Version 2.2.2

README.md

@@ -329,7 +329,7 @@ f(10, 5) -- Returns 25
 ### lume.serialize(x)
 Serializes the argument `x` into a string which can be loaded again using
 `lume.deserialize()`. Only booleans, numbers, tables and strings can be
-serialized. Circular references are not handled; all nested tables are
+serialized. Circular references will result in an error; all nested tables are
 serialized as unique tables.
 ```lua
 lume.serialize({a = "test", b = {1, 2, 3}, false})

lume.lua

@@ -7,7 +7,7 @@
 -- under the terms of the MIT license. See LICENSE for details.
 --
 
-local lume = { _version = "2.2.1" }
+local lume = { _version = "2.2.2" }
 
 local pairs, ipairs = pairs, ipairs
 local type, assert, unpack = type, assert, unpack or table.unpack
@@ -539,10 +539,15 @@ end
 local serialize
 
 local serialize_map = {
-  [ "number"  ] = tostring,
   [ "boolean" ] = tostring,
   [ "nil"     ] = tostring,
   [ "string"  ] = function(v) return string.format("%q", v) end,
+  [ "number"  ] = function(v)
+    if      v ~=  v     then return  "0/0"      --  nan
+    elseif  v ==  1 / 0 then return  "1/0"      --  inf
+    elseif  v == -1 / 0 then return "-1/0" end  -- -inf
+    return tostring(v)
+  end,
   [ "table"   ] = function(t, stk)
     stk = stk or {}
     if stk[t] then error("circular reference") end

test/test.lua

@@ -484,6 +484,10 @@ tests["lume.serialize, lume.deserialize"] = function()
   local t = { 1, 2, 3, 4, true, false, "cat", "dog", {1, 2, 3} }
   local s = lume.serialize(t)
   testeq( lume.deserialize(s), t )
+  testeq( lume.deserialize(lume.serialize(math.huge)), math.huge )
+  testeq( lume.deserialize(lume.serialize(-math.huge)), -math.huge )
+  local x = lume.deserialize(lume.serialize(0 / 0)) -- nan
+  testeq( x ~= x, true )
 end
 
 -- lume.split