- Support for patching of class methods and fields.

runtime/vm/dart_api_impl_test.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_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
 #include "platform/utils.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
@@ skipping 5463 matching lines @@
   EXPECT_STREQ("bar", result_cstr);
 }
 
 
 TEST_CASE(ParsePatchLibrary) {
   const char* kLibraryChars =
   "#library('patched_library');\n"
   "class A {\n"
   "  var _f;\n"
   "  external method(var value);\n"
+  "  get field() => _field;\n"
   "}\n"
   "external int unpatched();\n"
   "external int topLevel(var value);\n"
   "external int get topLevelGetter();\n"
   "external void set topLevelSetter(int value);\n";
 
   const char* kPatchChars =
-  "var _topLevelValue = -1;"
+  "patch class A {\n"
+  "  var _g;\n"
+  "  get _field() => _g;\n"
+  "  patch method(var value) {\n"
+  "    _g = value * 5;\n"
+  "  }\n"
+  "}\n"
+  "var _topLevelValue = -1;\n"
   "patch int topLevel(var value) => value * value;\n"
   "patch int set topLevelSetter(value) { _topLevelValue = value; }\n"
   "patch int get topLevelGetter() => 2 * _topLevelValue;\n"
   // Allow top level methods named patch.
   "patch(x) => x*3;\n";
 
   const char* kScriptChars =
   "#import('theLibrary');\n"
   "e1() => unpatched();\n"
   "m1() => topLevel(2);\n"
   "m2() {\n"
   "  topLevelSetter = 20;\n"
   "  return topLevelGetter;\n"
   "}\n"
-  "m3() => patch(7);\n";
+  "m3() => patch(7);\n"
+  "m4() {\n"
+  "  var a = new A();\n"
+  "  a.method(5);\n"
+  "  return a.field;\n"
+  "}\n";
 
   Dart_Handle result = Dart_SetLibraryTagHandler(library_handler);
   EXPECT_VALID(result);
 
   Dart_Handle url = Dart_NewString("theLibrary");
   Dart_Handle source = Dart_NewString(kLibraryChars);
   result = Dart_LoadLibrary(url, source);
   EXPECT_VALID(result);
 
   const String& patch_url = String::Handle(String::New("theLibrary patch"));
@@ skipping 30 matching lines @@
   EXPECT(Dart_IsInteger(result));
   EXPECT_VALID(Dart_IntegerToInt64(result, &value));
   EXPECT_EQ(40, value);
 
   value = 0;
   result = Dart_Invoke(test_script, Dart_NewString("m3"), 0, NULL);
   EXPECT_VALID(result);
   EXPECT(Dart_IsInteger(result));
   EXPECT_VALID(Dart_IntegerToInt64(result, &value));
   EXPECT_EQ(21, value);
+
+  value = 0;
+  result = Dart_Invoke(test_script, Dart_NewString("m4"), 0, NULL);
+  EXPECT_VALID(result);
+  EXPECT(Dart_IsInteger(result));
+  EXPECT_VALID(Dart_IntegerToInt64(result, &value));
+  EXPECT_EQ(25, value);
 }
 
 
 static void MyNativeFunction1(Dart_NativeArguments args) {
   Dart_EnterScope();
   Dart_SetReturnValue(args, Dart_NewInteger(654321));
   Dart_ExitScope();
 }
 
 
@@ skipping 996 matching lines @@
   EXPECT(Dart_IsString(str));
   len = -1;
   EXPECT_VALID(Dart_StringLength(str, &len));
   EXPECT_EQ(0, len);
 }
 
 
 #endif  // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64).
 
 }  // namespace dart