1 files changed, 82 insertions, 0 deletions
diff --git a/src/script/rapidjson/luax.hpp b/src/script/rapidjson/luax.hpp
new file mode 100644
index 0000000..e8ea7c6
--- /dev/null
+++ b/src/script/rapidjson/luax.hpp
@@ -0,0 +1,82 @@
+#ifndef __LUA_RAPIDJSION_LUACOMPAT_H__
+#define __LUA_RAPIDJSION_LUACOMPAT_H__
+
+#include <cmath>
+#include <limits>
+#include <cstdint>
+
+#include "qcommon/q3_lauxlib.h"
+
+#include "lua.hpp"
+
+namespace luax
+{
+    inline void setfuncs(lua_State* L, const luaL_Reg* funcs)
+    { luaL_setfuncs(L, funcs, 0); }
+
+    inline size_t rawlen(lua_State* L, int idx)
+    { return lua_rawlen(L, idx); }
+
+    inline bool isinteger(lua_State* L, int idx, int64_t* out = nullptr)
+    {
+        if (lua_isinteger(L, idx)) // but it maybe not detect all integers.
+        {
+            if (out)
+                *out = lua_tointeger(L, idx);
+            return true;
+        }
+
+        double intpart;
+        if (std::modf(lua_tonumber(L, idx), &intpart) == 0.0)
+        {
+            if (std::numeric_limits<lua_Integer>::min() <= intpart
+                    && intpart <= std::numeric_limits<lua_Integer>::max())
+            {
+                if (out)
+                    *out = static_cast<int64_t>(intpart);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    inline int typerror(lua_State* L, int narg, const char* tname)
+    {
+        const char *msg = lua_pushfstring(L, "%s expected, got %s", tname, luaL_typename(L, narg));
+        return luaL_argerror(L, narg, msg);
+    }
+
+    inline bool optboolfield(lua_State* L, int idx, const char* name, bool def)
+    {
+        auto v = def;
+        auto t = lua_type(L, idx);
+
+        if (t != LUA_TTABLE && t != LUA_TNONE)
+            luax::typerror(L, idx, "table");
+
+        if (t != LUA_TNONE)
+        {
+            lua_getfield(L, idx, name);
+            if (!lua_isnoneornil(L, -1))
+                v = lua_toboolean(L, -1) != 0;
+            lua_pop(L, 1);
+        }
+
+        return v;
+    }
+
+    inline int optintfield(lua_State* L, int idx, const char* name, int def)
+    {
+        auto v = def;
+        lua_getfield(L, idx, name);
+
+        if (lua_isnumber(L, -1))
+            v = static_cast<int>(lua_tointeger(L, -1));
+
+        lua_pop(L, 1);
+        return v;
+    }
+
+}
+
+#endif