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+// Protocol Buffers - Google's data interchange format
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+// Copyright 2013 Google Inc. All rights reserved.
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+// https://developers.google.com/protocol-buffers/
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+//
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+// Redistribution and use in source and binary forms, with or without
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+// modification, are permitted provided that the following conditions are
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+// met:
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+//
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+// * Redistributions of source code must retain the above copyright
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+// notice, this list of conditions and the following disclaimer.
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+// * Redistributions in binary form must reproduce the above
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+// copyright notice, this list of conditions and the following disclaimer
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+// in the documentation and/or other materials provided with the
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+// distribution.
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+// * Neither the name of Google Inc. nor the names of its
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+// contributors may be used to endorse or promote products derived from
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+// this software without specific prior written permission.
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+//
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+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+
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+
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+#import "GPBTestUtilities.h"
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+
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+
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+//
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+// This is just a compile test (here to make sure things never regress).
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+//
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+// Objective C++ can run into issues with how the NS_ENUM/CF_ENUM declartion
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+// works because of the C++ spec being used for that compilation unit. So
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+// the fact that these imports all work without errors/warning means things
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+// are still good.
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+//
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+// The "well know types" should have cross file enums needing imports.
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+#import "GPBProtocolBuffers.h"
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+// Some of the tests explicitly use cross file enums also.
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+#import "google/protobuf/Unittest.pbobjc.h"
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+#import "google/protobuf/UnittestImport.pbobjc.h"
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+
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+// Sanity check the conditions of the test within the Xcode project.
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+#if !__cplusplus
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+ #error This isn't compiled as Objective C++?
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+#elif __cplusplus >= 201103L
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+ // If this trips, it means the Xcode default might have change (or someone
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+ // edited the testing project) and it might be time to revisit the GPB_ENUM
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+ // define in GPBBootstrap.h.
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+ #warning Did the Xcode default for C++ spec change?
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+#endif
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+
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+
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+// Dummy XCTest.
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+@interface GPBObjectiveCPlusPlusTests : GPBTestCase
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+@end
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+
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+@implementation GPBObjectiveCPlusPlusTests
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+- (void)testCPlusPlus {
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+ // Nothing, This was a compile test.
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+ XCTAssertTrue(YES);
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+}
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+@end
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Thomas Van Lenten