- Represent strings internally in UTF-16 format, this makes it

runtime/vm/heap_profiler.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/heap_profiler.h"
 
 #include "vm/dart_api_state.h"
 #include "vm/object.h"
 #include "vm/raw_object.h"
 #include "vm/stack_frame.h"
@@ skipping 260 matching lines @@
     case kFloat64ArrayCid: {
       const RawFloat64Array* raw_float64_array =
           reinterpret_cast<const RawFloat64Array*>(raw_obj);
       WritePrimitiveArrayDump(raw_float64_array,
                               kDouble,
                               &raw_float64_array->data_[0]);
       break;
     }
     case kOneByteStringCid:
     case kTwoByteStringCid:
-    case kFourByteStringCid:
     case kExternalOneByteStringCid:
-    case kExternalTwoByteStringCid:
-    case kExternalFourByteStringCid: {
+    case kExternalTwoByteStringCid: {
       WriteInstanceDump(StringId(reinterpret_cast<const RawString*>(raw_obj)));
       break;
     }
     default:
       WriteInstanceDump(raw_obj);
   }
 }
 
 
 void HeapProfiler::Write(const void* data, intptr_t size) {
@@ skipping 53 matching lines @@
     const RawOneByteString* onestr =
         reinterpret_cast<const RawOneByteString*>(raw_string);
     for (intptr_t i = 0; i < Smi::Value(onestr->ptr()->length_); ++i) {
       length += Utf8::Length(onestr->ptr()->data_[i]);
     }
     characters = new char[length];
     for (intptr_t i = 0, j = 0; i < Smi::Value(onestr->ptr()->length_); ++i) {
       int32_t ch = onestr->ptr()->data_[i];
       j += Utf8::Encode(ch, &characters[j]);
     }
-  } else if (class_id == kTwoByteStringCid) {
+  } else {
+    ASSERT(class_id == kTwoByteStringCid);
     const RawTwoByteString* twostr =
         reinterpret_cast<const RawTwoByteString*>(raw_string);
     for (intptr_t i = 0; i < Smi::Value(twostr->ptr()->length_); ++i) {
       length += Utf8::Length(twostr->ptr()->data_[i]);
     }
     characters = new char[length];
     for (intptr_t i = 0, j = 0; i < Smi::Value(twostr->ptr()->length_); ++i) {
       int32_t ch = twostr->ptr()->data_[i];
       j += Utf8::Encode(ch, &characters[j]);
     }
-  } else {
-    ASSERT(class_id == kFourByteStringCid);
-    const RawFourByteString* fourstr =
-        reinterpret_cast<const RawFourByteString*>(raw_string);
-    for (intptr_t i = 0; i < Smi::Value(fourstr->ptr()->length_); ++i) {
-      length += Utf8::Length(fourstr->ptr()->data_[i]);
-    }
-    characters = new char[length];
-    for (intptr_t i = 0, j = 0; i < Smi::Value(fourstr->ptr()->length_); ++i) {
-      int32_t ch = fourstr->ptr()->data_[i];
-      j += Utf8::Encode(ch, &characters[j]);
-    }
   }
   Record record(kStringInUtf8, this);
   record.WritePointer(ObjectId(raw_string));
   for (intptr_t i = 0; i < length; ++i) {
     record.Write8(characters[i]);
   }
   delete[] characters;
 }
 
 
@@ skipping 324 matching lines @@
   RawObject* raw_obj = handle->raw();
   visitor_->VisitPointer(&raw_obj);
 }
 
 
 void HeapProfilerObjectVisitor::VisitObject(RawObject* raw_obj) {
   profiler_->WriteObject(raw_obj);
 }
 
 }  // namespace dart