There is no codepath that can use this any longer, since we need to
evaluate the modules as whole objects.
This means we're going to have to live for now with invalid module
output references returning "object" errors rather that "module".
In order to efficiently build the module objects for evaluation, we need
to collect the outputs from a set of module instances. The ModuleOutputs
method will return a copy of the state outputs, while not requiring the
unnecessary copying of each entire module.
We need all module instance outputs to build the objects for evaluation,
but there is no need to copy all the resource instances along with that.
This allows us to only return the output states, with enough information
to connect them with their module instances.
The evaluationStateData needs the change to the GetModule method to work
with the new evaluator. This is using a deep copy of module instances,
which we will clean up after some changes to the states package.
Since modules need to be evaluated as whole objects, yet the outputs are
all handled individually, we need a method to collect and return all
output changes for a module from the plan, including all known
module instances.
Module references, like resource references, need to always return the
and object containing all instances in order to handle modules as single
values, and to postpone index evaluation to when the expression as whole
is evaluated.
In order to be able to use module values, and handle operations like
possibly invalid module indexes in conditional statements, whole modules
must always be returned during evaluation.
The providers command has been refactored to use the modern provider types and
ProviderRequirements() functions. This resulted in a breaking change to
the output: it no longer outputs the providers by module and no longer
prints `(inherited)` or `(from state)` to show why a provider is
included. We decided that at this time it was best to stick with the
existing functions and make this change, but if we get feedback from the
community we will revisit.
Additional tests to exercise providers in modules and providers from
state have been included.
This PR adds iteration through any provider configuration blocks in the
config in addProviderRequirements().
A stale comment (of mine!) would leave one expecting the
module.ProviderRequirements to include any requirements from provider
configs. The comment was inaccurate and has been updated.
Kristin Laemmert