forked from qt-creator/qt-creator
138066792e
For a given AST, CppRefactoringFile and Overview this will create a ChangeSet for rewriting the pointer or reference declaration according to the Overview. Task-number: QTCREATORBUG-6169 Change-Id: If6f824c1ea5e9f53a11a58ec8b6d696d01f0723e Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
741 lines
19 KiB
C++
741 lines
19 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the 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 Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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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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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "CppDocument.h"
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#include "FastPreprocessor.h"
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#include "LookupContext.h"
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#include "Overview.h"
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#include "Bind.h"
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#include <Control.h>
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#include <TranslationUnit.h>
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#include <DiagnosticClient.h>
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#include <Literals.h>
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#include <Symbols.h>
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#include <Names.h>
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#include <AST.h>
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#include <ASTPatternBuilder.h>
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#include <ASTMatcher.h>
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#include <Scope.h>
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#include <SymbolVisitor.h>
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#include <NameVisitor.h>
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#include <TypeVisitor.h>
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#include <CoreTypes.h>
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#include <LookupContext.h>
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#include <QByteArray>
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#include <QBitArray>
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#include <QDir>
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#include <QDebug>
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/*!
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\namespace CPlusPlus
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The namespace for C++ related tools.
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*/
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using namespace CPlusPlus;
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namespace {
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class LastVisibleSymbolAt: protected SymbolVisitor
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{
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Symbol *root;
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unsigned line;
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unsigned column;
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Symbol *symbol;
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public:
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LastVisibleSymbolAt(Symbol *root)
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: root(root), line(0), column(0), symbol(0) {}
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Symbol *operator()(unsigned line, unsigned column)
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{
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this->line = line;
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this->column = column;
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this->symbol = 0;
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accept(root);
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if (! symbol)
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symbol = root;
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return symbol;
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}
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protected:
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bool preVisit(Symbol *s)
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{
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if (s->asBlock()) {
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if (s->line() < line || (s->line() == line && s->column() <= column))
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return true;
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// skip blocks
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} if (s->line() < line || (s->line() == line && s->column() <= column)) {
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symbol = s;
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return true;
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}
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return false;
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}
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};
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class FindScopeAt: protected SymbolVisitor
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{
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TranslationUnit *_unit;
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unsigned _line;
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unsigned _column;
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Scope *_scope;
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public:
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/** line and column should be 1-based */
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FindScopeAt(TranslationUnit *unit, unsigned line, unsigned column)
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: _unit(unit), _line(line), _column(column), _scope(0) {}
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Scope *operator()(Symbol *symbol)
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{
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accept(symbol);
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return _scope;
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}
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protected:
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bool process(Scope *symbol)
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{
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if (! _scope) {
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Scope *scope = symbol;
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for (unsigned i = 0; i < scope->memberCount(); ++i) {
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accept(scope->memberAt(i));
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if (_scope)
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return false;
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}
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unsigned startLine, startColumn;
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_unit->getPosition(scope->startOffset(), &startLine, &startColumn);
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if (_line > startLine || (_line == startLine && _column >= startColumn)) {
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unsigned endLine, endColumn;
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_unit->getPosition(scope->endOffset(), &endLine, &endColumn);
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if (_line < endLine || (_line == endLine && _column < endColumn))
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_scope = scope;
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}
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}
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return false;
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}
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using SymbolVisitor::visit;
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virtual bool preVisit(Symbol *)
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{ return ! _scope; }
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virtual bool visit(UsingNamespaceDirective *) { return false; }
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virtual bool visit(UsingDeclaration *) { return false; }
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virtual bool visit(NamespaceAlias *) { return false; }
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virtual bool visit(Declaration *) { return false; }
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virtual bool visit(Argument *) { return false; }
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virtual bool visit(TypenameArgument *) { return false; }
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virtual bool visit(BaseClass *) { return false; }
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virtual bool visit(ForwardClassDeclaration *) { return false; }
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virtual bool visit(Enum *symbol)
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{ return process(symbol); }
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virtual bool visit(Function *symbol)
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{ return process(symbol); }
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virtual bool visit(Namespace *symbol)
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{ return process(symbol); }
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virtual bool visit(Class *symbol)
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{ return process(symbol); }
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virtual bool visit(Block *symbol)
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{ return process(symbol); }
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// Objective-C
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virtual bool visit(ObjCBaseClass *) { return false; }
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virtual bool visit(ObjCBaseProtocol *) { return false; }
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virtual bool visit(ObjCForwardClassDeclaration *) { return false; }
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virtual bool visit(ObjCForwardProtocolDeclaration *) { return false; }
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virtual bool visit(ObjCPropertyDeclaration *) { return false; }
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virtual bool visit(ObjCClass *symbol)
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{ return process(symbol); }
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virtual bool visit(ObjCProtocol *symbol)
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{ return process(symbol); }
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virtual bool visit(ObjCMethod *symbol)
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{ return process(symbol); }
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};
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#define DO_NOT_DUMP_ALL_PARSER_ERRORS
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class DocumentDiagnosticClient : public DiagnosticClient
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{
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enum { MAX_MESSAGE_COUNT = 10 };
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public:
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DocumentDiagnosticClient(Document *doc, QList<Document::DiagnosticMessage> *messages)
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: doc(doc),
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messages(messages),
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errorCount(0)
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{ }
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virtual void report(int level,
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const StringLiteral *fileId,
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unsigned line, unsigned column,
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const char *format, va_list ap)
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{
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if (level == Error) {
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++errorCount;
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#ifdef DO_NOT_DUMP_ALL_PARSER_ERRORS
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if (errorCount >= MAX_MESSAGE_COUNT)
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return; // ignore the error
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#endif // DO_NOT_DUMP_ALL_PARSER_ERRORS
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}
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const QString fileName = QString::fromUtf8(fileId->chars(), fileId->size());
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if (fileName != doc->fileName())
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return;
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QString message;
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message.vsprintf(format, ap);
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#ifndef DO_NOT_DUMP_ALL_PARSER_ERRORS
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{
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const char *levelStr = "Unknown level";
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if (level == Document::DiagnosticMessage::Warning) levelStr = "Warning";
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if (level == Document::DiagnosticMessage::Error) levelStr = "Error";
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if (level == Document::DiagnosticMessage::Fatal) levelStr = "Fatal";
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qDebug("%s:%u:%u: %s: %s", fileId->chars(), line, column, levelStr, message.toUtf8().constData());
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}
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#endif // DO_NOT_DUMP_ALL_PARSER_ERRORS
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Document::DiagnosticMessage m(convertLevel(level), doc->fileName(),
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line, column, message);
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messages->append(m);
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}
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static int convertLevel(int level) {
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switch (level) {
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case Warning: return Document::DiagnosticMessage::Warning;
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case Error: return Document::DiagnosticMessage::Error;
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case Fatal: return Document::DiagnosticMessage::Fatal;
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default: return Document::DiagnosticMessage::Error;
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}
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}
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private:
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Document *doc;
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QList<Document::DiagnosticMessage> *messages;
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int errorCount;
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};
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} // anonymous namespace
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Document::Document(const QString &fileName)
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: _fileName(QDir::cleanPath(fileName)),
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_globalNamespace(0),
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_revision(0),
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_editorRevision(0),
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_checkMode(0)
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{
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_control = new Control();
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_control->setDiagnosticClient(new DocumentDiagnosticClient(this, &_diagnosticMessages));
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const QByteArray localFileName = fileName.toUtf8();
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const StringLiteral *fileId = _control->stringLiteral(localFileName.constData(),
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localFileName.size());
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_translationUnit = new TranslationUnit(_control, fileId);
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_translationUnit->setQtMocRunEnabled(true);
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_translationUnit->setCxxOxEnabled(true);
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_translationUnit->setObjCEnabled(true);
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(void) _control->switchTranslationUnit(_translationUnit);
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}
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Document::~Document()
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{
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delete _translationUnit;
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delete _control->diagnosticClient();
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delete _control;
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}
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Control *Document::control() const
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{
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return _control;
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}
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unsigned Document::revision() const
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{
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return _revision;
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}
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void Document::setRevision(unsigned revision)
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{
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_revision = revision;
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}
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unsigned Document::editorRevision() const
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{
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return _editorRevision;
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}
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void Document::setEditorRevision(unsigned editorRevision)
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{
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_editorRevision = editorRevision;
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}
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QDateTime Document::lastModified() const
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{
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return _lastModified;
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}
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void Document::setLastModified(const QDateTime &lastModified)
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{
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_lastModified = lastModified;
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}
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QString Document::fileName() const
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{
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return _fileName;
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}
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QStringList Document::includedFiles() const
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{
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QStringList files;
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foreach (const Include &i, _includes)
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files.append(i.fileName());
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files.removeDuplicates();
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return files;
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}
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// This assumes to be called with a QDir::cleanPath cleaned fileName.
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void Document::addIncludeFile(const QString &fileName, unsigned line)
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{
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_includes.append(Include(fileName, line));
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}
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void Document::appendMacro(const Macro ¯o)
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{
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_definedMacros.append(macro);
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}
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void Document::addMacroUse(const Macro ¯o, unsigned offset, unsigned length,
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unsigned beginLine,
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const QVector<MacroArgumentReference> &actuals)
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{
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MacroUse use(macro, offset, offset + length, beginLine);
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foreach (const MacroArgumentReference &actual, actuals) {
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const Block arg(actual.position(), actual.position() + actual.length());
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use.addArgument(arg);
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}
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_macroUses.append(use);
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}
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void Document::addUndefinedMacroUse(const QByteArray &name, unsigned offset)
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{
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QByteArray copy(name.data(), name.size());
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UndefinedMacroUse use(copy, offset);
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_undefinedMacroUses.append(use);
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}
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/*!
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\class Document::MacroUse
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\brief Represents the usage of a macro in a \l {Document}.
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\sa Document::UndefinedMacroUse
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*/
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/*!
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\class Document::UndefinedMacroUse
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\brief Represents a macro that was looked up, but not found.
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Holds data about the reference to a macro in an \tt{#ifdef} or \tt{#ifndef}
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or argument to the \tt{defined} operator inside an \tt{#if} or \tt{#elif} that does
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not exist.
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\sa Document::undefinedMacroUses(), Document::MacroUse, Macro
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*/
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/*!
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\fn QByteArray Document::UndefinedMacroUse::name() const
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Returns the name of the macro that was not found.
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*/
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/*!
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\fn QList<UndefinedMacroUse> Document::undefinedMacroUses() const
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Returns a list of referenced but undefined macros.
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\sa Document::macroUses(), Document::definedMacros(), Macro
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*/
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/*!
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\fn QList<MacroUse> Document::macroUses() const
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Returns a list of macros used.
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\sa Document::undefinedMacroUses(), Document::definedMacros(), Macro
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*/
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/*!
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\fn QList<Macro> Document::definedMacros() const
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Returns the list of macros defined.
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\sa Document::macroUses(), Document::undefinedMacroUses()
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*/
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TranslationUnit *Document::translationUnit() const
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{
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return _translationUnit;
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}
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bool Document::skipFunctionBody() const
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{
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return _translationUnit->skipFunctionBody();
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}
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void Document::setSkipFunctionBody(bool skipFunctionBody)
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{
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_translationUnit->setSkipFunctionBody(skipFunctionBody);
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}
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unsigned Document::globalSymbolCount() const
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{
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if (! _globalNamespace)
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return 0;
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return _globalNamespace->memberCount();
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}
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Symbol *Document::globalSymbolAt(unsigned index) const
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{
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return _globalNamespace->memberAt(index);
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}
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Namespace *Document::globalNamespace() const
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{
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return _globalNamespace;
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}
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void Document::setGlobalNamespace(Namespace *globalNamespace)
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{
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_globalNamespace = globalNamespace;
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}
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Scope *Document::scopeAt(unsigned line, unsigned column)
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{
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FindScopeAt findScopeAt(_translationUnit, line, column);
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if (Scope *scope = findScopeAt(_globalNamespace))
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return scope;
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return globalNamespace();
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}
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Symbol *Document::lastVisibleSymbolAt(unsigned line, unsigned column) const
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{
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LastVisibleSymbolAt lastVisibleSymbolAt(globalNamespace());
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return lastVisibleSymbolAt(line, column);
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}
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const Macro *Document::findMacroDefinitionAt(unsigned line) const
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{
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foreach (const Macro ¯o, _definedMacros) {
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if (macro.line() == line)
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return ¯o;
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}
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return 0;
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}
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const Document::MacroUse *Document::findMacroUseAt(unsigned offset) const
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{
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foreach (const Document::MacroUse &use, _macroUses) {
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if (use.contains(offset) && (offset < use.begin() + use.macro().name().length()))
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return &use;
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}
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return 0;
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}
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const Document::UndefinedMacroUse *Document::findUndefinedMacroUseAt(unsigned offset) const
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{
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foreach (const Document::UndefinedMacroUse &use, _undefinedMacroUses) {
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if (use.contains(offset) && (offset < use.begin() + use.name().length()))
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return &use;
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}
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return 0;
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}
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Document::Ptr Document::create(const QString &fileName)
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{
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Document::Ptr doc(new Document(fileName));
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return doc;
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}
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QByteArray Document::utf8Source() const
|
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{ return _source; }
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void Document::setUtf8Source(const QByteArray &source)
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{
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_source = source;
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_translationUnit->setSource(_source.constBegin(), _source.size());
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}
|
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void Document::startSkippingBlocks(unsigned start)
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{
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_skippedBlocks.append(Block(start, 0));
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}
|
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void Document::stopSkippingBlocks(unsigned stop)
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{
|
|
if (_skippedBlocks.isEmpty())
|
|
return;
|
|
|
|
unsigned start = _skippedBlocks.back().begin();
|
|
if (start > stop)
|
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_skippedBlocks.removeLast(); // Ignore this block, it's invalid.
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else
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_skippedBlocks.back() = Block(start, stop);
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|
}
|
|
|
|
bool Document::isTokenized() const
|
|
{
|
|
return _translationUnit->isTokenized();
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|
}
|
|
|
|
void Document::tokenize()
|
|
{
|
|
_translationUnit->tokenize();
|
|
}
|
|
|
|
bool Document::isParsed() const
|
|
{
|
|
return _translationUnit->isParsed();
|
|
}
|
|
|
|
bool Document::parse(ParseMode mode)
|
|
{
|
|
TranslationUnit::ParseMode m = TranslationUnit::ParseTranlationUnit;
|
|
switch (mode) {
|
|
case ParseTranlationUnit:
|
|
m = TranslationUnit::ParseTranlationUnit;
|
|
break;
|
|
|
|
case ParseDeclaration:
|
|
m = TranslationUnit::ParseDeclaration;
|
|
break;
|
|
|
|
case ParseExpression:
|
|
m = TranslationUnit::ParseExpression;
|
|
break;
|
|
|
|
case ParseDeclarator:
|
|
m = TranslationUnit::ParseDeclarator;
|
|
break;
|
|
|
|
case ParseStatement:
|
|
m = TranslationUnit::ParseStatement;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return _translationUnit->parse(m);
|
|
}
|
|
|
|
void Document::check(CheckMode mode)
|
|
{
|
|
Q_ASSERT(!_globalNamespace);
|
|
|
|
_checkMode = mode;
|
|
|
|
if (! isParsed())
|
|
parse();
|
|
|
|
_globalNamespace = _control->newNamespace(0);
|
|
Bind semantic(_translationUnit);
|
|
if (mode == FastCheck)
|
|
semantic.setSkipFunctionBodies(true);
|
|
|
|
if (! _translationUnit->ast())
|
|
return; // nothing to do.
|
|
|
|
if (TranslationUnitAST *ast = _translationUnit->ast()->asTranslationUnit())
|
|
semantic(ast, _globalNamespace);
|
|
else if (StatementAST *ast = _translationUnit->ast()->asStatement())
|
|
semantic(ast, _globalNamespace);
|
|
else if (ExpressionAST *ast = _translationUnit->ast()->asExpression())
|
|
semantic(ast, _globalNamespace);
|
|
else if (DeclarationAST *ast = translationUnit()->ast()->asDeclaration())
|
|
semantic(ast, _globalNamespace);
|
|
}
|
|
|
|
void Document::keepSourceAndAST()
|
|
{
|
|
_keepSourceAndASTCount.ref();
|
|
}
|
|
|
|
void Document::releaseSourceAndAST()
|
|
{
|
|
if (!_keepSourceAndASTCount.deref()) {
|
|
_source.clear();
|
|
_translationUnit->release();
|
|
_control->squeeze();
|
|
}
|
|
}
|
|
|
|
bool Document::DiagnosticMessage::operator==(const Document::DiagnosticMessage &other) const
|
|
{
|
|
return
|
|
_line == other._line &&
|
|
_column == other._column &&
|
|
_length == other._length &&
|
|
_level == other._level &&
|
|
_fileName == other._fileName &&
|
|
_text == other._text;
|
|
}
|
|
|
|
bool Document::DiagnosticMessage::operator!=(const Document::DiagnosticMessage &other) const
|
|
{
|
|
return !operator==(other);
|
|
}
|
|
|
|
Snapshot::Snapshot()
|
|
{
|
|
}
|
|
|
|
Snapshot::~Snapshot()
|
|
{
|
|
}
|
|
|
|
int Snapshot::size() const
|
|
{
|
|
return _documents.size();
|
|
}
|
|
|
|
bool Snapshot::isEmpty() const
|
|
{
|
|
return _documents.isEmpty();
|
|
}
|
|
|
|
Document::Ptr Snapshot::operator[](const QString &fileName) const
|
|
{
|
|
return _documents.value(fileName, Document::Ptr());
|
|
}
|
|
|
|
Snapshot::const_iterator Snapshot::find(const QString &fileName) const
|
|
{
|
|
return _documents.find(fileName);
|
|
}
|
|
|
|
void Snapshot::remove(const QString &fileName)
|
|
{
|
|
_documents.remove(fileName);
|
|
}
|
|
|
|
bool Snapshot::contains(const QString &fileName) const
|
|
{
|
|
return _documents.contains(fileName);
|
|
}
|
|
|
|
void Snapshot::insert(Document::Ptr doc)
|
|
{
|
|
if (doc)
|
|
_documents.insert(doc->fileName(), doc);
|
|
}
|
|
|
|
Document::Ptr Snapshot::preprocessedDocument(const QString &source, const QString &fileName) const
|
|
{
|
|
Document::Ptr newDoc = Document::create(fileName);
|
|
if (Document::Ptr thisDocument = document(fileName)) {
|
|
newDoc->_revision = thisDocument->_revision;
|
|
newDoc->_editorRevision = thisDocument->_editorRevision;
|
|
newDoc->_lastModified = thisDocument->_lastModified;
|
|
newDoc->_includes = thisDocument->_includes;
|
|
}
|
|
|
|
FastPreprocessor pp(*this);
|
|
const QByteArray preprocessedCode = pp.run(newDoc, source);
|
|
newDoc->setUtf8Source(preprocessedCode);
|
|
return newDoc;
|
|
}
|
|
|
|
Document::Ptr Snapshot::documentFromSource(const QByteArray &preprocessedCode,
|
|
const QString &fileName) const
|
|
{
|
|
Document::Ptr newDoc = Document::create(fileName);
|
|
|
|
if (Document::Ptr thisDocument = document(fileName)) {
|
|
newDoc->_revision = thisDocument->_revision;
|
|
newDoc->_editorRevision = thisDocument->_editorRevision;
|
|
newDoc->_lastModified = thisDocument->_lastModified;
|
|
newDoc->_includes = thisDocument->_includes;
|
|
newDoc->_definedMacros = thisDocument->_definedMacros;
|
|
newDoc->_macroUses = thisDocument->_macroUses;
|
|
}
|
|
|
|
newDoc->setUtf8Source(preprocessedCode);
|
|
return newDoc;
|
|
}
|
|
|
|
Document::Ptr Snapshot::document(const QString &fileName) const
|
|
{
|
|
return _documents.value(fileName);
|
|
}
|
|
|
|
Snapshot Snapshot::simplified(Document::Ptr doc) const
|
|
{
|
|
Snapshot snapshot;
|
|
simplified_helper(doc, &snapshot);
|
|
return snapshot;
|
|
}
|
|
|
|
void Snapshot::simplified_helper(Document::Ptr doc, Snapshot *snapshot) const
|
|
{
|
|
if (! doc)
|
|
return;
|
|
|
|
if (! snapshot->contains(doc->fileName())) {
|
|
snapshot->insert(doc);
|
|
|
|
foreach (const Document::Include &incl, doc->includes()) {
|
|
Document::Ptr includedDoc = document(incl.fileName());
|
|
simplified_helper(includedDoc, snapshot);
|
|
}
|
|
}
|
|
}
|
|
|