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authorKartik K. Agaram <vc@akkartik.com>2021-11-07 10:09:27 -0800
committerKartik K. Agaram <vc@akkartik.com>2021-11-07 10:09:27 -0800
commit1f3ed8210d45b035a8f76185587f97e147fc7402 (patch)
treeda907b4c8aef4e26e84d0ec4b7ab3a827cdb57ad /etc/strict.lua
parent2b7ffea31612c16ab16735f6806195ab471ae409 (diff)
downloadteliva-1f3ed8210d45b035a8f76185587f97e147fc7402.tar.gz
delete some Lua 5.1 things
These are likely to suffer bitrot.
Diffstat (limited to 'etc/strict.lua')
-rw-r--r--etc/strict.lua41
1 files changed, 0 insertions, 41 deletions
diff --git a/etc/strict.lua b/etc/strict.lua
deleted file mode 100644
index 604619d..0000000
--- a/etc/strict.lua
+++ /dev/null
@@ -1,41 +0,0 @@
---
--- strict.lua
--- checks uses of undeclared global variables
--- All global variables must be 'declared' through a regular assignment
--- (even assigning nil will do) in a main chunk before being used
--- anywhere or assigned to inside a function.
---
-
-local getinfo, error, rawset, rawget = debug.getinfo, error, rawset, rawget
-
-local mt = getmetatable(_G)
-if mt == nil then
-  mt = {}
-  setmetatable(_G, mt)
-end
-
-mt.__declared = {}
-
-local function what ()
-  local d = getinfo(3, "S")
-  return d and d.what or "C"
-end
-
-mt.__newindex = function (t, n, v)
-  if not mt.__declared[n] then
-    local w = what()
-    if w ~= "main" and w ~= "C" then
-      error("assign to undeclared variable '"..n.."'", 2)
-    end
-    mt.__declared[n] = true
-  end
-  rawset(t, n, v)
-end
-  
-mt.__index = function (t, n)
-  if not mt.__declared[n] and what() ~= "C" then
-    error("variable '"..n.."' is not declared", 2)
-  end
-  return rawget(t, n)
-end
-