Add missing file

slither/printers/summary/variable_order.py

@@ -0,0 +1,31 @@
+"""
+    Module printing summary of the contract
+"""
+
+from prettytable import PrettyTable
+from slither.printers.abstract_printer import AbstractPrinter
+
+class VariableOrder(AbstractPrinter):
+
+    ARGUMENT = 'variable-order'
+    HELP = 'Print the storage order of the state variables'
+
+    WIKI = 'https://github.com/trailofbits/slither/wiki/Printer-documentation#variable-order'
+
+    def output(self, _filename):
+        """
+            _filename is not used
+            Args:
+                _filename(string)
+        """
+
+        txt = ''
+        for contract in self.slither.contracts_derived:
+            txt += '\n{}:\n'.format(contract.name)
+            table = PrettyTable(['Name', 'Type'])
+            for variable in contract.state_variables:
+                if not variable.is_constant:
+                    table.add_row([variable.name, str(variable.type)])
+            txt += str(table) + '\n'
+
+        self.info(txt)