Last change
on this file since 8877 was
6746,
checked in by rgrieder, 14 years ago
|
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
|
File size:
948 bytes
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Rev | Line | |
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[6663] | 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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