Remove dead full snapshot support from the recursive descent serializer.

runtime/vm/dart_api_message.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/dart_api_message.h"
 #include "vm/object.h"
 #include "vm/snapshot_ids.h"
 #include "vm/symbols.h"
 #include "vm/unicode.h"
 
@@ skipping 624 matching lines @@
       object->value.as_bigint.digits = digits;
       return object;
     }
     case kDoubleCid: {
       // Doubles are handled specially when being sent as part of message
       // snapshots.
       UNREACHABLE();
     }
     case kOneByteStringCid: {
       intptr_t len = ReadSmiValue();
-      intptr_t hash = ReadSmiValue();
-      USE(hash);
       uint8_t *latin1 =
           reinterpret_cast<uint8_t*>(allocator(len * sizeof(uint8_t)));
       intptr_t utf8_len = 0;
       for (intptr_t i = 0; i < len; i++) {
         latin1[i] = Read<uint8_t>();
         utf8_len += Utf8::Length(latin1[i]);
       }
       Dart_CObject* object = AllocateDartCObjectString(utf8_len);
       AddBackRef(object_id, object, kIsDeserialized);
       char* p = object->value.as_string;
       for (intptr_t i = 0; i < len; i++) {
         p += Utf8::Encode(latin1[i], p);
       }
       *p = '\0';
       ASSERT(p == (object->value.as_string + utf8_len));
       return object;
     }
     case kTwoByteStringCid: {
       intptr_t len = ReadSmiValue();
-      intptr_t hash = ReadSmiValue();
-      USE(hash);
       uint16_t *utf16 = reinterpret_cast<uint16_t*>(
           allocator(len * sizeof(uint16_t)));
       intptr_t utf8_len = 0;
       // Read all the UTF-16 code units.
       for (intptr_t i = 0; i < len; i++) {
         utf16[i] = Read<uint16_t>();
       }
       // Calculate the UTF-8 length and check if the string can be
       // UTF-8 encoded.
       bool valid = true;
@@ skipping 518 matching lines @@
       if (len > String::kMaxElements) {
         return false;
       }
 
       // Write out the serialization header value for this object.
       WriteInlinedHeader(object);
       // Write out the class and tags information.
       WriteIndexedObject(type == Utf8::kLatin1 ? kOneByteStringCid
                                                : kTwoByteStringCid);
       WriteTags(0);
-      // Write string length, hash and content
+      // Write string length and content.
       WriteSmi(len);
-      WriteSmi(0);  // TODO(sgjesse): Hash - not written.
       if (type == Utf8::kLatin1) {
         uint8_t* latin1_str =
             reinterpret_cast<uint8_t*>(::malloc(len * sizeof(uint8_t)));
         bool success = Utf8::DecodeToLatin1(utf8_str,
                                             utf8_len,
                                             latin1_str,
                                             len);
         ASSERT(success);
         for (intptr_t i = 0; i < len; i++) {
           Write<uint8_t>(latin1_str[i]);
@@ skipping 118 matching lines @@
     if (!success) {
       UnmarkAllCObjects(object);
       return false;
     }
   }
   UnmarkAllCObjects(object);
   return true;
 }
 
 }  // namespace dart