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-- Copyright (c) 2010 by Robert G. Jakabosky <bobby@sharedrealm.com>
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy
-- of this software and associated documentation files (the "Software"), to deal
-- in the Software without restriction, including without limitation the rights
-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-- copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in
-- all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-- THE SOFTWARE.
function dump_meta_recur(seen, obj, depth, dbg)
local meta = getmetatable(obj)
if meta == nil then return '' end
local out = ', mt: ' .. tostring(meta) .. ' '
-- check if this metatable has been seen already.
if seen[meta] then
return out .. tostring(meta)
end
return out .. dump_recur(seen, meta, depth, dbg)
end
function dump_recur(seen, obj, depth, dbg)
local t = type(obj)
-- if not a table just convert to string.
if t ~= "table" then
local out
if t == "string" then
out = '"' .. obj .. '"'
else
out = tostring(obj)
if dbg == 1 then
out = out .. dump_meta_recur(seen, obj, depth, dbg)
end
end
return out
end
-- check if table has a __tostring metamethod.
if dbg ~= 1 then
local m = getmetatable(obj)
if m then
local tostr = m.__tostring
if tostr then
out = '"' .. tostr(obj) .. '"'
return out
end
end
end
-- check if this table has been seen already.
if seen[obj] then
return "Already dumped " .. tostring(obj)
end
seen[obj] = true
-- restrict max depth.
if depth >= 10 then
return "{... max depth reached ...}"
end
depth = depth + 1
-- output table key/value pairs
local tabs = string.rep(" ",depth)
local out
if dbg == 1 then
out = tostring(obj) .. " {\n"
else
out = "{\n"
end
for k,v in pairs(obj) do
if type(k) ~= "number" then
out = out .. tabs .. '[' .. dump_recur(seen, k, depth, dbg) .. '] = ' ..
dump_recur(seen, v, depth, dbg) .. ',\n'
else
out = out .. tabs .. '[' .. k .. '] = ' .. dump_recur(seen, v, depth, dbg) .. ',\n'
end
end
out = out .. tabs:sub(1,-3) .. "}"
if dbg == 1 then
out = out .. dump_meta_recur(seen, obj, depth, dbg)
end
return out
end
function dbg_dump(obj)
local seen = {}
return dump_recur(seen, obj, 0, 1)
end
function dump(obj)
local seen = {}
return dump_recur(seen, obj, 0, 0)
end
local function sizeof2(size, test, ...)
collectgarbage"collect"
size= collectgarbage"count"*1024 - size
print("used size: " .. size)
return size, ...
end
function sizeof(test, ...)
local size=0
if type(test) == "string" then
test=assert(loadstring(test))
end
collectgarbage"collect"
size=collectgarbage"count"*1024
return sizeof2(size, test, test(...))
end
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