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Add an immovable type to test Optional<T>::emplace more rigorously after r218732.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218783 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2014-10-01 18:29:44 +00:00
parent 10c4265675
commit 7538babc12
1 changed files with 26 additions and 5 deletions
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31
unittests/ADT/OptionalTest.cpp
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@ -324,15 +324,36 @@ TEST_F(OptionalTest, MoveOnlyAssigningAssignment) {
EXPECT_EQ(1u, MoveOnly::Destructions);
}
struct Immovable {
static unsigned Constructions;
static unsigned Destructions;
int val;
explicit Immovable(int val) : val(val) {
++Constructions;
}
~Immovable() {
++Destructions;
}
static void ResetCounts() {
Constructions = 0;
Destructions = 0;
}
private:
// This should disable all move/copy operations.
Immovable(Immovable&& other) LLVM_DELETED_FUNCTION;
};
unsigned Immovable::Constructions = 0;
unsigned Immovable::Destructions = 0;
TEST_F(OptionalTest, MoveOnlyEmplace) {
Optional<MoveOnly> A;
MoveOnly::ResetCounts();
Optional<Immovable> A;
Immovable::ResetCounts();
A.emplace(4);
EXPECT_TRUE((bool)A);
EXPECT_EQ(4, A->val);
EXPECT_EQ(0u, MoveOnly::MoveConstructions);
EXPECT_EQ(0u, MoveOnly::MoveAssignments);
EXPECT_EQ(0u, MoveOnly::Destructions);
EXPECT_EQ(1u, Immovable::Constructions);
EXPECT_EQ(0u, Immovable::Destructions);
}
#if LLVM_HAS_RVALUE_REFERENCE_THIS