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Implements Enum with specific start value.
continuous-integration/drone/push Build is passing Details

This commit is contained in:
Deukhoofd 2020-04-18 14:57:23 +02:00
parent e850f728bc
commit bc64e35c8a
Signed by: Deukhoofd
GPG Key ID: ADF2E9256009EDCE
3 changed files with 288 additions and 4 deletions
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8
src/Enum.hpp
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@ -5,6 +5,8 @@
#include <vector> #include <vector>
#include "MacroUtils.hpp" #include "MacroUtils.hpp"
#define ENUM_VALUE(x, value) x = value,
#
#define ENUM_CASE(x, name) \ #define ENUM_CASE(x, name) \
case name::x: \ case name::x: \
return #x; return #x;
@ -45,8 +47,8 @@
static methods for use with the enum. static methods for use with the enum.
*/ */
#define ENUM(name, type, values...) \ #define ENUM_WITH_START_VALUE(name, type, startValue, values...) \
enum class name : type { values }; \ enum class name : type { MACRO_UTILS_FOR_EACH_WITH_VALUE(ENUM_VALUE, ___MACRO_UTILS_NARGS(values) - 1, values) }; \
class name##Helper { \ class name##Helper { \
inline static uint32_t constexpr ConstHash(char const* input) { \ inline static uint32_t constexpr ConstHash(char const* input) { \
return *input ? static_cast<uint32_t>(*input) + 33 * ConstHash(input + 1) : 5381; \ return *input ? static_cast<uint32_t>(*input) + 33 * ConstHash(input + 1) : 5381; \
@ -104,3 +106,5 @@
return false; \ return false; \
} \ } \
}; };
#define ENUM(name, type, values...) ENUM_WITH_START_VALUE(name, type, 0, values);

260
src/MacroUtils.hpp
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File diff suppressed because one or more lines are too long

22
src/MacroUtilsGenerator.py
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@ -7,18 +7,38 @@ def generator(num):
file.write("#define ___MACRO_UTILS_FE_0(FUNC, arg)\n") file.write("#define ___MACRO_UTILS_FE_0(FUNC, arg)\n")
file.write("#define ___MACRO_UTILS_FE_1(FUNC, arg, X) FUNC(X, arg)\n") file.write("#define ___MACRO_UTILS_FE_1(FUNC, arg, X) FUNC(X, arg)\n")
for i in range(2, num + 1): for i in range(2, num + 1):
file.write("#define ___MACRO_UTILS_FE_" + str(i) + "(FUNC, arg, X, ...) FUNC(X, arg) ___MACRO_UTILS_FE_" + str(i -1) + "(FUNC, arg, __VA_ARGS__)\n") file.write("#define ___MACRO_UTILS_FE_" + str(i) + "(FUNC, arg, X, ...) FUNC(X, arg) ___MACRO_UTILS_FE_" +
str(i - 1) + "(FUNC, arg, __VA_ARGS__)\n")
file.write("#define ___MACRO_UTILS_FE_" + str(num + 1) +"(FUNC, arg, X, ...) THE_FOREACH_MACRO_CURRENTLY_ONLY_SUPPORTS_UP_TO_" + file.write("#define ___MACRO_UTILS_FE_" + str(num + 1) +"(FUNC, arg, X, ...) THE_FOREACH_MACRO_CURRENTLY_ONLY_SUPPORTS_UP_TO_" +
str(num) + "_VALUES ___MACRO_UTILS_FE_" + str(num) + "(FUNC, arg, __VA_ARGS__)\n") str(num) + "_VALUES ___MACRO_UTILS_FE_" + str(num) + "(FUNC, arg, __VA_ARGS__)\n")
file.write("#define ___MACRO_UTILS_FE_VAL_0(FUNC, arg)\n")
file.write("#define ___MACRO_UTILS_FE_VAL_1(FUNC, arg, X) FUNC(X, arg)\n")
for i in range(2, num + 1):
file.write("#define ___MACRO_UTILS_FE_VAL_" + str(i) + "(FUNC, arg, X, ...) FUNC(X, arg -" + str(i - 1) + ") ___MACRO_UTILS_FE_VAL_" +
str(i - 1) + "(FUNC, arg , __VA_ARGS__)\n")
file.write("#define ___MACRO_UTILS_FE_VAL_" + str(num + 1) +"(FUNC, arg, X, ...) THE_FOREACH_MACRO_CURRENTLY_ONLY_SUPPORTS_UP_TO_" +
str(num) + "_VALUES ___MACRO_UTILS_FE_VAL_" + str(num) + "(FUNC, arg, __VA_ARGS__)\n")
file.write("#define ___MACRO_UTILS_GET_MACRO(") file.write("#define ___MACRO_UTILS_GET_MACRO(")
for i in range(0, num + 2): for i in range(0, num + 2):
file.write("_" + str(i) + ", ") file.write("_" + str(i) + ", ")
file.write("NAME, ...) NAME\n") file.write("NAME, ...) NAME\n")
file.write("#define MACRO_UTILS_FOR_EACH(action, arg, ...) ___MACRO_UTILS_GET_MACRO(_0, __VA_ARGS__") file.write("#define MACRO_UTILS_FOR_EACH(action, arg, ...) ___MACRO_UTILS_GET_MACRO(_0, __VA_ARGS__")
for i in range(num + 1, 0, -1): for i in range(num + 1, 0, -1):
file.write(", ___MACRO_UTILS_FE_" + str(i)) file.write(", ___MACRO_UTILS_FE_" + str(i))
file.write(") (action, arg, __VA_ARGS__)\n") file.write(") (action, arg, __VA_ARGS__)\n")
file.write("#define ___MACRO_UTILS_GET_MACRO_WITH_VALUE(")
for i in range(0, num + 2):
file.write("_" + str(i) + ", ")
file.write("NAME, ...) NAME\n")
file.write("#define MACRO_UTILS_FOR_EACH_WITH_VALUE(action, arg, ...) ___MACRO_UTILS_GET_MACRO_WITH_VALUE(_0, __VA_ARGS__")
for i in range(num + 1, 0, -1):
file.write(", ___MACRO_UTILS_FE_VAL_" + str(i))
file.write(") (action, arg, __VA_ARGS__)\n")
file.write("// count arguments\n") file.write("// count arguments\n")
file.write("#define ___MACRO_UTILS_NARGS(...) ___MACRO_UTILS_NARGS_(__VA_ARGS__") file.write("#define ___MACRO_UTILS_NARGS(...) ___MACRO_UTILS_NARGS_(__VA_ARGS__")
for i in range(num, -1, -1): for i in range(num, -1, -1):