/src/qpdf/libqpdf/QPDF_Array.cc

Source (jump to first uncovered line)
#include <qpdf/QPDFObjectHandle_private.hh>

#include <qpdf/QTC.hh>

#include <array>
#include <utility>

using namespace std::literals;
using namespace qpdf;

static const QPDFObjectHandle null_oh = QPDFObjectHandle::newNull();

static size_t
to_s(int n)
{
    return static_cast<size_t>(n);
}

static int
to_i(size_t n)
{
    return static_cast<int>(n);
}

inline void
Array::checkOwnership(QPDFObjectHandle const& item) const
{
    if (!item) {
        throw std::logic_error("Attempting to add an uninitialized object to a QPDF_Array.");
    }
    if (qpdf() && item.qpdf() && qpdf() != item.qpdf()) {
        throw std::logic_error(
            "Attempting to add an object from a different QPDF. Use "
            "QPDF::copyForeignObject to add objects from another file.");
    }
}

QPDF_Array::QPDF_Array(std::vector<QPDFObjectHandle>&& v, bool sparse)
{
    if (sparse) {
        sp = std::make_unique<Sparse>();
        for (auto& item: v) {
            if (item.raw_type_code() != ::ot_null || item.indirect()) {
                sp->elements[sp->size] = std::move(item);
            }
            ++sp->size;
        }
    } else {
        elements = std::move(v);
    }
}

QPDF_Array*
Array::array() const
{
    if (auto a = as<QPDF_Array>()) {
        return a;
    }

    throw std::runtime_error("Expected an array but found a non-array object");
    return nullptr; // unreachable
}

Array::Array(bool empty) :
    BaseHandle(empty ? QPDFObject::create<QPDF_Array>() : nullptr)
{
}

Array::Array(std::vector<QPDFObjectHandle> const& items) :
    BaseHandle(QPDFObject::create<QPDF_Array>(items))
{
}

Array::Array(std::vector<QPDFObjectHandle>&& items) :
    BaseHandle(QPDFObject::create<QPDF_Array>(std::move(items)))
{
}

Array::iterator
Array::begin()
{
    if (auto a = as<QPDF_Array>()) {
        if (!a->sp) {
            return a->elements.begin();
        }
        if (!sp_elements) {
            sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
        }
        return sp_elements->begin();
    }
    return {};
}

Array::iterator
Array::end()
{
    if (auto a = as<QPDF_Array>()) {
        if (!a->sp) {
            return a->elements.end();
        }
        if (!sp_elements) {
            sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
        }
        return sp_elements->end();
    }
    return {};
}

Array::const_iterator
Array::cbegin()
{
    if (auto a = as<QPDF_Array>()) {
        if (!a->sp) {
            return a->elements.cbegin();
        }
        if (!sp_elements) {
            sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
        }
        return sp_elements->cbegin();
    }
    return {};
}

Array::const_iterator
Array::cend()
{
    if (auto a = as<QPDF_Array>()) {
        if (!a->sp) {
            return a->elements.cend();
        }
        if (!sp_elements) {
            sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
        }
        return sp_elements->cend();
    }
    return {};
}

Array::const_reverse_iterator
Array::crbegin()
{
    if (auto a = as<QPDF_Array>()) {
        if (!a->sp) {
            return a->elements.crbegin();
        }
        if (!sp_elements) {
            sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
        }
        return sp_elements->crbegin();
    }
    return {};
}

Array::const_reverse_iterator
Array::crend()
{
    if (auto a = as<QPDF_Array>()) {
        if (!a->sp) {
            return a->elements.crend();
        }
        if (!sp_elements) {
            sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
        }
        return sp_elements->crend();
    }
    return {};
}

QPDFObjectHandle
Array::null() const
{
    return null_oh;
}

size_t
Array::size() const
{
    if (auto a = as<QPDF_Array>()) {
        return a->sp ? a->sp->size : a->elements.size();
    }
    return 0;
}

QPDFObjectHandle const&
Array::operator[](size_t n) const
{
    static const QPDFObjectHandle null_obj;
    auto a = as<QPDF_Array>();
    if (!a) {
        return null_obj;
    }
    if (a->sp) {
        auto const& iter = a->sp->elements.find(n);
        return iter == a->sp->elements.end() ? null_obj : iter->second;
    }
    return n >= a->elements.size() ? null_obj : a->elements[n];
}

QPDFObjectHandle const&
Array::operator[](int n) const
{
    static const QPDFObjectHandle null_obj;
    if (n < 0) {
        return null_obj;
    }
    return (*this)[static_cast<size_t>(n)];
}

QPDFObjectHandle
Array::get(size_t n) const
{
    if (n >= size()) {
        return {};
    }
    auto a = array();
    if (!a->sp) {
        return a->elements[n];
    }
    auto const& iter = a->sp->elements.find(n);
    return iter == a->sp->elements.end() ? null() : iter->second;
}

QPDFObjectHandle
Array::get(int n) const
{
    if (n < 0) {
        return {};
    }
    return get(to_s(n));
}

std::vector<QPDFObjectHandle>
Array::getAsVector() const
{
    auto a = array();
    if (a->sp) {
        std::vector<QPDFObjectHandle> v;
        v.reserve(size());
        for (auto const& item: a->sp->elements) {
            v.resize(item.first, null_oh);
            v.emplace_back(item.second);
        }
        v.resize(size(), null_oh);
        return v;
    } else {
        return a->elements;
    }
}

bool
Array::set(size_t at, QPDFObjectHandle const& oh)
{
    if (at >= size()) {
        return false;
    }
    auto a = array();
    checkOwnership(oh);
    if (a->sp) {
        a->sp->elements[at] = oh;
    } else {
        a->elements[at] = oh;
    }
    return true;
}

bool
Array::set(int at, QPDFObjectHandle const& oh)
{
    if (at < 0) {
        return false;
    }
    return set(to_s(at), oh);
}

void
Array::setFromVector(std::vector<QPDFObjectHandle> const& v)
{
    auto a = array();
    a->elements.resize(0);
    a->elements.reserve(v.size());
    for (auto const& item: v) {
        checkOwnership(item);
        a->elements.emplace_back(item);
    }
}

bool
Array::insert(size_t at, QPDFObjectHandle const& item)
{
    auto a = array();
    size_t sz = size();
    if (at > sz) {
        return false;
    }
    checkOwnership(item);
    if (at == sz) {
        // As special case, also allow insert beyond the end
        push_back(item);
        return true;
    }
    if (!a->sp) {
        a->elements.insert(a->elements.cbegin() + to_i(at), item);
        return true;
    }
    auto iter = a->sp->elements.crbegin();
    while (iter != a->sp->elements.crend()) {
        auto key = (iter++)->first;
        if (key >= at) {
            auto nh = a->sp->elements.extract(key);
            ++nh.key();
            a->sp->elements.insert(std::move(nh));
        } else {
            break;
        }
    }
    a->sp->elements[at] = item;
    ++a->sp->size;
    return true;
}

bool
Array::insert(int at_i, QPDFObjectHandle const& item)
{
    if (at_i < 0) {
        return false;
    }
    return insert(to_s(at_i), item);
}

void
Array::push_back(QPDFObjectHandle const& item)
{
    auto a = array();
    checkOwnership(item);
    if (a->sp) {
        a->sp->elements[(a->sp->size)++] = item;
    } else {
        a->elements.emplace_back(item);
    }
}

bool
Array::erase(size_t at)
{
    auto a = array();
    if (at >= size()) {
        return false;
    }
    if (!a->sp) {
        a->elements.erase(a->elements.cbegin() + to_i(at));
        return true;
    }
    auto end = a->sp->elements.end();
    if (auto iter = a->sp->elements.lower_bound(at); iter != end) {
        if (iter->first == at) {
            iter++;
            a->sp->elements.erase(at);
        }

        while (iter != end) {
            auto nh = a->sp->elements.extract(iter++);
            --nh.key();
            a->sp->elements.insert(std::move(nh));
        }
    }
    --(a->sp->size);
    return true;
}

bool
Array::erase(int at_i)
{
    if (at_i < 0) {
        return false;
    }
    return erase(to_s(at_i));
}

int
QPDFObjectHandle::getArrayNItems() const
{
    auto s = size();
    if (s > 1 || isArray()) {
        return to_i(s);
    }
    typeWarning("array", "treating as empty");
    return 0;
}

QPDFObjectHandle
QPDFObjectHandle::getArrayItem(int n) const
{
    if (auto array = Array(*this)) {
        if (auto result = array[n]) {
            return result;
        }
        if (n >= 0 && std::cmp_less(n, array.size())) {
            // sparse array null
            return newNull();
        }
        objectWarning("returning null for out of bounds array access");

    } else {
        typeWarning("array", "returning null");
    }
    static auto constexpr msg = " -> null returned from invalid array access"sv;
    return QPDF_Null::create(obj, msg, "");
}

bool
QPDFObjectHandle::isRectangle() const
{
    Array array(*this);
    for (auto const& oh: array) {
        if (!oh.isNumber()) {
            return false;
        }
    }
    return array.size() == 4;
}

bool
QPDFObjectHandle::isMatrix() const
{
    Array array(*this);
    for (auto const& oh: array) {
        if (!oh.isNumber()) {
            return false;
        }
    }
    return array.size() == 6;
}

QPDFObjectHandle::Rectangle
QPDFObjectHandle::getArrayAsRectangle() const
{
    Array array(*this);
    if (array.size() != 4) {
        return {};
    }
    std::array<double, 4> items;
    for (size_t i = 0; i < 4; ++i) {
        if (!array[i].getValueAsNumber(items[i])) {
            return {};
        }
    }
    return {
        std::min(items[0], items[2]),
        std::min(items[1], items[3]),
        std::max(items[0], items[2]),
        std::max(items[1], items[3])};
}

QPDFObjectHandle::Matrix
QPDFObjectHandle::getArrayAsMatrix() const
{
    Array array(*this);
    if (array.size() != 6) {
        return {};
    }
    std::array<double, 6> items;
    for (size_t i = 0; i < 6; ++i) {
        if (!array[i].getValueAsNumber(items[i])) {
            return {};
        }
    }
    return {items[0], items[1], items[2], items[3], items[4], items[5]};
}

std::vector<QPDFObjectHandle>
QPDFObjectHandle::getArrayAsVector() const
{
    if (auto array = as_array(strict)) {
        return array.getAsVector();
    }
    typeWarning("array", "treating as empty");
    QTC::TC("qpdf", "QPDFObjectHandle array treating as empty vector");
    return {};
}

void
QPDFObjectHandle::setArrayItem(int n, QPDFObjectHandle const& item)
{
    if (auto array = as_array(strict)) {
        if (!array.set(n, item)) {
            objectWarning("ignoring attempt to set out of bounds array item");
        }
    } else {
        typeWarning("array", "ignoring attempt to set item");
    }
}
void
QPDFObjectHandle::setArrayFromVector(std::vector<QPDFObjectHandle> const& items)
{
    if (auto array = as_array(strict)) {
        array.setFromVector(items);
    } else {
        typeWarning("array", "ignoring attempt to replace items");
        QTC::TC("qpdf", "QPDFObjectHandle array ignoring replace items");
    }
}

void
QPDFObjectHandle::insertItem(int at, QPDFObjectHandle const& item)
{
    if (auto array = as_array(strict)) {
        if (!array.insert(at, item)) {
            objectWarning("ignoring attempt to insert out of bounds array item");
            QTC::TC("qpdf", "QPDFObjectHandle insert array bounds");
        }
    } else {
        typeWarning("array", "ignoring attempt to insert item");
        QTC::TC("qpdf", "QPDFObjectHandle array ignoring insert item");
    }
}

QPDFObjectHandle
QPDFObjectHandle::insertItemAndGetNew(int at, QPDFObjectHandle const& item)
{
    insertItem(at, item);
    return item;
}

void
QPDFObjectHandle::appendItem(QPDFObjectHandle const& item)
{
    if (auto array = as_array(strict)) {
        array.push_back(item);
    } else {
        typeWarning("array", "ignoring attempt to append item");
        QTC::TC("qpdf", "QPDFObjectHandle array ignoring append item");
    }
}

QPDFObjectHandle
QPDFObjectHandle::appendItemAndGetNew(QPDFObjectHandle const& item)
{
    appendItem(item);
    return item;
}

void
QPDFObjectHandle::eraseItem(int at)
{
    if (auto array = as_array(strict)) {
        if (!array.erase(at)) {
            objectWarning("ignoring attempt to erase out of bounds array item");
            QTC::TC("qpdf", "QPDFObjectHandle erase array bounds");
        }
    } else {
        typeWarning("array", "ignoring attempt to erase item");
        QTC::TC("qpdf", "QPDFObjectHandle array ignoring erase item");
    }
}

QPDFObjectHandle
QPDFObjectHandle::eraseItemAndGetOld(int at)
{
    auto result = Array(*this)[at];
    eraseItem(at);
    return result ? result : newNull();
}

size_t
BaseHandle::size() const
{
    switch (resolved_type_code()) {
    case ::ot_array:
        return as<QPDF_Array>()->size();
    case ::ot_uninitialized:
    case ::ot_reserved:
    case ::ot_null:
    case ::ot_destroyed:
    case ::ot_unresolved:
    case ::ot_reference:
        return 0;
    case ::ot_boolean:
    case ::ot_integer:
    case ::ot_real:
    case ::ot_string:
    case ::ot_name:
    case ::ot_dictionary:
    case ::ot_stream:
    case ::ot_inlineimage:
    case ::ot_operator:
        return 1;
    default:
        throw std::logic_error("Unexpected type code in size"); // unreachable
        return 0;                                               // unreachable
    }
}

QPDFObjectHandle
BaseHandle::operator[](size_t n) const
{
    if (resolved_type_code() == ::ot_array) {
        return Array(obj)[n];
    }
    if (n < size()) {
        return *this;
    }
    return {};
}

QPDFObjectHandle
BaseHandle::operator[](int n) const
{
    if (n < 0) {
        return {};
    }
    return (*this)[static_cast<size_t>(n)];
}

Coverage Report

Created: 2025-08-26 07:09

Line	Count	Source (jump to first uncovered line)
1		#include <qpdf/QPDFObjectHandle_private.hh>
2
3		#include <qpdf/QTC.hh>
4
5		#include <array>
6		#include <utility>
7
8		using namespace std::literals;
9		using namespace qpdf;
10
11		static const QPDFObjectHandle null_oh = QPDFObjectHandle::newNull();
12
13		static size_t
14		to_s(int n)
15	301	{
16	301	return static_cast<size_t>(n);
17	301	}
18
19		static int
20		to_i(size_t n)
21	69.8k	{
22	69.8k	return static_cast<int>(n);
23	69.8k	}
24
25		inline void
26		Array::checkOwnership(QPDFObjectHandle const& item) const
27	0	{
28	0	if (!item) {
29	0	throw std::logic_error("Attempting to add an uninitialized object to a QPDF_Array.");
30	0	}
31	0	if (qpdf() && item.qpdf() && qpdf() != item.qpdf()) {
32	0	throw std::logic_error(
33	0	"Attempting to add an object from a different QPDF. Use "
34	0	"QPDF::copyForeignObject to add objects from another file.");
35	0	}
36	0	}
37
38		QPDF_Array::QPDF_Array(std::vector<QPDFObjectHandle>&& v, bool sparse)
39	698	{
40	698	if (sparse) {
41	460	sp = std::make_unique<Sparse>();
42	7.24M	for (auto& item: v) {
43	7.24M	if (item.raw_type_code() != ::ot_null \|\| item.indirect()) {
44	7.11M	sp->elements[sp->size] = std::move(item);
45	7.11M	}
46	7.24M	++sp->size;
47	7.24M	}
48	460	} else {
49	238	elements = std::move(v);
50	238	}
51	698	}
52
53		QPDF_Array*
54		Array::array() const
55	13.4k	{
56	13.4k	if (auto a = as<QPDF_Array>()) {
57	13.4k	return a;
58	13.4k	}
59
60	0	throw std::runtime_error("Expected an array but found a non-array object");
61	0	return nullptr; // unreachable
62	13.4k	}
63
64		Array::Array(bool empty) :
65	0	BaseHandle(empty ? QPDFObject::create<QPDF_Array>() : nullptr)
66	0	{
67	0	}
68
69		Array::Array(std::vector<QPDFObjectHandle> const& items) :
70	0	BaseHandle(QPDFObject::create<QPDF_Array>(items))
71	0	{
72	0	}
73
74		Array::Array(std::vector<QPDFObjectHandle>&& items) :
75	0	BaseHandle(QPDFObject::create<QPDF_Array>(std::move(items)))
76	0	{
77	0	}
78
79		Array::iterator
80		Array::begin()
81	232k	{
82	232k	if (auto a = as<QPDF_Array>()) {
83	215k	if (!a->sp) {
84	215k	return a->elements.begin();
85	215k	}
86	679	if (!sp_elements) {
87	679	sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
88	679	}
89	679	return sp_elements->begin();
90	215k	}
91	16.9k	return {};
92	232k	}
93
94		Array::iterator
95		Array::end()
96	232k	{
97	232k	if (auto a = as<QPDF_Array>()) {
98	215k	if (!a->sp) {
99	215k	return a->elements.end();
100	215k	}
101	679	if (!sp_elements) {
102	0	sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
103	0	}
104	679	return sp_elements->end();
105	215k	}
106	16.9k	return {};
107	232k	}
108
109		Array::const_iterator
110		Array::cbegin()
111	0	{
112	0	if (auto a = as<QPDF_Array>()) {
113	0	if (!a->sp) {
114	0	return a->elements.cbegin();
115	0	}
116	0	if (!sp_elements) {
117	0	sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
118	0	}
119	0	return sp_elements->cbegin();
120	0	}
121	0	return {};
122	0	}
123
124		Array::const_iterator
125		Array::cend()
126	0	{
127	0	if (auto a = as<QPDF_Array>()) {
128	0	if (!a->sp) {
129	0	return a->elements.cend();
130	0	}
131	0	if (!sp_elements) {
132	0	sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
133	0	}
134	0	return sp_elements->cend();
135	0	}
136	0	return {};
137	0	}
138
139		Array::const_reverse_iterator
140		Array::crbegin()
141	7.60M	{
142	7.60M	if (auto a = as<QPDF_Array>()) {
143	19.2k	if (!a->sp) {
144	19.1k	return a->elements.crbegin();
145	19.1k	}
146	68	if (!sp_elements) {
147	68	sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
148	68	}
149	68	return sp_elements->crbegin();
150	19.2k	}
151	7.58M	return {};
152	7.60M	}
153
154		Array::const_reverse_iterator
155		Array::crend()
156	7.60M	{
157	7.60M	if (auto a = as<QPDF_Array>()) {
158	19.2k	if (!a->sp) {
159	19.1k	return a->elements.crend();
160	19.1k	}
161	68	if (!sp_elements) {
162	0	sp_elements = std::make_unique<std::vector<QPDFObjectHandle>>(getAsVector());
163	0	}
164	68	return sp_elements->crend();
165	19.2k	}
166	7.58M	return {};
167	7.60M	}
168
169		QPDFObjectHandle
170		Array::null() const
171	0	{
172	0	return null_oh;
173	0	}
174
175		size_t
176		Array::size() const
177	45.7k	{
178	45.7k	if (auto a = as<QPDF_Array>()) {
179	29.4k	return a->sp ? a->sp->size : a->elements.size();
180	29.4k	}
181	16.2k	return 0;
182	45.7k	}
183
184		QPDFObjectHandle const&
185		Array::operator[](size_t n) const
186	103k	{
187	103k	static const QPDFObjectHandle null_obj;
188	103k	auto a = as<QPDF_Array>();
189	103k	if (!a) {
190	0	return null_obj;
191	0	}
192	103k	if (a->sp) {
193	22.6k	auto const& iter = a->sp->elements.find(n);
194	22.6k	return iter == a->sp->elements.end() ? null_obj : iter->second;
195	22.6k	}
196	81.0k	return n >= a->elements.size() ? null_obj : a->elements[n];
197	103k	}
198
199		QPDFObjectHandle const&
200		Array::operator[](int n) const
201	103k	{
202	103k	static const QPDFObjectHandle null_obj;
203	103k	if (n < 0) {
204	0	return null_obj;
205	0	}
206	103k	return (*this)[static_cast<size_t>(n)];
207	103k	}
208
209		QPDFObjectHandle
210		Array::get(size_t n) const
211	127	{
212	127	if (n >= size()) {
213	0	return {};
214	0	}
215	127	auto a = array();
216	127	if (!a->sp) {
217	127	return a->elements[n];
218	127	}
219	0	auto const& iter = a->sp->elements.find(n);
220	0	return iter == a->sp->elements.end() ? null() : iter->second;
221	127	}
222
223		QPDFObjectHandle
224		Array::get(int n) const
225	127	{
226	127	if (n < 0) {
227	0	return {};
228	0	}
229	127	return get(to_s(n));
230	127	}
231
232		std::vector<QPDFObjectHandle>
233		Array::getAsVector() const
234	13.1k	{
235	13.1k	auto a = array();
236	13.1k	if (a->sp) {
237	802	std::vector<QPDFObjectHandle> v;
238	802	v.reserve(size());
239	21.8M	for (auto const& item: a->sp->elements) {
240	21.8M	v.resize(item.first, null_oh);
241	21.8M	v.emplace_back(item.second);
242	21.8M	}
243	802	v.resize(size(), null_oh);
244	802	return v;
245	12.3k	} else {
246	12.3k	return a->elements;
247	12.3k	}
248	13.1k	}
249
250		bool
251		Array::set(size_t at, QPDFObjectHandle const& oh)
252	0	{
253	0	if (at >= size()) {
254	0	return false;
255	0	}
256	0	auto a = array();
257	0	checkOwnership(oh);
258	0	if (a->sp) {
259	0	a->sp->elements[at] = oh;
260	0	} else {
261	0	a->elements[at] = oh;
262	0	}
263	0	return true;
264	0	}
265
266		bool
267		Array::set(int at, QPDFObjectHandle const& oh)
268	0	{
269	0	if (at < 0) {
270	0	return false;
271	0	}
272	0	return set(to_s(at), oh);
273	0	}
274
275		void
276		Array::setFromVector(std::vector<QPDFObjectHandle> const& v)
277	0	{
278	0	auto a = array();
279	0	a->elements.resize(0);
280	0	a->elements.reserve(v.size());
281	0	for (auto const& item: v) {
282	0	checkOwnership(item);
283	0	a->elements.emplace_back(item);
284	0	}
285	0	}
286
287		bool
288		Array::insert(size_t at, QPDFObjectHandle const& item)
289	0	{
290	0	auto a = array();
291	0	size_t sz = size();
292	0	if (at > sz) {
293	0	return false;
294	0	}
295	0	checkOwnership(item);
296	0	if (at == sz) {
297		// As special case, also allow insert beyond the end
298	0	push_back(item);
299	0	return true;
300	0	}
301	0	if (!a->sp) {
302	0	a->elements.insert(a->elements.cbegin() + to_i(at), item);
303	0	return true;
304	0	}
305	0	auto iter = a->sp->elements.crbegin();
306	0	while (iter != a->sp->elements.crend()) {
307	0	auto key = (iter++)->first;
308	0	if (key >= at) {
309	0	auto nh = a->sp->elements.extract(key);
310	0	++nh.key();
311	0	a->sp->elements.insert(std::move(nh));
312	0	} else {
313	0	break;
314	0	}
315	0	}
316	0	a->sp->elements[at] = item;
317	0	++a->sp->size;
318	0	return true;
319	0	}
320
321		bool
322		Array::insert(int at_i, QPDFObjectHandle const& item)
323	0	{
324	0	if (at_i < 0) {
325	0	return false;
326	0	}
327	0	return insert(to_s(at_i), item);
328	0	}
329
330		void
331		Array::push_back(QPDFObjectHandle const& item)
332	0	{
333	0	auto a = array();
334	0	checkOwnership(item);
335	0	if (a->sp) {
336	0	a->sp->elements[(a->sp->size)++] = item;
337	0	} else {
338	0	a->elements.emplace_back(item);
339	0	}
340	0	}
341
342		bool
343		Array::erase(size_t at)
344	174	{
345	174	auto a = array();
346	174	if (at >= size()) {
347	6	return false;
348	6	}
349	168	if (!a->sp) {
350	121	a->elements.erase(a->elements.cbegin() + to_i(at));
351	121	return true;
352	121	}
353	47	auto end = a->sp->elements.end();
354	47	if (auto iter = a->sp->elements.lower_bound(at); iter != end) {
355	47	if (iter->first == at) {
356	47	iter++;
357	47	a->sp->elements.erase(at);
358	47	}
359
360	19.4k	while (iter != end) {
361	19.3k	auto nh = a->sp->elements.extract(iter++);
362	19.3k	--nh.key();
363	19.3k	a->sp->elements.insert(std::move(nh));
364	19.3k	}
365	47	}
366	47	--(a->sp->size);
367	47	return true;
368	168	}
369
370		bool
371		Array::erase(int at_i)
372	174	{
373	174	if (at_i < 0) {
374	0	return false;
375	0	}
376	174	return erase(to_s(at_i));
377	174	}
378
379		int
380		QPDFObjectHandle::getArrayNItems() const
381	70.6k	{
382	70.6k	auto s = size();
383	70.6k	if (s > 1 \|\| isArray()) {
384	69.7k	return to_i(s);
385	69.7k	}
386	882	typeWarning("array", "treating as empty");
387	882	return 0;
388	70.6k	}
389
390		QPDFObjectHandle
391		QPDFObjectHandle::getArrayItem(int n) const
392	103k	{
393	103k	if (auto array = Array(*this)) {
394	103k	if (auto result = array[n]) {
395	82.8k	return result;
396	82.8k	}
397	20.8k	if (n >= 0 && std::cmp_less(n, array.size())) {
398		// sparse array null
399	20.8k	return newNull();
400	20.8k	}
401	1	objectWarning("returning null for out of bounds array access");
402
403	24	} else {
404	24	typeWarning("array", "returning null");
405	24	}
406	25	static auto constexpr msg = " -> null returned from invalid array access"sv;
407	25	return QPDF_Null::create(obj, msg, "");
408	103k	}
409
410		bool
411		QPDFObjectHandle::isRectangle() const
412	23.1k	{
413	23.1k	Array array(*this);
414	27.0k	for (auto const& oh: array) {
415	27.0k	if (!oh.isNumber()) {
416	361	return false;
417	361	}
418	27.0k	}
419	22.7k	return array.size() == 4;
420	23.1k	}
421
422		bool
423		QPDFObjectHandle::isMatrix() const
424	0	{
425	0	Array array(*this);
426	0	for (auto const& oh: array) {
427	0	if (!oh.isNumber()) {
428	0	return false;
429	0	}
430	0	}
431	0	return array.size() == 6;
432	0	}
433
434		QPDFObjectHandle::Rectangle
435		QPDFObjectHandle::getArrayAsRectangle() const
436	0	{
437	0	Array array(*this);
438	0	if (array.size() != 4) {
439	0	return {};
440	0	}
441	0	std::array<double, 4> items;
442	0	for (size_t i = 0; i < 4; ++i) {
443	0	if (!array[i].getValueAsNumber(items[i])) {
444	0	return {};
445	0	}
446	0	}
447	0	return {
448	0	std::min(items[0], items[2]),
449	0	std::min(items[1], items[3]),
450	0	std::max(items[0], items[2]),
451	0	std::max(items[1], items[3])};
452	0	}
453
454		QPDFObjectHandle::Matrix
455		QPDFObjectHandle::getArrayAsMatrix() const
456	0	{
457	0	Array array(*this);
458	0	if (array.size() != 6) {
459	0	return {};
460	0	}
461	0	std::array<double, 6> items;
462	0	for (size_t i = 0; i < 6; ++i) {
463	0	if (!array[i].getValueAsNumber(items[i])) {
464	0	return {};
465	0	}
466	0	}
467	0	return {items[0], items[1], items[2], items[3], items[4], items[5]};
468	0	}
469
470		std::vector<QPDFObjectHandle>
471		QPDFObjectHandle::getArrayAsVector() const
472	12.3k	{
473	12.3k	if (auto array = as_array(strict)) {
474	12.3k	return array.getAsVector();
475	12.3k	}
476	0	typeWarning("array", "treating as empty");
477	0	QTC::TC("qpdf", "QPDFObjectHandle array treating as empty vector");
478	0	return {};
479	12.3k	}
480
481		void
482		QPDFObjectHandle::setArrayItem(int n, QPDFObjectHandle const& item)
483	0	{
484	0	if (auto array = as_array(strict)) {
485	0	if (!array.set(n, item)) {
486	0	objectWarning("ignoring attempt to set out of bounds array item");
487	0	}
488	0	} else {
489	0	typeWarning("array", "ignoring attempt to set item");
490	0	}
491	0	}
492		void
493		QPDFObjectHandle::setArrayFromVector(std::vector<QPDFObjectHandle> const& items)
494	0	{
495	0	if (auto array = as_array(strict)) {
496	0	array.setFromVector(items);
497	0	} else {
498	0	typeWarning("array", "ignoring attempt to replace items");
499	0	QTC::TC("qpdf", "QPDFObjectHandle array ignoring replace items");
500	0	}
501	0	}
502
503		void
504		QPDFObjectHandle::insertItem(int at, QPDFObjectHandle const& item)
505	0	{
506	0	if (auto array = as_array(strict)) {
507	0	if (!array.insert(at, item)) {
508	0	objectWarning("ignoring attempt to insert out of bounds array item");
509	0	QTC::TC("qpdf", "QPDFObjectHandle insert array bounds");
510	0	}
511	0	} else {
512	0	typeWarning("array", "ignoring attempt to insert item");
513	0	QTC::TC("qpdf", "QPDFObjectHandle array ignoring insert item");
514	0	}
515	0	}
516
517		QPDFObjectHandle
518		QPDFObjectHandle::insertItemAndGetNew(int at, QPDFObjectHandle const& item)
519	0	{
520	0	insertItem(at, item);
521	0	return item;
522	0	}
523
524		void
525		QPDFObjectHandle::appendItem(QPDFObjectHandle const& item)
526	0	{
527	0	if (auto array = as_array(strict)) {
528	0	array.push_back(item);
529	0	} else {
530	0	typeWarning("array", "ignoring attempt to append item");
531	0	QTC::TC("qpdf", "QPDFObjectHandle array ignoring append item");
532	0	}
533	0	}
534
535		QPDFObjectHandle
536		QPDFObjectHandle::appendItemAndGetNew(QPDFObjectHandle const& item)
537	0	{
538	0	appendItem(item);
539	0	return item;
540	0	}
541
542		void
543		QPDFObjectHandle::eraseItem(int at)
544	264	{
545	264	if (auto array = as_array(strict)) {
546	174	if (!array.erase(at)) {
547	6	objectWarning("ignoring attempt to erase out of bounds array item");
548	6	QTC::TC("qpdf", "QPDFObjectHandle erase array bounds");
549	6	}
550	174	} else {
551	90	typeWarning("array", "ignoring attempt to erase item");
552	90	QTC::TC("qpdf", "QPDFObjectHandle array ignoring erase item");
553	90	}
554	264	}
555
556		QPDFObjectHandle
557		QPDFObjectHandle::eraseItemAndGetOld(int at)
558	0	{
559	0	auto result = Array(*this)[at];
560	0	eraseItem(at);
561	0	return result ? result : newNull();
562	0	}
563
564		size_t
565		BaseHandle::size() const
566	105k	{
567	105k	switch (resolved_type_code()) {
568	78.4k	case ::ot_array:
569	78.4k	return as<QPDF_Array>()->size();
570	0	case ::ot_uninitialized:
571	0	case ::ot_reserved:
572	26.1k	case ::ot_null:
573	26.1k	case ::ot_destroyed:
574	26.1k	case ::ot_unresolved:
575	26.1k	case ::ot_reference:
576	26.1k	return 0;
577	3	case ::ot_boolean:
578	29	case ::ot_integer:
579	35	case ::ot_real:
580	53	case ::ot_string:
581	938	case ::ot_name:
582	1.30k	case ::ot_dictionary:
583	1.31k	case ::ot_stream:
584	1.31k	case ::ot_inlineimage:
585	1.31k	case ::ot_operator:
586	1.31k	return 1;
587	0	default:
588	0	throw std::logic_error("Unexpected type code in size"); // unreachable
589	0	return 0; // unreachable
590	105k	}
591	105k	}
592
593		QPDFObjectHandle
594		BaseHandle::operator[](size_t n) const
595	0	{
596	0	if (resolved_type_code() == ::ot_array) {
597	0	return Array(obj)[n];
598	0	}
599	0	if (n < size()) {
600	0	return *this;
601	0	}
602	0	return {};
603	0	}
604
605		QPDFObjectHandle
606		BaseHandle::operator[](int n) const
607	0	{
608	0	if (n < 0) {
609	0	return {};
610	0	}
611	0	return (*this)[static_cast<size_t>(n)];
612	0	}