EIP170 code size limit

Author: Jan Xie

fixtures

@@ -24,5 +24,7 @@ module Constant
     PRIVKEY_ZERO = ("\x00"*32).freeze
     PRIVKEY_ZERO_HEX = ('0'*64).freeze
 
+    CONTRACT_CODE_SIZE_LIMIT = 0x6000
+
   end
 end

lib/ethereum/constant.rb

@@ -114,7 +114,12 @@ def create(msg)
       if res.true?
         return 1, gas, msg.to if dat.empty?
 
-        gcost = dat.size * Opcodes::GCONTRACTBYTE
+        gcost = if post_hardfork?(:spurious_dragon)
+                  dat.size > Constant::CONTRACT_CODE_SIZE_LIMIT ?
+                    Constant::UINT_MAX : dat.size * Opcodes::GCONTRACTBYTE
+                else
+                  dat.size * Opcodes::GCONTRACTBYTE
+                end
         if gas >= gcost
           gas -= gcost
         else