Method changeAllocStatus

lib/checkleakautovar.cpp:980–1015

void CheckLeakAutoVarImpl::changeAllocStatus(VarInfo &varInfo, const VarInfo::AllocInfo& allocation, const Token* tok, const Token* arg)
{
    std::map<int, VarInfo::AllocInfo> &alloctype = varInfo.alloctype;
    const auto var = alloctype.find(arg->varId());
    if (var != alloctype.end()) {
        // bailout if function is also allocating, since the argument might be moved
        // to the return value, such as in fdopen
        if (allocation.allocTok && mSettings.library.getAllocFuncInfo(allocation.allocTok)) {
            varInfo.erase(arg->varId());
            return;
        }
        if (allocation.status == VarInfo::NOALLOC) {
            // possible usage
            varInfo.possibleUsage[arg->varId()] = { tok, VarInfo::USED };
            if (var->second.status == VarInfo::DEALLOC && arg->strAt(-1) == "&")
                varInfo.erase(arg->varId());
        } else if (var->second.managed()) {
            doubleFreeError(tok, var->second.allocTok, arg->str(), allocation.type);
            var->second.status = allocation.status;
        } else if (var->second.type != allocation.type && var->second.type != 0) {
            // mismatching allocation and deallocation
            mismatchError(tok, var->second.allocTok, arg->str());
            varInfo.erase(arg->varId());
        } else {
            // deallocation
            var->second.status = allocation.status;
            var->second.type = allocation.type;
            var->second.allocTok = allocation.allocTok;
        }
    } else if (allocation.status != VarInfo::NOALLOC && allocation.status != VarInfo::OWNED && !Token::simpleMatch(tok->astTop(), "return")) {
        auto& allocInfo = alloctype[arg->varId()];
        allocInfo.status = VarInfo::DEALLOC;
        allocInfo.allocTok = tok;
        allocInfo.type = allocation.type;
    }
}

void CheckLeakAutoVarImpl::functionCall(const Token *tokName, const Token *tokOpeningPar, VarInfo &varInfo, const VarInfo::AllocInfo& allocation, const Library::AllocFunc* af)
{