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
|
#include "LuaUtil.h"
namespace {
const char* mainStateRefName = "_lua_mainthread";
}
namespace luacpp {
namespace util {
const char* getValueName(ValueType type)
{
switch (type) {
case ValueType::NONE:
return "none";
case ValueType::NIL:
return "nil";
case ValueType::BOOLEAN:
return "boolean";
case ValueType::LIGHTUSERDATA:
return "light userdata";
case ValueType::STRING:
return "string";
case ValueType::NUMBER:
return "number";
case ValueType::TABLE:
return "table";
case ValueType::FUNCTION:
return "function";
case ValueType::USERDATA:
return "userdata";
case ValueType::THREAD:
return "thread";
default:
return "unknown";
}
}
void initializeLuaSupportLib(lua_State* L)
{
auto mainThread = lua_pushthread(L);
Assertion(mainThread, "Must be called with the main thread as the parameter!");
lua_setfield(L, LUA_REGISTRYINDEX, mainStateRefName);
}
lua_State* getMainThread(lua_State* L)
{
if (lua_pushthread(L)) {
// State is the main thread, just return that
lua_pop(L, 1);
return L;
}
lua_pushstring(L, mainStateRefName);
lua_rawget(L, LUA_REGISTRYINDEX);
auto state = lua_tothread(L, -1);
// Need to pop both the thread from L and the main thread to return the stack back to neutral
lua_pop(L, 2);
return state;
}
} // namespace util
} // namespace luacpp
|
