Improve error handling in the process library.

runtime/bin/dartutils.cc

 // Copyright (c) 2011, 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 "bin/dartutils.h"
 
 const char* DartUtils::kBuiltinLibURL = "./dart:builtin-lib";
 const char* DartUtils::kBuiltinLibSpec = "library { }";
 const char* DartUtils::kIdFieldName = "_id";
 
 
 int64_t DartUtils::GetIntegerValue(Dart_Handle value_obj) {
-  assert(Dart_IsInteger(value_obj));
+  ASSERT(Dart_IsInteger(value_obj));
   Dart_Result result = Dart_IntegerValue(value_obj);
   ASSERT(Dart_IsValidResult(result));
   return Dart_GetResultAsCInt64(result);
 }
 
 const char* DartUtils::GetStringValue(Dart_Handle str_obj) {
   Dart_Result result = Dart_StringToCString(str_obj);
   ASSERT(Dart_IsValidResult(result));
   return Dart_GetResultAsCString(result);
 }
@@ skipping 11 matching lines @@
   Dart_Result result = Dart_SetInstanceField(handle,
                                              Dart_NewString(name),
                                              Dart_NewInteger(val));
   ASSERT(Dart_IsValidResult(result));
 }
 
 intptr_t DartUtils::GetIntegerInstanceField(Dart_Handle handle,
                                             const char* name) {
   Dart_Result result =
       Dart_GetInstanceField(handle, Dart_NewString(name));
-  assert(Dart_IsValidResult(result));
+  ASSERT(Dart_IsValidResult(result));
   intptr_t value = DartUtils::GetIntegerValue(Dart_GetResult(result));
   return value;
 }
 
 void DartUtils::SetStringInstanceField(Dart_Handle handle,
                                        const char* name,
                                        const char* val) {
   Dart_Result result = Dart_SetInstanceField(handle,
                                              Dart_NewString(name),
                                              Dart_NewString(val));
   ASSERT(Dart_IsValidResult(result));
 }