Fix native argument handling

runtime/lib/regexp.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/bootstrap_natives.h"
 #include "vm/exceptions.h"
 #include "vm/native_entry.h"
 #include "vm/object.h"
 
 #include "lib/regexp_jsc.h"
 
 namespace dart {
 
 static void CheckAndThrowExceptionIfNull(const Instance& obj) {
   if (obj.IsNull()) {
     GrowableArray<const Object*> args;
     Exceptions::ThrowByType(Exceptions::kNullPointer, args);
   }
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_factory, 4) {
-  ASSERT(AbstractTypeArguments::CheckedHandle(arguments->At(0)).IsNull());
-  const Instance& arg1 = Instance::CheckedHandle(arguments->At(1));
+  ASSERT(AbstractTypeArguments::CheckedHandle(
+      arguments->NativeArgAt(0)).IsNull());
+  const Instance& arg1 = Instance::CheckedHandle(arguments->NativeArgAt(1));
   CheckAndThrowExceptionIfNull(arg1);
-  GET_NATIVE_ARGUMENT(String, pattern, arguments->At(1));
-  GET_NATIVE_ARGUMENT(Instance, handle_multi_line, arguments->At(2));
-  GET_NATIVE_ARGUMENT(Instance, handle_ignore_case, arguments->At(3));
+  GET_NATIVE_ARGUMENT(String, pattern, arguments->NativeArgAt(1));
+  GET_NATIVE_ARGUMENT(Instance, handle_multi_line, arguments->NativeArgAt(2));
+  GET_NATIVE_ARGUMENT(Instance, handle_ignore_case, arguments->NativeArgAt(3));
   bool ignore_case = handle_ignore_case.raw() == Bool::True();
   bool multi_line = handle_multi_line.raw() == Bool::True();
   return Jscre::Compile(pattern, multi_line, ignore_case);
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_getPattern, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   return regexp.pattern();
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_multiLine, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   return Bool::Get(regexp.is_multi_line());
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_ignoreCase, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   return Bool::Get(regexp.is_ignore_case());
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_getGroupCount, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   if (regexp.is_initialized()) {
     return regexp.num_bracket_expressions();
   }
   const String& pattern = String::Handle(regexp.pattern());
   const String& errmsg =
       String::Handle(String::New("Regular expression is not initialized yet"));
   GrowableArray<const Object*> args;
   args.Add(&pattern);
   args.Add(&errmsg);
   Exceptions::ThrowByType(Exceptions::kIllegalJSRegExp, args);
   return Object::null();
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_ExecuteMatch, 3) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
-  const Instance& arg1 = Instance::CheckedHandle(arguments->At(1));
+  const Instance& arg1 = Instance::CheckedHandle(arguments->NativeArgAt(1));
   CheckAndThrowExceptionIfNull(arg1);
-  GET_NATIVE_ARGUMENT(String, str, arguments->At(1));
-  GET_NATIVE_ARGUMENT(Smi, start_index, arguments->At(2));
+  GET_NATIVE_ARGUMENT(String, str, arguments->NativeArgAt(1));
+  GET_NATIVE_ARGUMENT(Smi, start_index, arguments->NativeArgAt(2));
   return Jscre::Execute(regexp, str, start_index.Value());
 }
 
 }  // namespace dart