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Allow iterating over enum keys/values

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This commit is contained in:
0xFEEDC0DE64
2021-02-05 14:16:35 +01:00
parent b462eab362
commit 8114e9b1b3
1 changed files with 8 additions and 1 deletions
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9
include/cpptypesafeenum.h
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@ -13,6 +13,7 @@
#define DECLARE_TYPESAFE_ENUM_HELPER1(name) name, #define DECLARE_TYPESAFE_ENUM_HELPER1(name) name,
#define DECLARE_TYPESAFE_ENUM_HELPER2(name) case TheEnum::name: return #name; #define DECLARE_TYPESAFE_ENUM_HELPER2(name) case TheEnum::name: return #name;
#define DECLARE_TYPESAFE_ENUM_HELPER3(name) else if (str == CPP_STRINGIFY(name)) return TheEnum::name; #define DECLARE_TYPESAFE_ENUM_HELPER3(name) else if (str == CPP_STRINGIFY(name)) return TheEnum::name;
#define DECLARE_TYPESAFE_ENUM_HELPER4(name) cb(TheEnum::name, CPP_STRINGIFY(name));
#define DECLARE_TYPESAFE_ENUM(Name, Derivation, Values) \ #define DECLARE_TYPESAFE_ENUM(Name, Derivation, Values) \
enum class Name Derivation \ enum class Name Derivation \
@ -20,7 +21,13 @@
Values(DECLARE_TYPESAFE_ENUM_HELPER1) \ Values(DECLARE_TYPESAFE_ENUM_HELPER1) \
}; \ }; \
std::string toString(Name value); \ std::string toString(Name value); \
std::optional<Name> parse##Name(std::string_view str); std::optional<Name> parse##Name(std::string_view str); \
template<typename T> \
void iterate##Name(T &&cb) \
{ \
using TheEnum = Name; \
Values(DECLARE_TYPESAFE_ENUM_HELPER4) \
}
#define IMPLEMENT_TYPESAFE_ENUM(Name, Derivation, Values) \ #define IMPLEMENT_TYPESAFE_ENUM(Name, Derivation, Values) \
std::string toString(Name value) \ std::string toString(Name value) \