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Clang: Work around missing file

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We now generate an empty fake file.

Change-Id: I92fef2b24dce788c1d1b675b034d4b31346b80d9
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
This commit is contained in:
Marco Bubke
2017-02-20 17:14:17 +01:00
committed by Tim Jenssen
parent d74afaa0ed
commit a5e96dbd99
5 changed files with 68 additions and 3 deletions
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46
src/tools/clangpchmanagerbackend/source/collectincludespreprocessorcallbacks.h
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@@ -35,6 +35,10 @@
#include <utils/smallstringvector.h>
#include <QFile>
#include <QDir>
#include <QTemporaryDir>
#include <algorithm>
namespace ClangBackEnd {
@@ -64,7 +68,7 @@ public:
llvm::StringRef /*relativePath*/,
const clang::Module * /*imported*/) override
{
if (file) {
if (!m_skipInclude && file) {
auto fileUID = file->getUID();
if (isNotInExcludedIncludeUID(fileUID)) {
flagIncludeAlreadyRead(file);
@@ -80,6 +84,45 @@ public:
}
}
}
m_skipInclude = false;
}
bool FileNotFound(clang::StringRef fileNameRef, clang::SmallVectorImpl<char> &recoveryPath) override
{
QTemporaryDir temporaryDirectory;
temporaryDirectory.setAutoRemove(false);
const QByteArray temporaryDirUtf8 = temporaryDirectory.path().toUtf8();
const QString fileName = QString::fromUtf8(fileNameRef.data(), int(fileNameRef.size()));
QString filePath = temporaryDirectory.path() + '/' + fileName;
ensureDirectory(temporaryDirectory.path(), fileName);
createFakeFile(filePath);
recoveryPath.append(temporaryDirUtf8.cbegin(), temporaryDirUtf8.cend());
m_skipInclude = true;
return true;
}
void ensureDirectory(const QString &directory, const QString &fileName)
{
QStringList directoryEntries = fileName.split('/');
directoryEntries.pop_back();
if (!directoryEntries.isEmpty())
QDir(directory).mkpath(directoryEntries.join('/'));
}
void createFakeFile(const QString &filePath)
{
QFile fakeFile;
fakeFile.setFileName(filePath);
fakeFile.open(QIODevice::ReadWrite);
fakeFile.close();
}
bool isNotInExcludedIncludeUID(uint uid) const
@@ -131,6 +174,7 @@ private:
StringCache<Utils::PathString> &m_filePathCache;
const std::vector<uint> &m_excludedIncludeUID;
std::vector<uint> &m_alreadyIncludedFileUIDs;
bool m_skipInclude = false;
};
} // namespace ClangBackEnd