Implement in-heap backing store for typed arrays.

src/objects-printer.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 118 matching lines @@
       break;
     case EXTERNAL_UNSIGNED_INT_ARRAY_TYPE:
       ExternalUnsignedIntArray::cast(this)->ExternalUnsignedIntArrayPrint(out);
       break;
     case EXTERNAL_FLOAT_ARRAY_TYPE:
       ExternalFloatArray::cast(this)->ExternalFloatArrayPrint(out);
       break;
     case EXTERNAL_DOUBLE_ARRAY_TYPE:
       ExternalDoubleArray::cast(this)->ExternalDoubleArrayPrint(out);
       break;
+#define PRINT_FIXED_TYPED_ARRAY(Type)                                          \
+    case Fixed##Type##Array::kInstanceType:                                    \
+      Fixed##Type##Array::cast(this)->FixedTypedArrayPrint(out);               \
+      break;
+
+    PRINT_FIXED_TYPED_ARRAY(Uint8)
+    PRINT_FIXED_TYPED_ARRAY(Int8)
+    PRINT_FIXED_TYPED_ARRAY(Uint16)
+    PRINT_FIXED_TYPED_ARRAY(Int16)
+    PRINT_FIXED_TYPED_ARRAY(Uint32)
+    PRINT_FIXED_TYPED_ARRAY(Int32)
+    PRINT_FIXED_TYPED_ARRAY(Float32)
+    PRINT_FIXED_TYPED_ARRAY(Float64)
+    PRINT_FIXED_TYPED_ARRAY(Uint8Clamped)
+
+#undef PPINT_FIXED_TYPED_ARRAY
+
+
     case FILLER_TYPE:
       PrintF(out, "filler");
       break;
     case JS_OBJECT_TYPE:  // fall through
     case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
     case JS_ARRAY_TYPE:
     case JS_GENERATOR_OBJECT_TYPE:
     case JS_REGEXP_TYPE:
       JSObject::cast(this)->JSObjectPrint(out);
       break;
@@ skipping 129 matching lines @@
 
 void ExternalFloatArray::ExternalFloatArrayPrint(FILE* out) {
   PrintF(out, "external float array");
 }
 
 
 void ExternalDoubleArray::ExternalDoubleArrayPrint(FILE* out) {
   PrintF(out, "external double array");
 }
 
+template <class Traits>
+void FixedTypedArray<Traits>::FixedTypedArrayPrint(FILE* out) {
+  PrintF(out, "fixed %s", Traits::Designator());
+}
+
 
 void JSObject::PrintProperties(FILE* out) {
   if (HasFastProperties()) {
     DescriptorArray* descs = map()->instance_descriptors();
     for (int i = 0; i < map()->NumberOfOwnDescriptors(); i++) {
       PrintF(out, "   ");
       descs->GetKey(i)->NamePrint(out);
       PrintF(out, ": ");
       switch (descs->GetType(i)) {
         case FIELD: {
@@ skipping 19 matching lines @@
           UNREACHABLE();
           break;
       }
     }
   } else {
     property_dictionary()->Print(out);
   }
 }
 
 
+template<class T>
+static void DoPrintElements(FILE *out, Object* object) {
+  T* p = T::cast(object);
+  for (int i = 0; i < p->length(); i++) {
+    PrintF(out, "   %d: %d\n", i, p->get_scalar(i));
+  }
+}
+
+
+template<class T>
+static void DoPrintDoubleElements(FILE* out, Object* object) {
+  T* p = T::cast(object);
+  for (int i = 0; i < p->length(); i++) {
+    PrintF(out, "   %d: %f\n", i, p->get_scalar(i));
+  }
+}
+
+
 void JSObject::PrintElements(FILE* out) {
   // Don't call GetElementsKind, its validation code can cause the printer to
   // fail when debugging.
   switch (map()->elements_kind()) {
     case FAST_HOLEY_SMI_ELEMENTS:
     case FAST_SMI_ELEMENTS:
     case FAST_HOLEY_ELEMENTS:
     case FAST_ELEMENTS: {
       // Print in array notation for non-sparse arrays.
       FixedArray* p = FixedArray::cast(elements());
@@ skipping 13 matching lines @@
           if (p->is_the_hole(i)) {
             PrintF(out, "   %d: <the hole>", i);
           } else {
             PrintF(out, "   %d: %g", i, p->get_scalar(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_scalar(i));
-      }
-      break;
+
+
+#define PRINT_ELEMENTS(Kind, Type)                                          \
+    case Kind: {                                                            \
+      DoPrintElements<Type>(out, elements());                               \
+      break;                                                                \
     }

[Toon Verwaest, 2013/12/23 10:40:32]

Nice cleanup!

-    case EXTERNAL_BYTE_ELEMENTS: {
-      ExternalByteArray* p = ExternalByteArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %d\n", i, static_cast<int>(p->get_scalar(i)));
-      }
-      break;
+
+#define PRINT_DOUBLE_ELEMENTS(Kind, Type)                                   \
+    case Kind: {                                                            \
+      DoPrintDoubleElements<Type>(out, elements());                         \
+      break;                                                                \
     }
-    case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: {
-      ExternalUnsignedByteArray* p =
-          ExternalUnsignedByteArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %d\n", i, static_cast<int>(p->get_scalar(i)));
-      }
-      break;
-    }
-    case EXTERNAL_SHORT_ELEMENTS: {
-      ExternalShortArray* p = ExternalShortArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %d\n", i, static_cast<int>(p->get_scalar(i)));
-      }
-      break;
-    }
-    case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: {
-      ExternalUnsignedShortArray* p =
-          ExternalUnsignedShortArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %d\n", i, static_cast<int>(p->get_scalar(i)));
-      }
-      break;
-    }
-    case EXTERNAL_INT_ELEMENTS: {
-      ExternalIntArray* p = ExternalIntArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %d\n", i, static_cast<int>(p->get_scalar(i)));
-      }
-      break;
-    }
-    case EXTERNAL_UNSIGNED_INT_ELEMENTS: {
-      ExternalUnsignedIntArray* p =
-          ExternalUnsignedIntArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %d\n", i, static_cast<int>(p->get_scalar(i)));
-      }
-      break;
-    }
-    case EXTERNAL_FLOAT_ELEMENTS: {
-      ExternalFloatArray* p = ExternalFloatArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %f\n", i, p->get_scalar(i));
-      }
-      break;
-    }
-    case EXTERNAL_DOUBLE_ELEMENTS: {
-      ExternalDoubleArray* p = ExternalDoubleArray::cast(elements());
-      for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "   %d: %f\n", i, p->get_scalar(i));
-      }
-      break;
-    }
+
+    PRINT_ELEMENTS(EXTERNAL_PIXEL_ELEMENTS, ExternalPixelArray)
+    PRINT_ELEMENTS(EXTERNAL_BYTE_ELEMENTS, ExternalByteArray)
+    PRINT_ELEMENTS(EXTERNAL_UNSIGNED_BYTE_ELEMENTS,
+        ExternalUnsignedByteArray)
+    PRINT_ELEMENTS(EXTERNAL_SHORT_ELEMENTS, ExternalShortArray)
+    PRINT_ELEMENTS(EXTERNAL_UNSIGNED_SHORT_ELEMENTS,
+        ExternalUnsignedShortArray)
+    PRINT_ELEMENTS(EXTERNAL_INT_ELEMENTS, ExternalIntArray)
+    PRINT_ELEMENTS(EXTERNAL_UNSIGNED_INT_ELEMENTS,
+        ExternalUnsignedIntArray)
+    PRINT_DOUBLE_ELEMENTS(EXTERNAL_FLOAT_ELEMENTS, ExternalFloatArray)
+    PRINT_DOUBLE_ELEMENTS(EXTERNAL_DOUBLE_ELEMENTS, ExternalDoubleArray)
+
+
+    PRINT_ELEMENTS(UINT8_ELEMENTS, FixedUint8Array)
+    PRINT_ELEMENTS(UINT8_CLAMPED_ELEMENTS, FixedUint8ClampedArray)
+    PRINT_ELEMENTS(INT8_ELEMENTS, FixedInt8Array)
+    PRINT_ELEMENTS(UINT16_ELEMENTS, FixedUint16Array)
+    PRINT_ELEMENTS(INT16_ELEMENTS, FixedInt16Array)
+    PRINT_ELEMENTS(UINT32_ELEMENTS, FixedUint32Array)
+    PRINT_ELEMENTS(INT32_ELEMENTS, FixedInt32Array)
+    PRINT_DOUBLE_ELEMENTS(FLOAT32_ELEMENTS, FixedFloat32Array)
+    PRINT_DOUBLE_ELEMENTS(FLOAT64_ELEMENTS, FixedFloat64Array)
+
+#undef PRINT_DOUBLE_ELEMENTS
+#undef PRINT_ELEMENTS
+
     case DICTIONARY_ELEMENTS:
       elements()->Print(out);
       break;
     case NON_STRICT_ARGUMENTS_ELEMENTS: {
       FixedArray* p = FixedArray::cast(elements());
       PrintF(out, "   parameter map:");
       for (int i = 2; i < p->length(); i++) {
         PrintF(out, " %d:", i - 2);
         p->get(i)->ShortPrint(out);
       }
@@ skipping 832 matching lines @@
     }
   }
   PrintF(out, "\n");
 }
 
 
 #endif  // OBJECT_PRINT
 
 
 } }  // namespace v8::internal