fixup! fixup! fixup! add a scope class to manage the context of interaction with Python and simplify the variable exchanging

yagweb · yagweb · commit 354fdd45c015 · 2017-02-19T15:07:43.000+08:00
diff --git a/src/embed_tests/pyscope.cs b/src/embed_tests/pyscope.cs
@@ -73,7 +73,7 @@ public void TestImport()
             Assert.IsTrue(ps.Exists("sys"));
 
             ps.Exec("sys.attr1 = 2");
-            int value1 = (int)ps.Eval("sys.attr1").AsManagedObject(typeof(int));
+            int value1 = ps.Eval<int>("sys.attr1");
             int value2 = (int)sys.attr1.AsManagedObject(typeof(int));
             Assert.AreEqual(value1, 2);
             Assert.AreEqual(value2, 2);
diff --git a/src/runtime/pythonengine.cs b/src/runtime/pythonengine.cs
@@ -651,6 +651,19 @@ public PyObject Eval(string code)
             return new PyObject(ptr);
         }
 
+        /// <summary>
+        /// Evaluate a Python expression
+        /// </summary>
+        /// <remarks>
+        /// Evaluate a Python expression and convert the result to Managed Object.
+        /// </remarks>
+        public T Eval<T>(string code)
+        {
+            PyObject pyObj = Eval(code);
+            T obj = (T)pyObj.AsManagedObject(typeof(T));
+            return obj;
+        }
+
         /// <summary>
         /// Exec Method
         /// </summary>
