napi_create_promise

ohos_sys::napi

Function napi_create_promise 

Source 
pub unsafe extern "C" fn napi_create_promise(
    env: napi_env,
    deferred: *mut napi_deferred,
    promise: *mut napi_value,
) -> napi_status
Available on crate feature napi only.
Expand description

Creates a deferred object and an ArkTS promise.

§Arguments

  • env - Current running virtual machine context.

  • deferred - The created deferred object which will be passed to ‘napi_resolve_deferred()’ or ‘napi_reject_deferred()’ to resolve or reject the promise.

  • promise - The ArkTS promise which is associated with the deferred object.

§Returns

  • Returns the function execution status. [napi_ok] If the function executed successfully.

[napi_invalid_arg] If env, deferred or resolution is nullptr.

[napi_pending_exception] If an ArkTS exception existed when the function was called.

[napi_generic_failure] If create promise failed.

Available since API-level: 10