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#include "clangreparsesupportivetranslationunitjob.h"

#include <clangbackendipc/clangbackendipcdebugutils.h>

#include <utils/qtcassert.h>

namespace ClangBackEnd {

static ReparseSupportiveTranslationUnitJob::AsyncResult runAsyncHelper(
        const TranslationUnit &translationUnit,
        const TranslationUnitUpdateInput &translationUnitUpdateInput)
{
    TIME_SCOPE_DURATION("ReparseSupportiveTranslationUnitJob");

    TranslationUnitUpdateInput updateInput = translationUnitUpdateInput;
    updateInput.reparseNeeded = true;

    ReparseSupportiveTranslationUnitJob::AsyncResult asyncResult;
    asyncResult.updateResult = translationUnit.reparse(updateInput);

    return asyncResult;
}

IAsyncJob::AsyncPrepareResult ReparseSupportiveTranslationUnitJob::prepareAsyncRun()
{
    const JobRequest jobRequest = context().jobRequest;
    QTC_ASSERT(jobRequest.type == JobRequest::Type::ReparseSupportiveTranslationUnit, return AsyncPrepareResult());

    try {
        m_pinnedDocument = context().documentForJobRequest();
        m_pinnedFileContainer = m_pinnedDocument.fileContainer();

        const TranslationUnit translationUnit
                = m_pinnedDocument.translationUnit(jobRequest.preferredTranslationUnit);
        const TranslationUnitUpdateInput updateInput = m_pinnedDocument.createUpdateInput();
        setRunner([translationUnit, updateInput]() {
            return runAsyncHelper(translationUnit, updateInput);
        });
        return AsyncPrepareResult{translationUnit.id()};

    } catch (const std::exception &exception) {
        qWarning() << "Error in ReparseSupportiveTranslationUnitJob::prepareAsyncRun:"
                   << exception.what();
        return AsyncPrepareResult();
    }
}

void ReparseSupportiveTranslationUnitJob::finalizeAsyncRun()
{
    if (!context().isOutdated()) {
        const AsyncResult result = asyncResult();
        m_pinnedDocument.incorporateUpdaterResult(result.updateResult);
    }
}

} // namespace ClangBackEnd

