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AP_Scripting: don't put userdata and ap_objects into globals 

They are never accessed from globals. Only their metatables are
accessed, using luaL_getmetatable.

Saves ~2.9K of Lua heap.
This commit is contained in:
Thomas Watson 2024-06-15 15:29:12 -05:00 committed by Andrew Tridgell
parent 50eac0ef31
commit 8e303675fe
1 changed files with 3 additions and 18 deletions
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21
libraries/AP_Scripting/generator/src/main.c
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@ -2504,46 +2504,31 @@ void emit_loaders(void) {
fprintf(source, " // userdata metatables\n");
fprintf(source, " for (uint32_t i = 0; i < ARRAY_SIZE(userdata_fun); i++) {\n");
fprintf(source, " luaL_newmetatable(L, userdata_fun[i].name);\n");
fprintf(source, " lua_pushcclosure(L, userdata_fun[i].func, 0);\n");
fprintf(source, " lua_pushcfunction(L, userdata_fun[i].func);\n");
fprintf(source, " lua_setfield(L, -2, \"__index\");\n");
fprintf(source, " if (userdata_fun[i].operators != nullptr) {\n");
fprintf(source, " luaL_setfuncs(L, userdata_fun[i].operators, 0);\n");
fprintf(source, " }\n");
fprintf(source, " lua_pushstring(L, \"__call\");\n");
fprintf(source, " lua_pushvalue(L, -2);\n");
fprintf(source, " lua_settable(L, -3);\n");
fprintf(source, " lua_pop(L, 1);\n");
fprintf(source, " lua_newuserdata(L, 0);\n");
fprintf(source, " luaL_getmetatable(L, userdata_fun[i].name);\n");
fprintf(source, " lua_setmetatable(L, -2);\n");
fprintf(source, " lua_setglobal(L, userdata_fun[i].name);\n");
fprintf(source, " }\n");
fprintf(source, "\n");
fprintf(source, " // ap object metatables\n");
fprintf(source, " for (uint32_t i = 0; i < ARRAY_SIZE(ap_object_fun); i++) {\n");
fprintf(source, " luaL_newmetatable(L, ap_object_fun[i].name);\n");
fprintf(source, " lua_pushcclosure(L, ap_object_fun[i].func, 0);\n");
fprintf(source, " lua_pushcfunction(L, ap_object_fun[i].func);\n");
fprintf(source, " lua_setfield(L, -2, \"__index\");\n");
fprintf(source, " lua_pushstring(L, \"__call\");\n");
fprintf(source, " lua_pushvalue(L, -2);\n");
fprintf(source, " lua_settable(L, -3);\n");
fprintf(source, " lua_pop(L, 1);\n");
fprintf(source, " lua_newuserdata(L, 0);\n");
fprintf(source, " luaL_getmetatable(L, ap_object_fun[i].name);\n");
fprintf(source, " lua_setmetatable(L, -2);\n");
fprintf(source, " lua_setglobal(L, ap_object_fun[i].name);\n");
fprintf(source, " }\n");
fprintf(source, "\n");
fprintf(source, " // singleton metatables\n");
fprintf(source, " for (uint32_t i = 0; i < ARRAY_SIZE(singleton_fun); i++) {\n");
fprintf(source, " luaL_newmetatable(L, singleton_fun[i].name);\n");
fprintf(source, " lua_pushcclosure(L, singleton_fun[i].func, 0);\n");
fprintf(source, " lua_pushcfunction(L, singleton_fun[i].func);\n");
fprintf(source, " lua_setfield(L, -2, \"__index\");\n");
fprintf(source, " lua_pushstring(L, \"__call\");\n");
fprintf(source, " lua_pushvalue(L, -2);\n");