem>();
  updateItemPosition (_M_current_file->toItem(), node);
  visit(node);
  FileModelItem result = _M_current_file;

  _M_current_file = old; // restore

  return result;
}

ScopeModelItem Binder::currentScope()
{
  if (_M_current_class)
    return model_static_cast<ScopeModelItem>(_M_current_class);
  else if (_M_current_namespace)
    return model_static_cast<ScopeModelItem>(_M_current_namespace);

  return model_static_cast<ScopeModelItem>(_M_current_file);
}

TemplateParameterList Binder::changeTemplateParameters(TemplateParameterList templateParameters)
{
  TemplateParameterList old = _M_current_template_parameters;
  _M_current_template_parameters = templateParameters;
  return old;
}

CodeModel::FunctionType Binder::changeCurrentFunctionType(CodeModel::FunctionType functionType)
{
  CodeModel::FunctionType old = _M_current_function_type;
  _M_current_function_type = functionType;
  return old;
}

CodeModel::AccessPolicy Binder::changeCurrentAccess(CodeModel::AccessPolicy accessPolicy)
{
  CodeModel::AccessPolicy old = _M_current_access;
  _M_current_access = accessPolicy;
  return old;
}

NamespaceModelItem Binder::changeCurrentNamespace(NamespaceModelItem item)
{
  NamespaceModelItem old = _M_current_namespace;
  _M_current_namespace = item;
  return old;
}

ClassModelItem Binder::changeCurrentClass(ClassModelItem item)
{
  ClassModelItem old = _M_current_class;
  _M_current_class = item;
  return old;
}

FunctionDefinitionModelItem Binder::changeCurrentFunction(FunctionDefinitionModelItem item)
{
  FunctionDefinitionModelItem old = _M_current_function;
  _M_current_function = item;
  return old;
}

int Binder::decode_token(std::size_t index) const
{
  return _M_token_stream->kind(index);
}

CodeModel::AccessPolicy Binder::decode_access_policy(std::size_t index) const
{
  switch (decode_token(index))
    {
      case Token_class:
        return CodeModel::Private;

      case Token_struct:
      case Token_union:
        return CodeModel::Public;

      default:
        return CodeModel::Public;
    }
}

CodeModel::ClassType Binder::decode_class_type(std::size_t index) const
{
  switch (decode_token(index))
    {
      case Token_class:
        return CodeModel::Class;
      case Token_struct:
        return CodeModel::Struct;
      case Token_union:
        return CodeModel::Union;
      default:
        std::cerr << "** WARNING unrecognized class type" << std::endl;
    }
    return CodeModel::Class;
}

const NameSymbol *Binder::decode_symbol(std::size_t index) const
{
  return _M_token_stream->symbol(index);
}

void Binder::visitAccessSpecifier(AccessSpecifierAST *node)
{
  const ListNode<std::size_t> *it =  node->specs;
  if (it == 0)
    return;

  it = it->toFront();
  const ListNode<std::size_t> *end = it;

  do
    {
      switch (decode_token(it->element))
        {
          default:
            break;

          case Token_public:
            changeCurrentAccess(CodeModel::Public);
            changeCurrentFunctionType(CodeModel::Normal);
            break;
          case Token_protected:
            changeCurrentAccess(CodeModel::Protected);
            changeCurrentFunctionType(CodeModel::Normal);
            break;
          case Token_private:
            changeCurrentAccess(CodeModel::Private);
            changeCurrentFunctionType(CodeModel::Normal);
            break;
          case Token_signals:
            changeCurrentAccess(CodeModel::Protected);
            changeCurrentFunctionType(CodeModel::Signal);
            break;
          case Token_slots:
            changeCurrentFunctionType(CodeModel::Slot);
            break;
        }
      it = it->next;
    }
  while (it != end);
}

void Binder::visitSimpleDeclaration(SimpleDeclarationAST *node)
{
  visit(node->type_specifier);

  if (const ListNode<InitDeclaratorAST*> *it = node->init_declarators)
    {
      it = it->toFront();
      const ListNode<InitDeclaratorAST*> *end = it;
      do
        {
          InitDeclaratorAST *init_declarator = it->element;
          declare_symbol(node, init_declarator);
          it = it->next;
        }
      while (it != end);
    }
}

void Binder::declare_symbol(SimpleDeclarationAST *node, InitDeclaratorAST *init_declarator)
{
  DeclaratorAST *declarator = init_declarator->declarator;

  while (declarator && declarator->sub_declarator)
    declarator = declarator->sub_declarator;

  NameAST *id = declarator->id;
  if (! declarator->id)
    {
      std::cerr << "** WARNING expected a declarator id" << std::endl;
      return;
    }

  CodeModelFinder finder(model(), this);
  ScopeModelItem symbolScope = finder.resolveScope(id, currentScope());
  if (! symbolScope)
    {
      name_cc.run(id);
      std::cerr << "** WARNING scope not found for symbol:"
                << qPrintable(name_cc.name()) << std::endl;
      return;
    }

  decl_cc.run(declarator);

  if (decl_cc.isFunction())
    {
      name_cc.run(id->unqualified_name);

      FunctionModelItem fun = model()->create<FunctionModelItem>();
      updateItemPosition (fun->toItem(), node);
      fun->setAccessPolicy(_M_current_access);
      fun->setFunctionType(_M_current_function_type);
      fun->setName(name_cc.name());
      fun->setAbstract(init_declarator->initializer != 0);
      fun->setConstant(declarator->fun_cv != 0);
      fun->setTemplateParameters(_M_current_template_parameters);
      applyStorageSpecifiers(node->storage_specifiers, model_static_cast<MemberModelItem>(fun));
      applyFunctionSpecifiers(node->function_specifiers, fun);

      // build the type
      TypeInfo typeInfo = CompilerUtils::typeDescription(node->type_specifier,
                                                         declarator,
                                                         this);

      fun->setType(qualifyType(typeInfo, symbolScope->qualifiedName()));


      fun->setVariadics (decl_cc.isVariadics ());

      // ... and the signature
      foreach (DeclaratorCompiler::Parameter p, decl_cc.parameters())
        {
          ArgumentModelItem arg = model()->create<ArgumentModelItem>();
          arg->setType(qualifyType(p.type, _M_context));
          arg->setName(p.name);
          arg->setDefaultValue(p.defaultValue);
          if (p.defaultValue)
              arg->setDefaultValueExpression(p.defaultValueExpression);
          fun->addArgument(arg);
        }

      fun->setScope(symbolScope->qualifiedName());
      symbolScope->addFunction(fun);
    }
  else
    {
      VariableModelItem var = model()->create<VariableModelItem>();
      updateItemPosition (var->toItem(), node);
      var->setTemplateParameters(_M_current_template_parameters);
      var->setAccessPolicy(_M_current_access);
      name_cc.run(id->unqualified_name);
      var->setName(name_cc.name());
      TypeInfo typeInfo = CompilerUtils::typeDescription(node->type_specifier,
                                                         declarator,
                                                         this);
      if (declarator != init_declarator->declarator
            && init_declarator->declarator->parameter_declaration_clause != 0)
        {
          typeInfo.setFunctionPointer (true);
          decl_cc.run (init_declarator->declarator);
          foreach (DeclaratorCompiler::Parameter p, decl_cc.parameters())
            typeInfo.addArgument(p.type);
        }

      var->setType(qualifyType(typeInfo, _M_context));
      applyStorageSpecifiers(node->storage_specifiers, model_static_cast<MemberModelItem>(var));

      var->setScope(symbolScope->qualifiedName());
      symbolScope->addVariable(var);
    }
}

void Binder::visitFunctionDefinition(FunctionDefinitionAST *node)
{
  Q_ASSERT(node->init_declarator != 0);

  ScopeModelItem scope = currentScope();

  InitDeclaratorAST *init_declarator = node->init_declarator;
  DeclaratorAST *declarator = init_declarator->declarator;

  // in the case of "void (func)()" or "void ((func))()" we need to
  // skip to the inner most.  This is in line with how the declarator
  // node is generated in 'parser.cpp'
  while (declarator && declarator->sub_declarator)
      declarator = declarator->sub_declarator;
  Q_ASSERT(declarator->id);

  CodeModelFinder finder(model(), this);

  ScopeModelItem functionScope = finder.resolveScope(declarator->id, scope);
  if (! functionScope)
    {
      name_cc.run(declarator->id);
      std::cerr << "** WARNING scope not found for function definition:"
                << qPrintable(name_cc.name()) << std::endl
                << "\tdefinition *ignored*"
                << std::endl;
      return;
    }

  decl_cc.run(declarator);

  Q_ASSERT(! decl_cc.id().isEmpty());

  FunctionDefinitionModelItem
    old = changeCurrentFunction(_M_model->create<FunctionDefinitionModelItem>());
  _M_current_function->setScope(functionScope->qualifiedName());
  updateItemPosition (_M_current_function->toItem(), node);

  Q_ASSERT(declarator->id->unqualified_name != 0);
  name_cc.run(declarator->id->unqualified_name);
  QString unqualified_name = name_cc.name();

  _M_current_function->setName(unqualified_name);
  TypeInfo tmp_type = CompilerUtils::typeDescription(node->type_specifier,
                                                     declarator, this);

  _M_current_function->setType(qualifyType(tmp_type, _M_context));
  _M_current_function->setAccessPolicy(_M_current_access);
  _M_current_function->setFunctionType(_M_current_function_type);
  _M_current_function->setConstant(declarator->fun_cv != 0);
  _M_current_function->setTemplateParameters(_M_current_template_parameters);

  applyStorageSpecifiers(node->storage_specifiers,
                          model_static_cast<MemberModelItem>(_M_current_function));
  applyFunctionSpecifiers(node->function_specifiers,
                          model_static_cast<FunctionModelItem>(_M_current_function));

  _M_current_function->setVariadics (decl_cc.isVariadics ());

  foreach (DeclaratorCompiler::Parameter p, decl_cc.parameters())
    {
      ArgumentModelItem arg = model()->create<ArgumentModelItem>();
      arg->setType(qualifyType(p.type, functionScope->qualifiedName()));
      arg->setName(p.name);
      arg->setDefaultValue(p.defaultValue);
      if (p.defaultValue)
        arg->setDefaultValueExpression(p.defaultValueExpression);
      _M_current_function->addArgument(arg);
    }

  functionScope->addFunctionDefinition(_M_current_function);

  FunctionModelItem prototype = model_static_cast<FunctionModelItem>(_M_current_function);
  FunctionModelItem declared = functionScope->declaredFunction(prototype);

  // try to find a function declaration for this definition..
  if (! declared)
    {
      functionScope->addFunction(prototype);
    }
  else
    {
      applyFunctionSpecifiers(node->function_specifiers, declared);

      // fix the function type and the access policy
      _M_current_function->setAccessPolicy(declared->accessPolicy());
      _M_current_function->setFunctionType(declared->functionType());
    }

  changeCurrentFunction(old);
}

void Binder::visitTemplateDeclaration(TemplateDeclarationAST *node)
{
    const ListNode<TemplateParameterAST*> *it = node->template_parameters;
    if (it == 0) {
        // QtScript: we want to visit the declaration still, so that
        // e.g. QMetaTypeId<Foo> is added to the code model
        visit(node->declaration);
        return;
    }

    TemplateParameterList savedTemplateParameters = changeTemplateParameters(TemplateParameterList());

    it = it->toFront();
    const ListNode<TemplateParameterAST*> *end = it;

    TemplateParameterList templateParameters;
    do {
        TemplateParameterAST *parameter = it->element;
        TypeParameterAST *type_parameter = parameter->type_parameter;

        NameAST *name;
        if (!type_parameter) {
            // A hacky hack to work around missing support for parameter declarations in
            // templates. We just need the to get the name of the variable, since we
            // aren't actually compiling these anyway. We are still not supporting much
            // more, but we are refusing to fail for a few more declarations
            if (parameter->parameter_declaration == 0 ||
                parameter->parameter_declaration->declarator == 0 ||
                parameter->parameter_declaration->declarator->id == 0) {

                    /*std::cerr << "** WARNING template declaration not supported ``";
                    Token const &tk = _M_token_stream->token ((int) node->start_token);
                    Token const &end_tk = _M_token_stream->token ((int) node->declaration->start_token);

                    std::cerr << std::string (&tk.text[tk.position], (end_tk.position) - tk.position) << "''"
                        << std::endl << std::endl;*/

                    changeTemplateParameters(savedTemplateParameters);
                    return;

            }

            name = parameter->parameter_declaration->declarator->id;
        } else {
            int tk = decode_token(type_parameter->type);
            if (tk != Token_typename && tk != Token_class)
            {
                /*std::cerr << "** WARNING template declaration not supported ``";
                Token const &tk = _M_token_stream->token ((int) node->start_token);
                Token const &end_tk = _M_token_stream->token ((int) node->declaration->start_token);

                std::cerr << std::string (&tk.text[tk.position], (end_tk.position) - tk.position) << "''"
                << std::endl << std::endl;*/

                changeTemplateParameters(savedTemplateParameters);
                return;
            }
            assert(tk == Token_typename || tk == Token_class);

            name = type_parameter->name;
        }

        TemplateParameterModelItem p = model()->create<TemplateParameterModelItem>();
        name_cc.run(name);
        p->setName(name_cc.name());

        _M_current_template_parameters.append(p);
        it = it->next;
    } while (it != end);

    visit(node->declaration);

    changeTemplateParameters(savedTemplateParameters);
}

void Binder::visitTypedef(TypedefAST *node)
{
  const ListNode<InitDeclaratorAST*> *it = node->init_declarators;
  if (it == 0)
    return;

  it = it->toFront();
  const ListNode<InitDeclaratorAST*> *end = it;

  do
    {
      InitDeclaratorAST *init_declarator = it->element;
      it = it->next;

      Q_ASSERT(init_declarator->declarator != 0);

      // the name
      decl_cc.run (init_declarator->declarator);
      QString alias_name = decl_cc.id ();

      if (alias_name.isEmpty ())
        {
          std::cerr << "** WARNING anonymous typedef not supported! ``";
          Token const &tk = _M_token_stream->token ((int) node->start_token);
          Token const &end_tk = _M_token_stream->token ((int) node->end_token);

          std::cerr << std::string (&tk.text[tk.position], end_tk.position - tk.position) << "''"
                    << std::endl << std::endl;
          continue;
        }

      // build the type
      TypeInfo typeInfo = CompilerUtils::typeDescription (node->type_specifier,
                                                          init_declarator->declarator,
                                                          this);
      DeclaratorAST *decl = init_declarator->declarator;
      while (decl && decl->sub_declarator)
        decl = decl->sub_declarator;

      if (decl != init_declarator->declarator
            && init_declarator->declarator->parameter_declaration_clause != 0)
        {
          typeInfo.setFunctionPointer (true);
          decl_cc.run (init_declarator->declarator);
          foreach (DeclaratorCompiler::Parameter p, decl_cc.parameters())
            typeInfo.addArgument(p.type);
        }

      ScopeModelItem scope = currentScope();
      DeclaratorAST *declarator = init_declarator->declarator;
      CodeModelFinder finder(model(), this);
      ScopeModelItem typedefScope = finder.resolveScope(declarator->id, scope);

      TypeAliasModelItem typeAlias = model ()->create<TypeAliasModelItem> ();
      updateItemPosition (typeAlias->toItem (), node);
      typeAlias->setName (alias_name);
      typeAlias->setType (qualifyType (typeInfo, currentScope ()->qualifiedName ()));
      typeAlias->setScope (typedefScope->qualifiedName());
      _M_qualified_types[typeAlias->qualifiedName().join(".")] = QString();
      currentScope ()->addTypeAlias (typeAlias);
    }
  while (it != end);
}

void Binder::visitNamespace(NamespaceAST *node)
{
  bool anonymous = (node->namespace_name == 0);

  ScopeModelItem scope = currentScope();

  NamespaceModelItem old;
  if (! anonymous)
    {
      QString name = decode_symbol(node->namespace_name)->as_string();

      QStringList qualified_name = scope->qualifiedName();
      qualified_name += name;
      NamespaceModelItem ns =
        model_safe_cast<NamespaceModelItem>(_M_model->findItem(qualified_name,
                                                                  _M_current_file->toItem()));
      if (!ns)
        {
          ns = _M_model->create<NamespaceModelItem>();
          updateItemPosition (ns->toItem(), node);
          ns->setName(name);
          ns->setScope(scope->qualifiedName());
        }
      old = changeCurrentNamespace(ns);

      _M_context.append(name);
    }

  DefaultVisitor::visitNamespace(node);

  if (! anonymous)
    {
      Q_ASSERT(scope->kind() == _CodeModelItem::Kind_Namespace
               || scope->kind() == _CodeModelItem::Kind_File);

      _M_context.removeLast();

      if (NamespaceModelItem ns = model_static_cast<NamespaceModelItem>(scope))
        {
          ns->addNamespace(_M_current_namespace);
        }

      changeCurrentNamespace(old);
    }
}

void Binder::visitForwardDeclarationSpecifier(ForwardDeclarationSpecifierAST *node)
{
    name_cc.run(node->name);
    if (name_cc.name().isEmpty())
        return;

    ScopeModelItem scope = currentScope();
    _M_qualified_types[(scope->qualifiedName() + name_cc.qualifiedName()).join(".") ] = QString();
}

void Binder::visitClassSpecifier(ClassSpecifierAST *node)
{
  ClassCompiler class_cc(this);
  class_cc.run(node);

  if (class_cc.name().isEmpty())
    {
      // anonymous not supported
      return;
    }

  Q_ASSERT(node->name != 0 && node->name->unqualified_name != 0);

  ScopeModelItem scope = currentScope();

  ClassModelItem old = changeCurrentClass(_M_model->create<ClassModelItem>());
  updateItemPosition (_M_current_class->toItem(), node);
  _M_current_class->setName(class_cc.name());

  QStringList baseClasses = class_cc.baseClasses(); TypeInfo info;
  for (int i=0; i<baseClasses.size(); ++i)
    {
        info.setQualifiedName(baseClasses.at(i).split("::"));
        baseClasses[i] = qualifyType(info, scope->qualifiedName()).qualifiedName().join("::");
    }

  _M_current_class->setBaseClasses(baseClasses);
  _M_current_class->setClassType(decode_class_type(node->class_key));
  _M_current_class->setTemplateParameters(_M_current_template_parameters);

  if (! _M_current_template_parameters.isEmpty())
    {
      QString name = _M_current_class->name();
      name += "<";
      for (int i = 0; i<_M_current_template_parameters.size(); ++i)
        {
          if (i != 0)
            name += ",";

          name += _M_current_template_parameters.at(i)->name();
        }

      name += ">";
      _M_current_class->setName(name);
    }

  CodeModel::AccessPolicy oldAccessPolicy = changeCurrentAccess(decode_access_policy(node->class_key));
  CodeModel::FunctionType oldFunctionType = changeCurrentFunctionType(CodeModel::Normal);

  _M_current_class->setScope(scope->qualifiedName());
  _M_qualified_types[_M_current_class->qualifiedName().join(".")] = QString();

  scope->addClass(_M_current_class);

  name_cc.run(node->name->unqualified_name);
  _M_context.append(name_cc.name());
  visitNodes(this, node->member_specs);
  _M_context.removeLast();

  changeCurrentClass(old);
  changeCurrentAccess(oldAccessPolicy);
  changeCurrentFunctionType(oldFunctionType);
}

void Binder::visitLinkageSpecification(LinkageSpecificationAST *node)
{
  DefaultVisitor::visitLinkageSpecification(node);
}

void Binder::visitUsing(UsingAST *node)
{
  DefaultVisitor::visitUsing(node);
}

void Binder::visitEnumSpecifier(EnumSpecifierAST *node)
{
  CodeModelFinder finder(model(), this);
  ScopeModelItem scope = currentScope();
  ScopeModelItem enumScope = finder.resolveScope(node->name, scope);

  name_cc.run(node->name);
  QString name = name_cc.name();

  if (name.isEmpty())
    {
      // anonymous enum
      QString key = _M_context.join("::");
      int current = ++_M_anonymous_enums[key];
      name += QLatin1String("enum_");
      name += QString::number(current);
    }

  _M_current_enum = model()->create<EnumModelItem>();
  _M_current_enum->setAccessPolicy(_M_current_access);
  updateItemPosition (_M_current_enum->toItem(), node);
  _M_current_enum->setName(name);
  _M_current_enum->setScope(enumScope->qualifiedName());

  _M_qualified_types[_M_current_enum->qualifiedName().join(".")] = QString();

  enumScope->addEnum(_M_current_enum);

  DefaultVisitor::visitEnumSpecifier(node);

  _M_current_enum = 0;
}

static QString strip_preprocessor_lines(const QString &name)
{
    QStringList lst = name.split("\n");
    QString s;
    for (int i=0; i<lst.size(); ++i) {
        if (!lst.at(i).startsWith('#'))
            s += lst.at(i);
    }
    return s.trimmed();
}

void Binder::visitEnumerator(EnumeratorAST *node)
{
  Q_ASSERT(_M_current_enum != 0);
  EnumeratorModelItem e = model()->create<EnumeratorModelItem>();
  updateItemPosition (e->toItem(), node);
  e->setName(decode_symbol(node->id)->as_string());

  if (ExpressionAST *expr = node->expression)
    {
      const Token &start_token = _M_token_stream->token((int) expr->start_token);
      const Token &end_token = _M_token_stream->token((int) expr->end_token);

      e->setValue(strip_preprocessor_lines(QString::fromUtf8(&start_token.text[start_token.position],
                                    (int) (end_token.position - start_token.position)).trimmed()).remove(' '));
    }

  _M_current_enum->addEnumerator(e);
}

void Binder::visitUsingDirective(UsingDirectiveAST *node)
{
  DefaultVisitor::visitUsingDirective(node);
}

void Binder::visitQEnums(QEnumsAST *node)
{
  const Token &start = _M_token_stream->token((int) node->start_token);
  const Token &end = _M_token_stream->token((int) node->end_token);
  QStringList enum_list = QString::fromLatin1(start.text + start.position,
                                              end.position - start.position).split(' ');

  ScopeModelItem scope = currentScope();
  for (int i=0; i<enum_list.size(); ++i)
    scope->addEnumsDeclaration(enum_list.at(i));
}

void Binder::visitQProperty(QPropertyAST *node)
{
    const Token &start = _M_token_stream->token((int) node->start_token);
    const Token &end = _M_token_stream->token((int) node->end_token);
    QString property = QString::fromLatin1(start.text + start.position,
                                           end.position - start.position);
    _M_current_class->addPropertyDeclaration(property);
}

void Binder::applyStorageSpecifiers(const ListNode<std::size_t> *it, MemberModelItem item)
{
  if (it == 0)
    return;

  it = it->toFront();
  const ListNode<std::size_t> *end = it;

  do
    {
      switch (decode_token(it->element))
        {
          default:
            break;

          case Token_friend:
            item->setFriend(true);
            break;
          case Token_auto:
            item->setAuto(true);
            break;
          case Token_register:
            item->setRegister(true);
            break;
          case Token_static:
            item->setStatic(true);
            break;
          case Token_extern:
            item->setExtern(true);
            break;
          case Token_mutable:
            item->setMutable(true);
            break;
        }
      it = it->next;
    }
  while (it != end);
}

void Binder::applyFunctionSpecifiers(const ListNode<std::size_t> *it, FunctionModelItem item)
{
  if (it == 0)
    return;

  it = it->toFront();
  const ListNode<std::size_t> *end = it;

  do
    {
      switch (decode_token(it->element))
        {
          default:
            break;

          case Token_inline:
            item->setInline(true);
            break;

          case Token_virtual:
            item->setVirtual(true);
            break;

          case Token_explicit:
            item->setExplicit(true);
            break;

          case Token_Q_INVOKABLE:
            item->setInvokable(true);
            break;
        }
      it = it->next;
    }
  while (it != end);
}

TypeInfo Binder::qualifyType(const TypeInfo &type, const QStringList &context) const
{
  // ### Potentially improve to use string list in the name table to
  if (context.size() == 0)
    {
      // ### We can assume that this means global namespace for now...
      return type;
    }
  else if (_M_qualified_types.contains(type.qualifiedName().join(".")))
    {
      return type;
    }
  else
    {
      QStringList expanded = context;
      expanded << type.qualifiedName();
      if (_M_qualified_types.contains(expanded.join(".")))
        {
          TypeInfo modified_type = type;
          modified_type.setQualifiedName(expanded);
          return modified_type;
        }
      else
        {
          CodeModelItem scope = model ()->findItem (context, _M_current_file->toItem ());

          if (ClassModelItem klass = model_dynamic_cast<ClassModelItem> (scope))
            {
              foreach (QString base, klass->baseClasses ())
                {
                  QStringList ctx = context;
                  ctx.removeLast();
                  ctx.append (base);

                  TypeInfo qualified = qualifyType (type, ctx);
                  if (qualified != type)
                    return qualified;
                }
            }

          QStringList copy = context;
          copy.removeLast();
          return qualifyType(type, copy);
        }
    }
}

void Binder::updateItemPosition(CodeModelItem item, AST *node)
{
  QString filename;
  int line, column;

  assert (node != 0);
  _M_location.positionAt (_M_token_stream->position(node->start_token), &line, &column, &filename);
  item->setFileName (filename);
}

// kate: space-indent on; indent-width 2; replace-tabs on;

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