bool clazy::classifyQualType()

in src/TypeUtils.cpp [24:70]
41 lines of code
26 McCabe index (conditional complexity)

bool clazy::classifyQualType(const ClazyContext *context, clang::QualType qualType, const VarDecl *varDecl, QualTypeClassification &classif, clang::Stmt *body)
{
    QualType unrefQualType = clazy::unrefQualType(qualType);
    const Type *paramType = unrefQualType.getTypePtrOrNull();
    if (!paramType || paramType->isIncompleteType()) {
        return false;
    }

    if (isUndeducibleAuto(paramType)) {
        return false;
    }

    classif.size_of_T = context->astContext.getTypeSize(unrefQualType) / 8;
    classif.isBig = classif.size_of_T > 16;
    CXXRecordDecl *recordDecl = paramType->getAsCXXRecordDecl();
    CXXMethodDecl *copyCtor = recordDecl ? Utils::copyCtor(recordDecl) : nullptr;
    classif.isNonTriviallyCopyable =
        recordDecl && (recordDecl->hasNonTrivialCopyConstructor() || recordDecl->hasNonTrivialDestructor() || (copyCtor && copyCtor->isDeleted()));
    classif.isReference = qualType->isLValueReferenceType();
    classif.isConst = unrefQualType.isConstQualified();

    if (qualType->isRValueReferenceType()) { // && ref, nothing to do here
        return true;
    }

    if (classif.isConst && !classif.isReference) {
        classif.passNonTriviallyCopyableByConstRef = classif.isNonTriviallyCopyable;
        if (classif.isBig) {
            classif.passBigTypeByConstRef = true;
        }
    } else if (classif.isConst && classif.isReference && !classif.isNonTriviallyCopyable && !classif.isBig) {
        classif.passSmallTrivialByValue = true;
    } else if (varDecl && !classif.isConst && !classif.isReference && (classif.isBig || classif.isNonTriviallyCopyable)) {
        if (body
            && (Utils::containsNonConstMemberCall(context->parentMap, body, varDecl)
                || Utils::isPassedToFunction(StmtBodyRange(body), varDecl, /*byrefonly=*/true))) {
            return true;
        }

        classif.passNonTriviallyCopyableByConstRef = classif.isNonTriviallyCopyable;
        if (classif.isBig) {
            classif.passBigTypeByConstRef = true;
        }
    }

    return true;
}