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pybind11
Commit 0de6e9c8 by Ralf W. Grosse-Kunstleve
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Adding messages to terse `static_assert`s, for pre-C++17 compatibility.

parent 6930847c
Showing with 19 additions and 5 deletions
include/pybind11/pybind11.h
...@@ -1290,13 +1290,27 @@ public: ...@@ -1290,13 +1290,27 @@ public:
static constexpr bool type_caster_type_is_smart_holder_type_caster = detail::is_smart_holder_type_caster<type>::value; static constexpr bool type_caster_type_is_smart_holder_type_caster = detail::is_smart_holder_type_caster<type>::value;
static constexpr bool type_caster_type_is_type_caster_base_subtype = std::is_base_of<detail::type_caster_base<type>, detail::type_caster<type>>::value; static constexpr bool type_caster_type_is_type_caster_base_subtype = std::is_base_of<detail::type_caster_base<type>, detail::type_caster<type>>::value;
// Necessary conditions, but not strict. // Necessary conditions, but not strict.
static_assert(!(detail::is_instantiation<std::unique_ptr, holder_type>::value && type_caster_type_is_smart_holder_type_caster)); static_assert(!(detail::is_instantiation<std::unique_ptr, holder_type>::value &&
static_assert(!(detail::is_instantiation<std::shared_ptr, holder_type>::value && type_caster_type_is_smart_holder_type_caster)); type_caster_type_is_smart_holder_type_caster),
static_assert(!(holder_is_smart_holder && type_caster_type_is_type_caster_base_subtype)); "py::class_ holder vs type_caster mismatch:"
" missing PYBIND11_SMART_POINTER_HOLDER_TYPE_CASTERS(T, std::unique_ptr<T>)?");
static_assert(!(detail::is_instantiation<std::shared_ptr, holder_type>::value &&
type_caster_type_is_smart_holder_type_caster),
"py::class_ holder vs type_caster mismatch:"
" missing PYBIND11_SMART_POINTER_HOLDER_TYPE_CASTERS(T, std::shared_ptr<T>)?");
static_assert(!(holder_is_smart_holder && type_caster_type_is_type_caster_base_subtype),
"py::class_ holder vs type_caster mismatch:"
" missing PYBIND11_SMART_HOLDER_TYPE_CASTERS(T)?");
#ifdef PYBIND11_STRICT_ASSERTS_CLASS_HOLDER_VS_TYPE_CASTER_MIX #ifdef PYBIND11_STRICT_ASSERTS_CLASS_HOLDER_VS_TYPE_CASTER_MIX
// Strict conditions cannot be enforced universally at the moment (PR #2836). // Strict conditions cannot be enforced universally at the moment (PR #2836).
static_assert(holder_is_smart_holder == type_caster_type_is_smart_holder_type_caster); static_assert(holder_is_smart_holder == type_caster_type_is_smart_holder_type_caster,
static_assert(!holder_is_smart_holder == type_caster_type_is_type_caster_base_subtype); "py::class_ holder vs type_caster mismatch:"
" missing PYBIND11_SMART_HOLDER_TYPE_CASTERS(T)"
" or collision with custom py::detail::type_caster<T>?");
static_assert(!holder_is_smart_holder == type_caster_type_is_type_caster_base_subtype,
"py::class_ holder vs type_caster mismatch:"
" missing PYBIND11_SMART_POINTER_HOLDER_TYPE_CASTERS(T, ...)"
" or collision with custom py::detail::type_caster<T>?");
#endif #endif
type_record record; type_record record;
record.scope = scope; record.scope = scope;
......
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