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fix(clang-tidy): Enable clang-tidy else-after-return and redundant void checks (#3080)

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* Enable clang-tidy else-after-return and redundant void checks

* Fix remaining else-after

* Address reviewer comments

* Fix indentation

* Rerun clang-tidy post merge
This commit is contained in:
Aaron Gokaslan 2021-07-09 09:45:53 -04:00 committed by GitHub
parent 6d1b197b46
commit b5357d1fa8
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GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 116 additions and 117 deletions
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3
.clang-tidy
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@ -1,11 +1,13 @@
FormatStyle: file
Checks: '
clang-analyzer-optin.cplusplus.VirtualCall,
llvm-namespace-comment,
misc-misplaced-const,
misc-static-assert,
misc-uniqueptr-reset-release,
modernize-avoid-bind,
modernize-redundant-void-arg,
modernize-replace-auto-ptr,
modernize-replace-disallow-copy-and-assign-macro,
modernize-shrink-to-fit,
@ -20,6 +22,7 @@ modernize-use-override,
modernize-use-using,
*performance*,
readability-container-size-empty,
readability-else-after-return,
readability-make-member-function-const,
readability-redundant-function-ptr-dereference,
readability-redundant-smartptr-get,

89
include/pybind11/cast.h
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@ -85,25 +85,28 @@ public:
operator std::reference_wrapper<type>() { return cast_op<type &>(subcaster); }
};
#define PYBIND11_TYPE_CASTER(type, py_name) \
protected: \
type value; \
public: \
static constexpr auto name = py_name; \
template <typename T_, enable_if_t<std::is_same<type, remove_cv_t<T_>>::value, int> = 0> \
static handle cast(T_ *src, return_value_policy policy, handle parent) { \
if (!src) return none().release(); \
if (policy == return_value_policy::take_ownership) { \
auto h = cast(std::move(*src), policy, parent); delete src; return h; \
} else { \
return cast(*src, policy, parent); \
} \
} \
operator type*() { return &value; } \
operator type&() { return value; } \
operator type&&() && { return std::move(value); } \
template <typename T_> using cast_op_type = pybind11::detail::movable_cast_op_type<T_>
#define PYBIND11_TYPE_CASTER(type, py_name) \
protected: \
type value; \
\
public: \
static constexpr auto name = py_name; \
template <typename T_, enable_if_t<std::is_same<type, remove_cv_t<T_>>::value, int> = 0> \
static handle cast(T_ *src, return_value_policy policy, handle parent) { \
if (!src) \
return none().release(); \
if (policy == return_value_policy::take_ownership) { \
auto h = cast(std::move(*src), policy, parent); \
delete src; \
return h; \
} \
return cast(*src, policy, parent); \
} \
operator type *() { return &value; } \
operator type &() { return value; } \
operator type &&() && { return std::move(value); } \
template <typename T_> \
using cast_op_type = pybind11::detail::movable_cast_op_type<T_>
template <typename CharT> using is_std_char_type = any_of<
std::is_same<CharT, char>, /* std::string */
@ -247,7 +250,8 @@ public:
bool load(handle h, bool) {
if (!h) {
return false;
} else if (h.is_none()) {
}
if (h.is_none()) {
value = nullptr;
return true;
}
@ -272,8 +276,7 @@ public:
static handle cast(const void *ptr, return_value_policy /* policy */, handle /* parent */) {
if (ptr)
return capsule(ptr).release();
else
return none().inc_ref();
return none().inc_ref();
}
template <typename T> using cast_op_type = void*&;
@ -289,9 +292,15 @@ template <> class type_caster<bool> {
public:
bool load(handle src, bool convert) {
if (!src) return false;
else if (src.ptr() == Py_True) { value = true; return true; }
else if (src.ptr() == Py_False) { value = false; return true; }
else if (convert || !std::strcmp("numpy.bool_", Py_TYPE(src.ptr())->tp_name)) {
if (src.ptr() == Py_True) {
value = true;
return true;
}
if (src.ptr() == Py_False) {
value = false;
return true;
}
if (convert || !std::strcmp("numpy.bool_", Py_TYPE(src.ptr())->tp_name)) {
// (allow non-implicit conversion for numpy booleans)
Py_ssize_t res = -1;
@ -315,9 +324,8 @@ public:
if (res == 0 || res == 1) {
value = (bool) res;
return true;
} else {
PyErr_Clear();
}
PyErr_Clear();
}
return false;
}
@ -351,7 +359,8 @@ template <typename StringType, bool IsView = false> struct string_caster {
handle load_src = src;
if (!src) {
return false;
} else if (!PyUnicode_Check(load_src.ptr())) {
}
if (!PyUnicode_Check(load_src.ptr())) {
#if PY_MAJOR_VERSION >= 3
return load_bytes(load_src);
#else
@ -554,10 +563,11 @@ public:
static handle cast(T *src, return_value_policy policy, handle parent) {
if (!src) return none().release();
if (policy == return_value_policy::take_ownership) {
auto h = cast(std::move(*src), policy, parent); delete src; return h;
} else {
return cast(*src, policy, parent);
auto h = cast(std::move(*src), policy, parent);
delete src;
return h;
}
return cast(*src, policy, parent);
}
static constexpr auto name = _("Tuple[") + concat(make_caster<Ts>::name...) + _("]");
@ -664,14 +674,14 @@ protected:
value = v_h.value_ptr();
holder = v_h.template holder<holder_type>();
return true;
} else {
throw cast_error("Unable to cast from non-held to held instance (T& to Holder<T>) "
#if defined(NDEBUG)
"(compile in debug mode for type information)");
#else
"of type '" + type_id<holder_type>() + "''");
#endif
}
throw cast_error("Unable to cast from non-held to held instance (T& to Holder<T>) "
#if defined(NDEBUG)
"(compile in debug mode for type information)");
#else
"of type '"
+ type_id<holder_type>() + "''");
#endif
}
template <typename T = holder_type, detail::enable_if_t<!std::is_constructible<T, const T &, type*>::value, int> = 0>
@ -917,8 +927,7 @@ template <typename T> detail::enable_if_t<detail::move_always<T>::value, T> cast
template <typename T> detail::enable_if_t<detail::move_if_unreferenced<T>::value, T> cast(object &&object) {
if (object.ref_count() > 1)
return cast<T>(object);
else
return move<T>(std::move(object));
return move<T>(std::move(object));
}
template <typename T> detail::enable_if_t<detail::move_never<T>::value, T> cast(object &&object) {
return cast<T>(object);

4
include/pybind11/chrono.h
View File

@ -53,11 +53,11 @@ public:
return true;
}
// If invoked with a float we assume it is seconds and convert
else if (PyFloat_Check(src.ptr())) {
if (PyFloat_Check(src.ptr())) {
value = type(duration_cast<duration<rep, period>>(duration<double>(PyFloat_AsDouble(src.ptr()))));
return true;
}
else return false;
return false;
}
// If this is a duration just return it back

4
include/pybind11/detail/class.h
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@ -162,9 +162,7 @@ extern "C" inline PyObject *pybind11_meta_getattro(PyObject *obj, PyObject *name
Py_INCREF(descr);
return descr;
}
else {
return PyType_Type.tp_getattro(obj, name);
}
return PyType_Type.tp_getattro(obj, name);
}
#endif

4
include/pybind11/detail/type_caster_base.h
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@ -670,7 +670,7 @@ public:
return true;
}
// Case 2: We have a derived class
else if (PyType_IsSubtype(srctype, typeinfo->type)) {
if (PyType_IsSubtype(srctype, typeinfo->type)) {
auto &bases = all_type_info(srctype);
bool no_cpp_mi = typeinfo->simple_type;
@ -687,7 +687,7 @@ public:
// Case 2b: the python type inherits from multiple C++ bases. Check the bases to see if
// we can find an exact match (or, for a simple C++ type, an inherited match); if so, we
// can safely reinterpret_cast to the relevant pointer.
else if (bases.size() > 1) {
if (bases.size() > 1) {
for (auto base : bases) {
if (no_cpp_mi ? PyType_IsSubtype(base->type, typeinfo->type) : base->type == typeinfo->type) {
this_.load_value(reinterpret_cast<instance *>(src.ptr())->get_value_and_holder(base));

9
include/pybind11/eigen.h
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@ -169,21 +169,18 @@ template <typename Type_> struct EigenProps {
return false; // Vector size mismatch
return {rows == 1 ? 1 : n, cols == 1 ? 1 : n, stride};
}
else if (fixed) {
if (fixed) {
// The type has a fixed size, but is not a vector: abort
return false;
}
else if (fixed_cols) {
if (fixed_cols) {
// Since this isn't a vector, cols must be != 1. We allow this only if it exactly
// equals the number of elements (rows is Dynamic, and so 1 row is allowed).
if (cols != n) return false;
return {1, n, stride};
}
else {
// Otherwise it's either fully dynamic, or column dynamic; both become a column vector
} // Otherwise it's either fully dynamic, or column dynamic; both become a column vector
if (fixed_rows && rows != n) return false;
return {n, 1, stride};
}
}
static constexpr bool show_writeable = is_eigen_dense_map<Type>::value && is_eigen_mutable_map<Type>::value;

3
include/pybind11/functional.h
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@ -98,8 +98,7 @@ public:
auto result = f_.template target<function_type>();
if (result)
return cpp_function(*result, policy).release();
else
return cpp_function(std::forward<Func>(f_), policy).release();
return cpp_function(std::forward<Func>(f_), policy).release();
}
PYBIND11_TYPE_CASTER(type, _("Callable[[") + concat(make_caster<Args>::name...) + _("], ")

6
include/pybind11/numpy.h
View File

@ -1340,9 +1340,8 @@ public:
if (++m_index[i] != m_shape[i]) {
increment_common_iterator(i);
break;
} else {
m_index[i] = 0;
}
m_index[i] = 0;
}
return *this;
}
@ -1493,8 +1492,7 @@ struct vectorize_returned_array {
static Type create(broadcast_trivial trivial, const std::vector<ssize_t> &shape) {
if (trivial == broadcast_trivial::f_trivial)
return array_t<Return, array::f_style>(shape);
else
return array_t<Return>(shape);
return array_t<Return>(shape);
}
static Return *mutable_data(Type &array) {

45
include/pybind11/pybind11.h
View File

@ -396,7 +396,7 @@ protected:
std::memset(rec->def, 0, sizeof(PyMethodDef));
rec->def->ml_name = rec->name;
rec->def->ml_meth
= reinterpret_cast<PyCFunction>(reinterpret_cast<void (*)(void)>(dispatcher));
= reinterpret_cast<PyCFunction>(reinterpret_cast<void (*)()>(dispatcher));
rec->def->ml_flags = METH_VARARGS | METH_KEYWORDS;
capsule rec_capsule(unique_rec.release(), [](void *ptr) {
@ -924,20 +924,20 @@ protected:
append_note_if_missing_header_is_suspected(msg);
PyErr_SetString(PyExc_TypeError, msg.c_str());
return nullptr;
} else if (!result) {
}
if (!result) {
std::string msg = "Unable to convert function return value to a "
"Python type! The signature was\n\t";
msg += it->signature;
append_note_if_missing_header_is_suspected(msg);
PyErr_SetString(PyExc_TypeError, msg.c_str());
return nullptr;
} else {
if (overloads->is_constructor && !self_value_and_holder.holder_constructed()) {
auto *pi = reinterpret_cast<instance *>(parent.ptr());
self_value_and_holder.type->init_instance(pi, nullptr);
}
return result.ptr();
}
if (overloads->is_constructor && !self_value_and_holder.holder_constructed()) {
auto *pi = reinterpret_cast<instance *>(parent.ptr());
self_value_and_holder.type->init_instance(pi, nullptr);
}
return result.ptr();
}
};
@ -1860,9 +1860,9 @@ PYBIND11_NOINLINE inline void keep_alive_impl(size_t Nurse, size_t Patient, func
auto get_arg = [&](size_t n) {
if (n == 0)
return ret;
else if (n == 1 && call.init_self)
if (n == 1 && call.init_self)
return call.init_self;
else if (n <= call.args.size())
if (n <= call.args.size())
return call.args[n - 1];
return handle();
};
@ -2186,18 +2186,19 @@ template <class T> function get_override(const T *this_ptr, const char *name) {
return tinfo ? detail::get_type_override(this_ptr, tinfo, name) : function();
}
#define PYBIND11_OVERRIDE_IMPL(ret_type, cname, name, ...) \
do { \
pybind11::gil_scoped_acquire gil; \
pybind11::function override = pybind11::get_override(static_cast<const cname *>(this), name); \
if (override) { \
auto o = override(__VA_ARGS__); \
if (pybind11::detail::cast_is_temporary_value_reference<ret_type>::value) { \
static pybind11::detail::override_caster_t<ret_type> caster; \
return pybind11::detail::cast_ref<ret_type>(std::move(o), caster); \
} \
else return pybind11::detail::cast_safe<ret_type>(std::move(o)); \
} \
#define PYBIND11_OVERRIDE_IMPL(ret_type, cname, name, ...) \
do { \
pybind11::gil_scoped_acquire gil; \
pybind11::function override \
= pybind11::get_override(static_cast<const cname *>(this), name); \
if (override) { \
auto o = override(__VA_ARGS__); \
if (pybind11::detail::cast_is_temporary_value_reference<ret_type>::value) { \
static pybind11::detail::override_caster_t<ret_type> caster; \
return pybind11::detail::cast_ref<ret_type>(std::move(o), caster); \
} \
return pybind11::detail::cast_safe<ret_type>(std::move(o)); \
} \
} while (false)
/** \rst

21
include/pybind11/pytypes.h
View File

@ -440,19 +440,17 @@ inline object getattr(handle obj, const char *name) {
inline object getattr(handle obj, handle name, handle default_) {
if (PyObject *result = PyObject_GetAttr(obj.ptr(), name.ptr())) {
return reinterpret_steal<object>(result);
} else {
PyErr_Clear();
return reinterpret_borrow<object>(default_);
}
PyErr_Clear();
return reinterpret_borrow<object>(default_);
}
inline object getattr(handle obj, const char *name, handle default_) {
if (PyObject *result = PyObject_GetAttrString(obj.ptr(), name)) {
return reinterpret_steal<object>(result);
} else {
PyErr_Clear();
return reinterpret_borrow<object>(default_);
}
PyErr_Clear();
return reinterpret_borrow<object>(default_);
}
inline void setattr(handle obj, handle name, handle value) {
@ -791,10 +789,9 @@ inline bool PyIterable_Check(PyObject *obj) {
if (iter) {
Py_DECREF(iter);
return true;
} else {
PyErr_Clear();
return false;
}
PyErr_Clear();
return false;
}
inline bool PyNone_Check(PyObject *o) { return o == Py_None; }
@ -1188,10 +1185,8 @@ Unsigned as_unsigned(PyObject *o) {
unsigned long v = PyLong_AsUnsignedLong(o);
return v == (unsigned long) -1 && PyErr_Occurred() ? (Unsigned) -1 : (Unsigned) v;
}
else {
unsigned long long v = PyLong_AsUnsignedLongLong(o);
return v == (unsigned long long) -1 && PyErr_Occurred() ? (Unsigned) -1 : (Unsigned) v;
}
unsigned long long v = PyLong_AsUnsignedLongLong(o);
return v == (unsigned long long) -1 && PyErr_Occurred() ? (Unsigned) -1 : (Unsigned) v;
}
PYBIND11_NAMESPACE_END(detail)

3
include/pybind11/stl.h
View File

@ -278,7 +278,8 @@ template<typename T> struct optional_caster {
bool load(handle src, bool convert) {
if (!src) {
return false;
} else if (src.is_none()) {
}
if (src.is_none()) {
return true; // default-constructed value is already empty
}
value_conv inner_caster;

13
include/pybind11/stl_bind.h
View File

@ -414,13 +414,12 @@ void vector_buffer_impl(Class_& cl, std::true_type) {
if (step == 1) {
return Vector(p, end);
}
else {
Vector vec;
vec.reserve((size_t) info.shape[0]);
for (; p != end; p += step)
vec.push_back(*p);
return vec;
}
Vector vec;
vec.reserve((size_t) info.shape[0]);
for (; p != end; p += step)
vec.push_back(*p);
return vec;
}));
return;

9
tests/test_callbacks.cpp
View File

@ -82,7 +82,7 @@ TEST_SUBMODULE(callbacks, m) {
// Export the payload constructor statistics for testing purposes:
m.def("payload_cstats", &ConstructorStats::get<Payload>);
/* Test cleanup of lambda closure */
m.def("test_cleanup", []() -> std::function<void(void)> {
m.def("test_cleanup", []() -> std::function<void()> {
Payload p;
return [p]() {
@ -108,12 +108,13 @@ TEST_SUBMODULE(callbacks, m) {
if (!result) {
auto r = f(1);
return "can't convert to function pointer: eval(1) = " + std::to_string(r);
} else if (*result == dummy_function) {
}
if (*result == dummy_function) {
auto r = (*result)(1);
return "matches dummy_function: eval(1) = " + std::to_string(r);
} else {
return "argument does NOT match dummy_function. This should never happen!";
}
return "argument does NOT match dummy_function. This should never happen!";
});
class AbstractBase {

3
tests/test_class.cpp
View File

@ -154,8 +154,7 @@ TEST_SUBMODULE(class_, m) {
// return py::type::of<int>();
if (category == 1)
return py::type::of<DerivedClass1>();
else
return py::type::of<Invalid>();
return py::type::of<Invalid>();
});
m.def("get_type_of", [](py::object ob) { return py::type::of(std::move(ob)); });

3
tests/test_copy_move.cpp
View File

@ -203,8 +203,7 @@ TEST_SUBMODULE(copy_move_policies, m) {
void *ptr = std::malloc(bytes);
if (ptr)
return ptr;
else
throw std::bad_alloc{};
throw std::bad_alloc{};
}
};
py::class_<PrivateOpNew>(m, "PrivateOpNew").def_readonly("value", &PrivateOpNew::value);

10
tests/test_pytypes.cpp
View File

@ -263,13 +263,13 @@ TEST_SUBMODULE(pytypes, m) {
if (type == "bytes") {
return move ? py::bytes(std::move(value)) : py::bytes(value);
}
else if (type == "none") {
if (type == "none") {
return move ? py::none(std::move(value)) : py::none(value);
}
else if (type == "ellipsis") {
if (type == "ellipsis") {
return move ? py::ellipsis(std::move(value)) : py::ellipsis(value);
}
else if (type == "type") {
if (type == "type") {
return move ? py::type(std::move(value)) : py::type(value);
}
throw std::runtime_error("Invalid type");
@ -385,9 +385,7 @@ TEST_SUBMODULE(pytypes, m) {
if (is_unsigned)
return py::memoryview::from_buffer(
ui16, { 4 }, { sizeof(uint16_t) });
else
return py::memoryview::from_buffer(
si16, { 5 }, { sizeof(int16_t) });
return py::memoryview::from_buffer(si16, {5}, {sizeof(int16_t)});
});
m.def("test_memoryview_from_buffer_nativeformat", []() {

4
tests/test_virtual_functions.cpp
View File

@ -112,7 +112,9 @@ public:
void operator=(const NonCopyable &) = delete;
void operator=(NonCopyable &&) = delete;
std::string get_value() const {
if (value) return std::to_string(*value); else return "(null)";
if (value)
return std::to_string(*value);
return "(null)";
}
~NonCopyable() { print_destroyed(this); }