!477 vscode插件增加snippets，对napi class 代码功能提供代码片段

Merge pull request !477 from 苟晶晶/master

src/vscode_plugin/package.json

@@ -10,7 +10,8 @@
         "vscode": "^1.34.0"
     },
     "categories": [
-        "Other"
+        "Other",
+        "Snippets"
     ],
     "activationEvents": [
         "onCommand:extension.h2dts",
@@ -106,7 +107,12 @@
                     "group": "2_workspace"
                 }
             ]
-        }
+        "snippets": [
+          {
+            "language": "cpp",
+            "path": "./snippets/napi_class_snippets.json"
+          }
+        ]
     },
     "scripts": {
         "vscode:prepublish": "npm run compile",

src/vscode_plugin/snippets/napi_class_snippets.json

@@ -0,0 +1,83 @@
+{
+  "Napi Class": {
+    "prefix": "napiclass",
+    "body": [
+    "class HelloWorld {",
+    "  public:",
+    "   static napi_value Init(napi_env env, napi_value exports);",
+    "   static void Destructor(napi_env env, void* nativeObject, void* finalize_hint);",
+    "  private:",
+    "   explicit HelloWorld();",
+    "   ~HelloWorld();",
+    "   static napi_value New(napi_env env, napi_callback_info info);",
+    "   static napi_value GetValue(napi_env env, napi_callback_info info);",
+    "   static napi_value SetValue(napi_env env, napi_callback_info info);",
+    "   static napi_value Hello(napi_env env, napi_callback_info info);",
+    "   std::string value_;",
+    "   napi_env env_;",
+    "   napi_ref wrapper_;",
+    "};",
+    "HelloWorld::HelloWorld(): value_(\"\"), env_(nullptr), wrapper_(nullptr) {}",
+    "HelloWorld::~HelloWorld() { napi_delete_reference(env_, wrapper_); }",
+    "void HelloWorld::Destructor(napi_env env, void* nativeObject, [[maybe_unused]] void* finalize_hint)",
+    "{",
+    "  reinterpret_cast<HelloWorld*>(nativeObject)->~HelloWorld();",
+    "}",
+    "napi_value HelloWorld::New(napi_env env, napi_callback_info info)",
+    "{",
+    "  napi_value newTarget;",
+    "  // Check if the constructor was invoked with new.",
+    "  napi_get_new_target(env, info, &newTarget);",
+    "  if (newTarget != nullptr) {",
+    "    // Invoked as the constructor `new HelloWorld()`.",
+    "    napi_value jsThis;",
+    "    // Retrieve the callback's context and arguments.",
+    "    napi_get_cb_info(env, info, nullptr, nullptr, &jsThis, nullptr);",
+    "    HelloWorld* obj = new HelloWorld();",
+    "    obj->env_ = env;",
+    "    // Wrap the C++ object obj in the ArkTS object jsThis.",
+    "    napi_wrap(env, jsThis, reinterpret_cast<void*>(obj), HelloWorld::Destructor, nullptr, &obj->wrapper_);",
+    "    return jsThis;",
+    "  } else {",
+    "    OH_LOG_ERROR(LOG_APP, \"HelloWorld must be invoked as a constructor with `new`\");",
+    "    return nullptr;",
+    "  }",
+    "}",
+    "napi_value HelloWorld::GetValue(napi_env env, napi_callback_info info)",
+    "{",
+    "  // Todo: you can use \"napiobjectin\" command that get object param from js.",
+    "  HelloWorld* obj;",
+    "  // Retrieve obj (the C++ object) previously wrapped in jsThis (the ArkTS object), and perform subsequent operations.",
+    "  napi_unwrap(env, jsThis, reinterpret_cast<void**>(&obj));",
+    "  // Todo: you can use \"napistringutf8out\" command that return string utf8 value to js.",
+    "}",
+    "napi_value HelloWorld::SetValue(napi_env env, napi_callback_info info)",
+    "{",
+    "  // Todo: you can use \"napiobjectin\" command that get object param from js.",
+    "  HelloWorld* obj;",
+    "  napi_unwrap(env, jsThis, reinterpret_cast<void**>(&obj));",
+    "  // Todo: you can use \"napistringutf8in\" command that get string utf8 param from js.",
+    "  return nullptr;",
+    "}",
+    "napi_value HelloWorld::Hello(napi_env env, napi_callback_info info)",
+    "{",
+    "  OH_LOG_INFO(LOG_APP, \"HelloWorld::Hello World!\");",
+    "  return nullptr;",
+    "}",
+    "napi_value HelloWorld::Init(napi_env env, napi_value exports)",
+    "{",
+    "  // Define properties and methods for a N-API object",
+    "  napi_property_descriptor properties[] = {",
+    "      { \"value\", 0, 0, GetValue, SetValue, 0, napi_default, 0 },",
+    "      { \"hello\", nullptr, Hello, nullptr, nullptr, nullptr, napi_default, nullptr }",
+    "  };",
+    "  napi_value cons;",
+    "  // Define a js class",
+    "  napi_define_class(env, \"HelloWorld\", NAPI_AUTO_LENGTH, New, nullptr, 2, properties, &cons);",
+    "  // Set the 'HelloWorld' class on the exports object.",
+    "  napi_set_named_property(env, exports, \"HelloWorld\", cons);",
+    "  return exports;",
+    "}"
+    ]
+  }
+}