Add a command line option to generate source code for a script

runtime/vm/debugger_api_impl.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 "include/dart_debugger_api.h"
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
 #include "vm/debugger.h"
 #include "vm/isolate.h"
@@ skipping 550 matching lines @@
   const Script& script = Script::Handle(lib.LookupScript(script_url));
   if (script.IsNull()) {
     return Api::NewError("%s: script '%s' not found in library '%s'",
                          CURRENT_FUNC, script_url.ToCString(),
                          String::Handle(lib.url()).ToCString());
   }
   return Api::NewHandle(isolate, script.Source());
 }
 
 
+DART_EXPORT Dart_Handle Dart_GenerateScriptSource(Dart_Handle library_url_in,
+                                                  Dart_Handle script_url_in) {
+  Isolate* isolate = Isolate::Current();
+  DARTSCOPE(isolate);
+  UNWRAP_AND_CHECK_PARAM(String, library_url, library_url_in);
+  UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
+
+  const Library& library = Library::Handle(Library::LookupLibrary(library_url));
+  if (library.IsNull()) {
+    return Api::NewError("%s: library '%s' not found",
+                         CURRENT_FUNC, library_url.ToCString());
+  }
+
+  const Script& script = Script::Handle(library.LookupScript(script_url));
+  if (script.IsNull()) {
+    return Api::NewError("%s: script '%s' not found in library '%s'",
+                         CURRENT_FUNC, script_url.ToCString(),
+                         library_url.ToCString());
+  }
+
+  return Api::NewHandle(isolate, script.GenerateSource());
+}
+
+
 DART_EXPORT Dart_Handle Dart_GetScriptSource(
                             Dart_Handle library_url_in,
                             Dart_Handle script_url_in) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   UNWRAP_AND_CHECK_PARAM(String, library_url, library_url_in);
   UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
 
   const Library& library = Library::Handle(Library::LookupLibrary(library_url));
   if (library.IsNull()) {
@@ skipping 172 matching lines @@
 
 
 DART_EXPORT char* Dart_GetVmStatus(const char* request) {
   if (strncmp(request, "/isolate/", 9) == 0) {
     return Isolate::GetStatus(request);
   }
   return NULL;
 }
 
 }  // namespace dart