Merge bleeding edge up to 8774 into the GC branch.

src/objects-printer.cc

-// Copyright 2010 the V8 project authors. All rights reserved.
+// 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
 //       with the distribution.
@@ skipping 271 matching lines @@
     case FAST_ELEMENTS: {
       // Print in array notation for non-sparse arrays.
       FixedArray* p = FixedArray::cast(elements());
       for (int i = 0; i < p->length(); i++) {
         PrintF(out, "   %d: ", i);
         p->get(i)->ShortPrint(out);
         PrintF(out, "\n");
       }
       break;
     }
+    case FAST_DOUBLE_ELEMENTS: {
+      // Print in array notation for non-sparse arrays.
+      FixedDoubleArray* p = FixedDoubleArray::cast(elements());
+      for (int i = 0; i < p->length(); i++) {
+        if (p->is_the_hole(i)) {
+          PrintF(out, "   %d: <the hole>", i);
+        } else {
+          PrintF(out, "   %d: %g", i, p->get(i));
+        }
+        PrintF(out, "\n");
+      }
+      break;
+    }
     case EXTERNAL_PIXEL_ELEMENTS: {
       ExternalPixelArray* p = ExternalPixelArray::cast(elements());
       for (int i = 0; i < p->length(); i++) {
         PrintF(out, "   %d: %d\n", i, p->get(i));
       }
       break;
     }
     case EXTERNAL_BYTE_ELEMENTS: {
       ExternalByteArray* p = ExternalByteArray::cast(elements());
       for (int i = 0; i < p->length(); i++) {
@@ skipping 58 matching lines @@
       break;
     case NON_STRICT_ARGUMENTS_ELEMENTS: {
       FixedArray* p = FixedArray::cast(elements());
       for (int i = 2; i < p->length(); i++) {
         PrintF(out, "   %d: ", i);
         p->get(i)->ShortPrint(out);
         PrintF(out, "\n");
       }
       break;
     }
-    default:
-      UNREACHABLE();
-      break;
   }
 }
 
 
 void JSObject::JSObjectPrint(FILE* out) {
   PrintF(out, "%p: [JSObject]\n", reinterpret_cast<void*>(this));
   PrintF(out, " - map = %p\n", reinterpret_cast<void*>(map()));
   PrintF(out, " - prototype = %p\n", reinterpret_cast<void*>(GetPrototype()));
   PrintF(out, " {\n");
   PrintProperties(out);
@@ skipping 168 matching lines @@
     PrintF(out, "%c", Get(i));
   }
   if (len != length()) {
     PrintF(out, "%s", truncated_epilogue);
   }
 
   if (!StringShape(this).IsSymbol()) PrintF(out, "\"");
 }
 
 
+// This method is only meant to be called from gdb for debugging purposes.
+// Since the string can also be in two-byte encoding, non-ascii characters
+// will be ignored in the output.
+char* String::ToAsciiArray() {
+  // Static so that subsequent calls frees previously allocated space.
+  // This also means that previous results will be overwritten.
+  static char* buffer = NULL;
+  if (buffer != NULL) free(buffer);
+  buffer = new char[length()+1];
+  WriteToFlat(this, buffer, 0, length());
+  buffer[length()] = 0;
+  return buffer;
+}
+
+
 void JSProxy::JSProxyPrint(FILE* out) {
   HeapObject::PrintHeader(out, "JSProxy");
   PrintF(out, " - map = 0x%p\n", reinterpret_cast<void*>(map()));
   PrintF(out, " - handler = ");
   handler()->Print(out);
   PrintF(out, "\n");
 }
 
 
 void JSFunction::JSFunctionPrint(FILE* out) {
@@ skipping 273 matching lines @@
     desc.Print(out);
   }
   PrintF(out, "\n");
 }
 
 
 #endif  // OBJECT_PRINT
 
 
 } }  // namespace v8::internal