Add support for importing frameworks to swift_library.

* Adds a way to read FRAMEWORK_ keys from ObjcProvider and provide outputs as -F args to the compiler
* Adds a sample dynamic framework for testing

RELNOTES: swift_library is now able to import framework rules such as objc_framework.

--
MOS_MIGRATED_REVID=123337139

8 files changed, 96 insertions, 0 deletions

diff --git a/tools/build_defs/apple/test/BUILD b/tools/build_defs/apple/test/BUILD
new file mode 100644
index 0000000000..dbc9098fb2
--- /dev/null
+++ b/tools/build_defs/apple/test/BUILD
@@ -0,0 +1,5 @@
+filegroup(
+    name = "srcs",
+    srcs = glob(["**"]),
+    visibility = ["//src/test/shell/bazel:__pkg__"],
+)
diff --git a/tools/build_defs/apple/test/apple_rule_test.bzl b/tools/build_defs/apple/test/apple_rule_test.bzl
new file mode 100644
index 0000000000..882bbfb2c5
--- /dev/null
+++ b/tools/build_defs/apple/test/apple_rule_test.bzl
@@ -0,0 +1,36 @@
+# Copyright 2016 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.
+
+"""Tests for apple rules."""
+
+load(
+    "//tools/build_defs/apple:apple.bzl",
+    "swift_library",
+)
+load(
+    "//tools/build_rules:test_rules.bzl",
+    "rule_test",
+)
+
+def apple_rule_test(package):
+  """Issue simple tests on apple rules."""
+  rule_test(
+      name ="swift_lib_test",
+      generates = ["swift_lib.a", "swift_lib.swiftmodule"],
+      provides = {
+          "swift": "",
+          "objc_export": ""
+      },
+      rule = package + ":swift_lib",
+  )
diff --git a/tools/build_defs/apple/test/testdata/BlazeFramework.framework/BlazeFramework b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/BlazeFramework
new file mode 100644
index 0000000000..bcdce10406
--- /dev/null
+++ b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/BlazeFramework
diff --git a/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Headers/BlazeFramework.h b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Headers/BlazeFramework.h
new file mode 100644
index 0000000000..184d7daf4f
--- /dev/null
+++ b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Headers/BlazeFramework.h
@@ -0,0 +1,23 @@
+// Copyright 2016 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 <UIKit/UIKit.h>
+
+//! Project version number for BlazeFramework.
+FOUNDATION_EXPORT double BlazeFrameworkVersionNumber;
+
+//! Project version string for BlazeFramework.
+FOUNDATION_EXPORT const unsigned char BlazeFrameworkVersionString[];
+
+#import "Multiplier.h"
diff --git a/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Headers/Multiplier.h b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Headers/Multiplier.h
new file mode 100644
index 0000000000..4034d7a33d
--- /dev/null
+++ b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Headers/Multiplier.h
@@ -0,0 +1,19 @@
+// Copyright 2016 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/Foundation.h>
+
+@interface Multiplier : NSObject
+- (NSInteger)foo;
+@end
diff --git a/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Info.plist b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Info.plist
new file mode 100644
index 0000000000..b0a8d7721b
--- /dev/null
+++ b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Info.plist
diff --git a/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Modules/module.modulemap b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Modules/module.modulemap
new file mode 100644
index 0000000000..4f884309a9
--- /dev/null
+++ b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/Modules/module.modulemap
@@ -0,0 +1,6 @@
+framework module BlazeFramework {
+  umbrella header "BlazeFramework.h"
+
+  export *
+  module * { export * }
+}
diff --git a/tools/build_defs/apple/test/testdata/BlazeFramework.framework/README.md b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/README.md
new file mode 100644
index 0000000000..7e512132d0
--- /dev/null
+++ b/tools/build_defs/apple/test/testdata/BlazeFramework.framework/README.md
@@ -0,0 +1,7 @@
+A simple dynamically linked iOS framework for testing purposes. The only
+available method, `[Multiplier foo]` returns the static long `4`.
+
+Currently built for architectures: `i386, x86_64, armv7, arm64`.
+
+<!-- TODO(dmishe): Provide instructions and sources for rebuilding this
+     framework. -->