Repro changes for Swift/Objc Interop

examples/apple/objc_interop/BUILD

@@ -14,6 +14,7 @@ objc_library(
     name = "PrintStream",
     srcs = ["OIPrintStream.m"],
     hdrs = ["OIPrintStream.h"],
+    copts = ["-fmodules"],
     target_compatible_with = ["@platforms//os:macos"],
 )
 
@@ -22,12 +23,20 @@ swift_library(
     srcs = ["Printer.swift"],
     generated_header_name = "generated_header/Printer-Swift.h",
     generates_header = True,
-    deps = [":PrintStream"],
+    deps = [":PrintStream", ":Renderer"],
+)
+
+swift_library(
+    name = "Renderer",
+    srcs = ["Renderer.swift"],
+    deps = [],
+    module_name = "Renderer",
 )
 
 objc_library(
     name = "main",
     srcs = ["main.m"],
+    copts = ["-fmodules"],
     target_compatible_with = ["@platforms//os:macos"],
     deps = [":Printer"],
 )

examples/apple/objc_interop/Printer.swift

@@ -14,19 +14,32 @@
 
 import Foundation
 import examples_apple_objc_interop_PrintStream
+import Renderer
 
 @objc(OIPrinter)
 public class Printer: NSObject {
 
   private let stream: OIPrintStream
   private let prefix: String
+  private let renderer: Renderer
 
   @objc public init(prefix: NSString) {
     self.stream = OIPrintStream(fileHandle: .standardOutput)
     self.prefix = prefix as String
+    self.renderer = Renderer(prefix:prefix)
   }
 
   @objc public func print(_ message: NSString) {
     stream.print("\(prefix)\(message)")
   }
+
+  @objc public func print2(_ message: NSString, renderer: Renderer) {
+    stream.print("\(prefix)\(message)")
+  }
 }
+
+extension Printer: RenderProtocol { 
+  public func render(_ name: String) {
+    stream.print(name)
+  }
+}

examples/apple/objc_interop/Renderer.swift

@@ -0,0 +1,36 @@
+// Copyright 2018 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import Foundation
+
+@objc(SnapRenderer)
+public class Renderer: NSObject {
+
+  private let prefix: String
+
+  @objc public init(prefix: NSString) {
+    self.prefix = prefix as String
+  }
+
+  @objc public func printHaHa(_ message: NSString) {
+    print("\(prefix)\(message)")
+  }
+
+}
+
+@objc(SnapRenderProtocol)
+public protocol RenderProtocol: NSObjectProtocol {
+
+    func render(_ name: String)
+}