fix array storagebytes

src/solidity/decodeInfo.js

@@ -128,9 +128,13 @@ function ArrayType (type, stateDefinitions) {
     storageBytes = 32
   } else {
     if (subArray) {
-      storageBytes = subArray.storageBytes // size on storage of one item of the array
+      storageBytes = subArray.storageBytes
+    }
+    if (storageBytes > 32) {
+      storageBytes = 32 * arraySize * Math.ceil(storageBytes / 32)
+    } else {
+      storageBytes = 32 * (arraySize / Math.floor(32 / storageBytes))
     }
-    storageBytes = Math.ceil(storageBytes * arraySize) // size on storage of one the whole array
   }
 
   return {

test/decodeInfo.js

@@ -23,7 +23,7 @@ tape('solidity', function (t) {
     decodeInfo = index.solidity.decodeInfo.decode(stateDec[2].attributes.type, stateDec)
     checkDecodeInfo(st, decodeInfo, true, 192, 'struct structDef[3]')
     decodeInfo = index.solidity.decodeInfo.decode(stateDec[3].attributes.type, stateDec)
-    checkDecodeInfo(st, decodeInfo, true, 48, 'bytes12[4]')
+    checkDecodeInfo(st, decodeInfo, true, 64, 'bytes12[4]')
 
     stateDec = index.solidity.astHelper.extractStateVariables('contractArray', output.sources)
     decodeInfo = index.solidity.decodeInfo.decode(stateDec[0].attributes.type, stateDec)