Last change
on this file since 8739 was
6746,
checked in by rgrieder, 14 years ago
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Merged gamestates2 branch back to trunk.
This brings in some heavy changes in the GUI framework.
It should also fix problems with triggered asserts in the InputManager.
Note: PickupInventory does not seem to work —> Segfault when showing because before, the owner in GUIOverlay::setGUIName is already NULL.
I haven't tested it before, so I can't tell whether it's my changes.
|
-
Property svn:eol-style set to
native
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File size:
948 bytes
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Line | |
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1 | -- |
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2 | -- strict.lua |
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3 | -- checks uses of undeclared global variables |
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4 | -- All global variables must be 'declared' through a regular assignment |
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5 | -- (even assigning nil will do) in a main chunk before being used |
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6 | -- anywhere or assigned to inside a function. |
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7 | -- |
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8 | |
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9 | local mt = getmetatable(_G) |
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10 | if mt == nil then |
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11 | mt = {} |
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12 | setmetatable(_G, mt) |
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13 | end |
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14 | |
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15 | __STRICT = false |
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16 | mt.__declared = {} |
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17 | |
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18 | mt.__newindex = function (t, n, v) |
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19 | if __STRICT and not mt.__declared[n] then |
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20 | local d = debug.getinfo(2, "S") |
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21 | local w = d and d.what or "C" |
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22 | if w ~= "main" and w ~= "C" then |
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23 | error("assign to undeclared variable '"..n.."'", 2) |
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24 | end |
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25 | mt.__declared[n] = true |
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26 | end |
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27 | rawset(t, n, v) |
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28 | end |
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29 | |
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30 | mt.__index = function (t, n) |
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31 | if not mt.__declared[n] and debug.getinfo(2, "S").what ~= "C" then |
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32 | error("variable '"..n.."' is not declared", 2) |
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33 | end |
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34 | return rawget(t, n) |
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35 | end |
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36 | |
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37 | function global(...) |
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38 | for _, v in ipairs{...} do mt.__declared[v] = true end |
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39 | end |
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