QList<ProblemPointer> TestProblems::parse(const QByteArray& code)
{
ClangIndex index;
ClangParsingEnvironment environment;
environment.setTranslationUnitUrl(IndexedString(FileName));
ParseSession session(ParseSessionData::Ptr(new ParseSessionData({UnsavedFile(FileName, {code})},
&index, environment)));
return session.problemsForFile(session.mainFile());
}
void TestDUChain::testParsingEnvironment()
{
const TopDUContext::Features features = TopDUContext::AllDeclarationsContextsAndUses;
IndexedTopDUContext indexed;
ClangParsingEnvironment lastEnv;
{
TestFile file("int main() {}\n", "cpp");
auto astFeatures = static_cast<TopDUContext::Features>(features | TopDUContext::AST);
file.parse(astFeatures);
file.setKeepDUChainData(true);
QVERIFY(file.waitForParsed());
DUChainWriteLocker lock;
auto top = file.topContext();
QVERIFY(top);
auto sessionData = ParseSessionData::Ptr(dynamic_cast<ParseSessionData*>(top->ast().data()));
lock.unlock();
ParseSession session(sessionData);
lock.lock();
QVERIFY(session.data());
QVERIFY(top);
auto envFile = QExplicitlySharedDataPointer<ClangParsingEnvironmentFile>(
dynamic_cast<ClangParsingEnvironmentFile*>(file.topContext()->parsingEnvironmentFile().data()));
QCOMPARE(envFile->features(), astFeatures);
QVERIFY(envFile->featuresSatisfied(astFeatures));
QCOMPARE(envFile->environmentQuality(), ClangParsingEnvironment::Source);
// if no environment is given, no update should be triggered
QVERIFY(!envFile->needsUpdate());
// same env should also not trigger a reparse
ClangParsingEnvironment env = session.environment();
QCOMPARE(env.quality(), ClangParsingEnvironment::Source);
QVERIFY(!envFile->needsUpdate(&env));
// but changing the environment should trigger an update
env.addIncludes(Path::List() << Path("/foo/bar/baz"));
QVERIFY(envFile->needsUpdate(&env));
envFile->setEnvironment(env);
QVERIFY(!envFile->needsUpdate(&env));
// setting the environment quality higher should require an update
env.setQuality(ClangParsingEnvironment::BuildSystem);
QVERIFY(envFile->needsUpdate(&env));
envFile->setEnvironment(env);
QVERIFY(!envFile->needsUpdate(&env));
// changing defines requires an update
env.addDefines(QHash<QString, QString>{ { "foo", "bar" } });
QVERIFY(envFile->needsUpdate(&env));
// but only when changing the defines for the envFile's TU
const auto barTU = IndexedString("bar.cpp");
const auto oldTU = env.translationUnitUrl();
env.setTranslationUnitUrl(barTU);
QCOMPARE(env.translationUnitUrl(), barTU);
QVERIFY(!envFile->needsUpdate(&env));
env.setTranslationUnitUrl(oldTU);
QVERIFY(envFile->needsUpdate(&env));
// update it again
envFile->setEnvironment(env);
QVERIFY(!envFile->needsUpdate(&env));
lastEnv = env;
// now compare against a lower quality environment
// in such a case, we do not want to trigger an update
env.setQuality(ClangParsingEnvironment::Unknown);
env.setTranslationUnitUrl(barTU);
QVERIFY(!envFile->needsUpdate(&env));
// even when the environment changes
env.addIncludes(Path::List() << Path("/lalalala"));
QVERIFY(!envFile->needsUpdate(&env));
indexed = top->indexed();
}
DUChain::self()->storeToDisk();
{
DUChainWriteLocker lock;
QVERIFY(!DUChain::self()->isInMemory(indexed.index()));
QVERIFY(indexed.data());
QVERIFY(DUChain::self()->environmentFileForDocument(indexed));
auto envFile = QExplicitlySharedDataPointer<ClangParsingEnvironmentFile>(
dynamic_cast<ClangParsingEnvironmentFile*>(DUChain::self()->environmentFileForDocument(indexed).data()));
QVERIFY(envFile);
QCOMPARE(envFile->features(), features);
QVERIFY(envFile->featuresSatisfied(features));
QVERIFY(!envFile->needsUpdate(&lastEnv));
DUChain::self()->removeDocumentChain(indexed.data());
}
}