Support Float64Arrays

src/heap.cc

 // Copyright 2011 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 1782 matching lines @@
     if (!maybe_obj->ToObject(&obj)) return false;
   }
   set_external_unsigned_int_array_map(Map::cast(obj));
 
   { MaybeObject* maybe_obj = AllocateMap(EXTERNAL_FLOAT_ARRAY_TYPE,
                                          ExternalArray::kAlignedSize);
     if (!maybe_obj->ToObject(&obj)) return false;
   }
   set_external_float_array_map(Map::cast(obj));
 
+  { MaybeObject* maybe_obj = AllocateMap(EXTERNAL_DOUBLE_ARRAY_TYPE,
+                                         ExternalArray::kAlignedSize);
+    if (!maybe_obj->ToObject(&obj)) return false;
+  }
+  set_external_double_array_map(Map::cast(obj));
+
   { MaybeObject* maybe_obj = AllocateMap(CODE_TYPE, kVariableSizeSentinel);
     if (!maybe_obj->ToObject(&obj)) return false;
   }
   set_code_map(Map::cast(obj));
 
   { MaybeObject* maybe_obj = AllocateMap(JS_GLOBAL_PROPERTY_CELL_TYPE,
                                          JSGlobalPropertyCell::kSize);
     if (!maybe_obj->ToObject(&obj)) return false;
   }
   set_global_property_cell_map(Map::cast(obj));
@@ skipping 468 matching lines @@
     case kExternalShortArray:
       return kExternalShortArrayMapRootIndex;
     case kExternalUnsignedShortArray:
       return kExternalUnsignedShortArrayMapRootIndex;
     case kExternalIntArray:
       return kExternalIntArrayMapRootIndex;
     case kExternalUnsignedIntArray:
       return kExternalUnsignedIntArrayMapRootIndex;
     case kExternalFloatArray:
       return kExternalFloatArrayMapRootIndex;
+    case kExternalDoubleArray:
+      return kExternalDoubleArrayMapRootIndex;
     case kExternalPixelArray:
       return kExternalPixelArrayMapRootIndex;
     default:
       UNREACHABLE();
       return kUndefinedValueRootIndex;
   }
 }
 
 
 MaybeObject* Heap::NumberFromDouble(double value, PretenureFlag pretenure) {
@@ skipping 3546 matching lines @@
 }
 
 
 void ExternalStringTable::TearDown() {
   new_space_strings_.Free();
   old_space_strings_.Free();
 }
 
 
 } }  // namespace v8::internal