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authorChandler Carruth <chandlerc@gmail.com>2013-11-09 04:06:02 +0000
committerChandler Carruth <chandlerc@gmail.com>2013-11-09 04:06:02 +0000
commitaec427786be4f4dd0c8ecc0aa17899e6c836e45d (patch)
treecb5b1da86d2d4d32929e7baecaabbdde7d300dfc /unittests
parent332cbf1d4503fcad3b5f3bf6ff73889feff03ad7 (diff)
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Add a polymorphic_ptr<T> smart pointer data type. It's a somewhat silly
unique ownership smart pointer which is *deep* copyable by assuming it can call a T::clone() method to allocate a copy of the owned data. This is mostly useful with containers or other collections of uniquely owned data in C++98 where they *might* copy. With C++11 we can likely remove this in favor of move-only types and containers wrapped around those types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194315 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests')
-rw-r--r--unittests/ADT/CMakeLists.txt1
-rw-r--r--unittests/ADT/polymorphic_ptr_test.cpp71
2 files changed, 72 insertions, 0 deletions
diff --git a/unittests/ADT/CMakeLists.txt b/unittests/ADT/CMakeLists.txt
index 2125657..8ad303a 100644
--- a/unittests/ADT/CMakeLists.txt
+++ b/unittests/ADT/CMakeLists.txt
@@ -35,6 +35,7 @@ set(ADTSources
TripleTest.cpp
TwineTest.cpp
VariadicFunctionTest.cpp
+ polymorphic_ptr_test.cpp
)
# They cannot be compiled on MSVC9 due to its bug.
diff --git a/unittests/ADT/polymorphic_ptr_test.cpp b/unittests/ADT/polymorphic_ptr_test.cpp
new file mode 100644
index 0000000..e1e9c42
--- /dev/null
+++ b/unittests/ADT/polymorphic_ptr_test.cpp
@@ -0,0 +1,71 @@
+//===- llvm/unittest/ADT/polymorphic_ptr.h - polymorphic_ptr<T> tests -----===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "gtest/gtest.h"
+#include "llvm/ADT/polymorphic_ptr.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+namespace {
+
+TEST(polymorphic_ptr_test, Basic) {
+ struct S {
+ S(int x) : x(x) {}
+ int x;
+ };
+
+ polymorphic_ptr<S> null;
+ EXPECT_FALSE((bool)null);
+ EXPECT_TRUE(!null);
+ EXPECT_EQ((S*)0, null.get());
+
+ S *s = new S(42);
+ polymorphic_ptr<S> p(s);
+ EXPECT_TRUE((bool)p);
+ EXPECT_FALSE(!p);
+ EXPECT_TRUE(p != null);
+ EXPECT_FALSE(p == null);
+ EXPECT_TRUE(p == s);
+ EXPECT_TRUE(s == p);
+ EXPECT_FALSE(p != s);
+ EXPECT_FALSE(s != p);
+ EXPECT_EQ(s, &*p);
+ EXPECT_EQ(s, p.operator->());
+ EXPECT_EQ(s, p.get());
+ EXPECT_EQ(42, p->x);
+
+ EXPECT_EQ(s, p.take());
+ EXPECT_FALSE((bool)p);
+ EXPECT_TRUE(!p);
+ p = s;
+ EXPECT_TRUE((bool)p);
+ EXPECT_FALSE(!p);
+ EXPECT_EQ(s, &*p);
+ EXPECT_EQ(s, p.operator->());
+ EXPECT_EQ(s, p.get());
+ EXPECT_EQ(42, p->x);
+
+ polymorphic_ptr<S> p2((llvm_move(p)));
+ EXPECT_FALSE((bool)p);
+ EXPECT_TRUE(!p);
+ EXPECT_TRUE((bool)p2);
+ EXPECT_FALSE(!p2);
+ EXPECT_EQ(s, &*p2);
+
+ using std::swap;
+ swap(p, p2);
+ EXPECT_TRUE((bool)p);
+ EXPECT_FALSE(!p);
+ EXPECT_EQ(s, &*p);
+ EXPECT_FALSE((bool)p2);
+ EXPECT_TRUE(!p2);
+}
+
+}