Mark mutator methods of canonical constants as invisible to reflective access.

runtime/lib/integers.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/bootstrap_natives.h"
 
 #include "include/dart_api.h"
 #include "vm/dart_entry.h"
 #include "vm/dart_api_impl.h"
 #include "vm/exceptions.h"
@@ skipping 422 matching lines @@
 
 DEFINE_NATIVE_ENTRY(Bigint_getDigits, 1) {
   const Bigint& bigint = Bigint::CheckedHandle(arguments->NativeArgAt(0));
   return bigint.digits();
 }
 
 
 DEFINE_NATIVE_ENTRY(Bigint_setDigits, 2) {
   const Bigint& bigint = Bigint::CheckedHandle(arguments->NativeArgAt(0));
   const TypedData& digits = TypedData::CheckedHandle(arguments->NativeArgAt(1));
+  ASSERT(!digits.IsNull());
   bigint.set_digits(digits);
   return Object::null();
 }
 
 
 DEFINE_NATIVE_ENTRY(Bigint_allocate, 1) {
   // Argument is null type arguments, since class Bigint is not parameterized.
   return Bigint::New();
 }
 
 }  // namespace dart