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Introduce DerivationOptions

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This is a first step towards PR #10760, and the issues it addresses.
See the Doxygen for details.

Thanks to these changes, we are able to drastically restrict how the
rest of the code-base uses `ParseDerivation`.

Co-Authored-By: HaeNoe <git@haenoe.party>
This commit is contained in:
John Ericson 2025-01-19 23:56:59 -05:00
parent f0dbfada38
commit 917b8b2f77
14 changed files with 664 additions and 279 deletions
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4
src/libutil/json-utils.hh
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@ -25,6 +25,7 @@ const nlohmann::json & valueAt(
const std::string & key);
std::optional<nlohmann::json> optionalValueAt(const nlohmann::json::object_t & value, const std::string & key);
std::optional<nlohmann::json> nullableValueAt(const nlohmann::json::object_t & value, const std::string & key);
/**
* Downcast the json object, failing with a nice error if the conversion fails.
@ -69,6 +70,9 @@ struct json_avoids_null<std::vector<T>> : std::true_type {};
template<typename T>
struct json_avoids_null<std::list<T>> : std::true_type {};
template<typename T>
struct json_avoids_null<std::set<T>> : std::true_type {};
template<typename K, typename V>
struct json_avoids_null<std::map<K, V>> : std::true_type {};