piccolo 0.3.3

Stackless Lua VM implemented in pure Rust
Documentation 
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

do
    local mt = {
        __index = function(table, key)
            return key
        end
    }

    local t = {}
    setmetatable(t, mt)

    assert(t.foo == "foo")
    assert(t["hello there"] == "hello there")
end

do
    local idx = {}

    local mt = {
        __index = idx,
    }

    local t = {}
    setmetatable(t, mt)

    assert(t.foo == nil)

    idx.foo = 3
    assert(t.foo == 3)
end

do
    local idx = {}

    local mt = {
        __index = idx,
        __newindex = idx,
    }

    local t = {}
    setmetatable(t, mt)

    assert(t.foo == nil)

    t.foo = 3
    assert(t.foo == 3 and idx.foo == 3)
    t.foo = 4
    assert(t.foo == 4 and idx.foo == 4)
end


do
    local idx = {}

    local mt = {
        __newindex = function(table, key, value) 
            idx[key] = value
        end,
    }

    local t = {}
    setmetatable(t, mt)

    t.foo = 3
    assert(idx.foo == 3)
    t.foo = 4
    assert(idx.foo == 4)
end