Remove Execution::CharAt

src/execution.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/execution.h"
 
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/messages.h"
@@ skipping 584 matching lines @@
       isolate->native_context()->regexp_function());
   Handle<Object> re_obj;
   ASSIGN_RETURN_ON_EXCEPTION(
       isolate, re_obj,
       RegExpImpl::CreateRegExpLiteral(function, pattern, flags),
       JSRegExp);
   return Handle<JSRegExp>::cast(re_obj);
 }
 
 
-Handle<Object> Execution::CharAt(Handle<String> string, uint32_t index) {
-  Isolate* isolate = string->GetIsolate();
-  Factory* factory = isolate->factory();
-
-  int int_index = static_cast<int>(index);
-  if (int_index < 0 || int_index >= string->length()) {
-    return factory->undefined_value();
-  }
-
-  Handle<Object> char_at = Object::GetProperty(
-      isolate->js_builtins_object(),
-      factory->char_at_string()).ToHandleChecked();
-  if (!char_at->IsJSFunction()) {
-    return factory->undefined_value();
-  }
-
-  Handle<Object> index_object = factory->NewNumberFromInt(int_index);
-  Handle<Object> index_arg[] = { index_object };
-  Handle<Object> result;
-  if (!TryCall(Handle<JSFunction>::cast(char_at),
-               string,
-               arraysize(index_arg),
-               index_arg).ToHandle(&result)) {
-    return factory->undefined_value();
-  }
-  return result;
-}
-
-
 Handle<String> Execution::GetStackTraceLine(Handle<Object> recv,
                                             Handle<JSFunction> fun,
                                             Handle<Object> pos,
                                             Handle<Object> is_global) {
   Isolate* isolate = fun->GetIsolate();
   Handle<Object> args[] = { recv, fun, pos, is_global };
   MaybeHandle<Object> maybe_result =
       TryCall(isolate->get_stack_trace_line_fun(),
               isolate->js_builtins_object(),
               arraysize(args),
@@ skipping 42 matching lines @@
   }
 
   isolate_->counters()->stack_interrupts()->Increment();
   isolate_->counters()->runtime_profiler_ticks()->Increment();
   isolate_->runtime_profiler()->OptimizeNow();
 
   return isolate_->heap()->undefined_value();
 }
 
 } }  // namespace v8::internal