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path: root/src/tools/clangbackend/source/clangupdateannotationsjob.cpp
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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/

#include "clangupdateannotationsjob.h"

#include <clangsupport/annotationsmessage.h>
#include <clangsupport/clangsupportdebugutils.h>
#include <clangsupport/clangcodemodelclientinterface.h>

#include <utils/qtcassert.h>

#include <QRegularExpression>

namespace ClangBackEnd {

// TODO: Add libclang API for this.
static QSet<Utf8String> unresolvedFilePaths(const QVector<DiagnosticContainer> &diagnostics)
{
    // We expect something like:
    // fatal error: 'ops.h' file not found
    QRegularExpression re("'(.*)' file not found");
    QSet<Utf8String> unresolved;

    for (const DiagnosticContainer &diagnostic : diagnostics) {
        if (diagnostic.severity == DiagnosticSeverity::Error
                && diagnostic.category == Utf8StringLiteral("Lexical or Preprocessor Issue")) {
            const QString path = re.match(diagnostic.text).captured(1);
            if (!path.isEmpty())
                unresolved << path;
        }
    }

    return unresolved;
}

IAsyncJob::AsyncPrepareResult UpdateAnnotationsJob::prepareAsyncRun()
{
    const JobRequest jobRequest = context().jobRequest;
    QTC_ASSERT(isExpectedJobRequestType(jobRequest), return AsyncPrepareResult());
    QTC_ASSERT(acquireDocument(), return AsyncPrepareResult());

    const TranslationUnit translationUnit = *m_translationUnit;
    const TranslationUnitUpdateInput updateInput = createUpdateInput(m_pinnedDocument);
    setRunner([translationUnit, updateInput]() {
        TIME_SCOPE_DURATION("UpdateAnnotationsJobRunner");

        // Update
        UpdateAnnotationsJob::AsyncResult asyncResult;
        asyncResult.updateResult = translationUnit.update(updateInput);

        // Collect
        translationUnit.extractAnnotations(asyncResult.firstHeaderErrorDiagnostic,
                                           asyncResult.diagnostics,
                                           asyncResult.tokenInfos,
                                           asyncResult.skippedSourceRanges);
        asyncResult.unresolvedFilePaths.unite(
            unresolvedFilePaths({asyncResult.firstHeaderErrorDiagnostic}));
        asyncResult.unresolvedFilePaths.unite(unresolvedFilePaths(asyncResult.diagnostics));

        return asyncResult;
    });

    return AsyncPrepareResult{translationUnit.id()};
}

void UpdateAnnotationsJob::finalizeAsyncRun()
{
    if (!context().isOutdated()) {
        const AsyncResult result = asyncResult();

        m_pinnedDocument.incorporateUpdaterResult(result.updateResult);
        m_pinnedDocument.setUnresolvedFilePaths(result.unresolvedFilePaths);

        context().client->annotations(AnnotationsMessage(m_pinnedFileContainer,
                                                         result.diagnostics,
                                                         result.firstHeaderErrorDiagnostic,
                                                         result.tokenInfos,
                                                         result.skippedSourceRanges));
    }
}

bool UpdateAnnotationsJob::isExpectedJobRequestType(const JobRequest &jobRequest) const
{
    return jobRequest.type == JobRequest::Type::UpdateAnnotations;
}

TranslationUnitUpdateInput
UpdateAnnotationsJob::createUpdateInput(const Document &document) const
{
    return document.createUpdateInput();
}

} // namespace ClangBackEnd