Method exchange

plugins/clang/codegen/codegenhelper.cpp:167–188

        : public TypeExchanger
    {
        AbstractType::Ptr exchange(const AbstractType::Ptr& type) override {
            if (!type) {
                return type;
            }

            AbstractType::Ptr newType(type->clone());

            if (auto alias = type.dynamicCast<TypeAliasType>()) {
                //If the aliased type has less involved template arguments, prefer it
                AbstractType::Ptr shortenedTarget = exchange(alias->type());
                if (shortenedTarget && shortenedTarget->toString().count(QLatin1Char('<')) < alias->toString().count(QLatin1Char('<'))
                    && reservedIdentifierCount(shortenedTarget->toString()) <= reservedIdentifierCount(alias->toString()))
                {
                    shortenedTarget->setModifiers(shortenedTarget->modifiers() | alias->modifiers());
                    return shortenedTarget;
                }
            }

            newType->exchangeTypes(this);

            return newType;
        }
    };

    ShortenAliasExchanger exchanger;