tools/icheck/parser/src/shared/cplusplus/Symbols.cpp
changeset 0 876b1a06bc25
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/icheck/parser/src/shared/cplusplus/Symbols.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,1005 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#include "Symbols.h"
+#include "Names.h"
+#include "TypeVisitor.h"
+#include "SymbolVisitor.h"
+#include "TypeMatcher.h"
+#include "Scope.h"
+
+using namespace CPlusPlus;
+
+TemplateParameters::TemplateParameters(Scope *scope)
+    : _previous(0), _scope(scope)
+{ }
+
+TemplateParameters::TemplateParameters(TemplateParameters *previous, Scope *scope)
+    : _previous(previous), _scope(scope)
+{ }
+
+TemplateParameters::~TemplateParameters()
+{
+    delete _previous;
+    delete _scope;
+}
+
+TemplateParameters *TemplateParameters::previous() const
+{ return _previous; }
+
+Scope *TemplateParameters::scope() const
+{ return _scope; }
+
+UsingNamespaceDirective::UsingNamespaceDirective(TranslationUnit *translationUnit,
+                                                 unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name)
+{ }
+
+UsingNamespaceDirective::~UsingNamespaceDirective()
+{ }
+
+FullySpecifiedType UsingNamespaceDirective::type() const
+{ return FullySpecifiedType(); }
+
+void UsingNamespaceDirective::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+UsingDeclaration::UsingDeclaration(TranslationUnit *translationUnit,
+                                   unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name)
+{ }
+
+UsingDeclaration::~UsingDeclaration()
+{ }
+
+FullySpecifiedType UsingDeclaration::type() const
+{ return FullySpecifiedType(); }
+
+void UsingDeclaration::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+Declaration::Declaration(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name),
+      _templateParameters(0)
+{ }
+
+Declaration::~Declaration()
+{ delete _templateParameters; }
+
+TemplateParameters *Declaration::templateParameters() const
+{ return _templateParameters; }
+
+void Declaration::setTemplateParameters(TemplateParameters *templateParameters)
+{ _templateParameters = templateParameters; }
+
+void Declaration::setType(const FullySpecifiedType &type)
+{ _type = type; }
+
+FullySpecifiedType Declaration::type() const
+{ return _type; }
+
+void Declaration::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+Argument::Argument(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name),
+      _initializer(0)
+{ }
+
+Argument::~Argument()
+{ }
+
+bool Argument::hasInitializer() const
+{ return _initializer != 0; }
+
+const StringLiteral *Argument::initializer() const
+{ return _initializer; }
+
+void Argument::setInitializer(const StringLiteral *initializer)
+{ _initializer = initializer; }
+
+void Argument::setType(const FullySpecifiedType &type)
+{ _type = type; }
+
+FullySpecifiedType Argument::type() const
+{ return _type; }
+
+void Argument::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+TypenameArgument::TypenameArgument(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name)
+{ }
+
+TypenameArgument::~TypenameArgument()
+{ }
+
+void TypenameArgument::setType(const FullySpecifiedType &type)
+{ _type = type; }
+
+FullySpecifiedType TypenameArgument::type() const
+{ return _type; }
+
+void TypenameArgument::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+Function::Function(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : ScopedSymbol(translationUnit, sourceLocation, name),
+     _templateParameters(0),
+     _flags(0)
+{ _arguments = new Scope(this); }
+
+Function::~Function()
+{
+    delete _templateParameters;
+    delete _arguments;
+}
+
+bool Function::isNormal() const
+{ return f._methodKey == NormalMethod; }
+
+bool Function::isSignal() const
+{ return f._methodKey == SignalMethod; }
+
+bool Function::isSlot() const
+{ return f._methodKey == SlotMethod; }
+
+int Function::methodKey() const
+{ return f._methodKey; }
+
+void Function::setMethodKey(int key)
+{ f._methodKey = key; }
+
+unsigned Function::templateParameterCount() const
+{
+    if (! _templateParameters)
+        return 0;
+
+    return _templateParameters->scope()->symbolCount();
+}
+
+Symbol *Function::templateParameterAt(unsigned index) const
+{ return _templateParameters->scope()->symbolAt(index); }
+
+TemplateParameters *Function::templateParameters() const
+{ return _templateParameters; }
+
+void Function::setTemplateParameters(TemplateParameters *templateParameters)
+{ _templateParameters = templateParameters; }
+
+bool Function::isEqualTo(const Type *other) const
+{
+    const Function *o = other->asFunctionType();
+    if (! o)
+        return false;
+    else if (isConst() != o->isConst())
+        return false;
+    else if (isVolatile() != o->isVolatile())
+        return false;
+#ifdef ICHECK_BUILD
+    else if (isInvokable() != o->isInvokable())
+        return false;
+    else if (isSignal() != o->isSignal())
+        return false;
+#endif
+
+    const Name *l = identity();
+    const Name *r = o->identity();
+    if (l == r || (l && l->isEqualTo(r))) {
+        if (_arguments->symbolCount() != o->_arguments->symbolCount())
+            return false;
+        else if (! _returnType.isEqualTo(o->_returnType))
+            return false;
+        for (unsigned i = 0; i < _arguments->symbolCount(); ++i) {
+            Symbol *l = _arguments->symbolAt(i);
+            Symbol *r = o->_arguments->symbolAt(i);
+            if (! l->type().isEqualTo(r->type()))
+                return false;
+        }
+        return true;
+    }
+    return false;
+}
+
+#ifdef ICHECK_BUILD
+bool Function::isEqualTo(const Function* fct, bool ignoreName/* = false*/) const
+{
+    if(!ignoreName)
+        return isEqualTo((Type*)fct);
+
+    if (! fct)
+        return false;
+    else if (isConst() != fct->isConst())
+        return false;
+    else if (isVolatile() != fct->isVolatile())
+        return false;
+    else if (isInvokable() != fct->isInvokable())
+        return false;
+    else if (isSignal() != fct->isSignal())
+        return false;
+
+    if (_arguments->symbolCount() != fct->_arguments->symbolCount())
+        return false;
+    else if (! _returnType.isEqualTo(fct->_returnType))
+        return false;
+    for (unsigned i = 0; i < _arguments->symbolCount(); ++i) {
+        Symbol *l = _arguments->symbolAt(i);
+        Symbol *r = fct->_arguments->symbolAt(i);
+        if (! l->type().isEqualTo(r->type()))
+            return false;
+    }
+    return true;
+}
+#endif
+
+void Function::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool Function::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const Function *otherTy = otherType->asFunctionType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+FullySpecifiedType Function::type() const
+{ return FullySpecifiedType(const_cast<Function *>(this)); }
+
+FullySpecifiedType Function::returnType() const
+{ return _returnType; }
+
+void Function::setReturnType(const FullySpecifiedType &returnType)
+{ _returnType = returnType; }
+
+bool Function::hasReturnType() const
+{
+    const FullySpecifiedType ty = returnType();
+    return ty.isValid() || ty.isSigned() || ty.isUnsigned();
+}
+
+unsigned Function::argumentCount() const
+{
+    if (! _arguments)
+        return 0;
+
+    return _arguments->symbolCount();
+}
+
+Symbol *Function::argumentAt(unsigned index) const
+{ return _arguments->symbolAt(index); }
+
+Scope *Function::arguments() const
+{ return _arguments; }
+
+bool Function::hasArguments() const
+{
+    return ! (argumentCount() == 0 ||
+              (argumentCount() == 1 && argumentAt(0)->type()->isVoidType()));
+}
+
+bool Function::isVirtual() const
+{ return f._isVirtual; }
+
+void Function::setVirtual(bool isVirtual)
+{ f._isVirtual = isVirtual; }
+
+bool Function::isVariadic() const
+{ return f._isVariadic; }
+
+void Function::setVariadic(bool isVariadic)
+{ f._isVariadic = isVariadic; }
+
+bool Function::isConst() const
+{ return f._isConst; }
+
+void Function::setConst(bool isConst)
+{ f._isConst = isConst; }
+
+bool Function::isVolatile() const
+{ return f._isVolatile; }
+
+void Function::setVolatile(bool isVolatile)
+{ f._isVolatile = isVolatile; }
+
+bool Function::isPureVirtual() const
+{ return f._isPureVirtual; }
+
+void Function::setPureVirtual(bool isPureVirtual)
+{ f._isPureVirtual = isPureVirtual; }
+
+#ifdef ICHECK_BUILD
+
+bool Function::isInvokable() const
+{ return f._isInvokable == 1; }
+
+void Function::setInvokable(bool isInvokable)
+{ f._isInvokable = isInvokable; }
+
+#endif
+
+bool Function::isAmbiguous() const
+{ return f._isAmbiguous; }
+
+void Function::setAmbiguous(bool isAmbiguous)
+{ f._isAmbiguous = isAmbiguous; }
+
+void Function::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        for (unsigned i = 0; i < _arguments->symbolCount(); ++i) {
+            visitSymbol(_arguments->symbolAt(i), visitor);
+        }
+        for (unsigned i = 0; i < memberCount(); ++i) {
+            visitSymbol(memberAt(i), visitor);
+        }
+    }
+}
+
+ScopedSymbol::ScopedSymbol(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name)
+{ _members = new Scope(this); }
+
+ScopedSymbol::~ScopedSymbol()
+{ delete _members; }
+
+unsigned ScopedSymbol::memberCount() const
+{
+    if (! _members)
+        return 0;
+    return _members->symbolCount();
+}
+
+Symbol *ScopedSymbol::memberAt(unsigned index) const
+{
+    if (! _members)
+        return 0;
+    return _members->symbolAt(index);
+}
+
+Scope *ScopedSymbol::members() const
+{ return _members; }
+
+void ScopedSymbol::addMember(Symbol *member)
+{ _members->enterSymbol(member); }
+
+Block::Block(TranslationUnit *translationUnit, unsigned sourceLocation)
+    : ScopedSymbol(translationUnit, sourceLocation, /*name = */ 0)
+{ }
+
+Block::~Block()
+{ }
+
+FullySpecifiedType Block::type() const
+{ return FullySpecifiedType(); }
+
+void Block::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        for (unsigned i = 0; i < memberCount(); ++i) {
+            visitSymbol(memberAt(i), visitor);
+        }
+    }
+}
+
+Enum::Enum(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : ScopedSymbol(translationUnit, sourceLocation, name)
+{ }
+
+Enum::~Enum()
+{ }
+
+FullySpecifiedType Enum::type() const
+{ return FullySpecifiedType(const_cast<Enum *>(this)); }
+
+bool Enum::isEqualTo(const Type *other) const
+{
+    const Enum *o = other->asEnumType();
+    if (! o)
+        return false;
+    const Name *l = identity();
+    const Name *r = o->identity();
+    if (l == r)
+        return true;
+    else if (! l)
+        return false;
+    return l->isEqualTo(r);
+}
+
+void Enum::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool Enum::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const Enum *otherTy = otherType->asEnumType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+void Enum::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        for (unsigned i = 0; i < memberCount(); ++i) {
+            visitSymbol(memberAt(i), visitor);
+        }
+    }
+}
+
+Namespace::Namespace(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : ScopedSymbol(translationUnit, sourceLocation, name)
+{ }
+
+Namespace::~Namespace()
+{ }
+
+bool Namespace::isEqualTo(const Type *other) const
+{
+    const Namespace *o = other->asNamespaceType();
+    if (! o)
+        return false;
+    const Name *l = identity();
+    const Name *r = o->identity();
+    if (l == r || (l && l->isEqualTo(r)))
+        return true;
+    return false;
+}
+
+void Namespace::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool Namespace::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const Namespace *otherTy = otherType->asNamespaceType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+void Namespace::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        for (unsigned i = 0; i < memberCount(); ++i) {
+            visitSymbol(memberAt(i), visitor);
+        }
+    }
+}
+
+FullySpecifiedType Namespace::type() const
+{ return FullySpecifiedType(const_cast<Namespace *>(this)); }
+
+BaseClass::BaseClass(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name),
+      _isVirtual(false)
+{ }
+
+BaseClass::~BaseClass()
+{ }
+
+FullySpecifiedType BaseClass::type() const
+{ return _type; }
+
+void BaseClass::setType(const FullySpecifiedType &type)
+{ _type = type; }
+
+bool BaseClass::isVirtual() const
+{ return _isVirtual; }
+
+void BaseClass::setVirtual(bool isVirtual)
+{ _isVirtual = isVirtual; }
+
+void BaseClass::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+ForwardClassDeclaration::ForwardClassDeclaration(TranslationUnit *translationUnit,
+                                                 unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name),
+      _templateParameters(0)
+{ }
+
+ForwardClassDeclaration::~ForwardClassDeclaration()
+{ delete _templateParameters; }
+
+TemplateParameters *ForwardClassDeclaration::templateParameters() const
+{ return _templateParameters; }
+
+void ForwardClassDeclaration::setTemplateParameters(TemplateParameters *templateParameters)
+{ _templateParameters = templateParameters; }
+
+FullySpecifiedType ForwardClassDeclaration::type() const
+{ return FullySpecifiedType(const_cast<ForwardClassDeclaration *>(this)); }
+
+bool ForwardClassDeclaration::isEqualTo(const Type *other) const
+{
+    if (const ForwardClassDeclaration *otherClassFwdTy = other->asForwardClassDeclarationType()) {
+        if (name() == otherClassFwdTy->name())
+            return true;
+        else if (name() && otherClassFwdTy->name())
+            return name()->isEqualTo(otherClassFwdTy->name());
+
+        return false;
+    }
+    return false;
+}
+
+void ForwardClassDeclaration::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+void ForwardClassDeclaration::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool ForwardClassDeclaration::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const ForwardClassDeclaration *otherTy = otherType->asForwardClassDeclarationType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+Class::Class(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : ScopedSymbol(translationUnit, sourceLocation, name),
+      _key(ClassKey),
+      _templateParameters(0)
+{ }
+
+Class::~Class()
+{ delete _templateParameters; }
+
+bool Class::isClass() const
+{ return _key == ClassKey; }
+
+bool Class::isStruct() const
+{ return _key == StructKey; }
+
+bool Class::isUnion() const
+{ return _key == UnionKey; }
+
+Class::Key Class::classKey() const
+{ return _key; }
+
+void Class::setClassKey(Key key)
+{ _key = key; }
+
+unsigned Class::templateParameterCount() const
+{
+    if (! _templateParameters)
+        return 0;
+
+    return _templateParameters->scope()->symbolCount();
+}
+
+Symbol *Class::templateParameterAt(unsigned index) const
+{ return _templateParameters->scope()->symbolAt(index); }
+
+TemplateParameters *Class::templateParameters() const
+{ return _templateParameters; }
+
+void Class::setTemplateParameters(TemplateParameters *templateParameters)
+{ _templateParameters = templateParameters; }
+
+void Class::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool Class::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const Class *otherTy = otherType->asClassType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+unsigned Class::baseClassCount() const
+{ return _baseClasses.count(); }
+
+BaseClass *Class::baseClassAt(unsigned index) const
+{ return _baseClasses.at(index); }
+
+void Class::addBaseClass(BaseClass *baseClass)
+{ _baseClasses.push_back(baseClass); }
+
+FullySpecifiedType Class::type() const
+{ return FullySpecifiedType(const_cast<Class *>(this)); }
+
+bool Class::isEqualTo(const Type *other) const
+{
+    const Class *o = other->asClassType();
+    if (! o)
+        return false;
+    const Name *l = identity();
+    const Name *r = o->identity();
+    if (l == r || (l && l->isEqualTo(r)))
+        return true;
+    else
+        return false;
+}
+
+void Class::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        for (unsigned i = 0; i < _baseClasses.size(); ++i) {
+            visitSymbol(_baseClasses.at(i), visitor);
+        }
+        for (unsigned i = 0; i < memberCount(); ++i) {
+            visitSymbol(memberAt(i), visitor);
+        }
+    }
+}
+
+ObjCBaseClass::ObjCBaseClass(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name)
+{ }
+
+ObjCBaseClass::~ObjCBaseClass()
+{ }
+
+FullySpecifiedType ObjCBaseClass::type() const
+{ return FullySpecifiedType(); }
+
+void ObjCBaseClass::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+ObjCBaseProtocol::ObjCBaseProtocol(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : Symbol(translationUnit, sourceLocation, name)
+{ }
+
+ObjCBaseProtocol::~ObjCBaseProtocol()
+{ }
+
+FullySpecifiedType ObjCBaseProtocol::type() const
+{ return FullySpecifiedType(); }
+
+void ObjCBaseProtocol::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+ObjCClass::ObjCClass(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name):
+        ScopedSymbol(translationUnit, sourceLocation, name),
+        _isInterface(false),
+        _categoryName(0),
+        _baseClass(0)
+{
+}
+
+ObjCClass::~ObjCClass()
+{}
+
+FullySpecifiedType ObjCClass::type() const
+{ return FullySpecifiedType(const_cast<ObjCClass *>(this)); }
+
+bool ObjCClass::isEqualTo(const Type *other) const
+{
+    const ObjCClass *o = other->asObjCClassType();
+    if (!o)
+        return false;
+
+    const Name *l = identity();
+    const Name *r = o->identity();
+    if (l == r || (l && l->isEqualTo(r)))
+        return true;
+    else
+        return false;
+}
+
+void ObjCClass::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        if (_baseClass)
+            visitSymbol(_baseClass, visitor);
+
+        for (unsigned i = 0; i < _protocols.size(); ++i)
+            visitSymbol(_protocols.at(i), visitor);
+
+        for (unsigned i = 0; i < memberCount(); ++i)
+            visitSymbol(memberAt(i), visitor);
+    }
+}
+
+void ObjCClass::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool ObjCClass::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const ObjCClass *otherTy = otherType->asObjCClassType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+ObjCProtocol::ObjCProtocol(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name):
+        ScopedSymbol(translationUnit, sourceLocation, name)
+{
+}
+
+ObjCProtocol::~ObjCProtocol()
+{}
+
+FullySpecifiedType ObjCProtocol::type() const
+{ return FullySpecifiedType(const_cast<ObjCProtocol *>(this)); }
+
+bool ObjCProtocol::isEqualTo(const Type *other) const
+{
+    const ObjCProtocol *o = other->asObjCProtocolType();
+    if (!o)
+        return false;
+
+    const Name *l = identity();
+    const Name *r = o->identity();
+    if (l == r || (l && l->isEqualTo(r)))
+        return true;
+    else
+        return false;
+}
+
+void ObjCProtocol::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        for (unsigned i = 0; i < _protocols.size(); ++i)
+            visitSymbol(_protocols.at(i), visitor);
+    }
+}
+
+void ObjCProtocol::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool ObjCProtocol::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const ObjCProtocol *otherTy = otherType->asObjCProtocolType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+ObjCForwardClassDeclaration::ObjCForwardClassDeclaration(TranslationUnit *translationUnit, unsigned sourceLocation,
+                                                         const Name *name):
+        Symbol(translationUnit, sourceLocation, name)
+{
+}
+
+ObjCForwardClassDeclaration::~ObjCForwardClassDeclaration()
+{}
+
+FullySpecifiedType ObjCForwardClassDeclaration::type() const
+{ return FullySpecifiedType(); }
+
+bool ObjCForwardClassDeclaration::isEqualTo(const Type *other) const
+{
+    if (const ObjCForwardClassDeclaration *otherFwdClass = other->asObjCForwardClassDeclarationType()) {
+        if (name() == otherFwdClass->name())
+            return true;
+        else if (name() && otherFwdClass->name())
+            return name()->isEqualTo(otherFwdClass->name());
+        else
+            return false;
+    }
+
+    return false;
+}
+
+void ObjCForwardClassDeclaration::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+void ObjCForwardClassDeclaration::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool ObjCForwardClassDeclaration::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const ObjCForwardClassDeclaration *otherTy = otherType->asObjCForwardClassDeclarationType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+ObjCForwardProtocolDeclaration::ObjCForwardProtocolDeclaration(TranslationUnit *translationUnit, unsigned sourceLocation,
+                                                               const Name *name):
+        Symbol(translationUnit, sourceLocation, name)
+{
+}
+
+ObjCForwardProtocolDeclaration::~ObjCForwardProtocolDeclaration()
+{}
+
+FullySpecifiedType ObjCForwardProtocolDeclaration::type() const
+{ return FullySpecifiedType(); }
+
+bool ObjCForwardProtocolDeclaration::isEqualTo(const Type *other) const
+{
+    if (const ObjCForwardProtocolDeclaration *otherFwdProtocol = other->asObjCForwardProtocolDeclarationType()) {
+        if (name() == otherFwdProtocol->name())
+            return true;
+        else if (name() && otherFwdProtocol->name())
+            return name()->isEqualTo(otherFwdProtocol->name());
+        else
+            return false;
+    }
+
+    return false;
+}
+
+void ObjCForwardProtocolDeclaration::visitSymbol0(SymbolVisitor *visitor)
+{ visitor->visit(this); }
+
+void ObjCForwardProtocolDeclaration::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool ObjCForwardProtocolDeclaration::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const ObjCForwardProtocolDeclaration *otherTy = otherType->asObjCForwardProtocolDeclarationType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+ObjCMethod::ObjCMethod(TranslationUnit *translationUnit, unsigned sourceLocation, const Name *name)
+    : ScopedSymbol(translationUnit, sourceLocation, name),
+     _flags(0)
+{ _arguments = new Scope(this); }
+
+ObjCMethod::~ObjCMethod()
+{
+    delete _arguments;
+}
+
+bool ObjCMethod::isEqualTo(const Type *other) const
+{
+    const ObjCMethod *o = other->asObjCMethodType();
+    if (! o)
+        return false;
+
+    const Name *l = identity();
+    const Name *r = o->identity();
+    if (l == r || (l && l->isEqualTo(r))) {
+        if (_arguments->symbolCount() != o->_arguments->symbolCount())
+            return false;
+        else if (! _returnType.isEqualTo(o->_returnType))
+            return false;
+        for (unsigned i = 0; i < _arguments->symbolCount(); ++i) {
+            Symbol *l = _arguments->symbolAt(i);
+            Symbol *r = o->_arguments->symbolAt(i);
+            if (! l->type().isEqualTo(r->type()))
+                return false;
+        }
+        return true;
+    }
+    return false;
+}
+
+void ObjCMethod::accept0(TypeVisitor *visitor)
+{ visitor->visit(this); }
+
+bool ObjCMethod::matchType0(const Type *otherType, TypeMatcher *matcher) const
+{
+    if (const ObjCMethod *otherTy = otherType->asObjCMethodType())
+        return matcher->match(this, otherTy);
+
+    return false;
+}
+
+FullySpecifiedType ObjCMethod::type() const
+{ return FullySpecifiedType(const_cast<ObjCMethod *>(this)); }
+
+FullySpecifiedType ObjCMethod::returnType() const
+{ return _returnType; }
+
+void ObjCMethod::setReturnType(const FullySpecifiedType &returnType)
+{ _returnType = returnType; }
+
+bool ObjCMethod::hasReturnType() const
+{
+    const FullySpecifiedType ty = returnType();
+    return ty.isValid() || ty.isSigned() || ty.isUnsigned();
+}
+
+unsigned ObjCMethod::argumentCount() const
+{
+    if (! _arguments)
+        return 0;
+
+    return _arguments->symbolCount();
+}
+
+Symbol *ObjCMethod::argumentAt(unsigned index) const
+{ return _arguments->symbolAt(index); }
+
+Scope *ObjCMethod::arguments() const
+{ return _arguments; }
+
+bool ObjCMethod::hasArguments() const
+{
+    return ! (argumentCount() == 0 ||
+              (argumentCount() == 1 && argumentAt(0)->type()->isVoidType()));
+}
+
+bool ObjCMethod::isVariadic() const
+{ return f._isVariadic; }
+
+void ObjCMethod::setVariadic(bool isVariadic)
+{ f._isVariadic = isVariadic; }
+
+void ObjCMethod::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+        for (unsigned i = 0; i < _arguments->symbolCount(); ++i) {
+            visitSymbol(_arguments->symbolAt(i), visitor);
+        }
+        for (unsigned i = 0; i < memberCount(); ++i) {
+            visitSymbol(memberAt(i), visitor);
+        }
+    }
+}
+
+ObjCPropertyDeclaration::ObjCPropertyDeclaration(TranslationUnit *translationUnit,
+                                                 unsigned sourceLocation,
+                                                 const Name *name):
+    Symbol(translationUnit, sourceLocation, name),
+    _propertyAttributes(None),
+    _getterName(0),
+    _setterName(0)
+{}
+
+ObjCPropertyDeclaration::~ObjCPropertyDeclaration()
+{}
+
+FullySpecifiedType ObjCPropertyDeclaration::type() const
+{ return _type; }
+
+void ObjCPropertyDeclaration::visitSymbol0(SymbolVisitor *visitor)
+{
+    if (visitor->visit(this)) {
+    }
+}