ArgumentError in Surface.API.generate_docs when compiling a component with @moduledoc false

[Blond11516]

When building a project that contains any Surface component (i.e. any module using Component, LiveView, LiveComponent or MacroComponent) with @moduledoc false, compilation fails with the following error:

Expected Behavior

The project should compile successfully.

Current Behavior

Compilation fails.

Possible Solution

Adding the following arm to the case statement of Surface.API.generate_docs/1 appears to fix the issue:

{_line, false} ->
  {env.line, props.doc}

This solution returns the same doc as if the @moduledocattribute was not specified at all.

Steps to Reproduce

1. Create a mix project
2. Add Surface as a dependency
3. Create a module with using Surface.Component and @moduledoc false
4. Run mix compile

Context (Environment)

Elixir version: 1.10.3-otp-22
Surface version: Latest from master

If this an actual issue and the proposed solution is acceptable I would be happy to submit a PR to fix this!

[msaraiva]

Fixed in b18a1ad.

Thanks for reporting this issue!