How To Verify Struct Initialization For Completeness

For initializing structs, there is New(), right? Pass some parameters, done.

But what about really large structs? Parameter lists aren't feasible beyond a certain size. You'd probably resort to filling the struct directly.

Then, however, a new problem arises. Consider this large struct has only, or mostly, mandatory fields. You should set all the required values properly. The Go compiler does not help you here. For every forgotten field, the compiler happily assumes the zero value of the field's type.

How can you verify if you don't forget to fill a mandatory field?

Linters to the rescue.

Let the exhauststruct linter verify your struct initializations and get notified if one or more fields are not explicitly initialized.

The exhauststruct linter is available standalone or via the meta-linter golanci-lint.