forked from Mirrorlandia_minetest/minetest
Add strict module
Also fix leaking globals found by it.
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parent
6afdb22ba7
commit
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47
builtin/common/strict.lua
Normal file
47
builtin/common/strict.lua
Normal file
@ -0,0 +1,47 @@
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-- Always warn when creating a global variable, even outside of a function.
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-- This ignores mod namespaces (variables with the same name as the current mod).
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local WARN_INIT = false
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local function warn(message)
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print(os.date("%H:%M:%S: WARNING: ")..message)
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end
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local meta = {}
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local declared = {}
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function meta:__newindex(name, value)
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local info = debug.getinfo(2, "Sl")
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local desc = ("%s:%d"):format(info.short_src, info.currentline)
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if not declared[name] then
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if info.what ~= "main" and info.what ~= "C" then
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warn(("Assignment to undeclared global %q inside"
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.." a function at %s.")
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:format(name, desc))
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end
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declared[name] = true
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end
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-- Ignore mod namespaces
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if WARN_INIT and (not core.get_current_modname or
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name ~= core.get_current_modname()) then
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warn(("Global variable %q created at %s.")
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:format(name, desc))
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end
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rawset(self, name, value)
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end
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function meta:__index(name)
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local info = debug.getinfo(2, "Sl")
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if not declared[name] and info.what ~= "C" then
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warn(("Undeclared global variable %q accessed at %s:%s")
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:format(name, info.short_src, info.currentline))
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end
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return rawget(self, name)
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end
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setmetatable(_G, meta)
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@ -7,7 +7,7 @@
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function core.string_to_privs(str, delim)
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assert(type(str) == "string")
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delim = delim or ','
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privs = {}
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local privs = {}
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for _, priv in pairs(string.split(str, delim)) do
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privs[priv:trim()] = true
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end
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@ -17,7 +17,7 @@ end
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function core.privs_to_string(privs, delim)
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assert(type(privs) == "table")
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delim = delim or ','
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list = {}
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local list = {}
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for priv, bool in pairs(privs) do
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if bool then
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table.insert(list, priv)
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@ -56,7 +56,7 @@ core.register_entity(":__builtin:item", {
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item_texture = core.registered_items[itemname].inventory_image
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item_type = core.registered_items[itemname].type
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end
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prop = {
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local prop = {
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is_visible = true,
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visual = "wielditem",
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textures = {itemname},
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@ -17,6 +17,7 @@ local gamepath = scriptdir.."game"..DIR_DELIM
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local commonpath = scriptdir.."common"..DIR_DELIM
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local asyncpath = scriptdir.."async"..DIR_DELIM
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dofile(commonpath.."strict.lua")
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dofile(commonpath.."serialize.lua")
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dofile(commonpath.."misc_helpers.lua")
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