Implement @patch annotation for patch class members

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 "bin/builtin.h"
 #include "vm/compiler.h"
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 #include "include/dart_tools_api.h"
@@ skipping 6824 matching lines @@
   "  external int method();\n"
   "}\n"
   "\n"
   "external int unpatched();\n"
   "external int topLevel(var value);\n"
   "external int topLevel2(var value);\n"
   "external int get topLevelGetter;\n"
   "external void set topLevelSetter(int value);\n";
 
   const char* kPatchChars =
-  "patch class A {\n"
+  "@patch class A {\n"
   "  var _g;\n"
   "  A() : fvalue = 13;\n"
   "  get _field => _g;\n"
-  "  /*patch*/ void method(var value) {\n"
+  "  @patch void method(var value) {\n"
   "    int closeYourEyes(var eggs) { return eggs * -1; }\n"
   "    value = callFunc(closeYourEyes, value);\n"
   "    _g = value * 5;\n"
   "  }\n"
   "}\n"
-  "patch class B {\n"
+  "@patch class B {\n"
   "  B._internal(x) : val = x;\n"
-  "  /*patch*/ factory B.named(x) { return new B._internal(x); }\n"
-  "  /*patch*/ factory B(v) native \"const_B_factory\";\n"
+  "  @patch factory B.named(x) { return new B._internal(x); }\n"
+  "  @patch factory B(v) native \"const_B_factory\";\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"
+  "@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"
   ;  // NOLINT
 
   const char* kPatchClassOnlyChars =
-  "patch class C {\n"
-  "  /*patch*/ int method() {\n"
+  "@patch class C {\n"
+  "  @patch int method() {\n"
   "    return 42;\n"
   "  }\n"
   "}\n"
   ;  // NOLINT
 
   const char* kPatchNoClassChars =
-  "patch topLevel2(x) => x * 2;\n";
+  "@patch topLevel2(x) => x * 2;\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"
@@ skipping 3164 matching lines @@
       "class A {\n"
       "  int foo() { return 10; }\n"
       "  external int zoo();\n"
       "  external static int moo();\n"
       "}\n"
       "main() { new A().foo(); }\n"
       "foozoo() { new A().zoo(); }\n"
       "foomoo() { A.moo(); }\n";
 
   const char* kScriptChars2 =
-      "patch class A {\n"
-      "  /* patch */ int zoo() { return 1; }\n"
-      "  /* patch */ static int moo() { return 1; }\n"
+      "@patch class A {\n"
+      "  @patch int zoo() { return 1; }\n"
+      "  @patch static int moo() { return 1; }\n"
       "}\n";
 
   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars1, NULL);
   Dart_Handle result = Dart_Invoke(lib,
                                    NewString("main"),
                                    0,
                                    NULL);
   EXPECT_VALID(result);
   Dart_Handle url = NewString("test-lib-patch");
   Dart_Handle source = NewString(kScriptChars2);
@@ skipping 17 matching lines @@
 TEST_CASE(Dart_LoadLibraryPatch_Error1) {
   const char* kScriptChars1 =
       "class A {\n"
       "  int foo() { return 10; }\n"
       "  external int zoo();\n"
       "}\n"
       "main() { new A().foo(); }\n"
       "foozoo() { new A().zoo(); }\n";
 
   const char* kScriptChars2 =
-      "patch class A {\n"
-      "  /* patch */ int zoo() { return 1; }\n"
-      "  /* patch */ int fld1;\n"
+      "@patch class A {\n"
+      "  @patch int zoo() { return 1; }\n"
+      "  @patch int fld1;\n"
       "}\n";
 
   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars1, NULL);
   Dart_Handle result = Dart_Invoke(lib,
                                    NewString("main"),
                                    0,
                                    NULL);
   EXPECT_VALID(result);
   Dart_Handle url = NewString("test-lib-patch");
   Dart_Handle source = NewString(kScriptChars2);
@@ skipping 14 matching lines @@
 TEST_CASE(Dart_LoadLibraryPatch_Error2) {
   const char* kScriptChars1 =
       "class A {\n"
       "  int foo() { return 10; }\n"
       "  int zoo() { return 20; }\n"
       "}\n"
       "main() { new A().foo(); }\n"
       "foozoo() { new A().zoo(); }\n";
 
   const char* kScriptChars2 =
-      "patch class A {\n"
-      "  /* patch */ int zoo() { return 1; }\n"
+      "@patch class A {\n"
+      "  @patch int zoo() { return 1; }\n"
       "}\n";
 
   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars1, NULL);
   Dart_Handle result = Dart_Invoke(lib,
                                    NewString("main"),
                                    0,
                                    NULL);
   EXPECT_VALID(result);
   Dart_Handle url = NewString("test-lib-patch");
   Dart_Handle source = NewString(kScriptChars2);
@@ skipping 15 matching lines @@
 TEST_CASE(Dart_LoadLibraryPatch_Error3) {
   const char* kScriptChars1 =
       "class A {\n"
       "  int foo() { return 10; }\n"
       "  external int zoo();\n"
       "}\n"
       "main() { new A().foo(); }\n"
       "foozoo() { new A().zoo(); }\n";
 
   const char* kScriptChars2 =
-      "patch class A {\n"
-      "  /* patch */ int zoo() { return 1; }\n"
+      "@patch class A {\n"
+      "  @patch int zoo() { return 1; }\n"
       "}\n";
 
   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars1, NULL);
   Dart_Handle result = Dart_Invoke(lib,
                                    NewString("main"),
                                    0,
                                    NULL);
   // We invoke the foozoo method to ensure that code for 'zoo' is generated
   // which throws NoSuchMethod.
   result = Dart_Invoke(lib,
@@ skipping 12 matching lines @@
   result = Dart_Invoke(lib,
                        NewString("foozoo"),
                        0,
                        NULL);
   EXPECT(Dart_IsError(result));
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart