1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
#include "LuaEventSubscription.hpp"
#include <format>
#include <string_view>
using namespace Config::Lua;
static constexpr const char* MT = "HL.EventSubscription";
namespace {
struct SEventSubscriptionRef {
CLuaEventHandler* handler = nullptr;
uint64_t handle = 0;
bool active = false;
};
}
static int eventSubscriptionEq(lua_State* L) {
const auto* lhs = sc<SEventSubscriptionRef*>(luaL_checkudata(L, 1, MT));
const auto* rhs = sc<SEventSubscriptionRef*>(luaL_checkudata(L, 2, MT));
lua_pushboolean(L, lhs->handler == rhs->handler && lhs->handle == rhs->handle);
return 1;
}
static int eventSubscriptionToString(lua_State* L) {
const auto* ref = sc<SEventSubscriptionRef*>(luaL_checkudata(L, 1, MT));
const auto str = std::format("HL.EventSubscription({},{})", ref->handle, ref->active ? "active" : "inactive");
lua_pushstring(L, str.c_str());
return 1;
}
static int eventSubscriptionRemove(lua_State* L) {
auto* ref = sc<SEventSubscriptionRef*>(luaL_checkudata(L, 1, MT));
if (!ref->active || !ref->handler)
return 0;
ref->handler->unregisterEvent(ref->handle);
ref->active = false;
return 0;
}
static int eventSubscriptionIsActive(lua_State* L) {
auto* ref = sc<SEventSubscriptionRef*>(luaL_checkudata(L, 1, MT));
lua_pushboolean(L, ref->active);
return 1;
}
static int eventSubscriptionIndex(lua_State* L) {
luaL_checkudata(L, 1, MT);
const std::string_view key = luaL_checkstring(L, 2);
if (key == "remove")
lua_pushcfunction(L, eventSubscriptionRemove);
else if (key == "is_active")
lua_pushcfunction(L, eventSubscriptionIsActive);
else
lua_pushnil(L);
return 1;
}
void Objects::CLuaEventSubscription::setup(lua_State* L) {
registerMetatable(L, MT, eventSubscriptionIndex, gcRef<SEventSubscriptionRef>, eventSubscriptionEq, eventSubscriptionToString);
}
void Objects::CLuaEventSubscription::push(lua_State* L, CLuaEventHandler* handler, uint64_t handle) {
new (lua_newuserdata(L, sizeof(SEventSubscriptionRef))) SEventSubscriptionRef{.handler = handler, .handle = handle, .active = true};
luaL_getmetatable(L, MT);
lua_setmetatable(L, -2);
}
|
