Trampoline< Function, MockFunction > Class Template Reference

#include <trampoline.hpp>

Public Types
using	FunctionLocationType = decltype(Function)
using	FunctionPtrType = std::remove_pointer_t<FunctionLocationType>
using	MockFunctionType = decltype(MockFunction)
using	MockType = member_pointer_class_t<MockFunctionType>

Public Member Functions
	Trampoline (MockType *mock)
void	Disable ()
void	Enable ()
	~Trampoline ()

Static Public Member Functions
template<typename... Args>
static auto	trampolineImpl (Args... args) -> decltype((std::declval< MockType * >() -> *mockFunc)(args...))

Static Public Attributes
static FunctionLocationType	func = Function
static constexpr MockFunctionType	mockFunc = MockFunction
static FunctionPtrType	realFunc = *func
static MockType *	sMock = nullptr

Detailed Description

template<auto * Function, auto MockFunction>
class Trampoline< Function, MockFunction >

A utility that 'bounces' calls to a free function, to a member function of a given instance.

• Runtime checks ensure only one trampoline is active at once.
• Not thread safe.
• Allows for bouncing calls to google mock methods.

Definition at line 21 of file trampoline.hpp.

Member Typedef Documentation

FunctionLocationType

template<auto * Function, auto MockFunction>

using Trampoline< Function, MockFunction >::FunctionLocationType = decltype(Function)

Definition at line 23 of file trampoline.hpp.

FunctionPtrType

template<auto * Function, auto MockFunction>

using Trampoline< Function, MockFunction >::FunctionPtrType = std::remove_pointer_t<FunctionLocationType>

Definition at line 24 of file trampoline.hpp.

MockFunctionType

template<auto * Function, auto MockFunction>

using Trampoline< Function, MockFunction >::MockFunctionType = decltype(MockFunction)

Definition at line 25 of file trampoline.hpp.

MockType

template<auto * Function, auto MockFunction>

using Trampoline< Function, MockFunction >::MockType = member_pointer_class_t<MockFunctionType>

Definition at line 26 of file trampoline.hpp.

Constructor & Destructor Documentation

Trampoline()

template<auto * Function, auto MockFunction>

Trampoline< Function, MockFunction >::Trampoline ( MockType * mock )

inlineexplicit

Definition at line 38 of file trampoline.hpp.

                                        : mMock(*mock) {
        if (sMock != nullptr) {
            throw std::runtime_error("Trampoline already in use");
        }
        sMock = &mMock;
        Enable();
    }

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~Trampoline()

template<auto * Function, auto MockFunction>

Trampoline< Function, MockFunction >::~Trampoline ( )

inline

Definition at line 56 of file trampoline.hpp.

                  {
        *func = realFunc;
        sMock = nullptr;
    }

Member Function Documentation

Disable()

template<auto * Function, auto MockFunction>

void Trampoline< Function, MockFunction >::Disable ( )

inline

Definition at line 46 of file trampoline.hpp.

                   {
        CheckOwnership();
        *func = realFunc;
    }

Enable()

template<auto * Function, auto MockFunction>

void Trampoline< Function, MockFunction >::Enable ( )

inline

Definition at line 51 of file trampoline.hpp.

                  {
        CheckOwnership();
        *func = &trampolineImpl;
    }

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trampolineImpl()

template<auto * Function, auto MockFunction>

template<typename... Args>

auto Trampoline< Function, MockFunction >::trampolineImpl ( Args... args ) -> decltype((std::declval<MockType*>()->*mockFunc)(args...))

inlinestatic

Definition at line 34 of file trampoline.hpp.

                                                                                                        {
        return (sMock->*mockFunc)(args...);
    }

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Member Data Documentation

func

template<auto * Function, auto MockFunction>

FunctionLocationType Trampoline< Function, MockFunction >::func = Function

inlinestatic

Definition at line 28 of file trampoline.hpp.

mockFunc

template<auto * Function, auto MockFunction>

MockFunctionType Trampoline< Function, MockFunction >::mockFunc = MockFunction

staticconstexpr

Definition at line 29 of file trampoline.hpp.

realFunc

template<auto * Function, auto MockFunction>

FunctionPtrType Trampoline< Function, MockFunction >::realFunc = *func

inlinestatic

Definition at line 30 of file trampoline.hpp.

sMock

template<auto * Function, auto MockFunction>

MockType* Trampoline< Function, MockFunction >::sMock = nullptr

inlinestatic

Definition at line 31 of file trampoline.hpp.

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The documentation for this class was generated from the following file:

• /home/runner/work/derive-C/derive-C/src/derive-c/test/trampoline.hpp