diff options
Diffstat (limited to 'src/libstore/globals.cc')
| -rw-r--r-- | src/libstore/globals.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc index 1c2c08715..249c36673 100644 --- a/src/libstore/globals.cc +++ b/src/libstore/globals.cc @@ -105,6 +105,13 @@ StringSet Settings::getDefaultSystemFeatures() return features; } +void Settings::requireExperimentalFeature(const std::string & name) +{ + auto & f = experimentalFeatures.get(); + if (std::find(f.begin(), f.end(), name) == f.end()) + throw Error("experimental Nix feature '%s' is disabled", name); +} + const string nixVersion = PACKAGE_VERSION; template<> void BaseSetting<SandboxMode>::set(const std::string & str) |