Check for OOM in HeapPage::Allocate.

runtime/vm/pages.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/pages.h"
 
 #include "platform/assert.h"
 #include "vm/compiler_stats.h"
 #include "vm/gc_marker.h"
 #include "vm/gc_sweeper.h"
@@ skipping 43 matching lines @@
   result->memory_ = memory;
   result->next_ = NULL;
   result->executable_ = is_executable;
   return result;
 }
 
 
 HeapPage* HeapPage::Allocate(intptr_t size_in_words, PageType type) {
   VirtualMemory* memory =
       VerifiedMemory::Reserve(size_in_words << kWordSizeLog2);
+  if (memory == NULL) {
+    FATAL1("Out of memory while allocating %" Pd " words.\n",
+           size_in_words);
+  }
   return Initialize(memory, type);
 }
 
 
 void HeapPage::Deallocate() {
   // The memory for this object will become unavailable after the delete below.
   delete memory_;
 }
 
 
@@ skipping 920 matching lines @@
   for (int i = 0; i < history_.Size() - 1; i++) {
     Entry current = history_.Get(i);
     Entry previous = history_.Get(i + 1);
     gc_time += current.end - current.start;
     total_time += current.end - previous.end;
   }
   if (total_time == 0) {
     return 0;
   } else {
     ASSERT(total_time >= gc_time);
-    int result= static_cast<int>((static_cast<double>(gc_time) /
+    int result = static_cast<int>((static_cast<double>(gc_time) /
                              static_cast<double>(total_time)) * 100);

[Ivan Posva, 2014/12/17 01:27:38]

Weird indent.

[koda, 2014/12/17 01:43:08]

Done.

     return result;
   }
 }
 
 }  // namespace dart