module Base {
  module ImplicitSub {
    header "Base.ImplicitSub.h"
    module ImSub {
      header "Base.ImplicitSub.ImSub.h"
    }
    explicit module ExSub {
      header "Base.ImplicitSub.ExSub.h"
    }
  }
  explicit module ExplicitSub {
    header "Base.ExplicitSub.h"
    module ImSub {
      header "Base.ExplicitSub.ImSub.h"
    }
    explicit module ExSub {
      header "Base.ExplicitSub.ExSub.h"
    }
  }
}

module SingleGenericClass {
  header "SingleGenericClass.h"
  export *
}

module OverrideBase [system] {
  header "override.h"
  export *
}

module OtherModule {
  // Deliberately empty. Used by depends-on-swift-framework.swift.
}