don't fail if object doesn't match class types strictly

Author: leafo

moonscript/util.lua

@@ -103,7 +103,7 @@ dump = function(what)
  end
  seen[what] = false
  local class_name
- if what.__class then
+ if type(what.__class) == "table" and type(what.__class.__name) == "string" then
  class_name = "<" .. tostring(what.__class.__name) .. ">"
  end
  return tostring(class_name or "") .. "{\n" .. concat(lines) .. (" "):rep((depth - 1) * 4) .. "}\n"

moonscript/util.moon

@@ -70,7 +70,7 @@ dump = (what) ->
 
  seen[what] = false
 
- class_name = if what.__class
+ class_name = if type(what.__class) == "table" and type(what.__class.__name) == "string"
  "<#{what.__class.__name}>"
 
  "#{class_name or ""}{\n" .. concat(lines) .. (" ")\rep((depth - 1)*4) .. "}\n"