Reland of "Make d8 stop using to-be-deprecated APIs"

src/d8-readline.cc

 // Copyright 2012 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 <stdio.h>  // NOLINT
 #include <string.h> // NOLINT
 #include <readline/readline.h> // NOLINT
 #include <readline/history.h> // NOLINT
 
 // The readline includes leaves RETURN defined which breaks V8 compilation.
 #undef RETURN
 
 #include "src/d8.h"
 
 // There are incompatibilities between different versions and different
 // implementations of readline.  This smooths out one known incompatibility.
 #if RL_READLINE_VERSION >= 0x0500
 #define completion_matches rl_completion_matches
 #endif
 
 
 namespace v8 {
 
 
 class ReadLineEditor: public LineEditor {
  public:
   ReadLineEditor() : LineEditor(LineEditor::READLINE, "readline") { }
-  virtual Handle<String> Prompt(const char* prompt);
+  virtual Local<String> Prompt(const char* prompt);
   virtual bool Open(Isolate* isolate);
   virtual bool Close();
   virtual void AddHistory(const char* str);
 
   static const char* kHistoryFileName;
   static const int kMaxHistoryEntries;
 
  private:
 #ifndef V8_SHARED
   static char** AttemptedCompletion(const char* text, int start, int end);
@@ skipping 34 matching lines @@
   stifle_history(kMaxHistoryEntries);
   return read_history(kHistoryFileName) == 0;
 }
 
 
 bool ReadLineEditor::Close() {
   return write_history(kHistoryFileName) == 0;
 }
 
 
-Handle<String> ReadLineEditor::Prompt(const char* prompt) {
+Local<String> ReadLineEditor::Prompt(const char* prompt) {
   char* result = NULL;
   result = readline(prompt);
-  if (result == NULL) return Handle<String>();
+  if (result == NULL) return Local<String>();
   AddHistory(result);
   return String::NewFromUtf8(isolate_, result);
 }
 
 
 void ReadLineEditor::AddHistory(const char* str) {
   // Do not record empty input.
   if (strlen(str) == 0) return;
   // Remove duplicate history entry.
   history_set_pos(history_length-1);
@@ skipping 14 matching lines @@
                                            int start,
                                            int end) {
   char** result = completion_matches(text, CompletionGenerator);
   rl_attempted_completion_over = true;
   return result;
 }
 
 
 char* ReadLineEditor::CompletionGenerator(const char* text, int state) {
   static unsigned current_index;
-  static Persistent<Array> current_completions;
+  static Global<Array> current_completions;
   Isolate* isolate = read_line_editor.isolate_;
   HandleScope scope(isolate);
-  Handle<Array> completions;
+  Local<Array> completions;
   if (state == 0) {
     Local<String> full_text = String::NewFromUtf8(isolate,
                                                   rl_line_buffer,
                                                   String::kNormalString,
                                                   rl_point);
     completions = Shell::GetCompletions(isolate,
                                         String::NewFromUtf8(isolate, text),
                                         full_text);
     current_completions.Reset(isolate, completions);
     current_index = 0;
   } else {
     completions = Local<Array>::New(isolate, current_completions);
   }
   if (current_index < completions->Length()) {
-    Handle<Integer> index = Integer::New(isolate, current_index);
-    Handle<Value> str_obj = completions->Get(index);
+    Local<Integer> index = Integer::New(isolate, current_index);
+    Local<Value> str_obj = completions->Get(index);
     current_index++;
     String::Utf8Value str(str_obj);
     return strdup(*str);
   } else {
     current_completions.Reset();
     return NULL;
   }
 }
 #endif  // V8_SHARED
 
 
 }  // namespace v8