709 lines
28 KiB
C++
709 lines
28 KiB
C++
/** @file objectmodel.test.cpp
|
|
*
|
|
* @author: Roland Conybeare, Dec 2025
|
|
*
|
|
* Testing rust-like traits (split iface/data) object model.
|
|
* Analogous to:
|
|
* - rust traits
|
|
* - haskell type classes
|
|
* - go interfaces
|
|
*
|
|
* See xo-alloc2/README.md
|
|
*
|
|
* Ingredients:
|
|
* 1. abstract interface: all virtual methods. No assumptions about representation.
|
|
* No state (besides implict vtable pointer)
|
|
*
|
|
* Rules:
|
|
* 1. abstract interface must have no state besides implicit vtable pointer.
|
|
* This is a strongly-held principle, we're keeping data representation entirely
|
|
* separate
|
|
* 2. representations as passive as possible. No getters. All public members.
|
|
* Exceptions to this principle:
|
|
* - ctors (including copy/move ctors, when needed)
|
|
* - dtors
|
|
*
|
|
* Conventions:
|
|
* 1. abstract interface start with letter A, e.g. AComplex
|
|
* 2. representation struct names start with letter D, e.g. DPolar, DRect.
|
|
* Don't require "intended primary interface" in the name,
|
|
* since we're seeking ability to attach the same data to different interfaces
|
|
* 3. implementations start with letter I. They concatenate abstract interface name
|
|
* and representation name, e.g. IComplex_PolarCoords
|
|
*
|
|
* Example Class Diagram
|
|
*
|
|
* AComplex
|
|
* ^
|
|
* |
|
|
* /------------------------+--------------------\
|
|
* | | |
|
|
* IComplex_DRectCoords IComplex_DPolarCoords IComplex_Any
|
|
* = IComplex_Specific = IComplex_Specific
|
|
* <DRectCoords> <DPolarCoords>
|
|
* ^ ^
|
|
* | |
|
|
* ... OUniqueBox
|
|
* <AComplex,DPolarCoords>
|
|
* ^
|
|
* |
|
|
* RComplex<AComplex>
|
|
* = RoutingFor<AComplex,OUniqueBox..>::RoutingType
|
|
* ^
|
|
* |
|
|
* ubox<AComplex,
|
|
* DPolarCoords>
|
|
*
|
|
* AComplex: abstract interface.
|
|
* explicit, type-erased, data pointer argument
|
|
* virtual AComplex::xcoord(void * data)
|
|
*
|
|
* DPolarCoords: passive representation
|
|
*
|
|
* IComplex_DPolarCoords: implement AComplex interface for representation DPolarCoords
|
|
* static methods with typed data pointer argument
|
|
* IComplex_DPolarCoords::xcoord(void * data)
|
|
* IComplex_DPolarCoords::_xcoord(DPolarCoords * data)
|
|
*
|
|
* OUniqueBox<AComplex,DPolarCoords>:
|
|
* a self-sufficient object, associating
|
|
* interface AComplex with representation DPolarCoords
|
|
* OUniqueBox .data() method is DPolarCoord*
|
|
* 'impure' in the sense that it mixes code+data
|
|
*
|
|
* RComplex<AComplex>: convenience interface for OUniqueBox
|
|
*
|
|
* ubox<AComplex,DPolarCOords>:
|
|
* self-sufficent object with convenient interface
|
|
*
|
|
* Application code will deal with ubox<AComplex,DPolarCoords>
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
**/
|
|
|
|
#include <catch2/catch.hpp>
|
|
#include <cmath>
|
|
#include <cassert>
|
|
#include <cstring>
|
|
|
|
namespace xo {
|
|
namespace ut {
|
|
namespace {
|
|
struct PlaceholderAbstractInterface {
|
|
virtual double foo(void * data) const = 0;
|
|
};
|
|
|
|
static_assert(sizeof(PlaceholderAbstractInterface) == sizeof(void*));
|
|
|
|
/** Concept: abstract interface requirements
|
|
* Use: when inheriting an abstract interface
|
|
* (see also valid_abstract_interface() below)
|
|
**/
|
|
template <typename T>
|
|
concept abstract_interface = requires {
|
|
std::is_abstract_v<T>,
|
|
std::is_polymorphic_v<T>;
|
|
/** require no state, just a single vtable pointer **/
|
|
sizeof(T) == sizeof(PlaceholderAbstractInterface);
|
|
!std::has_virtual_destructor_v<T>;
|
|
std::is_trivially_destructible_v<T>;
|
|
};
|
|
|
|
/** For example ISpecific = IComplex_DPolarCoords
|
|
**/
|
|
template <typename AInterface, typename ISpecific>
|
|
concept implements_interface = requires {
|
|
std::is_base_of_v<AInterface, ISpecific>;
|
|
std::is_default_constructible_v<ISpecific>;
|
|
std::is_standard_layout_v<ISpecific>;
|
|
/** require no additional state **/
|
|
sizeof(ISpecific) == sizeof(AInterface);
|
|
};
|
|
|
|
/** Router delivers data to interface implementation **/
|
|
template <typename Object, typename Router>
|
|
concept provides_router = requires {
|
|
std::is_base_of_v<Object, Router>;
|
|
sizeof(Router) == sizeof(Object);
|
|
};
|
|
|
|
/** Use: when defining an abstract interface AMyInterface
|
|
*
|
|
* struct AMyInterface {
|
|
* virtual void foo(void * data) const = 0;
|
|
* };
|
|
*
|
|
* static_assert(valid_abstract_interface<AMyInterface>());
|
|
*
|
|
**/
|
|
template <typename T>
|
|
consteval bool valid_abstract_interface()
|
|
{
|
|
static_assert(std::is_abstract_v<T>,
|
|
"Abstract interface expected to have all-abstract methods");
|
|
static_assert(std::is_polymorphic_v<T>,
|
|
"Abstract interface expected to have vtable");
|
|
static_assert(sizeof(T) == sizeof(PlaceholderAbstractInterface),
|
|
"Abstract interface expected to have no state except for a single vtable pointer");
|
|
static_assert(!std::has_virtual_destructor_v<T>,
|
|
"Abstract interface does not benefit from virtual dtor since no state");
|
|
static_assert(std::is_trivially_destructible_v<T>,
|
|
"Abstract interface expected to have trivial dtor since no state");
|
|
return true;
|
|
};
|
|
|
|
template <typename AInterface, typename ISpecific>
|
|
consteval bool valid_interface_implementation()
|
|
requires (valid_abstract_interface<AInterface>())
|
|
{
|
|
static_assert(std::is_base_of_v<AInterface, ISpecific>,
|
|
"Interface implementation must inherit abstract interface");
|
|
static_assert(std::is_default_constructible_v<ISpecific>,
|
|
"Interface implementation must be default-constructible");
|
|
static_assert(sizeof(ISpecific) == sizeof(AInterface),
|
|
"Interface implementation may no introduce state");
|
|
static_assert(!std::has_virtual_destructor_v<ISpecific>,
|
|
"Interface implementation may does not benefit from virtual dtor since no state");
|
|
static_assert(std::is_trivially_destructible_v<ISpecific>,
|
|
"Interface implementation expected to have trivial dtor since no state");
|
|
|
|
// don't need this test, it's covered by sizeof check
|
|
//static_assert(std::is_pointer_interconvertible_base_of_v<AInterface, ISpecific>,
|
|
// "Interface implementation must directly inherit interface (no base offset)");
|
|
|
|
return true;
|
|
};
|
|
|
|
template <typename OObject>
|
|
consteval bool valid_object_traits()
|
|
{
|
|
static_assert(requires { typename OObject::AbstractInterface; },
|
|
"Object type must provide typename Object::AbstractInterface");
|
|
static_assert(requires { typename OObject::ISpecific; },
|
|
"Object type must provide typename Object::ISpecific");
|
|
static_assert(requires { typename OObject::DataType; },
|
|
"Object type must provide typename Object::DataType");
|
|
static_assert(valid_interface_implementation<OObject::AbstractInterface, OObject::ISpecific>,
|
|
"Object::ISpecific must implement Object::AbstractInterface");
|
|
static_assert(std::is_standard_layout_v<OObject>,
|
|
"Object must have standard layout, i.e. no virtual methods. Virtual methods belong in OObject::AbstractInterface");
|
|
static_assert(requires(const OObject & obj) { { obj.iface() } -> std::convertible_to<const typename OObject::AbstractInterface*>; },
|
|
"Object must have non-virtual method iface() returning const Object::AbstractInterface");
|
|
static_assert(requires(const OObject & obj) { { obj.data() } -> std::convertible_to<typename OObject::DataType*>; },
|
|
"Object must have non-virtual method data() returning Object::DataType*");
|
|
|
|
return true;
|
|
}
|
|
|
|
template <typename RRouter>
|
|
consteval bool valid_object_router()
|
|
{
|
|
static_assert(requires { typename RRouter::ObjectType; },
|
|
"Router type must provide typename Router::ObjectType");
|
|
static_assert(valid_object_traits<RRouter::ObjectType>,
|
|
"Router::ObjectType must satisfy objectmodel traits");
|
|
static_assert(std::is_standard_layout_v<RRouter>,
|
|
"Router must have standard laayout, i.e. no virtual methods. Virtual methods belong in OObject::AbstractInterface*>");
|
|
return true;
|
|
};
|
|
|
|
// ----------------------------------------------------------------
|
|
|
|
/** Associates an interface with an representation.
|
|
* Specialize to record such associations.
|
|
**/
|
|
|
|
template <typename Interface,
|
|
typename Data>
|
|
struct ISpecificFor;
|
|
|
|
/** type-erased implementation of AComplex, see below **/
|
|
struct IComplex_Any;
|
|
|
|
/** abstract interface for a complex number **/
|
|
struct AComplex {
|
|
using TypeErasedIface = IComplex_Any;
|
|
|
|
virtual double xcoord(void * data) const = 0;
|
|
virtual double ycoord(void * data) const = 0;
|
|
virtual double argument(void * data) const = 0;
|
|
virtual double magnitude(void * data) const = 0;
|
|
|
|
virtual void destruct_data(void * data) const = 0;
|
|
|
|
private:
|
|
static bool _valid;
|
|
};
|
|
|
|
bool
|
|
AComplex::_valid = valid_abstract_interface<AComplex>();
|
|
|
|
// ----------------------------------------------------------------
|
|
|
|
/** type-erased implementation of AComplex, for runtime polymorphism
|
|
* Usable by (and only by) overwriting with a typed implementation,
|
|
* such as IComplex_RectCoords or IComplex_PolarCoords.
|
|
**/
|
|
struct IComplex_Any : public AComplex {
|
|
virtual double xcoord(void *) const final override { assert(false); return 0.0; }
|
|
virtual double ycoord(void *) const final override { assert(false); return 0.0; }
|
|
virtual double argument(void *) const final override { assert(false); return 0.0; }
|
|
virtual double magnitude(void *) const final override { assert(false); return 0.0; }
|
|
|
|
virtual void destruct_data(void *) const final override { assert(false); }
|
|
|
|
private:
|
|
static bool _valid;
|
|
};
|
|
|
|
bool
|
|
IComplex_Any::_valid = valid_interface_implementation<AComplex, IComplex_Any>;
|
|
|
|
// ----------------------------------------------------------------
|
|
|
|
template <typename Repr>
|
|
struct IComplex_Specific : public AComplex {
|
|
static double _xcoord(Repr *);
|
|
static double _ycoord(Repr *);
|
|
static double _argument(Repr *);
|
|
static double _magnitude(Repr *);
|
|
static void _destruct_data(Repr *);
|
|
|
|
virtual double xcoord(void * data) const final override { return _xcoord((Repr*)data); }
|
|
virtual double ycoord(void * data) const final override { return _ycoord((Repr*)data); }
|
|
virtual double argument(void * data) const final override { return _argument((Repr*)data); }
|
|
virtual double magnitude(void * data) const final override { return _magnitude((Repr*)data); }
|
|
virtual void destruct_data(void * data) const final override { _destruct_data((Repr*)data); }
|
|
|
|
public:
|
|
static bool _valid;
|
|
};
|
|
|
|
template <typename Repr>
|
|
bool
|
|
IComplex_Specific<Repr>::_valid = valid_interface_implementation<AComplex, IComplex_Specific>;
|
|
|
|
// ----- Placeholder for opaque data -----
|
|
|
|
// Placeholder used for template specialization
|
|
|
|
struct DOpaquePlaceholder {};
|
|
|
|
using IComplex_DOpaquePlaceholder = IComplex_Any;
|
|
|
|
template <>
|
|
struct ISpecificFor<AComplex, DOpaquePlaceholder> {
|
|
using ImplType = IComplex_Any;
|
|
};
|
|
|
|
// ----- Representation: Polar Coordinates -----
|
|
|
|
/** complex number, represented using polar coordinates **/
|
|
struct DPolarCoords {
|
|
DPolarCoords(double arg, double mag) : arg_{arg}, mag_{mag} {}
|
|
|
|
double arg_;
|
|
double mag_;
|
|
};
|
|
|
|
// ----- AComplex for DPolarCoords -----
|
|
|
|
/** implementation of AComplex interface with representation DPolarCoords **/
|
|
using IComplex_DPolarCoords = IComplex_Specific<DPolarCoords>;
|
|
|
|
template <>
|
|
double
|
|
IComplex_Specific<DPolarCoords>::_xcoord(DPolarCoords * data) {
|
|
return data->mag_ * std::cos(data->arg_);
|
|
};
|
|
|
|
template <>
|
|
double IComplex_Specific<DPolarCoords>::_ycoord(DPolarCoords * data) {
|
|
return data->mag_ * std::sin(data->arg_);
|
|
};
|
|
|
|
template <>
|
|
double
|
|
IComplex_Specific<DPolarCoords>::_argument(DPolarCoords * data) {
|
|
return data->arg_;
|
|
}
|
|
|
|
template <>
|
|
double
|
|
IComplex_Specific<DPolarCoords>::_magnitude(DPolarCoords * data) {
|
|
return data->mag_;
|
|
}
|
|
|
|
template <>
|
|
void
|
|
IComplex_Specific<DPolarCoords>::_destruct_data(DPolarCoords * data) {
|
|
data->~DPolarCoords();
|
|
}
|
|
|
|
template <>
|
|
struct ISpecificFor<AComplex, DPolarCoords> {
|
|
using ImplType = IComplex_Specific<DPolarCoords>;
|
|
};
|
|
|
|
// ----- Representation: Rectangular Coordinates -----
|
|
|
|
/** complex number, represented using rectangular coordinates **/
|
|
struct DRectCoords {
|
|
DRectCoords(double x, double y) : x_{x}, y_{y} {}
|
|
|
|
double x_;
|
|
double y_;
|
|
};
|
|
|
|
// ----- AComplex for DRectCoords -----
|
|
|
|
/** implementation of AComplex interface with representation DRectCoords **/
|
|
using IComplex_DRectCoords = IComplex_Specific<DRectCoords>;
|
|
|
|
template <>
|
|
double
|
|
IComplex_Specific<DRectCoords>::_xcoord(DRectCoords * data) {
|
|
return data->x_;
|
|
};
|
|
|
|
template <>
|
|
double
|
|
IComplex_Specific<DRectCoords>::_ycoord(DRectCoords * data) {
|
|
return data->y_;
|
|
};
|
|
|
|
template <>
|
|
double
|
|
IComplex_Specific<DRectCoords>::_argument(DRectCoords * data) {
|
|
return std::atan(data->y_ / data->x_);
|
|
}
|
|
|
|
template <>
|
|
double
|
|
IComplex_Specific<DRectCoords>::_magnitude(DRectCoords * data) {
|
|
double x = data->x_;
|
|
double y = data->y_;
|
|
|
|
return std::sqrt(x*x + y*y);
|
|
}
|
|
|
|
template <>
|
|
void
|
|
IComplex_Specific<DRectCoords>::_destruct_data(DRectCoords * data) {
|
|
data->~DRectCoords();
|
|
}
|
|
|
|
template <>
|
|
struct ISpecificFor<AComplex, DRectCoords> {
|
|
using ImplType = IComplex_Specific<DRectCoords>;
|
|
};
|
|
|
|
// ----- polymorphic box -----
|
|
|
|
/**
|
|
* Unqiuely-owned instance with runtime polymorphism.
|
|
*
|
|
* Unlike OUniqueBox<AInterface, ..> can use for variant data
|
|
* without additional overhead. Tradeoff is that avoiding such
|
|
* overhead excludes std::unique_ptr.
|
|
*
|
|
* We're going to instead rely on AInterface providing a destruct_data() method,
|
|
* so in practice get the deleter from interface state.
|
|
*
|
|
* Possibly means we need all abstract interfaces to share a common base
|
|
*
|
|
* Remarks:
|
|
* - when @tparam Data is supplied
|
|
**/
|
|
template <typename AInterface, typename Data = DOpaquePlaceholder>
|
|
struct OUniqueBox {
|
|
using AbstractInterface = AInterface;
|
|
using ISpecific = ISpecificFor<AInterface, Data>::ImplType;
|
|
/* note: Data can be void here */
|
|
using DataType = Data;
|
|
using DataBox = Data*;
|
|
|
|
explicit OUniqueBox() {}
|
|
/* unsatisfactory b/c doesn't enforce that @p d is heap-allocated */
|
|
explicit OUniqueBox(DataBox d) : data_{std::move(d)} {}
|
|
|
|
~OUniqueBox() {
|
|
if (data_ != nullptr) {
|
|
this->iface()->destruct_data(data_);
|
|
delete data_;
|
|
this->data_ = nullptr;
|
|
}
|
|
}
|
|
|
|
const AInterface * iface() const
|
|
requires std::is_same_v<Data, DOpaquePlaceholder>
|
|
{
|
|
return std::launder(&iface_);
|
|
}
|
|
|
|
const AInterface * iface() const
|
|
requires (!std::is_same_v<Data, DOpaquePlaceholder>)
|
|
{
|
|
return &iface_;
|
|
}
|
|
|
|
/** note: would prefer this to be constexpr, but not simple asof gcc 14.3 **/
|
|
static bool _valid;
|
|
|
|
/** note: load-bearing for routing classes such as RComplex<OUniqueBox> **/
|
|
Data * data() const { return data_; }
|
|
|
|
ISpecific iface_;
|
|
DataBox data_ = nullptr;
|
|
};
|
|
|
|
template <typename AInterface, typename Data>
|
|
bool
|
|
OUniqueBox<AInterface, Data>::_valid = valid_object_traits<OUniqueBox>();
|
|
|
|
// ----- Router; RFoo pairs with AFoo -----
|
|
|
|
/** For example, inherit OUniqueBox<AComplex>
|
|
**/
|
|
template <typename Object>
|
|
struct RComplex : public Object {
|
|
using ObjectType = Object;
|
|
|
|
RComplex() {}
|
|
RComplex(Object::DataBox data) : Object{std::move(data)} {}
|
|
|
|
double xcoord() const { return Object::iface()->xcoord(Object::data()); }
|
|
double ycoord() const { return Object::iface()->ycoord(Object::data()); }
|
|
double argument() const { return Object::iface()->argument(Object::data()); }
|
|
double magnitude() const { return Object::iface()->magnitude(Object::data()); }
|
|
|
|
/** note: would prefer this to be constexpr, but seems infeasible asof gcc 14.3 **/
|
|
static bool _valid;
|
|
};
|
|
|
|
template <typename Object>
|
|
bool
|
|
RComplex<Object>::_valid = valid_object_router<Object>();
|
|
|
|
template <typename AInterface, typename Object>
|
|
requires abstract_interface<AInterface>
|
|
struct RoutingFor;
|
|
|
|
template <typename Object>
|
|
struct RoutingFor<AComplex, Object> {
|
|
using RoutingType = RComplex<Object>;
|
|
};
|
|
|
|
template <typename AInterface, typename Object>
|
|
using RoutingType = RoutingFor<AComplex, Object>::RoutingType;
|
|
|
|
// ----- unique any; coordinates with OUniqueBox -----
|
|
|
|
/** boxed object, held by unique-pointer equivalent.
|
|
* - With default Data argument:
|
|
* type-erased polymorphic container
|
|
* - with specific Data argument:
|
|
* typed container. Trivially de-virtualizable
|
|
*
|
|
* Example:
|
|
* std::unique_ptr<DRectCoords> z1_in
|
|
* = std::make_unique<DRectCoords>(1.0, 0.0):
|
|
* ubox<AComplex> z1{z1_in.release()};
|
|
* z1.xcoord();
|
|
*
|
|
*
|
|
* +-----+ +-----------------+
|
|
* Interface | x-------------->| vtable for |
|
|
* +-----+ | some descendant |
|
|
* Data | x--------\ | of AInterface |
|
|
* +-----+ | | |
|
|
* | +-----------------+
|
|
* |
|
|
* | +--------------+
|
|
* \----->| data :: Repr |
|
|
* +--------------+
|
|
*
|
|
* Binary representation of unay<AInterface, Data>
|
|
* is compatible for different values of @tparam Data
|
|
* as long as vtable pointer moves along with data pointer.
|
|
*
|
|
* In particular binary representation for
|
|
* ubox<AInterface,D> is as if it inherited ubox<AInterface>
|
|
* (even though it does not as far as compiler is concerned)
|
|
*
|
|
* This is load-bearing for @ref move2any see below
|
|
**/
|
|
template <typename AInterface, typename Data = DOpaquePlaceholder>
|
|
struct ubox : public RoutingType<AComplex, OUniqueBox<AComplex, Data>> {
|
|
using Super = RoutingType<AComplex, OUniqueBox<AComplex, Data>>;
|
|
|
|
ubox() {}
|
|
explicit ubox(Super::DataBox d) : Super(d) {}
|
|
|
|
/** copy contents of this instance into *dest.
|
|
**/
|
|
void move2any(ubox<AInterface> * dest) {
|
|
static_assert(sizeof(ubox<AInterface>)
|
|
== sizeof(ubox<AInterface, Data>));
|
|
|
|
::memcpy((void*)dest, (void*)this, sizeof(ubox<AInterface>));
|
|
// this is almost right. But would not copy vtable pointer
|
|
//*dest = *(reinterpret_cast<ubox<AInterface>*>(this));
|
|
this->data_ = nullptr;
|
|
}
|
|
|
|
/** move constructor from a different representation.
|
|
* allowed given:
|
|
* - same abstract interface
|
|
* - same strategy (unique / refcounted / ..)
|
|
**/
|
|
template <typename Data2>
|
|
ubox(ubox<AInterface, Data2> && other)
|
|
requires (std::is_same_v<Data, DOpaquePlaceholder>
|
|
|| std::is_convertible_v<Data2*, Data>)
|
|
: Super()
|
|
{
|
|
static_assert(sizeof(ubox<AInterface, Data2>)
|
|
== sizeof(ubox<AInterface, Data>));
|
|
|
|
other.move2any(this);
|
|
|
|
assert(other.data_ = nullptr);
|
|
}
|
|
};
|
|
|
|
} /*namespace*/
|
|
|
|
// ----- UNIT TESTS -----
|
|
|
|
TEST_CASE("objectmodel-specific-1", "[objectmodel]")
|
|
{
|
|
/* arg=0, mag=1 -> 1+0i */
|
|
DPolarCoords polar{0.0, 1.0};
|
|
IComplex_Specific<DPolarCoords> polar_iface;
|
|
|
|
REQUIRE(polar_iface._xcoord(&polar) == 1.0);
|
|
REQUIRE(polar_iface._ycoord(&polar) == 0.0);
|
|
REQUIRE(polar_iface._argument(&polar) == 0.0);
|
|
REQUIRE(polar_iface._magnitude(&polar) == 1.0);
|
|
}
|
|
|
|
TEST_CASE("objectmodel-specific-2", "[objectmodel]")
|
|
{
|
|
/* arg=0, mag=1 -> 1+0i */
|
|
DRectCoords rect{1.0, 0.0};
|
|
IComplex_Specific<DRectCoords> rect_iface;
|
|
|
|
REQUIRE(rect_iface._xcoord(&rect) == 1.0);
|
|
REQUIRE(rect_iface._ycoord(&rect) == 0.0);
|
|
REQUIRE(rect_iface._argument(&rect) == 0.0);
|
|
REQUIRE(rect_iface._magnitude(&rect) == 1.0);
|
|
}
|
|
|
|
TEST_CASE("uniquebox-1", "[objectmodel]")
|
|
{
|
|
auto tmp = std::make_unique<DPolarCoords>(0.0, 1.0);
|
|
OUniqueBox<AComplex, DPolarCoords> box{tmp.release()};
|
|
|
|
REQUIRE(box.iface()->xcoord(box.data()) == 1.0);
|
|
REQUIRE(box.iface()->ycoord(box.data()) == 0.0);
|
|
REQUIRE(box.iface()->argument(box.data()) == 0.0);
|
|
REQUIRE(box.iface()->magnitude(box.data()) == 1.0);
|
|
}
|
|
|
|
TEST_CASE("router-1", "[objectmodel]")
|
|
{
|
|
using Object = OUniqueBox<AComplex, DPolarCoords>;
|
|
auto tmp = std::make_unique<DPolarCoords>(0.0, 1.0);
|
|
|
|
RComplex<Object> box{tmp.release()};
|
|
|
|
REQUIRE(box.xcoord() == 1.0);
|
|
REQUIRE(box.ycoord() == 0.0);
|
|
REQUIRE(box.argument() == 0.0);
|
|
REQUIRE(box.magnitude() == 1.0);
|
|
}
|
|
|
|
TEST_CASE("routing-type-1", "[objectmodel]")
|
|
{
|
|
using Object = OUniqueBox<AComplex, DPolarCoords>;
|
|
auto tmp = std::make_unique<DPolarCoords>(0.0, 1.0);
|
|
|
|
RoutingType<AComplex, Object> box{tmp.release()};
|
|
|
|
REQUIRE(box.xcoord() == 1.0);
|
|
REQUIRE(box.ycoord() == 0.0);
|
|
REQUIRE(box.argument() == 0.0);
|
|
REQUIRE(box.magnitude() == 1.0);
|
|
}
|
|
|
|
TEST_CASE("ubox-1", "[objectmodel]")
|
|
{
|
|
auto tmp = std::make_unique<DPolarCoords>(0.0, 1.0);
|
|
ubox<AComplex,DPolarCoords> box{tmp.release()};
|
|
|
|
REQUIRE(box.xcoord() == 1.0);
|
|
REQUIRE(box.ycoord() == 0.0);
|
|
REQUIRE(box.argument() == 0.0);
|
|
REQUIRE(box.magnitude() == 1.0);
|
|
}
|
|
|
|
TEST_CASE("ubox-2", "[objectmodel]")
|
|
{
|
|
auto tmp = std::make_unique<DRectCoords>(1.0, 0.0);
|
|
ubox<AComplex,DRectCoords> box{tmp.release()};
|
|
|
|
REQUIRE(box.xcoord() == 1.0);
|
|
REQUIRE(box.ycoord() == 0.0);
|
|
REQUIRE(box.argument() == 0.0);
|
|
REQUIRE(box.magnitude() == 1.0);
|
|
}
|
|
|
|
TEST_CASE("ubox-any-1", "[objectmodel]")
|
|
{
|
|
/* default ctor */
|
|
ubox<AComplex> any;
|
|
}
|
|
|
|
TEST_CASE("ubox-any-2", "[objectmodel]")
|
|
{
|
|
/* equivalent to ubox<AComplex,DRectCoords>, but impl doesn't use std::unique_ptr */
|
|
ubox<AComplex,DRectCoords> any{new DRectCoords{1.0, 0.0}};
|
|
|
|
REQUIRE(any.xcoord() == 1.0);
|
|
REQUIRE(any.ycoord() == 0.0);
|
|
REQUIRE(any.argument() == 0.0);
|
|
REQUIRE(any.magnitude() == 1.0);
|
|
}
|
|
|
|
TEST_CASE("ubox-any-3", "[objectmodel]")
|
|
{
|
|
/* equivalent to ubox<AComplex,DRectCoords>, but impl doesn't use std::unique_ptr */
|
|
ubox<AComplex,DRectCoords> z1{new DRectCoords{1.0, 0.0}};
|
|
|
|
DRectCoords * z1_data = z1.data();
|
|
|
|
REQUIRE(z1.data() != nullptr);
|
|
REQUIRE(z1.xcoord() == 1.0);
|
|
|
|
/* can type-erase */
|
|
ubox<AComplex> z1_any;
|
|
|
|
REQUIRE(z1_any.data() == nullptr);
|
|
|
|
z1.move2any(&z1_any);
|
|
|
|
/* z1 should be empty, it moved itself */
|
|
REQUIRE(z1.data() == nullptr);
|
|
REQUIRE((void*)z1_any.data() == (void*)z1_data);
|
|
|
|
REQUIRE(z1_any.xcoord() == 1.0);
|
|
}
|
|
} /*namespace ut*/
|
|
} /*namespace xo*/
|
|
|
|
/* end objectmodel.test.cp */
|