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Consolidate API object code (#12728)

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Co-authored-by: sfan5 <sfan5@live.de>
This commit is contained in:
Jude Melton-Houghton 2022-10-04 08:31:36 -04:00 • committed by GitHub
parent b21fb18379
commit 7632af3c73
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GPG key ID: 4AEE18F83AFDEB23
42 changed files with 463 additions and 1079 deletions
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78
src/script/lua_api/l_metadata.cpp
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@ -25,28 +25,27 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "map.h"
#include "server.h"
// LUALIB_API
void *luaL_checkudata_is_metadataref(lua_State *L, int ud) {
void *p = lua_touserdata(L, ud);
if (p != NULL && // value is a userdata?
lua_getmetatable(L, ud)) { // does it have a metatable?
lua_getfield(L, -1, "metadata_class");
if (lua_type(L, -1) == LUA_TSTRING) { // does it have a metadata_class field?
return p;
}
}
luaL_typerror(L, ud, "MetaDataRef");
return NULL;
}
MetaDataRef* MetaDataRef::checkobject(lua_State *L, int narg)
MetaDataRef *MetaDataRef::checkAnyMetadata(lua_State *L, int narg)
{
luaL_checktype(L, narg, LUA_TUSERDATA);
void *ud = luaL_checkudata_is_metadataref(L, narg);
if (!ud)
void *ud = lua_touserdata(L, narg);
bool ok = ud && luaL_getmetafield(L, narg, "metadata_class");
if (ok) {
ok = lua_isstring(L, -1);
lua_pop(L, 1);
}
if (!ok)
luaL_typerror(L, narg, "MetaDataRef");
return *(MetaDataRef**)ud; // unbox pointer
return *(MetaDataRef **)ud; // unbox pointer
}
int MetaDataRef::gc_object(lua_State *L)
{
MetaDataRef *o = *(MetaDataRef **)lua_touserdata(L, 1);
delete o;
return 0;
}
// Exported functions
@ -56,7 +55,7 @@ int MetaDataRef::l_contains(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
IMetadata *meta = ref->getmeta(false);
@ -72,7 +71,7 @@ int MetaDataRef::l_get(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
IMetadata *meta = ref->getmeta(false);
@ -93,7 +92,7 @@ int MetaDataRef::l_get_string(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
IMetadata *meta = ref->getmeta(false);
@ -113,7 +112,7 @@ int MetaDataRef::l_set_string(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
size_t len = 0;
const char *s = lua_tolstring(L, 3, &len);
@ -130,7 +129,7 @@ int MetaDataRef::l_get_int(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
IMetadata *meta = ref->getmeta(false);
@ -150,7 +149,7 @@ int MetaDataRef::l_set_int(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
int a = luaL_checkint(L, 3);
std::string str = itos(a);
@ -166,7 +165,7 @@ int MetaDataRef::l_get_float(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
IMetadata *meta = ref->getmeta(false);
@ -186,7 +185,7 @@ int MetaDataRef::l_set_float(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
std::string name = luaL_checkstring(L, 2);
float a = readParam<float>(L, 3);
std::string str = ftos(a);
@ -202,7 +201,7 @@ int MetaDataRef::l_to_table(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
IMetadata *meta = ref->getmeta(true);
if (meta == NULL) {
@ -221,7 +220,7 @@ int MetaDataRef::l_from_table(lua_State *L)
{
MAP_LOCK_REQUIRED;
MetaDataRef *ref = checkobject(L, 1);
MetaDataRef *ref = checkAnyMetadata(L, 1);
int base = 2;
ref->clearMeta();
@ -286,9 +285,9 @@ bool MetaDataRef::handleFromTable(lua_State *L, int table, IMetadata *meta)
// equals(self, other)
int MetaDataRef::l_equals(lua_State *L)
{
MetaDataRef *ref1 = checkobject(L, 1);
MetaDataRef *ref1 = checkAnyMetadata(L, 1);
IMetadata *data1 = ref1->getmeta(false);
MetaDataRef *ref2 = checkobject(L, 2);
MetaDataRef *ref2 = checkAnyMetadata(L, 2);
IMetadata *data2 = ref2->getmeta(false);
if (data1 == NULL || data2 == NULL)
lua_pushboolean(L, data1 == data2);
@ -296,3 +295,20 @@ int MetaDataRef::l_equals(lua_State *L)
lua_pushboolean(L, *data1 == *data2);
return 1;
}
void MetaDataRef::registerMetadataClass(lua_State *L, const char *name,
const luaL_Reg *methods)
{
const luaL_Reg metamethods[] = {
{"__eq", l_equals},
{"__gc", gc_object},
{0, 0}
};
registerClass(L, name, methods, metamethods);
// Set metadata_class in the metatable for MetaDataRef::checkAnyMetadata.
luaL_getmetatable(L, name);
lua_pushstring(L, name);
lua_setfield(L, -2, "metadata_class");
lua_pop(L, 1);
}