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Add 2x constructors for TinyPtrVector, one that takes in one elemenet and the other that takes in an ArrayRef<EltTy>

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Currently one can only construct an empty TinyPtrVector. These are just missing
elements of the API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225055 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Gottesman
2014-12-31 23:33:24 +00:00
parent 4ba553c0f3
commit 69338a993e
2 changed files with 33 additions and 0 deletions
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7
include/llvm/ADT/TinyPtrVector.h
View File

@@ -96,6 +96,13 @@ public:
return *this; return *this;
} }
/// Constructor from a single element.
explicit TinyPtrVector(EltTy Elt) : Val(Elt) {}
/// Constructor from an ArrayRef.
explicit TinyPtrVector(ArrayRef<EltTy> Elts)
: Val(new VecTy(Elts.begin(), Elts.end())) {}
// implicit conversion operator to ArrayRef. // implicit conversion operator to ArrayRef.
operator ArrayRef<EltTy>() const { operator ArrayRef<EltTy>() const {
if (Val.isNull()) if (Val.isNull())

26
unittests/ADT/TinyPtrVectorTest.cpp
View File

@@ -412,3 +412,29 @@ TYPED_TEST(TinyPtrVectorTest, InsertRange) {
} }
} }
TEST(TinyPtrVectorTest, SingleEltCtorTest) {
int v = 55;
TinyPtrVector<int *> V(&v);
EXPECT_TRUE(V.size() == 1);
EXPECT_FALSE(V.empty());
EXPECT_TRUE(V.front() == &v);
}
TEST(TinyPtrVectorTest, ArrayRefCtorTest) {
int data_array[128];
std::vector<int *> data;
for (unsigned i = 0, e = 128; i != e; ++i) {
data_array[i] = 324 - int(i);
data.push_back(&data_array[i]);
}
TinyPtrVector<int *> V(data);
EXPECT_TRUE(V.size() == 128);
EXPECT_FALSE(V.empty());
for (unsigned i = 0, e = 128; i != e; ++i) {
EXPECT_TRUE(V[i] == data[i]);
}
}