Struct JsEnv 

pub struct JsEnv(/* private fields */);

Implementations

impl JsEnv

pub fn new(env: *mut napi_env__) -> JsEnv

pub fn inner(&self) -> *mut napi_env__

pub fn create_string_utf8( &self, r_string: &str, ) -> Result<*mut napi_value__, NjError>

pub fn create_string_utf8_from_bytes( &self, r_string: &[u8], ) -> Result<*mut napi_value__, NjError>

pub fn create_double(&self, value: f64) -> Result<*mut napi_value__, NjError>

pub fn create_int64(&self, value: i64) -> Result<*mut napi_value__, NjError>

pub fn create_int32(&self, value: i32) -> Result<*mut napi_value__, NjError>

pub fn create_uint32(&self, value: u32) -> Result<*mut napi_value__, NjError>

pub fn create_bigint_uint64( &self, value: u64, ) -> Result<*mut napi_value__, NjError>

pub fn create_object(&self) -> Result<*mut napi_value__, NjError>

pub fn create_boolean(&self, value: bool) -> Result<*mut napi_value__, NjError>

pub fn create_array_with_len( &self, len: usize, ) -> Result<*mut napi_value__, NjError>

pub fn set_element( &self, object: *mut napi_value__, element: *mut napi_value__, index: usize, ) -> Result<(), NjError>

pub fn get_element( &self, array: *mut napi_value__, index: u32, ) -> Result<*mut napi_value__, NjError>

pub fn is_array(&self, array: *mut napi_value__) -> Result<bool, NjError>

check if napi value is array

pub fn is_array_buffer(&self, array: *mut napi_value__) -> Result<bool, NjError>

check if napi value is array buffer

pub fn is_buffer(&self, n_value: *mut napi_value__) -> Result<bool, NjError>

pub fn is_date(&self, n_value: *mut napi_value__) -> Result<bool, NjError>

pub fn is_error(&self, n_value: *mut napi_value__) -> Result<bool, NjError>

pub fn get_global(&self) -> Result<*mut napi_value__, NjError>

pub fn call_function( &self, recv: *mut napi_value__, func: *mut napi_value__, argv: Vec<*mut napi_value__>, ) -> Result<*mut napi_value__, NjError>

pub fn get_cb_info( &self, info: *mut napi_callback_info__, max_count: usize, ) -> Result<JsCallback, NjError>

get callback information

pub fn define_class( &self, name: &str, constructor: unsafe extern "C" fn(*mut napi_env__, *mut napi_callback_info__) -> *mut napi_value__, properties: PropertiesBuilder, ) -> Result<*mut napi_value__, NjError>

define classes

pub fn create_reference( &self, cons: *mut napi_value__, count: u32, ) -> Result<*mut napi_ref__, NjError>

pub fn delete_reference(&self, ref_: *mut napi_ref__) -> Result<(), NjError>

pub fn get_new_target( &self, info: *mut napi_callback_info__, ) -> Result<*mut napi_value__, NjError>

pub fn wrap( &self, js_object: *mut napi_value__, rust_obj: *mut u8, finalize: unsafe extern "C" fn(*mut napi_env__, *mut c_void, *mut c_void), ) -> Result<*mut napi_ref__, NjError>

pub fn unwrap<T>( &self, js_this: *mut napi_value__, ) -> Result<&'static T, NjError>

pub fn unwrap_mut<T>( &self, js_this: *mut napi_value__, ) -> Result<&'static mut T, NjError>

pub fn new_instance( &self, constructor: *mut napi_value__, args: Vec<*mut napi_value__>, ) -> Result<*mut napi_value__, NjError>

pub fn get_reference_value( &self, obj_ref: *mut napi_ref__, ) -> Result<*mut napi_value__, NjError>

pub fn create_promise( &self, ) -> Result<(*mut napi_value__, *mut napi_deferred__), NjError>

create promise and deferred

pub fn resolve_deferred( &self, deferred: *mut napi_deferred__, resolution: *mut napi_value__, ) -> Result<(), NjError>

pub fn reject_deferred( &self, deferred: *mut napi_deferred__, rejection: *mut napi_value__, ) -> Result<(), NjError>

pub fn create_thread_safe_function( &self, name: &str, js_func: Option<*mut napi_value__>, call_js_cb: Option<unsafe extern "C" fn(*mut napi_env__, *mut napi_value__, *mut c_void, *mut c_void)>, ) -> Result<ThreadSafeFunction, NjError>

pub fn is_exception_pending(&self) -> bool

pub fn throw(&self, value: *mut napi_value__)

pub fn throw_type_error(&self, message: &str)

pub fn create_error(&self, message: &str) -> Result<*mut napi_value__, NjError>

pub fn value_type(&self, napi_value: *mut napi_value__) -> Result<u32, NjError>

get value type

pub fn is_undefined_or_null( &self, napi_value: *mut napi_value__, ) -> Result<bool, NjError>

is value undefined or null

pub fn value_type_string( &self, napi_value: *mut napi_value__, ) -> Result<&'static str, NjError>

get string representation of value type

pub fn assert_type( &self, napi_value: *mut napi_value__, should_be_type: u32, ) -> Result<(), NjError>

assert that napi value is certain type, otherwise raise exception

pub fn convert_to_rust<'a, T>( &'a self, napi_value: *mut napi_value__, ) -> Result<T, NjError>

where T: JSValue<'a>,

convert napi value to rust value

pub fn get_undefined(&self) -> Result<*mut napi_value__, NjError>

pub fn get_null(&self) -> Result<*mut napi_value__, NjError>

pub fn get_buffer_info( &self, napi_value: *mut napi_value__, ) -> Result<&[u8], NjError>

get buffer info

pub fn detach_arraybuffer( &self, napi_value: *mut napi_value__, ) -> Result<(), NjError>

Detach ArrayBuffer

pub fn is_detached_arraybuffer( &self, napi_value: *mut napi_value__, ) -> Result<bool, NjError>

Is this ArrayBuffer Detached?

pub unsafe fn add_env_clean_up_hook( &self, init_func: Option<unsafe extern "C" fn(*mut c_void)>, arg: *mut c_void, ) -> Result<(), NjError>

Trait Implementations

impl Clone for JsEnv

fn clone(&self) -> JsEnv

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for JsEnv

impl Debug for JsEnv

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl ExtractArgFromJs<'_> for JsEnv

fn convert_arg_at(js_cb: &JsCallback, _index: usize) -> Result<JsEnv, NjError>

convert js callback argument at index

fn label() -> &'static str

impl ExtractFromJs<'_> for JsEnv

fn extract(js_cb: &mut JsCallback) -> Result<JsEnv, NjError>

extract from js callback

fn label() -> &'static str

impl From<*mut napi_env__> for JsEnv

fn from(env: *mut napi_env__) -> JsEnv

Converts to this type from the input type.

impl Send for JsEnv

impl Sync for JsEnv