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-rw-r--r--core/fpdfapi/parser/cpdf_array.cpp16
-rw-r--r--core/fpdfapi/parser/cpdf_array.h4
-rw-r--r--core/fpdfapi/parser/cpdf_array_unittest.cpp84
-rw-r--r--core/fpdfapi/parser/fpdf_parser_decode.cpp2
4 files changed, 74 insertions, 32 deletions
diff --git a/core/fpdfapi/parser/cpdf_array.cpp b/core/fpdfapi/parser/cpdf_array.cpp
index 4caad10631..ea4ca7eaeb 100644
--- a/core/fpdfapi/parser/cpdf_array.cpp
+++ b/core/fpdfapi/parser/cpdf_array.cpp
@@ -136,14 +136,20 @@ CPDF_Array* CPDF_Array::GetArrayAt(size_t i) const {
return ToArray(GetDirectObjectAt(i));
}
-void CPDF_Array::RemoveAt(size_t i, size_t nCount) {
- if (i >= m_Objects.size())
- return;
+void CPDF_Array::RemoveAt(size_t i) {
+ if (i < m_Objects.size())
+ m_Objects.erase(m_Objects.begin() + i);
+}
+
+void CPDF_Array::Clear() {
+ m_Objects.clear();
+}
- if (nCount <= 0 || nCount > m_Objects.size() - i)
+void CPDF_Array::Truncate(size_t nNewSize) {
+ if (nNewSize >= m_Objects.size())
return;
- m_Objects.erase(m_Objects.begin() + i, m_Objects.begin() + i + nCount);
+ m_Objects.resize(nNewSize);
}
void CPDF_Array::ConvertToIndirectObjectAt(size_t i,
diff --git a/core/fpdfapi/parser/cpdf_array.h b/core/fpdfapi/parser/cpdf_array.h
index aff65d1454..bb17c0a427 100644
--- a/core/fpdfapi/parser/cpdf_array.h
+++ b/core/fpdfapi/parser/cpdf_array.h
@@ -99,7 +99,9 @@ class CPDF_Array : public CPDF_Object {
index, pdfium::MakeUnique<T>(m_pPool, std::forward<Args>(args)...)));
}
- void RemoveAt(size_t index, size_t nCount = 1);
+ void RemoveAt(size_t index);
+ void Clear();
+ void Truncate(size_t nNewSize);
void ConvertToIndirectObjectAt(size_t index, CPDF_IndirectObjectHolder* pDoc);
const_iterator begin() const { return m_Objects.begin(); }
diff --git a/core/fpdfapi/parser/cpdf_array_unittest.cpp b/core/fpdfapi/parser/cpdf_array_unittest.cpp
index 1e92b32716..006e5fad33 100644
--- a/core/fpdfapi/parser/cpdf_array_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_array_unittest.cpp
@@ -14,52 +14,85 @@
TEST(cpdf_array, RemoveAt) {
{
- int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+ const int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->AddNew<CPDF_Number>(elems[i]);
- arr->RemoveAt(3, 3);
- int expected[] = {1, 2, 3, 7, 8, 9, 10};
- EXPECT_EQ(FX_ArraySize(expected), arr->GetCount());
+ for (size_t i = 0; i < 3; ++i)
+ arr->RemoveAt(3);
+ const int expected[] = {1, 2, 3, 7, 8, 9, 10};
+ ASSERT_EQ(FX_ArraySize(expected), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(expected); ++i)
EXPECT_EQ(expected[i], arr->GetIntegerAt(i));
- arr->RemoveAt(4, 2);
- int expected2[] = {1, 2, 3, 7, 10};
- EXPECT_EQ(FX_ArraySize(expected2), arr->GetCount());
+ arr->RemoveAt(4);
+ arr->RemoveAt(4);
+ const int expected2[] = {1, 2, 3, 7, 10};
+ ASSERT_EQ(FX_ArraySize(expected2), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(expected2); ++i)
EXPECT_EQ(expected2[i], arr->GetIntegerAt(i));
}
{
- // When the range is out of bound, RemoveAt has no effect.
- int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+ // When the range is out of bound, RemoveAt() has no effect.
+ const int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->AddNew<CPDF_Number>(elems[i]);
- arr->RemoveAt(8, 5);
+ arr->RemoveAt(11);
EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
+ }
+}
+
+TEST(cpdf_array, Clear) {
+ const int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+ auto arr = pdfium::MakeUnique<CPDF_Array>();
+ EXPECT_EQ(0U, arr->GetCount());
+ for (size_t i = 0; i < FX_ArraySize(elems); ++i)
+ arr->AddNew<CPDF_Number>(elems[i]);
+ EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
+ arr->Clear();
+ EXPECT_EQ(0U, arr->GetCount());
+}
+
+TEST(cpdf_array, Truncate) {
+ {
+ const int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+ auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
- EXPECT_EQ(elems[i], arr->GetIntegerAt(i));
- arr->RemoveAt(0, 12);
- EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
- arr->RemoveAt(11, 1);
+ arr->AddNew<CPDF_Number>(elems[i]);
+ arr->Truncate(4);
+ const int expected[] = {1, 2, 3, 4};
+ ASSERT_EQ(FX_ArraySize(expected), arr->GetCount());
+ for (size_t i = 0; i < FX_ArraySize(expected); ++i)
+ EXPECT_EQ(expected[i], arr->GetIntegerAt(i));
+ arr->Truncate(0);
+ EXPECT_EQ(0U, arr->GetCount());
+ }
+ {
+ // When the range is out of bound, Truncate() has no effect.
+ // It does not try to grow the array.
+ const int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+ auto arr = pdfium::MakeUnique<CPDF_Array>();
+ for (size_t i = 0; i < FX_ArraySize(elems); ++i)
+ arr->AddNew<CPDF_Number>(elems[i]);
+ arr->Truncate(11);
EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
}
}
TEST(cpdf_array, InsertAt) {
{
- int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+ const int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->InsertNewAt<CPDF_Number>(i, elems[i]);
- EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
+ ASSERT_EQ(FX_ArraySize(elems), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
EXPECT_EQ(elems[i], arr->GetIntegerAt(i));
arr->InsertNewAt<CPDF_Number>(3, 33);
arr->InsertNewAt<CPDF_Number>(6, 55);
arr->InsertNewAt<CPDF_Number>(12, 12);
- int expected[] = {1, 2, 3, 33, 4, 5, 55, 6, 7, 8, 9, 10, 12};
- EXPECT_EQ(FX_ArraySize(expected), arr->GetCount());
+ const int expected[] = {1, 2, 3, 33, 4, 5, 55, 6, 7, 8, 9, 10, 12};
+ ASSERT_EQ(FX_ArraySize(expected), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(expected); ++i)
EXPECT_EQ(expected[i], arr->GetIntegerAt(i));
}
@@ -67,12 +100,12 @@ TEST(cpdf_array, InsertAt) {
// When the position to insert is beyond the upper bound,
// an element is inserted at that position while other unfilled
// positions have nullptr.
- int elems[] = {1, 2};
+ const int elems[] = {1, 2};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->InsertNewAt<CPDF_Number>(i, elems[i]);
arr->InsertNewAt<CPDF_Number>(10, 10);
- EXPECT_EQ(11u, arr->GetCount());
+ ASSERT_EQ(11u, arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
EXPECT_EQ(elems[i], arr->GetIntegerAt(i));
for (size_t i = FX_ArraySize(elems); i < 10; ++i)
@@ -84,12 +117,12 @@ TEST(cpdf_array, InsertAt) {
TEST(cpdf_array, Clone) {
{
// Basic case.
- int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+ const int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->InsertNewAt<CPDF_Number>(i, elems[i]);
std::unique_ptr<CPDF_Array> arr2 = ToArray(arr->Clone());
- EXPECT_EQ(arr->GetCount(), arr2->GetCount());
+ ASSERT_EQ(arr->GetCount(), arr2->GetCount());
for (size_t i = 0; i < FX_ArraySize(elems); ++i) {
// Clone() always create new objects.
EXPECT_NE(arr->GetObjectAt(i), arr2->GetObjectAt(i));
@@ -100,7 +133,7 @@ TEST(cpdf_array, Clone) {
// Clone() with and without dereferencing reference objects.
static const size_t kNumOfRows = 3;
static const size_t kNumOfRowElems = 5;
- int elems[kNumOfRows][kNumOfRowElems] = {
+ const int elems[kNumOfRows][kNumOfRowElems] = {
{1, 2, 3, 4, 5}, {10, 9, 8, 7, 6}, {11, 12, 13, 14, 15}};
auto arr = pdfium::MakeUnique<CPDF_Array>();
// Indirect references to indirect objects.
@@ -121,10 +154,10 @@ TEST(cpdf_array, Clone) {
// Not dereferencing reference objects means just creating new references
// instead of new copies of direct objects.
std::unique_ptr<CPDF_Array> arr1 = ToArray(arr->Clone());
- EXPECT_EQ(arr->GetCount(), arr1->GetCount());
+ ASSERT_EQ(arr->GetCount(), arr1->GetCount());
// Dereferencing reference objects creates new copies of direct objects.
std::unique_ptr<CPDF_Array> arr2 = ToArray(arr->CloneDirectObject());
- EXPECT_EQ(arr->GetCount(), arr2->GetCount());
+ ASSERT_EQ(arr->GetCount(), arr2->GetCount());
for (size_t i = 0; i < kNumOfRows; ++i) {
CPDF_Array* arr_elem = arr->GetObjectAt(i)->AsArray();
CPDF_Array* arr1_elem = arr1->GetObjectAt(i)->AsArray();
@@ -173,4 +206,5 @@ TEST(cpdf_array, Iterator) {
size_t index = 0;
for (const auto& it : *arr)
EXPECT_EQ(elems[index++], it->AsNumber()->GetInteger());
+ EXPECT_EQ(FX_ArraySize(elems), index);
}
diff --git a/core/fpdfapi/parser/fpdf_parser_decode.cpp b/core/fpdfapi/parser/fpdf_parser_decode.cpp
index 561b6627bc..3d7b9ffd59 100644
--- a/core/fpdfapi/parser/fpdf_parser_decode.cpp
+++ b/core/fpdfapi/parser/fpdf_parser_decode.cpp
@@ -400,7 +400,7 @@ bool PDF_DataDecode(const uint8_t* src_buf,
dest_buf = last_buf;
dest_size = last_size;
if (CPDF_Array* pDecoders = pDecoder->AsArray())
- pDecoders->RemoveAt(i + 1, pDecoders->GetCount() - i - 1);
+ pDecoders->Truncate(i + 1);
return true;
}
if (last_buf != src_buf) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 04:12:29 +0000