mirror of
https://github.com/thunderbrewhq/thunderbrew
synced 2025-10-27 22:36:05 +03:00
13 lines
260 B
Lua
13 lines
260 B
Lua
-- make global variables readonly
|
|
|
|
local f=function (t,i) error("cannot redefine global variable `"..i.."'",2) end
|
|
local g={}
|
|
local G=getfenv()
|
|
setmetatable(g,{__index=G,__newindex=f})
|
|
setfenv(1,g)
|
|
|
|
-- an example
|
|
rawset(g,"x",3)
|
|
x=2
|
|
y=1 -- cannot redefine `y'
|