Explicitly initialize MarkCompactCollector and ExternalStringTable

src/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 116 matching lines @@
       previous_survival_rate_trend_(Heap::STABLE),
       survival_rate_trend_(Heap::STABLE),
       max_gc_pause_(0.0),
       total_gc_time_ms_(0.0),
       max_alive_after_gc_(0),
       min_in_mutator_(kMaxInt),
       alive_after_last_gc_(0),
       last_gc_end_timestamp_(0.0),
       marking_time_(0.0),
       sweeping_time_(0.0),
+      mark_compact_collector_(this),
       store_buffer_(this),
       marking_(this),
       incremental_marking_(this),
       number_idle_notifications_(0),
       last_idle_notification_gc_count_(0),
       last_idle_notification_gc_count_init_(false),
       mark_sweeps_since_idle_round_started_(0),
       gc_count_at_last_idle_gc_(0),
       scavenges_since_last_idle_round_(kIdleScavengeThreshold),
       full_codegen_bytes_generated_(0),
       crankshaft_codegen_bytes_generated_(0),
       gcs_since_last_deopt_(0),
 #ifdef VERIFY_HEAP
       no_weak_object_verification_scope_depth_(0),
 #endif
       allocation_sites_scratchpad_length(0),
       promotion_queue_(this),
       configured_(false),
+      external_string_table_(this),
       chunks_queued_for_free_(NULL),
       relocation_mutex_(NULL) {
   // Allow build-time customization of the max semispace size. Building
   // V8 with snapshots and a non-default max semispace size is much
   // easier if you can define it as part of the build environment.
 #if defined(V8_MAX_SEMISPACE_SIZE)
   max_semispace_size_ = reserved_semispace_size_ = V8_MAX_SEMISPACE_SIZE;
 #endif
 
   // Ensure old_generation_size_ is a multiple of kPageSize.
   ASSERT(MB >= Page::kPageSize);
 
   intptr_t max_virtual = OS::MaxVirtualMemory();
 
   if (max_virtual > 0) {
     if (code_range_size_ > 0) {
       // Reserve no more than 1/8 of the memory for the code range.
       code_range_size_ = Min(code_range_size_, max_virtual >> 3);
     }
   }
 
   memset(roots_, 0, sizeof(roots_[0]) * kRootListLength);
   native_contexts_list_ = NULL;
   array_buffers_list_ = Smi::FromInt(0);
   allocation_sites_list_ = Smi::FromInt(0);
-  mark_compact_collector_.heap_ = this;
-  external_string_table_.heap_ = this;
   // Put a dummy entry in the remembered pages so we can find the list the
   // minidump even if there are no real unmapped pages.
   RememberUnmappedPage(NULL, false);
 
   ClearObjectStats(true);
 }
 
 
 intptr_t Heap::Capacity() {
   if (!HasBeenSetUp()) return 0;
@@ skipping 7545 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 
 } }  // namespace v8::internal