Evaluate expression in context of an object

runtime/include/dart_debugger_api.h

 // Copyright (c) 2011, 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.
 
 #ifndef INCLUDE_DART_DEBUGGER_API_H_
 #define INCLUDE_DART_DEBUGGER_API_H_
 
 #include "include/dart_api.h"
 
 typedef struct _Dart_Breakpoint* Dart_Breakpoint;
@@ skipping 454 matching lines @@
  * Requires there to be a current isolate.
  *
  * \return A handle to an array containing variable names and
  * corresponding values. Variable names are at array offsets 2*n,
  * values at offset 2*n+1.
  */
 DART_EXPORT Dart_Handle Dart_GetGlobalVariables(intptr_t library_id);
 
 
 /**
+ * Execute the expression given in string \expr in the context
+ * of \target.
+ *
+ * Requires there to be a current isolate.
+ *
+ * The expression is evaluated in the context of \target.
+ * If \target is a Dart object, the expression is evaluated as if
+ * it were an instance method of the class of the object.
+ * TODO(hausner): add other execution contexts, e.g. library and class.
+ * 
+ * \return A handle to the computed value, or an error object if
+ * the compilation of the expression fails, or if the evaluation throws
+ * an error.
+ */
+DART_EXPORT Dart_Handle Dart_EvaluateExpr(Dart_Handle target,
+                                          Dart_Handle expr);
+
+
+/**
  * Returns the class of the given \object.
  *
  * Requires there to be a current isolate.
  *
  * \return A handle to the class object.
  */
 DART_EXPORT Dart_Handle Dart_GetObjClass(Dart_Handle object);
 
 
 /**
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  * \param request A REST-like string, which uses '/' to separate
  *     parameters. The first parameter is always the status type.
  *
  * \return The requested status as a JSON formatted string, with the
  *     contents defined by the status plug-in. The caller is responsible
  *     for freeing this string.
  */
 DART_EXPORT char* Dart_GetVmStatus(const char* request);
 
 #endif  // INCLUDE_DART_DEBUGGER_API_H_