C++: Moved completion/highlighting into the model manager.

This way the editor does not need to know all the details of
instantiating or maintaining classes for highlighting and/or completion,
it can just ask the model manager. The change also enables different
highlighting- or completion-engines without changes to the cppeditor.

Change-Id: I8000d9d9fe446b292defddb2295493cf77d0f14a
Reviewed-by: Leandro Melo <leandro.melo@nokia.com>

1 files changed, 0 insertions, 1110 deletions

diff --git a/src/plugins/cppeditor/cppchecksymbols.cpp b/src/plugins/cppeditor/cppchecksymbols.cpp
deleted file mode 100644
index a5749445a5..0000000000
--- a/src/plugins/cppeditor/cppchecksymbols.cpp
+++ /dev/null
@@ -1,1110 +0,0 @@
-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
-**
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-**
-** GNU Lesser General Public License Usage
-**
-** 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.
-**
-** Other Usage
-**
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**************************************************************************/
-
-#include "cppchecksymbols.h"
-#include "cpplocalsymbols.h"
-
-#include <cplusplus/Overview.h>
-
-#include <Names.h>
-#include <Literals.h>
-#include <Symbols.h>
-#include <TranslationUnit.h>
-#include <Scope.h>
-#include <AST.h>
-#include <SymbolVisitor.h>
-
-#include <utils/qtcassert.h>
-
-#include <QtCore/QCoreApplication>
-#include <QtCore/QThreadPool>
-#include <QtCore/QDebug>
-
-#include <qtconcurrent/runextensions.h>
-
-using namespace CPlusPlus;
-using namespace CppEditor::Internal;
-
-namespace {
-
-class FriendlyThread: public QThread
-{
-public:
-    using QThread::msleep;
-};
-
-class CollectSymbols: protected SymbolVisitor
-{
-    Document::Ptr _doc;
-    Snapshot _snapshot;
-    QSet<QByteArray> _types;
-    QSet<QByteArray> _members;
-    QSet<QByteArray> _virtualMethods;
-    QSet<QByteArray> _statics;
-    bool _mainDocument;
-
-public:
-    CollectSymbols(Document::Ptr doc, const Snapshot &snapshot)
-        : _doc(doc), _snapshot(snapshot), _mainDocument(false)
-    {
-        QSet<Namespace *> processed;
-        process(doc, &processed);
-    }
-
-    const QSet<QByteArray> &types() const
-    {
-        return _types;
-    }
-
-    const QSet<QByteArray> &members() const
-    {
-        return _members;
-    }
-
-    const QSet<QByteArray> &virtualMethods() const
-    {
-        return _virtualMethods;
-    }
-
-    const QSet<QByteArray> &statics() const
-    {
-        return _statics;
-    }
-
-protected:
-    void process(Document::Ptr doc, QSet<Namespace *> *processed)
-    {
-        if (! doc)
-            return;
-        else if (! processed->contains(doc->globalNamespace())) {
-            processed->insert(doc->globalNamespace());
-
-            foreach (const Document::Include &i, doc->includes())
-                process(_snapshot.document(i.fileName()), processed);
-
-            _mainDocument = (doc == _doc); // ### improve
-            accept(doc->globalNamespace());
-        }
-    }
-
-    void addType(const Identifier *id)
-    {
-        if (id)
-            _types.insert(QByteArray::fromRawData(id->chars(), id->size()));
-    }
-
-    void addType(const Name *name)
-    {
-        if (! name) {
-            return;
-
-        } else if (const QualifiedNameId *q = name->asQualifiedNameId()) {
-            addType(q->base());
-            addType(q->name());
-
-        } else if (name->isNameId() || name->isTemplateNameId()) {
-            addType(name->identifier());
-
-        }
-    }
-
-    void addMember(const Name *name)
-    {
-        if (! name) {
-            return;
-
-        } else if (name->isNameId()) {
-            const Identifier *id = name->identifier();
-            _members.insert(QByteArray::fromRawData(id->chars(), id->size()));
-
-        }
-    }
-
-    void addVirtualMethod(const Name *name)
-    {
-        if (! name) {
-            return;
-
-        } else if (name->isNameId()) {
-            const Identifier *id = name->identifier();
-            _virtualMethods.insert(QByteArray::fromRawData(id->chars(), id->size()));
-
-        }
-    }
-
-    void addStatic(const Name *name)
-    {
-        if (! name) {
-            return;
-
-        } else if (name->isNameId() || name->isTemplateNameId()) {
-            const Identifier *id = name->identifier();
-            _statics.insert(QByteArray::fromRawData(id->chars(), id->size()));
-
-        }
-    }
-
-    // nothing to do
-    virtual bool visit(UsingNamespaceDirective *) { return true; }
-    virtual bool visit(UsingDeclaration *) { return true; }
-    virtual bool visit(Argument *) { return true; }
-    virtual bool visit(BaseClass *) { return true; }
-
-    virtual bool visit(Function *symbol)
-    {
-        if (symbol->isVirtual())
-            addVirtualMethod(symbol->name());
-
-        return true;
-    }
-
-    virtual bool visit(Block *)
-    {
-        return true;
-    }
-
-    virtual bool visit(NamespaceAlias *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(Declaration *symbol)
-    {
-        if (symbol->enclosingEnum() != 0)
-            addStatic(symbol->name());
-
-        if (Function *funTy = symbol->type()->asFunctionType()) {
-            if (funTy->isVirtual())
-                addVirtualMethod(symbol->name());
-        }
-
-        if (symbol->isTypedef())
-            addType(symbol->name());
-        else if (! symbol->type()->isFunctionType() && symbol->enclosingScope()->isClass())
-            addMember(symbol->name());
-
-        return true;
-    }
-
-    virtual bool visit(TypenameArgument *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(Enum *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(Namespace *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(Template *)
-    {
-        return true;
-    }
-
-    virtual bool visit(Class *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(ForwardClassDeclaration *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    // Objective-C
-    virtual bool visit(ObjCBaseClass *) { return true; }
-    virtual bool visit(ObjCBaseProtocol *) { return true; }
-    virtual bool visit(ObjCPropertyDeclaration *) { return true; }
-    virtual bool visit(ObjCMethod *) { return true; }
-
-    virtual bool visit(ObjCClass *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(ObjCForwardClassDeclaration *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(ObjCProtocol *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-
-    virtual bool visit(ObjCForwardProtocolDeclaration *symbol)
-    {
-        addType(symbol->name());
-        return true;
-    }
-};
-
-} // end of anonymous namespace
-
-CheckSymbols::Future CheckSymbols::go(Document::Ptr doc, const LookupContext &context)
-{
-    QTC_ASSERT(doc, return Future());
-
-    return (new CheckSymbols(doc, context))->start();
-}
-
-CheckSymbols::CheckSymbols(Document::Ptr doc, const LookupContext &context)
-    : ASTVisitor(doc->translationUnit()), _doc(doc), _context(context)
-    , _lineOfLastUsage(0)
-{
-    CollectSymbols collectTypes(doc, context.snapshot());
-
-    _fileName = doc->fileName();
-    _potentialTypes = collectTypes.types();
-    _potentialMembers = collectTypes.members();
-    _potentialVirtualMethods = collectTypes.virtualMethods();
-    _potentialStatics = collectTypes.statics();
-
-    typeOfExpression.init(_doc, _context.snapshot(), _context.bindings());
-}
-
-CheckSymbols::~CheckSymbols()
-{ }
-
-void CheckSymbols::run()
-{
-    _diagnosticMessages.clear();
-
-    if (! isCanceled()) {
-        if (_doc->translationUnit()) {
-            accept(_doc->translationUnit()->ast());
-            flush();
-        }
-    }
-
-    reportFinished();
-}
-
-bool CheckSymbols::warning(unsigned line, unsigned column, const QString &text, unsigned length)
-{
-    Document::DiagnosticMessage m(Document::DiagnosticMessage::Warning, _fileName, line, column, text, length);
-    _diagnosticMessages.append(m);
-    return false;
-}
-
-bool CheckSymbols::warning(AST *ast, const QString &text)
-{
-    const Token &firstToken = tokenAt(ast->firstToken());
-    const Token &lastToken = tokenAt(ast->lastToken() - 1);
-
-    const unsigned length = lastToken.end() - firstToken.begin();
-    unsigned line = 1, column = 1;
-    getTokenStartPosition(ast->firstToken(), &line, &column);
-
-    warning(line, column, text, length);
-    return false;
-}
-
-FunctionDefinitionAST *CheckSymbols::enclosingFunctionDefinition(bool skipTopOfStack) const
-{
-    int index = _astStack.size() - 1;
-    if (skipTopOfStack && !_astStack.isEmpty())
-        --index;
-    for (; index != -1; --index) {
-        AST *ast = _astStack.at(index);
-
-        if (FunctionDefinitionAST *funDef = ast->asFunctionDefinition())
-            return funDef;
-    }
-
-    return 0;
-}
-
-TemplateDeclarationAST *CheckSymbols::enclosingTemplateDeclaration() const
-{
-    for (int index = _astStack.size() - 1; index != -1; --index) {
-        AST *ast = _astStack.at(index);
-
-        if (TemplateDeclarationAST *funDef = ast->asTemplateDeclaration())
-            return funDef;
-    }
-
-    return 0;
-}
-
-Scope *CheckSymbols::enclosingScope() const
-{
-    for (int index = _astStack.size() - 1; index != -1; --index) {
-        AST *ast = _astStack.at(index);
-
-        if (NamespaceAST *ns = ast->asNamespace()) {
-            if (ns->symbol)
-                return ns->symbol;
-
-        } else if (ClassSpecifierAST *classSpec = ast->asClassSpecifier()) {
-            if (classSpec->symbol)
-                return classSpec->symbol;
-
-        } else if (FunctionDefinitionAST *funDef = ast->asFunctionDefinition()) {
-            if (funDef->symbol)
-                return funDef->symbol;
-
-        } else if (CompoundStatementAST *blockStmt = ast->asCompoundStatement()) {
-            if (blockStmt->symbol)
-                return blockStmt->symbol;
-
-        } else if (IfStatementAST *ifStmt = ast->asIfStatement()) {
-            if (ifStmt->symbol)
-                return ifStmt->symbol;
-
-        } else if (WhileStatementAST *whileStmt = ast->asWhileStatement()) {
-            if (whileStmt->symbol)
-                return whileStmt->symbol;
-
-        } else if (ForStatementAST *forStmt = ast->asForStatement()) {
-            if (forStmt->symbol)
-                return forStmt->symbol;
-
-        } else if (ForeachStatementAST *foreachStmt = ast->asForeachStatement()) {
-            if (foreachStmt->symbol)
-                return foreachStmt->symbol;
-
-        } else if (SwitchStatementAST *switchStmt = ast->asSwitchStatement()) {
-            if (switchStmt->symbol)
-                return switchStmt->symbol;
-
-        } else if (CatchClauseAST *catchClause = ast->asCatchClause()) {
-            if (catchClause->symbol)
-                return catchClause->symbol;
-
-        }
-    }
-
-    return _doc->globalNamespace();
-}
-
-bool CheckSymbols::preVisit(AST *ast)
-{
-    _astStack.append(ast);
-
-    if (isCanceled())
-        return false;
-
-    return true;
-}
-
-void CheckSymbols::postVisit(AST *)
-{
-    _astStack.takeLast();
-}
-
-bool CheckSymbols::visit(NamespaceAST *ast)
-{
-    if (ast->identifier_token) {
-        const Token &tok = tokenAt(ast->identifier_token);
-        if (! tok.generated()) {
-            unsigned line, column;
-            getTokenStartPosition(ast->identifier_token, &line, &column);
-            Use use(line, column, tok.length(), SemanticInfo::TypeUse);
-            addUse(use);
-        }
-    }
-
-    return true;
-}
-
-bool CheckSymbols::visit(UsingDirectiveAST *)
-{
-    return true;
-}
-
-bool CheckSymbols::visit(EnumeratorAST *ast)
-{
-    addUse(ast->identifier_token, SemanticInfo::StaticUse);
-    return true;
-}
-
-bool CheckSymbols::visit(SimpleDeclarationAST *ast)
-{
-    if (ast->declarator_list && !ast->declarator_list->next) {
-        if (ast->symbols && ! ast->symbols->next && !ast->symbols->value->isGenerated()) {
-            Symbol *decl = ast->symbols->value;
-            if (NameAST *declId = declaratorId(ast->declarator_list->value)) {
-                if (Function *funTy = decl->type()->asFunctionType()) {
-                    if (funTy->isVirtual()) {
-                        addUse(declId, SemanticInfo::VirtualMethodUse);
-                    } else if (maybeVirtualMethod(decl->name())) {
-                        addVirtualMethod(_context.lookup(decl->name(), decl->enclosingScope()), declId, funTy->argumentCount());
-                    }
-                }
-            }
-        }
-    }
-
-    return true;
-}
-
-bool CheckSymbols::visit(NamedTypeSpecifierAST *)
-{
-    return true;
-}
-
-bool CheckSymbols::visit(ElaboratedTypeSpecifierAST *ast)
-{
-    accept(ast->attribute_list);
-    accept(ast->name);
-    addUse(ast->name, SemanticInfo::TypeUse);
-    return false;
-}
-
-bool CheckSymbols::visit(MemberAccessAST *ast)
-{
-    accept(ast->base_expression);
-    if (! ast->member_name)
-        return false;
-
-    if (const Name *name = ast->member_name->name) {
-        if (const Identifier *ident = name->identifier()) {
-            const QByteArray id = QByteArray::fromRawData(ident->chars(), ident->size());
-            if (_potentialMembers.contains(id)) {
-                const Token start = tokenAt(ast->firstToken());
-                const Token end = tokenAt(ast->lastToken() - 1);
-                const QByteArray expression = _doc->utf8Source().mid(start.begin(), end.end() - start.begin());
-
-                const QList<LookupItem> candidates =
-                    typeOfExpression(expression, enclosingScope(), TypeOfExpression::Preprocess);
-                addClassMember(candidates, ast->member_name);
-            }
-        }
-    }
-
-    return false;
-}
-
-bool CheckSymbols::visit(CallAST *ast)
-{
-    if (ast->base_expression) {
-        accept(ast->base_expression);
-
-        unsigned argumentCount = 0;
-
-        for (ExpressionListAST *it = ast->expression_list; it; it = it->next)
-            ++argumentCount;
-
-        if (MemberAccessAST *access = ast->base_expression->asMemberAccess()) {
-            if (access->member_name && access->member_name->name) {
-                if (maybeVirtualMethod(access->member_name->name)) {
-                    const QByteArray expression = textOf(access);
-
-                    const QList<LookupItem> candidates =
-                        typeOfExpression(expression, enclosingScope(),
-                                         TypeOfExpression::Preprocess);
-
-                    NameAST *memberName = access->member_name;
-                    if (QualifiedNameAST *q = memberName->asQualifiedName())
-                        memberName = q->unqualified_name;
-
-                    addVirtualMethod(candidates, memberName, argumentCount);
-                }
-            }
-        } else if (IdExpressionAST *idExpr = ast->base_expression->asIdExpression()) {
-            if (const Name *name = idExpr->name->name) {
-                if (maybeVirtualMethod(name)) {
-                    NameAST *exprName = idExpr->name;
-                    if (QualifiedNameAST *q = exprName->asQualifiedName())
-                        exprName = q->unqualified_name;
-
-                    const QList<LookupItem> candidates =
-                        typeOfExpression(textOf(idExpr), enclosingScope(),
-                                         TypeOfExpression::Preprocess);
-                    addVirtualMethod(candidates, exprName, argumentCount);
-                }
-            }
-        }
-
-        accept(ast->expression_list);
-    }
-
-    return false;
-}
-
-QByteArray CheckSymbols::textOf(AST *ast) const
-{
-    const Token start = tokenAt(ast->firstToken());
-    const Token end = tokenAt(ast->lastToken() - 1);
-    const QByteArray text = _doc->utf8Source().mid(start.begin(), end.end() - start.begin());
-    return text;
-}
-
-void CheckSymbols::checkNamespace(NameAST *name)
-{
-    if (! name)
-        return;
-
-    unsigned line, column;
-    getTokenStartPosition(name->firstToken(), &line, &column);
-
-    if (ClassOrNamespace *b = _context.lookupType(name->name, enclosingScope())) {
-        foreach (Symbol *s, b->symbols()) {
-            if (s->isNamespace())
-                return;
-        }
-    }
-
-    const unsigned length = tokenAt(name->lastToken() - 1).end() - tokenAt(name->firstToken()).begin();
-    warning(line, column, QCoreApplication::translate("CheckUndefinedSymbols", "Expected a namespace-name"), length);
-}
-
-bool CheckSymbols::hasVirtualDestructor(Class *klass) const
-{
-    if (! klass)
-        return false;
-    const Identifier *id = klass->identifier();
-    if (! id)
-        return false;
-    for (Symbol *s = klass->find(id); s; s = s->next()) {
-        if (! s->name())
-            continue;
-        else if (s->name()->isDestructorNameId()) {
-            if (Function *funTy = s->type()->asFunctionType()) {
-                if (funTy->isVirtual() && id->isEqualTo(s->identifier()))
-                    return true;
-            }
-        }
-    }
-    return false;
-}
-
-bool CheckSymbols::hasVirtualDestructor(ClassOrNamespace *binding) const
-{
-    QSet<ClassOrNamespace *> processed;
-    QList<ClassOrNamespace *> todo;
-    todo.append(binding);
-
-    while (! todo.isEmpty()) {
-        ClassOrNamespace *b = todo.takeFirst();
-        if (b && ! processed.contains(b)) {
-            processed.insert(b);
-            foreach (Symbol *s, b->symbols()) {
-                if (Class *k = s->asClass()) {
-                    if (hasVirtualDestructor(k))
-                        return true;
-                }
-            }
-
-            todo += b->usings();
-        }
-    }
-
-    return false;
-}
-
-void CheckSymbols::checkName(NameAST *ast, Scope *scope)
-{
-    if (ast && ast->name) {
-        if (! scope)
-            scope = enclosingScope();
-
-        if (ast->asDestructorName() != 0) {
-            Class *klass = scope->asClass();
-            if (hasVirtualDestructor(_context.lookupType(klass)))
-                addUse(ast, SemanticInfo::VirtualMethodUse);
-        } else if (maybeType(ast->name) || maybeStatic(ast->name)) {
-            const QList<LookupItem> candidates = _context.lookup(ast->name, scope);
-            addTypeOrStatic(candidates, ast);
-        } else if (maybeMember(ast->name)) {
-            const QList<LookupItem> candidates = _context.lookup(ast->name, scope);
-            addClassMember(candidates, ast);
-        }
-    }
-}
-
-bool CheckSymbols::visit(SimpleNameAST *ast)
-{
-    checkName(ast);
-    return true;
-}
-
-bool CheckSymbols::visit(TemplateIdAST *ast)
-{
-    checkName(ast);
-    return true;
-}
-
-bool CheckSymbols::visit(DestructorNameAST *ast)
-{
-    checkName(ast);
-    return true;
-}
-
-bool CheckSymbols::visit(QualifiedNameAST *ast)
-{
-    if (ast->name) {
-        ClassOrNamespace *binding = 0;
-        if (NestedNameSpecifierListAST *it = ast->nested_name_specifier_list) {
-            NestedNameSpecifierAST *nested_name_specifier = it->value;
-            if (NameAST *class_or_namespace_name = nested_name_specifier->class_or_namespace_name) { // ### remove shadowing
-
-                if (TemplateIdAST *template_id = class_or_namespace_name->asTemplateId())
-                    accept(template_id->template_argument_list);
-
-                const Name *name = class_or_namespace_name->name;
-                binding = _context.lookupType(name, enclosingScope());
-                addType(binding, class_or_namespace_name);
-
-                for (it = it->next; it; it = it->next) {
-                    NestedNameSpecifierAST *nested_name_specifier = it->value;
-
-                    if (NameAST *class_or_namespace_name = nested_name_specifier->class_or_namespace_name) {
-                        if (TemplateIdAST *template_id = class_or_namespace_name->asTemplateId()) {
-                            if (template_id->template_token) {
-                                addUse(template_id, SemanticInfo::TypeUse);
-                                binding = 0; // there's no way we can find a binding.
-                            }
-
-                            accept(template_id->template_argument_list);
-                            if (! binding)
-                                continue;
-                        }
-
-                        if (binding) {
-                            binding = binding->findType(class_or_namespace_name->name);
-                            addType(binding, class_or_namespace_name);
-                        }
-                    }
-                }
-            }
-        }
-
-        if (binding && ast->unqualified_name) {
-            if (ast->unqualified_name->asDestructorName() != 0) {
-                if (hasVirtualDestructor(binding))
-                    addUse(ast->unqualified_name, SemanticInfo::VirtualMethodUse);
-            } else {
-                addTypeOrStatic(binding->find(ast->unqualified_name->name), ast->unqualified_name);
-            }
-
-            if (TemplateIdAST *template_id = ast->unqualified_name->asTemplateId())
-                accept(template_id->template_argument_list);
-        }
-    }
-
-    return false;
-}
-
-bool CheckSymbols::visit(TypenameTypeParameterAST *ast)
-{
-    addUse(ast->name, SemanticInfo::TypeUse);
-    accept(ast->type_id);
-    return false;
-}
-
-bool CheckSymbols::visit(TemplateTypeParameterAST *ast)
-{
-    accept(ast->template_parameter_list);
-    addUse(ast->name, SemanticInfo::TypeUse);
-    accept(ast->type_id);
-    return false;
-}
-
-bool CheckSymbols::visit(MemInitializerAST *ast)
-{
-    if (FunctionDefinitionAST *enclosingFunction = enclosingFunctionDefinition()) {
-        if (ast->name && enclosingFunction->symbol) {
-            if (ClassOrNamespace *binding = _context.lookupType(enclosingFunction->symbol)) {
-                foreach (Symbol *s, binding->symbols()) {
-                    if (Class *klass = s->asClass()){
-                        checkName(ast->name, klass);
-                        break;
-                    }
-                }
-            }
-        }
-
-        accept(ast->expression_list);
-    }
-
-    return false;
-}
-
-bool CheckSymbols::visit(FunctionDefinitionAST *ast)
-{
-    AST *thisFunction = _astStack.takeLast();
-    accept(ast->decl_specifier_list);
-    _astStack.append(thisFunction);
-
-    if (ast->declarator && ast->symbol && ! ast->symbol->isGenerated()) {
-        Function *fun = ast->symbol;
-        if (NameAST *declId = declaratorId(ast->declarator)) {
-            if (QualifiedNameAST *q = declId->asQualifiedName())
-                declId = q->unqualified_name;
-
-            if (fun->isVirtual()) {
-                addUse(declId, SemanticInfo::VirtualMethodUse);
-            } else if (maybeVirtualMethod(fun->name())) {
-                addVirtualMethod(_context.lookup(fun->name(), fun->enclosingScope()), declId, fun->argumentCount());
-            }
-        }
-    }
-
-    accept(ast->declarator);
-    accept(ast->ctor_initializer);
-    accept(ast->function_body);
-
-    const LocalSymbols locals(_doc, ast);
-    foreach (const QList<SemanticInfo::Use> &uses, locals.uses) {
-        foreach (const SemanticInfo::Use &u, uses)
-            addUse(u);
-    }
-
-    if (!enclosingFunctionDefinition(true))
-        flush();
-
-    return false;
-}
-
-void CheckSymbols::addUse(NameAST *ast, UseKind kind)
-{
-    if (! ast)
-        return;
-
-    if (QualifiedNameAST *q = ast->asQualifiedName())
-        ast = q->unqualified_name;
-
-    if (! ast)
-        return; // nothing to do
-    else if (ast->asOperatorFunctionId() != 0 || ast->asConversionFunctionId() != 0)
-        return; // nothing to do
-
-    unsigned startToken = ast->firstToken();
-
-    if (DestructorNameAST *dtor = ast->asDestructorName())
-        startToken = dtor->identifier_token;
-
-    else if (TemplateIdAST *templ = ast->asTemplateId())
-        startToken = templ->identifier_token;
-
-    addUse(startToken, kind);
-}
-
-void CheckSymbols::addUse(unsigned tokenIndex, UseKind kind)
-{
-    if (! tokenIndex)
-        return;
-
-    const Token &tok = tokenAt(tokenIndex);
-    if (tok.generated())
-        return;
-
-    unsigned line, column;
-    getTokenStartPosition(tokenIndex, &line, &column);
-    const unsigned length = tok.length();
-
-    const Use use(line, column, length, kind);
-    addUse(use);
-}
-
-static const int chunkSize = 50;
-
-void CheckSymbols::addUse(const Use &use)
-{
-    if (!use.line)
-        return;
-
-    if (! enclosingFunctionDefinition()) {
-        if (_usages.size() >= chunkSize) {
-            if (use.line > _lineOfLastUsage)
-                flush();
-        }
-    }
-
-    _lineOfLastUsage = qMax(_lineOfLastUsage, use.line);
-    _usages.append(use);
-}
-
-void CheckSymbols::addType(ClassOrNamespace *b, NameAST *ast)
-{
-    if (! b)
-        return;
-
-    unsigned startToken = ast->firstToken();
-    if (DestructorNameAST *dtor = ast->asDestructorName())
-        startToken = dtor->identifier_token;
-
-    const Token &tok = tokenAt(startToken);
-    if (tok.generated())
-        return;
-
-    unsigned line, column;
-    getTokenStartPosition(startToken, &line, &column);
-    const unsigned length = tok.length();
-    const Use use(line, column, length, SemanticInfo::TypeUse);
-    addUse(use);
-    //qDebug() << "added use" << oo(ast->name) << line << column << length;
-}
-
-bool CheckSymbols::isTemplateClass(Symbol *symbol) const
-{
-    if (symbol) {
-        if (Template *templ = symbol->asTemplate()) {
-            if (Symbol *declaration = templ->declaration()) {
-                if (declaration->isClass() || declaration->isForwardClassDeclaration())
-                    return true;
-            }
-        }
-    }
-    return false;
-}
-
-void CheckSymbols::addTypeOrStatic(const QList<LookupItem> &candidates, NameAST *ast)
-{
-    unsigned startToken = ast->firstToken();
-    if (DestructorNameAST *dtor = ast->asDestructorName())
-        startToken = dtor->identifier_token;
-
-    const Token &tok = tokenAt(startToken);
-    if (tok.generated())
-        return;
-
-    foreach (const LookupItem &r, candidates) {
-        Symbol *c = r.declaration();
-        if (c->isUsingDeclaration()) // skip using declarations...
-            continue;
-        else if (c->isUsingNamespaceDirective()) // ... and using namespace directives.
-            continue;
-        else if (c->isTypedef() || c->isNamespace() ||
-                 c->isClass() || c->isEnum() || isTemplateClass(c) ||
-                 c->isForwardClassDeclaration() || c->isTypenameArgument() || c->enclosingEnum() != 0) {
-
-            unsigned line, column;
-            getTokenStartPosition(startToken, &line, &column);
-            const unsigned length = tok.length();
-
-            UseKind kind = SemanticInfo::TypeUse;
-
-            if (c->enclosingEnum() != 0)
-                kind = SemanticInfo::StaticUse;
-
-            const Use use(line, column, length, kind);
-            addUse(use);
-            //qDebug() << "added use" << oo(ast->name) << line << column << length;
-            break;
-        }
-    }
-}
-
-void CheckSymbols::addClassMember(const QList<LookupItem> &candidates, NameAST *ast)
-{
-    unsigned startToken = ast->firstToken();
-    if (DestructorNameAST *dtor = ast->asDestructorName())
-        startToken = dtor->identifier_token;
-
-    const Token &tok = tokenAt(startToken);
-    if (tok.generated())
-        return;
-
-    foreach (const LookupItem &r, candidates) {
-        Symbol *c = r.declaration();
-        if (! c)
-            continue;
-        else if (! c->isDeclaration())
-            return;
-        else if (! (c->enclosingScope() && c->enclosingScope()->isClass()))
-            return; // shadowed
-        else if (c->isTypedef() || c->type()->isFunctionType())
-            return; // shadowed
-
-        unsigned line, column;
-        getTokenStartPosition(startToken, &line, &column);
-        const unsigned length = tok.length();
-
-        const Use use(line, column, length, SemanticInfo::FieldUse);
-        addUse(use);
-        break;
-    }
-}
-
-void CheckSymbols::addStatic(const QList<LookupItem> &candidates, NameAST *ast)
-{
-    if (ast->asDestructorName() != 0)
-        return;
-
-    unsigned startToken = ast->firstToken();
-    const Token &tok = tokenAt(startToken);
-    if (tok.generated())
-        return;
-
-    foreach (const LookupItem &r, candidates) {
-        Symbol *c = r.declaration();
-        if (! c)
-            return;
-        if (c->enclosingScope()->isEnum()) {
-            unsigned line, column;
-            getTokenStartPosition(startToken, &line, &column);
-            const unsigned length = tok.length();
-
-            const Use use(line, column, length, SemanticInfo::StaticUse);
-            addUse(use);
-            //qDebug() << "added use" << oo(ast->name) << line << column << length;
-            break;
-        }
-    }
-}
-
-void CheckSymbols::addVirtualMethod(const QList<LookupItem> &candidates, NameAST *ast, unsigned argumentCount)
-{
-    unsigned startToken = ast->firstToken();
-    if (DestructorNameAST *dtor = ast->asDestructorName())
-        startToken = dtor->identifier_token;
-
-    const Token &tok = tokenAt(startToken);
-    if (tok.generated())
-        return;
-
-    foreach (const LookupItem &r, candidates) {
-        Symbol *c = r.declaration();
-        if (! c)
-            continue;
-
-        Function *funTy = r.type()->asFunctionType();
-        if (! funTy)
-            continue;
-        if (! funTy->isVirtual())
-            continue;
-        else if (argumentCount < funTy->minimumArgumentCount())
-            continue;
-        else if (argumentCount > funTy->argumentCount()) {
-            if (! funTy->isVariadic())
-                continue;
-        }
-
-        unsigned line, column;
-        getTokenStartPosition(startToken, &line, &column);
-        const unsigned length = tok.length();
-
-        const Use use(line, column, length, SemanticInfo::VirtualMethodUse);
-        addUse(use);
-        break;
-    }
-}
-
-NameAST *CheckSymbols::declaratorId(DeclaratorAST *ast) const
-{
-    if (ast && ast->core_declarator) {
-        if (NestedDeclaratorAST *nested = ast->core_declarator->asNestedDeclarator())
-            return declaratorId(nested->declarator);
-        else if (DeclaratorIdAST *declId = ast->core_declarator->asDeclaratorId()) {
-            return declId->name;
-        }
-    }
-
-    return 0;
-}
-
-bool CheckSymbols::maybeType(const Name *name) const
-{
-    if (name) {
-        if (const Identifier *ident = name->identifier()) {
-            const QByteArray id = QByteArray::fromRawData(ident->chars(), ident->size());
-            if (_potentialTypes.contains(id))
-                return true;
-        }
-    }
-
-    return false;
-}
-
-bool CheckSymbols::maybeMember(const Name *name) const
-{
-    if (name) {
-        if (const Identifier *ident = name->identifier()) {
-            const QByteArray id = QByteArray::fromRawData(ident->chars(), ident->size());
-            if (_potentialMembers.contains(id))
-                return true;
-        }
-    }
-
-    return false;
-}
-
-bool CheckSymbols::maybeStatic(const Name *name) const
-{
-    if (name) {
-        if (const Identifier *ident = name->identifier()) {
-            const QByteArray id = QByteArray::fromRawData(ident->chars(), ident->size());
-            if (_potentialStatics.contains(id))
-                return true;
-        }
-    }
-
-    return false;
-}
-
-bool CheckSymbols::maybeVirtualMethod(const Name *name) const
-{
-    if (name) {
-        if (const Identifier *ident = name->identifier()) {
-            const QByteArray id = QByteArray::fromRawData(ident->chars(), ident->size());
-            if (_potentialVirtualMethods.contains(id))
-                return true;
-        }
-    }
-
-    return false;
-}
-
-static bool sortByLinePredicate(const CheckSymbols::Use &lhs, const CheckSymbols::Use &rhs)
-{
-    return lhs.line < rhs.line;
-}
-
-void CheckSymbols::flush()
-{
-    _lineOfLastUsage = 0;
-
-    if (_usages.isEmpty())
-        return;
-
-    qSort(_usages.begin(), _usages.end(), sortByLinePredicate);
-    reportResults(_usages);
-    _usages.clear();
-    _usages.reserve(chunkSize);
-}