New bigint implementation in the vm.

runtime/vm/raw_object.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/raw_object.h"
 
 #include "vm/class_table.h"
 #include "vm/dart.h"
 #include "vm/freelist.h"
 #include "vm/isolate.h"
@@ skipping 79 matching lines @@
         instance_size = Context::InstanceSize(num_variables);
         break;
       }
       case kContextScopeCid: {
         const RawContextScope* raw_context_scope =
             reinterpret_cast<const RawContextScope*>(this);
         intptr_t num_variables = raw_context_scope->ptr()->num_variables_;
         instance_size = ContextScope::InstanceSize(num_variables);
         break;
       }
-      case kBigintCid: {
-        const RawBigint* raw_bgi = reinterpret_cast<const RawBigint*>(this);
-        intptr_t length = raw_bgi->ptr()->allocated_length_;
-        instance_size = Bigint::InstanceSize(length);
-        break;
-      }
       case kOneByteStringCid: {
         const RawOneByteString* raw_string =
             reinterpret_cast<const RawOneByteString*>(this);
         intptr_t string_length = Smi::Value(raw_string->ptr()->length_);
         instance_size = OneByteString::InstanceSize(string_length);
         break;
       }
       case kTwoByteStringCid: {
         const RawTwoByteString* raw_string =
             reinterpret_cast<const RawTwoByteString*>(this);
@@ skipping 566 matching lines @@
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   return Mint::InstanceSize();
 }
 
 
 intptr_t RawBigint::VisitBigintPointers(RawBigint* raw_obj,
                                         ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
-  RawBigint* obj = raw_obj->ptr();
-  intptr_t length = obj->allocated_length_;
-  return Bigint::InstanceSize(length);
+  visitor->VisitPointers(raw_obj->from(), raw_obj->to());
+  return Bigint::InstanceSize();
 }
 
 
 intptr_t RawDouble::VisitDoublePointers(RawDouble* raw_obj,
                                         ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   return Double::InstanceSize();
 }
 
@@ skipping 186 matching lines @@
 intptr_t RawUserTag::VisitUserTagPointers(
     RawUserTag* raw_obj, ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return UserTag::InstanceSize();
 }
 
 
 }  // namespace dart