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lib.modules: in evalModules return move _module.class -> configurationClass

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This commit is contained in:
Robert Hensing 2023-04-27 19:50:20 +02:00
parent 4c7aa7d831
commit 89491bef8d
3 changed files with 10 additions and 11 deletions
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8
doc/module-system/module-system.chapter.md
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@ -95,3 +95,11 @@ If you do reference multiple `config` (or `options`) from before and after `exte
A portion of the configuration tree which is elided from `config`. A portion of the configuration tree which is elided from `config`.
<!-- TODO: when markdown migration is complete, make _module docs visible again and reference _module docs. Maybe move those docs into this chapter? --> <!-- TODO: when markdown migration is complete, make _module docs visible again and reference _module docs. Maybe move those docs into this chapter? -->
#### `_type` {#module-system-lib-evalModules-return-value-_type}
A nominal type marker, always `"configuration"`.
#### `configurationClass` {#module-system-lib-evalModules-return-value-_configurationClass}
Equal to the [`class` parameter](#module-system-lib-evalModules-param-class).

12
lib/modules.nix
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@ -220,16 +220,6 @@ let
within a configuration, but can be used in module imports. within a configuration, but can be used in module imports.
''; '';
}; };
_module.class = mkOption {
readOnly = true;
internal = true;
description = lib.mdDoc ''
If the `class` attribute is set and non-`null`, the module system will reject `imports` with a different `class`.
This option contains the expected `class` attribute of the current module evaluation.
'';
};
}; };
config = { config = {
@ -237,7 +227,6 @@ let
inherit extendModules; inherit extendModules;
moduleType = type; moduleType = type;
}; };
_module.class = class;
_module.specialArgs = specialArgs; _module.specialArgs = specialArgs;
}; };
}; };
@ -337,6 +326,7 @@ let
config = checked (removeAttrs config [ "_module" ]); config = checked (removeAttrs config [ "_module" ]);
_module = checked (config._module); _module = checked (config._module);
inherit extendModules type; inherit extendModules type;
configurationClass = class;
}; };
in result; in result;

1
lib/tests/modules.sh
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@ -364,6 +364,7 @@ checkConfigOutput '^1$' config.sub.specialisation.value ./extendModules-168767-i
# Class checks, evalModules # Class checks, evalModules
checkConfigOutput '^{ }$' config.ok.config ./class-check.nix checkConfigOutput '^{ }$' config.ok.config ./class-check.nix
checkConfigOutput '"nixos"' config.ok.configurationClass ./class-check.nix
checkConfigError 'The module .*/module-class-is-darwin.nix was imported into nixos instead of darwin.' config.fail.config ./class-check.nix checkConfigError 'The module .*/module-class-is-darwin.nix was imported into nixos instead of darwin.' config.fail.config ./class-check.nix
checkConfigError 'The module foo.nix#darwinModules.default was imported into nixos instead of darwin.' config.fail-anon.config ./class-check.nix checkConfigError 'The module foo.nix#darwinModules.default was imported into nixos instead of darwin.' config.fail-anon.config ./class-check.nix