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builtin.lua

This commit is contained in:
Perttu Ahola 2011-11-25 21:32:12 +02:00
parent 9e7ad1e2aa
commit 61ffe1eac4
2 changed files with 16 additions and 75 deletions

View file

@ -1,77 +1,7 @@
function basic_dump2(o)
if type(o) == "number" then
return tostring(o)
elseif type(o) == "string" then
return string.format("%q", o)
elseif type(o) == "boolean" then
return tostring(o)
elseif type(o) == "function" then
return "<function>"
elseif type(o) == "userdata" then
return "<userdata>"
elseif type(o) == "nil" then
return "nil"
else
error("cannot dump a " .. type(o))
return nil
end
end
function dump2(o, name, dumped)
name = name or "_"
dumped = dumped or {}
io.write(name, " = ")
if type(o) == "number" or type(o) == "string" or type(o) == "boolean"
or type(o) == "function" or type(o) == "nil"
or type(o) == "userdata" then
io.write(basic_dump2(o), "\n")
elseif type(o) == "table" then
if dumped[o] then
io.write(dumped[o], "\n")
else
dumped[o] = name
io.write("{}\n") -- new table
for k,v in pairs(o) do
local fieldname = string.format("%s[%s]", name, basic_dump2(k))
dump2(v, fieldname, dumped)
end
end
else
error("cannot dump a " .. type(o))
return nil
end
end
function dump(o, dumped)
dumped = dumped or {}
if type(o) == "number" then
return tostring(o)
elseif type(o) == "string" then
return string.format("%q", o)
elseif type(o) == "table" then
if dumped[o] then
return "<circular reference>"
end
dumped[o] = true
local t = {}
for k,v in pairs(o) do
t[#t+1] = "" .. k .. " = " .. dump(v, dumped)
end
return "{" .. table.concat(t, ", ") .. "}"
elseif type(o) == "boolean" then
return tostring(o)
elseif type(o) == "function" then
return "<function>"
elseif type(o) == "userdata" then
return "<userdata>"
elseif type(o) == "nil" then
return "nil"
else
error("cannot dump a " .. type(o))
return nil
end
end
-- Helper functions defined by builtin.lua:
-- dump2(obj, name="_", dumped={})
-- dump(obj, dumped={})
--
-- Textures:
-- Mods should prefix their textures with modname_, eg. given the mod
-- name "foomod", a texture could be called "foomod_superfurnace.png"