std::experimental::reflect::Object
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< cpp | experimental | reflect
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Concepts
Object
Meta-object operations
ObjectObjectSequenceNamedAliasTypeScopeMemberRecordMember and BaseRecordEnumVariableFunctionParameterCallableVariable and CallableNamespace and CallableParenthesizedExpressionFunctionCallExpressionFunctionalConversionVariable and FunctionMemberFunctionRecord and MemberFunctionVariable and MemberFunctionLambdaLambdaCaptureDefined in header
<experimental/reflect>
template< class T >
concept Object = /* see below */;
(reflection TS)
concept Object = /* see below */;
The Object concept is satisfied if and only if T is a meta-object type.
[edit] Example
Run this code
#include <experimental/reflect> namespace reflect = std::experimental::reflect; template<reflect::Object M> struct meta_t { template<reflect::Object M1> friend constexpr bool operator==(meta_t, meta_t<M1>) noexcept { return reflect::reflects_same_v<M, M1>; } template<reflect::Object M1> friend constexpr bool operator!=(meta_t, meta_t<M1>) noexcept { return !reflect::reflects_same_v<M, M1>; } }; template<reflect::Object M> constexpr meta_t<M> meta{}; int main() { static_assert(meta<reflexpr(int)> == meta<reflexpr(signed int)>, ""); // meta<int>; // error: int is not a meta-object type }