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https://gitee.com/openharmony/napi_generator
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增加napi async callback,promise snippets
Signed-off-by: chen-zhongwei050 <chenzhongwei050@chinasoftinc.com>
This commit is contained in:
chen-zhongwei050
parent
a051ab8659
commit
519e5b1f8c
@ -111,6 +111,10 @@
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{
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"language": "cpp",
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"path": "./snippets/napi_class_snippets.json"
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},
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{
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"language": "cpp",
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"path": "./snippets/napi_async_snippets.json"
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}
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]
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},
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127
src/vscode_plugin/snippets/napi_async_snippets.json
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127
src/vscode_plugin/snippets/napi_async_snippets.json
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@ -0,0 +1,127 @@
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{
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"Napi Async Callback": {
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"prefix": "napiasynccallback",
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"body": [
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"struct CallbackData {",
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" napi_async_work asyncWork = nullptr;",
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" napi_ref callbackRef = nullptr;",
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" double args[2] = {0};",
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" double result = 0;",
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"};",
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"static void CompleteCBCallback(napi_env env, napi_status status, void *data)",
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"{",
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" CallbackData *callbackData = reinterpret_cast<CallbackData *>(data);",
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" napi_value callbackArg[1] = {nullptr};",
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" // Todo: you can use \"napidoubleout\" command that return double value to js.",
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" napi_value callback = nullptr;",
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" // Retrieve the ArkTs value associated with a reference created by napi_create_reference.",
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" napi_get_reference_value(env, callbackData->callbackRef, &callback);",
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" // Execute the callback.",
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" napi_value result;",
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" napi_value undefined;",
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" napi_get_undefined(env, &undefined);",
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" // Invoke a ArkTs function with the provided arguments in a given environment.",
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" napi_call_function(env, undefined, callback, 1, callbackArg, &result);",
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" // Delete the napi_ref object and asynchronous work object.",
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" napi_delete_reference(env, callbackData->callbackRef);",
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" // Clean up an asynchronous work request and its associated resources.",
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" napi_delete_async_work(env, callbackData->asyncWork);",
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" delete callbackData;",
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"}",
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"static void ExecuteCBCallback(napi_env env, void *data)",
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"{",
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" CallbackData *callbackData = reinterpret_cast<CallbackData *>(data);",
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" // Todo: business code. eg:callbackData->result = callbackData->args[0] + callbackData->args[1];",
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"}",
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"napi_value AsyncWorkCallback(napi_env env, napi_callback_info info)",
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"{",
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" // Todo: you can use \"napiobjectin\" command that get object param from js.",
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" auto asyncContext = new CallbackData();",
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" // Todo: you can use \"napidoublein\" command that get double param from js.",
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" // Convert the callback to napi_ref to extend its lifecycle to prevent it from being garbage-collected.",
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" napi_create_reference(env, args[2], 1, &asyncContext->callbackRef);",
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" napi_value resourceName = nullptr;",
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" // Create a js string which is used as the name for the asynchronous work object being created.",
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" napi_create_string_utf8(env, \"asyncWorkCallback\", NAPI_AUTO_LENGTH, &resourceName);",
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" // Create an asynchronous work object.",
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" napi_create_async_work(env, nullptr, resourceName, ExecuteCBCallback, CompleteCBCallback, asyncContext, &asyncContext->asyncWork);",
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" // Add the asynchronous work object to a queue.",
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" napi_queue_async_work(env, asyncContext->asyncWork);",
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" return nullptr;",
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"}",
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"EXTERN_C_START",
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"// Initialize the module.",
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"static napi_value Init(napi_env env, napi_value exports)",
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"{",
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" // Define properties and methods for a N-API object.",
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" napi_property_descriptor desc[] = {",
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" { \"asyncWorkCallback\", nullptr, AsyncWorkCallback, nullptr, nullptr, nullptr, napi_default, nullptr }",
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" };",
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" // Add an array of properties to a ArkTs object.",
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" napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);",
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" return exports;",
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"}",
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"EXTERN_C_END"
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]
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},
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"Napi Async Promise": {
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"prefix": "napiasyncpromise",
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"body": [
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"struct CallbackData {",
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" napi_async_work asyncWork = nullptr;",
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" napi_deferred deferred = nullptr;",
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" napi_ref callback = nullptr;",
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" double args[2] = {0};",
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" double result = 0;",
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"};",
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"static void ExecuteCBPromise(napi_env env, void *data)",
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"{",
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" CallbackData *callbackData = reinterpret_cast<CallbackData *>(data);",
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" // Todo: business code. eg:callbackData->result = callbackData->args[0] + callbackData->args[1];",
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"}",
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"static void CompleteCBPromise(napi_env env, napi_status status, void *data)",
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"{",
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" CallbackData *callbackData = reinterpret_cast<CallbackData *>(data);",
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" // Todo: you can use \"napidoubleout\" command that return double value to js.",
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" // Fulfill a ArkTs Promise with a given value.",
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" napi_resolve_deferred(env, callbackData->deferred, result);",
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" // Clean up an asynchronous work request and its associated resources.",
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" napi_delete_async_work(env, callbackData->asyncWork);",
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" delete callbackData;",
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"}",
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"static napi_value AsyncWorkPromise(napi_env env, napi_callback_info info)",
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"{",
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" // Todo: you can use \"napiobjectin\" command that get object param from js.",
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" napi_value promise = nullptr;",
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" napi_deferred deferred = nullptr;",
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" // Initialize a new ArkTs Promise and retrieves its deferred completion handle.",
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" napi_create_promise(env, &deferred, &promise);",
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" auto callbackData = new CallbackData();",
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" callbackData->deferred = deferred;",
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" // Todo: you can use \"napidoublein\" command that get double param from js.",
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" napi_value resourceName = nullptr;",
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" // Create a js string which is used as the name for the asynchronous work object being created.",
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" napi_create_string_utf8(env, \"asyncWorkPromise\", NAPI_AUTO_LENGTH, &resourceName);",
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" // Create an asynchronous work object.",
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" napi_create_async_work(env, nullptr, resourceName, ExecuteCBPromise, CompleteCBPromise, callbackData, &callbackData->asyncWork);",
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" // Add the asynchronous work object to a queue.",
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" napi_queue_async_work(env, callbackData->asyncWork);",
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" return promise;",
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"}",
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"EXTERN_C_START",
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"// Initialize the module.",
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"static napi_value Init(napi_env env, napi_value exports)",
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"{",
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" // Define promise method for a N-API object.",
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" napi_property_descriptor desc[] = {",
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" { \"asyncWorkPromise\", nullptr, AsyncWorkPromise, nullptr, nullptr, nullptr, napi_default, nullptr }",
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" };",
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" // Add an array of properties to a ArkTs object.",
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" napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);",
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" return exports;",
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"}",
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"EXTERN_C_END"
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]
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}
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}
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