VariantTest.cpp File Reference

#include <catch2/catch.hpp>
#include "Callable.h"
#include "Variant.h"

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Classes
struct	ValueType
struct	Tester< Const, ref >
	Parameterize for the type of visitor return. More...
struct	Tester< Const, ref >::X
struct	Tester< Const, ref >::Y
	Structure can specialize with only a non-const member function. More...
struct	Tester< Const, ref >::Z
	Structure always with a const member function. More...
struct	Tester< Const, ref >::CopyOnly
struct	TestVisitor
struct	TestVariant

Enumerations
enum	Ref { lvalue , rvalue , noref }

Functions
	TEST_CASE ("Variant visitors returning T &")
	TEST_CASE ("Variant visitors returning T const &")
	TEST_CASE ("Variant visitors returning T &&")
	TEST_CASE ("Variant visitors returning T const &&")
	TEST_CASE ("Variant visitors returning T")
	TEST_CASE ("Variant visitors returning T const")
static void	compileTest ()

Enumeration Type Documentation

Ref

enum Ref

Enumerator
lvalue
rvalue
noref

Definition at line 17 of file VariantTest.cpp.

{ lvalue, rvalue, noref };

Function Documentation

compileTest()

static void compileTest ( )

static

Definition at line 215 of file VariantTest.cpp.

{
   // Test compilation of all 16 combinations of constness and value category
   // of the visitor and the variant
 
   // This is an example that fails to compile when decltype(auto) in Variant.h
   // is replaced with auto
   TestVariant var;
   const TestVariant cvar;
   TestVisitor vis;
   const TestVisitor cvis;
 
   static_assert(std::is_same_v<int&, decltype(Visit(vis, var))>);
   static_assert(std::is_same_v<int&, decltype(Visit(cvis, var))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(vis), var))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(cvis), var))>);
 
   static_assert(std::is_same_v<int&, decltype(Visit(vis, cvar))>);
   static_assert(std::is_same_v<int&, decltype(Visit(cvis, cvar))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(vis), cvar))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(cvis), cvar))>);
 
   static_assert(std::is_same_v<int&, decltype(Visit(vis, std::move(var)))>);
   static_assert(std::is_same_v<int&, decltype(Visit(cvis, std::move(var)))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(vis), std::move(var)))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(cvis), std::move(var)))>);
 
   static_assert(std::is_same_v<int&, decltype(Visit(vis, std::move(cvar)))>);
   static_assert(std::is_same_v<int&, decltype(Visit(cvis, std::move(cvar)))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(vis), std::move(cvar)))>);
   static_assert(std::is_same_v<int&, decltype(Visit(std::move(cvis), std::move(cvar)))>);
}

References MenuRegistry::Visit().

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TEST_CASE() [1/6]

TEST_CASE

(

"Variant visitors returning T &"

)

Definition at line 177 of file VariantTest.cpp.

{
   Tester<false>{}.DoTests();
}

References Tester< Const, ref >::DoTests().

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TEST_CASE() [2/6]

TEST_CASE

(

"Variant visitors returning T &&"

)

Definition at line 187 of file VariantTest.cpp.

{
   Tester<false, rvalue>{}.DoTests();
}

References Tester< Const, ref >::DoTests().

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TEST_CASE() [3/6]

TEST_CASE

(

"Variant visitors returning T const &"

)

Definition at line 182 of file VariantTest.cpp.

{
   Tester<true>{}.DoTests();
}

References Tester< Const, ref >::DoTests().

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TEST_CASE() [4/6]

TEST_CASE

(

"Variant visitors returning T const &&"

)

Definition at line 192 of file VariantTest.cpp.

{
   Tester<true, rvalue>{}.DoTests();
}

References Tester< Const, ref >::DoTests().

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TEST_CASE() [5/6]

TEST_CASE

(

"Variant visitors returning T const"

)

Definition at line 202 of file VariantTest.cpp.

{
   Tester<true, noref>{}.DoTests();
}

References Tester< Const, ref >::DoTests().

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TEST_CASE() [6/6]

TEST_CASE

(

"Variant visitors returning T"

)

Definition at line 197 of file VariantTest.cpp.

{
   Tester<false, noref>{}.DoTests();
}

References Tester< Const, ref >::DoTests().

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