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nixpkgs/lib/tests/modules/deferred-module-error.nix
Robert Hensing 3c4a49f506 lib/modules: Throw earlier when module function does not return attrs
`m` must always be an attrset at this point. It is basically always
evaluated. This will make it throw when any of the attrs is accessed,
rather than just `config`. We assume that this will improve the error
message in more scenarios.
2022-06-14 23:23:41 +02:00

21 lines
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Nix

{ config, lib, ... }:
let
inherit (lib) types mkOption setDefaultModuleLocation evalModules;
inherit (types) deferredModule lazyAttrsOf submodule str raw enum;
in
{
options = {
deferred = mkOption {
type = deferredModule;
};
result = mkOption {
default = (evalModules { modules = [ config.deferred ]; }).config.result;
};
};
config = {
deferred = { ... }:
# this should be an attrset, so this fails
true;
};
}