From cdab528313c06e9a6df5ae740a58f624b65332d3 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwei@kingsome.cn>
Date: Fri, 10 Feb 2023 22:22:03 +0800
Subject: [PATCH] 1

---
 a8/a8.h        | 14 ++++++++++++++
 a8/magicenum.h | 43 +++++++++++++++++++++++++++++++++++++++++++
 a8/types.h     |  6 ++++++
 3 files changed, 63 insertions(+)
 create mode 100644 a8/magicenum.h

diff --git a/a8/a8.h b/a8/a8.h
index 059f421..7471987 100644
--- a/a8/a8.h
+++ b/a8/a8.h
@@ -26,4 +26,18 @@
 
 #define A8_ABORT() do{printf("abort file:%s line:%d func:%s\n", __FILE__, __LINE__, __func__);fflush(stdout);fflush(stderr);abort();}while(0);
 
+#define A8_DECLARE_ENUM(E, ...) \
+enum E \
+{ \
+__VA_ARGS__ \
+}; \
+template<> constexpr const char* GetEnumString<E>() { return #__VA_ARGS__; };
+
+#define A8_DECLARE_CLASS_ENUM(E, T, ...) \
+enum class E : T \
+{ \
+__VA_ARGS__ \
+}; \
+template<> constexpr const char* GetEnumString<E>() { return #__VA_ARGS__; };
+
 const float A8_PI = 3.1415926f;
diff --git a/a8/magicenum.h b/a8/magicenum.h
new file mode 100644
index 0000000..11a4538
--- /dev/null
+++ b/a8/magicenum.h
@@ -0,0 +1,43 @@
+#pragma once
+
+#include <vector>
+
+namespace a8
+{
+
+    template<typename T>
+    std::vector<std::pair<std::string, int>>* GetEnumFields(T* t = nullptr)
+    {
+        static std::vector<std::pair<std::string, int>>* fields = nullptr;
+        if (!fields) {
+            fields = new std::vector<std::pair<std::string, int>>();
+            const char* p = ::GetEnumString<T>();
+            while (*p) {
+                if (*p == '_' || isalpha(*p)) {
+                    const char* p_key_begin = p++;
+                    while (*p == '_' || isalpha(*p) || isalnum(*p)) { ++p; }
+                    const char* p_key_end = p - 1;
+
+                    while (*p != '=') { ++p; }
+
+                    ++p;
+                    while (!isalnum(*p)) { ++p; }
+                    const char* p_val_begin = p++;
+                    while (isalnum(*p)) { ++p; }
+                    const char* p_val_end = p - 1;
+
+                    std::string key(p_key_begin, p_key_end + 1);
+                    std::string val(p_val_begin, p_val_end + 1);
+                    fields->push_back(std::make_pair
+                                      (key,
+                                       a8::XValue(val).GetInt()));
+                    //printf("%s=%s\n", key.c_str(), val.c_str());
+                } else {
+                    ++p;
+                }
+            }
+        }
+        return fields;
+    }
+
+}
diff --git a/a8/types.h b/a8/types.h
index 80e33aa..81d42e5 100644
--- a/a8/types.h
+++ b/a8/types.h
@@ -45,3 +45,9 @@ namespace a8
         class Class;
     }
 };
+
+template<typename T>
+const char* GetEnumString()
+{
+    return nullptr;
+};