//===----------------------------------------------------------------------===//
#include "llvm/ADT/ilist.h"
-#include "llvm/ADT/ilist_node.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/ilist_node.h"
#include "gtest/gtest.h"
#include <ostream>
int Value;
Node() {}
- Node(int _Value) : Value(_Value) {}
+ Node(int Value) : Value(Value) {}
+ Node(const Node&) = default;
+ ~Node() { Value = -1; }
};
TEST(ilistTest, Basic) {
ilist<Node> List;
List.push_back(Node(1));
EXPECT_EQ(1, List.back().Value);
- EXPECT_EQ(0, List.back().getPrevNode());
- EXPECT_EQ(0, List.back().getNextNode());
+ EXPECT_EQ(nullptr, List.back().getPrevNode());
+ EXPECT_EQ(nullptr, List.back().getNextNode());
List.push_back(Node(2));
EXPECT_EQ(2, List.back().Value);
List.splice(List.begin(), List, List.begin());
EXPECT_EQ(1u, List.size());
EXPECT_EQ(1, List.front().Value);
- EXPECT_TRUE(llvm::next(List.begin()) == List.end());
+ EXPECT_TRUE(std::next(List.begin()) == List.end());
// Altenative noop. Move the first element behind itself.
List.push_back(2);
List.push_back(3);
- List.splice(llvm::next(List.begin()), List, List.begin());
+ List.splice(std::next(List.begin()), List, List.begin());
EXPECT_EQ(3u, List.size());
EXPECT_EQ(1, List.front().Value);
- EXPECT_EQ(2, llvm::next(List.begin())->Value);
+ EXPECT_EQ(2, std::next(List.begin())->Value);
EXPECT_EQ(3, List.back().Value);
}
+TEST(ilistTest, UnsafeClear) {
+ ilist<Node> List;
+
+ // Before even allocating a sentinel.
+ List.clearAndLeakNodesUnsafely();
+ EXPECT_EQ(0u, List.size());
+
+ // Empty list with sentinel.
+ ilist<Node>::iterator E = List.end();
+ List.clearAndLeakNodesUnsafely();
+ EXPECT_EQ(0u, List.size());
+ // The sentinel shouldn't change.
+ EXPECT_TRUE(E == List.end());
+
+ // List with contents.
+ List.push_back(1);
+ ASSERT_EQ(1u, List.size());
+ Node *N = List.begin();
+ EXPECT_EQ(1, N->Value);
+ List.clearAndLeakNodesUnsafely();
+ EXPECT_EQ(0u, List.size());
+ ASSERT_EQ(1, N->Value);
+ delete N;
+
+ // List is still functional.
+ List.push_back(5);
+ List.push_back(6);
+ ASSERT_EQ(2u, List.size());
+ EXPECT_EQ(5, List.front().Value);
+ EXPECT_EQ(6, List.back().Value);
+}
+
}