Inline native setters for length and data in the optimizer.

runtime/lib/growable_array.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 "platform/assert.h"
 
 #include "vm/assembler.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/exceptions.h"
 #include "vm/native_entry.h"
@@ skipping 58 matching lines @@
   const GrowableObjectArray& array =
       GrowableObjectArray::CheckedHandle(arguments->NativeArgAt(0));
   return Smi::New(array.Capacity());
 }
 
 
 DEFINE_NATIVE_ENTRY(GrowableObjectArray_setLength, 2) {
   const GrowableObjectArray& array =
       GrowableObjectArray::CheckedHandle(arguments->NativeArgAt(0));
   GET_NON_NULL_NATIVE_ARGUMENT(Smi, length, arguments->NativeArgAt(1));
-  if ((length.Value() < 0) || (length.Value() > array.Capacity())) {
-    const Array& args = Array::Handle(Array::New(1));
-    args.SetAt(0, length);
-    Exceptions::ThrowByType(Exceptions::kRange, args);
-  }
+  ASSERT((length.Value() >= 0) && (length.Value() <= array.Capacity()));
   array.SetLength(length.Value());
   return Object::null();
 }
 
 
 DEFINE_NATIVE_ENTRY(GrowableObjectArray_setData, 2) {
   const GrowableObjectArray& array =
       GrowableObjectArray::CheckedHandle(arguments->NativeArgAt(0));
   GET_NON_NULL_NATIVE_ARGUMENT(Array, data, arguments->NativeArgAt(1));
   ASSERT(data.Length() > 0);
   array.SetData(data);
   return Object::null();
 }
 
 }  // namespace dart