Struct JsEnv 

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

Implementations

impl JsEnv

pub fn new(env: napi_env) -> Self

pub fn inner(&self) -> napi_env

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

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

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

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

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

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

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

pub fn create_object(&self) -> Result<napi_value, NjError>

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

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

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

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

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

check if napi value is array

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

check if napi value is array buffer

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

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

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

pub fn get_global(&self) -> Result<napi_value, NjError>

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

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

get callback information

pub fn define_class( &self, name: &str, constructor: napi_callback_raw, properties: PropertiesBuilder, ) -> Result<napi_value, NjError>

define classes

pub fn create_reference( &self, cons: napi_value, count: u32, ) -> Result<napi_ref, NjError>

pub fn delete_reference(&self, ref_: napi_ref) -> Result<(), NjError>

pub fn get_new_target( &self, info: napi_callback_info, ) -> Result<napi_value, NjError>

pub fn wrap( &self, js_object: napi_value, rust_obj: *mut u8, finalize: napi_finalize_raw, ) -> Result<napi_ref, NjError>

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

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

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

pub fn get_reference_value( &self, obj_ref: napi_ref, ) -> Result<napi_value, NjError>

pub fn create_promise(&self) -> Result<(napi_value, napi_deferred), NjError>

create promise and deferred

pub fn resolve_deferred( &self, deferred: napi_deferred, resolution: napi_value, ) -> Result<(), NjError>

pub fn reject_deferred( &self, deferred: napi_deferred, rejection: napi_value, ) -> Result<(), NjError>

pub fn create_thread_safe_function( &self, name: &str, js_func: Option<napi_value>, call_js_cb: napi_threadsafe_function_call_js, ) -> Result<ThreadSafeFunction, NjError>

pub fn is_exception_pending(&self) -> bool

pub fn throw(&self, value: napi_value)

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

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

pub fn value_type( &self, napi_value: napi_value, ) -> Result<napi_valuetype, NjError>

get value type

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

is value undefined or null

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

get string representation of value type

pub fn assert_type( &self, napi_value: napi_value, should_be_type: napi_valuetype, ) -> Result<(), NjError>

assert that napi value is certain type, otherwise raise exception

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

where T: JSValue<'a>,

convert napi value to rust value

pub fn get_undefined(&self) -> Result<napi_value, NjError>

pub fn get_null(&self) -> Result<napi_value, NjError>

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

get buffer info

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

Detach ArrayBuffer

pub fn is_detached_arraybuffer( &self, napi_value: 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(arg: *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

Formats the value using the given formatter.

impl ExtractArgFromJs<'_> for JsEnv

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

convert js callback argument at index

fn label() -> &'static str

impl ExtractFromJs<'_> for JsEnv

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

extract from js callback

fn label() -> &'static str

impl From<*mut napi_env__> for JsEnv

fn from(env: napi_env) -> Self

Converts to this type from the input type.

impl Send for JsEnv

impl Sync for JsEnv