forked from qt-creator/qt-creator
867 lines
23 KiB
C++
867 lines
23 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://qt.nokia.com/contact.
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**
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**************************************************************************/
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#include "CppBindings.h"
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#include "CppDocument.h"
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#include "Overview.h"
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#include <CoreTypes.h>
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#include <Symbols.h>
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#include <Literals.h>
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#include <Names.h>
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#include <Scope.h>
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#include <Control.h>
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#include <SymbolVisitor.h>
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#include <QtDebug>
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using namespace CPlusPlus;
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////////////////////////////////////////////////////////////////////////////////
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// Location
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////////////////////////////////////////////////////////////////////////////////
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Location::Location()
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: _fileId(0),
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_sourceLocation(0)
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{ }
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Location::Location(Symbol *symbol)
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: _fileId(symbol->fileId()),
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_sourceLocation(symbol->sourceLocation())
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{ }
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Location::Location(const StringLiteral *fileId, unsigned sourceLocation)
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: _fileId(fileId), _sourceLocation(sourceLocation)
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{ }
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////////////////////////////////////////////////////////////////////////////////
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// NamespaceBinding
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////////////////////////////////////////////////////////////////////////////////
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NamespaceBinding::NamespaceBinding(NamespaceBinding *parent)
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: parent(parent),
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anonymousNamespaceBinding(0)
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{
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if (parent)
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parent->children.append(this);
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}
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NamespaceBinding::~NamespaceBinding()
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{
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qDeleteAll(QList<NamespaceBinding *>(children));
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qDeleteAll(QList<ClassBinding *>(classBindings));
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if (parent)
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parent->asNamespaceBinding()->children.removeAll(this);
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parent = 0;
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}
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const NameId *NamespaceBinding::name() const
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{
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if (symbols.size()) {
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if (const Name *name = symbols.first()->name()) {
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const NameId *nameId = name->asNameId();
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Q_ASSERT(nameId != 0);
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return nameId;
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}
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}
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return 0;
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}
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const Identifier *NamespaceBinding::identifier() const
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{
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if (const NameId *nameId = name())
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return nameId->identifier();
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return 0;
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}
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NamespaceBinding *NamespaceBinding::globalNamespaceBinding()
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{
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NamespaceBinding *it = this;
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for (; it; it = it->parent) {
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if (! it->parent)
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break;
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}
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return it;
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}
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Binding *NamespaceBinding::findClassOrNamespaceBinding(const Identifier *id, QSet<Binding *> *processed)
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{
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if (processed->contains(this))
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return 0;
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processed->insert(this);
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if (id->isEqualTo(identifier()))
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return const_cast<NamespaceBinding *>(this);
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foreach (NamespaceBinding *nestedNamespaceBinding, children) {
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if (id->isEqualTo(nestedNamespaceBinding->identifier()))
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return nestedNamespaceBinding;
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}
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foreach (ClassBinding *classBinding, classBindings) {
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if (id->isEqualTo(classBinding->identifier()))
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return classBinding;
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}
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foreach (NamespaceBinding *u, usings) {
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if (Binding *b = u->findClassOrNamespaceBinding(id, processed))
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return b;
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}
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if (parent)
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return parent->findClassOrNamespaceBinding(id, processed);
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return 0;
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}
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ClassBinding *NamespaceBinding::findClassBinding(const Name *name, QSet<Binding *> *processed)
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{
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if (! name)
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return 0;
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if (processed->contains(this))
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return 0;
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if (const QualifiedNameId *q = name->asQualifiedNameId()) {
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Binding *current = this;
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for (unsigned i = 0; i < q->nameCount(); ++i) {
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const Identifier *nameId = q->nameAt(i)->identifier();
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if (! nameId)
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return 0;
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QSet<Binding *> visited;
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Binding *binding = current->findClassOrNamespaceBinding(nameId, &visited); // ### TODO: check recursion.
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if (! binding)
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return 0;
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current = binding;
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}
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return current->asClassBinding();
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}
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processed->insert(this);
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const Identifier *id = name->identifier();
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foreach (ClassBinding *classBinding, classBindings) {
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if (id->isEqualTo(classBinding->identifier()))
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return classBinding;
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}
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if (parent)
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return parent->findClassBinding(name, processed);
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foreach (NamespaceBinding *u, usings) {
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if (ClassBinding *classBinding = u->findClassBinding(name, processed))
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return classBinding;
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}
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return 0;
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}
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NamespaceBinding *NamespaceBinding::findNamespaceBinding(const Name *name)
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{
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if (! name)
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return anonymousNamespaceBinding;
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else if (const NameId *nameId = name->asNameId())
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return findNamespaceBindingForNameId(nameId, /*lookAtParent = */ true);
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else if (const QualifiedNameId *q = name->asQualifiedNameId()) {
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NamespaceBinding *current = this;
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for (unsigned i = 0; i < q->nameCount(); ++i) {
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const NameId *namespaceName = q->nameAt(i)->asNameId();
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if (! namespaceName)
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return 0;
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bool lookAtParent = false;
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if (i == 0)
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lookAtParent = true;
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NamespaceBinding *binding = current->findNamespaceBindingForNameId(namespaceName, lookAtParent);
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if (! binding)
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return 0;
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current = binding;
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}
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return current;
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}
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// invalid binding
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return 0;
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}
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NamespaceBinding *NamespaceBinding::findNamespaceBindingForNameId(const NameId *name,
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bool lookAtParentNamespace)
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{
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QSet<NamespaceBinding *> processed;
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return findNamespaceBindingForNameId_helper(name, lookAtParentNamespace, &processed);
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}
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NamespaceBinding *NamespaceBinding::findNamespaceBindingForNameId_helper(const NameId *name,
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bool lookAtParentNamespace,
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QSet<NamespaceBinding *> *processed)
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{
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if (processed->contains(this))
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return 0;
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processed->insert(this);
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foreach (NamespaceBinding *binding, children) {
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const Name *bindingName = binding->name();
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if (! bindingName)
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continue;
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if (const NameId *bindingNameId = bindingName->asNameId()) {
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if (name->isEqualTo(bindingNameId))
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return binding;
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}
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}
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foreach (NamespaceBinding *u, usings) {
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if (NamespaceBinding *b = u->findNamespaceBindingForNameId_helper(name, lookAtParentNamespace, processed)) {
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return b;
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}
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}
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if (lookAtParentNamespace && parent)
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return parent->findNamespaceBindingForNameId_helper(name, lookAtParentNamespace, processed);
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return 0;
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}
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NamespaceBinding *NamespaceBinding::findOrCreateNamespaceBinding(Namespace *symbol)
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{
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if (NamespaceBinding *binding = findNamespaceBinding(symbol->name())) {
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int index = 0;
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for (; index < binding->symbols.size(); ++index) {
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Namespace *ns = binding->symbols.at(index);
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if (ns == symbol)
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break;
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}
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if (index == binding->symbols.size())
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binding->symbols.append(symbol);
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return binding;
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}
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NamespaceBinding *binding = new NamespaceBinding(this);
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binding->symbols.append(symbol);
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if (! symbol->name()) {
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Q_ASSERT(! anonymousNamespaceBinding);
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anonymousNamespaceBinding = binding;
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}
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return binding;
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}
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static void closure(const Location &loc,
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NamespaceBinding *binding, const Name *name,
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QList<NamespaceBinding *> *bindings)
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{
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if (bindings->contains(binding))
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return;
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bindings->append(binding);
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Q_ASSERT(name->isNameId());
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const Identifier *id = name->asNameId()->identifier();
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bool ignoreUsingDirectives = false;
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foreach (Namespace *symbol, binding->symbols) {
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Scope *scope = symbol->members();
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for (Symbol *symbol = scope->lookat(id); symbol; symbol = symbol->next()) {
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if (symbol->name() != name || ! symbol->isNamespace())
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continue;
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const Location l(symbol);
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if (l.fileId() == loc.fileId() && l.sourceLocation() < loc.sourceLocation()) {
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ignoreUsingDirectives = true;
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break;
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}
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}
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}
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if (ignoreUsingDirectives)
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return;
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foreach (NamespaceBinding *u, binding->usings)
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closure(loc, u, name, bindings);
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}
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NamespaceBinding *NamespaceBinding::resolveNamespace(const Location &loc,
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const Name *name,
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bool lookAtParent)
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{
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if (! name)
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return 0;
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else if (const NameId *nameId = name->asNameId()) {
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QList<NamespaceBinding *> bindings;
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closure(loc, this, nameId, &bindings);
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QList<NamespaceBinding *> results;
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foreach (NamespaceBinding *binding, bindings) {
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if (NamespaceBinding *b = binding->findNamespaceBinding(nameId))
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results.append(b);
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}
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if (results.size() == 1)
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return results.at(0);
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else if (results.size() > 1) {
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// ### FIXME: return 0;
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return results.at(0);
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}
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else if (parent && lookAtParent)
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return parent->resolveNamespace(loc, name);
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} else if (const QualifiedNameId *q = name->asQualifiedNameId()) {
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if (q->nameCount() == 1) {
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Q_ASSERT(q->isGlobal());
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return globalNamespaceBinding()->resolveNamespace(loc, q->nameAt(0));
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}
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NamespaceBinding *current = this;
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if (q->isGlobal())
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current = globalNamespaceBinding();
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current = current->resolveNamespace(loc, q->nameAt(0));
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for (unsigned i = 1; current && i < q->nameCount(); ++i)
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current = current->resolveNamespace(loc, q->nameAt(i), false);
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return current;
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}
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return 0;
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}
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// ### rewrite me
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QByteArray NamespaceBinding::qualifiedId() const
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{
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if (! parent)
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return "<root>";
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QByteArray s;
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s.append(parent->qualifiedId());
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s.append("::");
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if (const Identifier *id = identifier())
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s.append(id->chars(), id->size());
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else
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s.append("<anonymous>");
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return s;
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}
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// ### rewrite me
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QByteArray ClassBinding::qualifiedId() const
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{
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QByteArray s = parent->qualifiedId();
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s += "::";
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if (const Identifier *id = identifier())
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s.append(id->chars(), id->size());
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else
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s.append("<anonymous>");
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return s;
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}
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Binding *ClassBinding::findClassOrNamespaceBinding(const Identifier *id, QSet<Binding *> *processed)
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{
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if (id->isEqualTo(identifier()))
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return this;
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if (processed->contains(this))
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return 0;
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processed->insert(this);
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foreach (ClassBinding *nestedClassBinding, children) {
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if (id->isEqualTo(nestedClassBinding->identifier()))
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return nestedClassBinding;
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}
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foreach (ClassBinding *baseClassBinding, baseClassBindings) {
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if (! baseClassBinding)
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continue;
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else if (Binding *b = baseClassBinding->findClassOrNamespaceBinding(id, processed))
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return b;
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}
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if (parent)
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return parent->findClassOrNamespaceBinding(id, processed);
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return 0;
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}
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ClassBinding *ClassBinding::findClassBinding(const Name *name, QSet<Binding *> *processed)
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{
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if (! name)
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return 0;
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if (processed->contains(this))
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return 0;
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processed->insert(this);
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if (const QualifiedNameId *q = name->asQualifiedNameId()) {
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Binding *currentBinding = this;
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for (unsigned i = 0; i < q->nameCount() - 1; ++i) {
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const Identifier *id = q->nameAt(i)->identifier();
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if (! id)
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return 0;
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Binding *classOrNamespaceBinding = currentBinding->findClassOrNamespaceBinding(id, processed);
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if (! classOrNamespaceBinding)
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return 0;
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currentBinding = classOrNamespaceBinding;
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}
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if (currentBinding)
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return currentBinding->findClassBinding(q->unqualifiedNameId(), processed);
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return 0;
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}
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if (const Identifier *id = name->identifier()) {
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if (id->isEqualTo(identifier()))
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return this;
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foreach (ClassBinding *nestedClassBinding, children) {
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if (const Identifier *nestedClassId = nestedClassBinding->identifier()) {
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if (nestedClassId->isEqualTo(id))
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return nestedClassBinding;
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}
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}
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if (parent)
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return parent->findClassBinding(name, processed);
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}
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return 0;
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}
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static int depth;
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void NamespaceBinding::dump()
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{
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qDebug() << QByteArray(depth, ' ').constData() << "namespace" << qualifiedId().constData()
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<< " # " << symbols.size();
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++depth;
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foreach (ClassBinding *classBinding, classBindings) {
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classBinding->dump();
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}
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foreach (NamespaceBinding *child, children) {
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child->dump();
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}
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--depth;
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}
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void ClassBinding::dump()
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{
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qDebug() << QByteArray(depth, ' ').constData() << "class" << qualifiedId().constData()
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<< " # " << symbols.size();
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++depth;
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foreach (ClassBinding *classBinding, children) {
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classBinding->dump();
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}
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--depth;
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}
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////////////////////////////////////////////////////////////////////////////////
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// ClassBinding
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////////////////////////////////////////////////////////////////////////////////
|
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ClassBinding::ClassBinding(NamespaceBinding *parent)
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: parent(parent)
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{
|
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parent->classBindings.append(this);
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}
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ClassBinding::ClassBinding(ClassBinding *parentClass)
|
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: parent(parentClass)
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{
|
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parentClass->children.append(this);
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}
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ClassBinding::~ClassBinding()
|
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{
|
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qDeleteAll(QList<ClassBinding *>(children));
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if (NamespaceBinding *nsBinding = parent->asNamespaceBinding())
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nsBinding->classBindings.removeAll(this);
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if (ClassBinding *classBinding = parent->asClassBinding())
|
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classBinding->children.removeAll(this);
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parent = 0;
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}
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const Name *ClassBinding::name() const
|
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{
|
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if (symbols.isEmpty())
|
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return 0;
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|
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return symbols.first()->name();
|
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}
|
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|
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const Identifier *ClassBinding::identifier() const
|
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{
|
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if (const Name *n = name())
|
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return n->identifier();
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|
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return 0;
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}
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|
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namespace {
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|
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////////////////////////////////////////////////////////////////////////////////
|
|
// Binder
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
class Binder: protected SymbolVisitor
|
|
{
|
|
public:
|
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Binder(NamespaceBinding *globals);
|
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virtual ~Binder();
|
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|
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NamespaceBinding *operator()(Document::Ptr doc, const Snapshot &snapshot)
|
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{
|
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namespaceBinding = _globals;
|
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const Snapshot previousSnapshot = _snapshot;
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|
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_snapshot = snapshot;
|
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(void) bind(doc);
|
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_snapshot = previousSnapshot;
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|
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return _globals;
|
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}
|
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|
|
Snapshot _snapshot;
|
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|
|
protected:
|
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NamespaceBinding *bind(Document::Ptr doc)
|
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{
|
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QSet<QString> processed;
|
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return bind(doc, &processed);
|
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}
|
|
|
|
NamespaceBinding *bind(Document::Ptr doc, QSet<QString> *processed)
|
|
{
|
|
if (processed->contains(doc->fileName()))
|
|
return 0;
|
|
|
|
processed->insert(doc->fileName());
|
|
|
|
foreach (const Document::Include &i, doc->includes()) {
|
|
if (Document::Ptr includedDoc = _snapshot.document(i.fileName())) {
|
|
/*NamepaceBinding *binding = */ bind(includedDoc, processed);
|
|
}
|
|
}
|
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|
|
Namespace *ns = doc->globalNamespace();
|
|
_globals->symbols.append(ns);
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|
|
for (unsigned i = 0; i < ns->memberCount(); ++i) {
|
|
(void) bind(ns->memberAt(i), _globals);
|
|
}
|
|
|
|
return _globals;
|
|
}
|
|
|
|
NamespaceBinding *bind(Symbol *symbol, NamespaceBinding *binding);
|
|
NamespaceBinding *findOrCreateNamespaceBinding(Namespace *symbol);
|
|
NamespaceBinding *resolveNamespace(const Location &loc, const Name *name);
|
|
|
|
NamespaceBinding *switchNamespaceBinding(NamespaceBinding *binding);
|
|
|
|
ClassBinding *findOrCreateClassBinding(Class *classSymbol);
|
|
ClassBinding *findClassBinding(const Name *name);
|
|
|
|
ClassBinding *switchClassBinding(ClassBinding *binding);
|
|
|
|
using SymbolVisitor::visit;
|
|
|
|
virtual bool visit(Namespace *);
|
|
virtual bool visit(UsingNamespaceDirective *);
|
|
virtual bool visit(Class *);
|
|
virtual bool visit(Function *);
|
|
virtual bool visit(Block *);
|
|
|
|
private:
|
|
NamespaceBinding *_globals;
|
|
NamespaceBinding *namespaceBinding;
|
|
ClassBinding *classBinding;
|
|
};
|
|
|
|
Binder::Binder(NamespaceBinding *globals)
|
|
: _globals(globals),
|
|
namespaceBinding(0),
|
|
classBinding(0)
|
|
{ }
|
|
|
|
Binder::~Binder()
|
|
{ }
|
|
|
|
NamespaceBinding *Binder::bind(Symbol *symbol, NamespaceBinding *binding)
|
|
{
|
|
NamespaceBinding *previousBinding = switchNamespaceBinding(binding);
|
|
accept(symbol);
|
|
return switchNamespaceBinding(previousBinding);
|
|
}
|
|
|
|
NamespaceBinding *Binder::findOrCreateNamespaceBinding(Namespace *symbol)
|
|
{ return namespaceBinding->findOrCreateNamespaceBinding(symbol); }
|
|
|
|
NamespaceBinding *Binder::resolveNamespace(const Location &loc, const Name *name)
|
|
{
|
|
if (! namespaceBinding)
|
|
return 0;
|
|
|
|
return namespaceBinding->resolveNamespace(loc, name);
|
|
}
|
|
|
|
NamespaceBinding *Binder::switchNamespaceBinding(NamespaceBinding *binding)
|
|
{
|
|
NamespaceBinding *previousBinding = namespaceBinding;
|
|
namespaceBinding = binding;
|
|
return previousBinding;
|
|
}
|
|
|
|
ClassBinding *Binder::findOrCreateClassBinding(Class *classSymbol)
|
|
{
|
|
// ### FINISH ME
|
|
ClassBinding *binding = 0;
|
|
|
|
if (classBinding)
|
|
binding = new ClassBinding(classBinding);
|
|
else
|
|
binding = new ClassBinding(namespaceBinding);
|
|
|
|
binding->symbols.append(classSymbol);
|
|
return binding;
|
|
}
|
|
|
|
ClassBinding *Binder::findClassBinding(const Name *name)
|
|
{
|
|
QSet<Binding *> processed;
|
|
|
|
if (classBinding) {
|
|
if (ClassBinding *k = classBinding->findClassBinding(name, &processed))
|
|
return k;
|
|
|
|
processed.clear();
|
|
}
|
|
|
|
if (namespaceBinding)
|
|
return namespaceBinding->findClassBinding(name, &processed);
|
|
|
|
return 0;
|
|
}
|
|
|
|
ClassBinding *Binder::switchClassBinding(ClassBinding *binding)
|
|
{
|
|
ClassBinding *previousClassBinding = classBinding;
|
|
classBinding = binding;
|
|
return previousClassBinding;
|
|
}
|
|
|
|
bool Binder::visit(Namespace *symbol)
|
|
{
|
|
NamespaceBinding *binding = findOrCreateNamespaceBinding(symbol);
|
|
|
|
for (unsigned i = 0; i < symbol->memberCount(); ++i) {
|
|
Symbol *member = symbol->memberAt(i);
|
|
|
|
bind(member, binding);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool Binder::visit(UsingNamespaceDirective *u)
|
|
{
|
|
NamespaceBinding *resolved = resolveNamespace(Location(u), u->name());
|
|
|
|
if (! resolved)
|
|
return false;
|
|
|
|
namespaceBinding->usings.append(resolved);
|
|
|
|
return false;
|
|
}
|
|
|
|
bool Binder::visit(Class *classSymbol)
|
|
{
|
|
ClassBinding *binding = findOrCreateClassBinding(classSymbol);
|
|
ClassBinding *previousClassBinding = switchClassBinding(binding);
|
|
|
|
for (unsigned i = 0; i < classSymbol->baseClassCount(); ++i) {
|
|
BaseClass *baseClass = classSymbol->baseClassAt(i);
|
|
ClassBinding *baseClassBinding = findClassBinding(baseClass->name());
|
|
binding->baseClassBindings.append(baseClassBinding);
|
|
}
|
|
|
|
for (unsigned i = 0; i < classSymbol->memberCount(); ++i)
|
|
accept(classSymbol->memberAt(i));
|
|
|
|
(void) switchClassBinding(previousClassBinding);
|
|
|
|
return false;
|
|
}
|
|
|
|
bool Binder::visit(Function *)
|
|
{ return false; }
|
|
|
|
bool Binder::visit(Block *)
|
|
{ return false; }
|
|
|
|
} // end of anonymous namespace
|
|
|
|
static NamespaceBinding *find_helper(Namespace *symbol, NamespaceBinding *binding,
|
|
QSet<NamespaceBinding *> *processed)
|
|
{
|
|
if (binding && ! processed->contains(binding)) {
|
|
processed->insert(binding);
|
|
|
|
if (binding->symbols.contains(symbol))
|
|
return binding;
|
|
|
|
foreach (NamespaceBinding *nestedBinding, binding->children) {
|
|
if (NamespaceBinding *ns = find_helper(symbol, nestedBinding, processed))
|
|
return ns;
|
|
}
|
|
|
|
if (NamespaceBinding *a = find_helper(symbol, binding->anonymousNamespaceBinding, processed))
|
|
return a;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ClassBinding *find_helper(Class *symbol, Binding *binding,
|
|
QSet<Binding *> *processed)
|
|
{
|
|
if (binding && ! processed->contains(binding)) {
|
|
processed->insert(binding);
|
|
|
|
if (NamespaceBinding *namespaceBinding = binding->asNamespaceBinding()) {
|
|
foreach (ClassBinding *classBinding, namespaceBinding->classBindings) {
|
|
if (ClassBinding *c = find_helper(symbol, classBinding, processed))
|
|
return c;
|
|
}
|
|
|
|
foreach (NamespaceBinding *nestedBinding, namespaceBinding->children) {
|
|
if (ClassBinding *c = find_helper(symbol, nestedBinding, processed))
|
|
return c;
|
|
}
|
|
|
|
if (ClassBinding *a = find_helper(symbol, namespaceBinding->anonymousNamespaceBinding, processed))
|
|
return a;
|
|
|
|
} else if (ClassBinding *classBinding = binding->asClassBinding()) {
|
|
foreach (Class *klass, classBinding->symbols) {
|
|
if (klass == symbol)
|
|
return classBinding;
|
|
}
|
|
|
|
foreach (ClassBinding *nestedClassBinding, classBinding->children) {
|
|
if (ClassBinding *c = find_helper(symbol, nestedClassBinding, processed))
|
|
return c;
|
|
}
|
|
|
|
#if 0 // ### FIXME
|
|
if (ClassBinding *a = find_helper(symbol, classBinding->anonymousClassBinding, processed))
|
|
return a;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
NamespaceBinding *NamespaceBinding::find(Namespace *symbol, NamespaceBinding *binding)
|
|
{
|
|
QSet<NamespaceBinding *> processed;
|
|
return find_helper(symbol, binding, &processed);
|
|
}
|
|
|
|
ClassBinding *NamespaceBinding::find(Class *symbol, NamespaceBinding *binding)
|
|
{
|
|
QSet<Binding *> processed;
|
|
return find_helper(symbol, binding, &processed);
|
|
}
|
|
|
|
NamespaceBindingPtr CPlusPlus::bind(Document::Ptr doc, Snapshot snapshot)
|
|
{
|
|
NamespaceBindingPtr global(new NamespaceBinding());
|
|
|
|
Binder bind(global.data());
|
|
bind(doc, snapshot);
|
|
return global;
|
|
}
|
|
|