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fix(clang-tidy): Add cppcoreguidelines-init-vars,slicing, and throw-by-value-catch-by-reference checks (#3094)

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* clang-tidy: guard against more UB behavior

* Remove slicing check for now
This commit is contained in:
Aaron Gokaslan 2021-07-13 09:54:32 -04:00 committed by GitHub
parent 6a644c8f04
commit 25e470c57d
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 33 additions and 30 deletions
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4
.clang-tidy
View File

@ -1,10 +1,12 @@
FormatStyle: file
Checks: '
cppcoreguidelines-init-variables,
clang-analyzer-optin.cplusplus.VirtualCall,
llvm-namespace-comment,
misc-misplaced-const,
misc-static-assert,
misc-throw-by-value-catch-by-reference,
misc-uniqueptr-reset-release,
modernize-avoid-bind,
modernize-redundant-void-arg,
@ -33,6 +35,8 @@ readability-uniqueptr-delete-release,
'
CheckOptions:
- key: performance-for-range-copy.WarnOnAllAutoCopies
value: true
- key: performance-unnecessary-value-param.AllowedTypes
value: 'exception_ptr$;'

4
include/pybind11/eval.h
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@ -55,7 +55,7 @@ object eval(const str &expr, object global = globals(), object local = object())
this seems to be the only alternative */
std::string buffer = "# -*- coding: utf-8 -*-\n" + (std::string) expr;
int start;
int start = 0;
switch (mode) {
case eval_expr: start = Py_eval_input; break;
case eval_single_statement: start = Py_single_input; break;
@ -107,7 +107,7 @@ object eval_file(str fname, object global = globals(), object local = object())
detail::ensure_builtins_in_globals(global);
int start;
int start = 0;
switch (mode) {
case eval_expr: start = Py_eval_input; break;
case eval_single_statement: start = Py_single_input; break;

18
include/pybind11/pytypes.h
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@ -490,7 +490,7 @@ inline handle get_function(handle value) {
inline PyObject * dict_getitemstring(PyObject *v, const char *key)
{
#if PY_MAJOR_VERSION >= 3
PyObject *kv, *rv;
PyObject *kv = nullptr, *rv = nullptr;
kv = PyUnicode_FromString(key);
if (kv == NULL) {
throw error_already_set();
@ -1016,8 +1016,8 @@ public:
if (!temp)
pybind11_fail("Unable to extract string contents! (encoding issue)");
}
char *buffer;
ssize_t length;
char *buffer = nullptr;
ssize_t length = 0;
if (PYBIND11_BYTES_AS_STRING_AND_SIZE(temp.ptr(), &buffer, &length))
pybind11_fail("Unable to extract string contents! (invalid type)");
return std::string(buffer, (size_t) length);
@ -1072,8 +1072,8 @@ public:
explicit bytes(const pybind11::str &s);
operator std::string() const {
char *buffer;
ssize_t length;
char *buffer = nullptr;
ssize_t length = 0;
if (PYBIND11_BYTES_AS_STRING_AND_SIZE(m_ptr, &buffer, &length))
pybind11_fail("Unable to extract bytes contents!");
return std::string(buffer, (size_t) length);
@ -1090,8 +1090,8 @@ inline bytes::bytes(const pybind11::str &s) {
if (!temp)
pybind11_fail("Unable to extract string contents! (encoding issue)");
}
char *buffer;
ssize_t length;
char *buffer = nullptr;
ssize_t length = 0;
if (PYBIND11_BYTES_AS_STRING_AND_SIZE(temp.ptr(), &buffer, &length))
pybind11_fail("Unable to extract string contents! (invalid type)");
auto obj = reinterpret_steal<object>(PYBIND11_BYTES_FROM_STRING_AND_SIZE(buffer, length));
@ -1101,8 +1101,8 @@ inline bytes::bytes(const pybind11::str &s) {
}
inline str::str(const bytes& b) {
char *buffer;
ssize_t length;
char *buffer = nullptr;
ssize_t length = 0;
if (PYBIND11_BYTES_AS_STRING_AND_SIZE(b.ptr(), &buffer, &length))
pybind11_fail("Unable to extract bytes contents!");
auto obj = reinterpret_steal<object>(PyUnicode_FromStringAndSize(buffer, (ssize_t) length));

25
include/pybind11/stl_bind.h
View File

@ -217,9 +217,10 @@ void vector_modifiers(enable_if_t<is_copy_constructible<typename Vector::value_t
);
/// Slicing protocol
cl.def("__getitem__",
cl.def(
"__getitem__",
[](const Vector &v, slice slice) -> Vector * {
size_t start, stop, step, slicelength;
size_t start = 0, stop = 0, step = 0, slicelength = 0;
if (!slice.compute(v.size(), &start, &stop, &step, &slicelength))
throw error_already_set();
@ -234,12 +235,12 @@ void vector_modifiers(enable_if_t<is_copy_constructible<typename Vector::value_t
return seq;
},
arg("s"),
"Retrieve list elements using a slice object"
);
"Retrieve list elements using a slice object");
cl.def("__setitem__",
cl.def(
"__setitem__",
[](Vector &v, slice slice, const Vector &value) {
size_t start, stop, step, slicelength;
size_t start = 0, stop = 0, step = 0, slicelength = 0;
if (!slice.compute(v.size(), &start, &stop, &step, &slicelength))
throw error_already_set();
@ -251,8 +252,7 @@ void vector_modifiers(enable_if_t<is_copy_constructible<typename Vector::value_t
start += step;
}
},
"Assign list elements using a slice object"
);
"Assign list elements using a slice object");
cl.def("__delitem__",
[wrap_i](Vector &v, DiffType i) {
@ -262,9 +262,10 @@ void vector_modifiers(enable_if_t<is_copy_constructible<typename Vector::value_t
"Delete the list elements at index ``i``"
);
cl.def("__delitem__",
cl.def(
"__delitem__",
[](Vector &v, slice slice) {
size_t start, stop, step, slicelength;
size_t start = 0, stop = 0, step = 0, slicelength = 0;
if (!slice.compute(v.size(), &start, &stop, &step, &slicelength))
throw error_already_set();
@ -278,9 +279,7 @@ void vector_modifiers(enable_if_t<is_copy_constructible<typename Vector::value_t
}
}
},
"Delete list elements using a slice object"
);
"Delete list elements using a slice object");
}
// If the type has an operator[] that doesn't return a reference (most notably std::vector<bool>),

2
tests/test_eval.cpp
View File

@ -66,7 +66,7 @@ TEST_SUBMODULE(eval_, m) {
auto local = py::dict();
local["y"] = py::int_(43);
int val_out;
int val_out = 0;
local["call_test2"] = py::cpp_function([&](int value) { val_out = value; });
auto result = py::eval_file(std::move(filename), global, local);

2
tests/test_numpy_vectorize.cpp
View File

@ -92,7 +92,7 @@ TEST_SUBMODULE(numpy_vectorize, m) {
[](const py::array_t<int, py::array::forcecast> &arg1,
const py::array_t<float, py::array::forcecast> &arg2,
const py::array_t<double, py::array::forcecast> &arg3) {
py::ssize_t ndim;
py::ssize_t ndim = 0;
std::vector<py::ssize_t> shape;
std::array<py::buffer_info, 3> buffers{
{arg1.request(), arg2.request(), arg3.request()}};

6
tests/test_sequences_and_iterators.cpp
View File

@ -84,7 +84,7 @@ TEST_SUBMODULE(sequences_and_iterators, m) {
py::class_<Sliceable>(m, "Sliceable")
.def(py::init<int>())
.def("__getitem__", [](const Sliceable &s, const py::slice &slice) {
py::ssize_t start, stop, step, slicelength;
py::ssize_t start = 0, stop = 0, step = 0, slicelength = 0;
if (!slice.compute(s.size, &start, &stop, &step, &slicelength))
throw py::error_already_set();
int istart = static_cast<int>(start);
@ -204,7 +204,7 @@ TEST_SUBMODULE(sequences_and_iterators, m) {
/// Slicing protocol (optional)
.def("__getitem__",
[](const Sequence &s, const py::slice &slice) -> Sequence * {
size_t start, stop, step, slicelength;
size_t start = 0, stop = 0, step = 0, slicelength = 0;
if (!slice.compute(s.size(), &start, &stop, &step, &slicelength))
throw py::error_already_set();
auto *seq = new Sequence(slicelength);
@ -216,7 +216,7 @@ TEST_SUBMODULE(sequences_and_iterators, m) {
})
.def("__setitem__",
[](Sequence &s, const py::slice &slice, const Sequence &value) {
size_t start, stop, step, slicelength;
size_t start = 0, stop = 0, step = 0, slicelength = 0;
if (!slice.compute(s.size(), &start, &stop, &step, &slicelength))
throw py::error_already_set();
if (slicelength != value.size())