Add string encoding to wire protocol

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 436 matching lines @@
     }
   }
   if (static_fields != NULL) {
     *static_fields =
         Api::NewHandle(isolate, isolate->debugger()->GetStaticFields(cls));
   }
   return Api::True(isolate);
 }
 
 
+DART_EXPORT Dart_Handle Dart_ScriptGetSource(
+                            intptr_t library_id,
+                            Dart_Handle script_url_in) {
+  Isolate* isolate = Isolate::Current();
+  DARTSCOPE(isolate);
+  const Library& lib = Library::Handle(Library::GetLibrary(library_id));
+  if (lib.IsNull()) {
+    return Api::NewError("%s: %d is not a valid library id",
+                         CURRENT_FUNC, library_id);
+  }
+  String& script_url = String::Handle();
+  UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
+  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_GetScriptSource(
                             Dart_Handle library_url_in,
                             Dart_Handle script_url_in) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   String& library_url = String::Handle();
   UNWRAP_AND_CHECK_PARAM(String, library_url, library_url_in);
   String& script_url = String::Handle();
   UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
 
@@ skipping 121 matching lines @@
   for (int i = 0; i < num_libs; i++) {
     lib ^= libs.At(i);
     ASSERT(!lib.IsNull());
     lib_url = lib.url();
     library_url_list.SetAt(i, lib_url);
   }
   return Api::NewHandle(isolate, library_url_list.raw());
 }
 
 }  // namespace dart