use std::convert::TryFrom;
use std::ffi::CString;
use std::ptr;
use crate::{check_status, sys, Callback, Error, Result, Status};
#[cfg(feature = "serde-json")]
mod de;
#[cfg(feature = "serde-json")]
mod ser;
mod arraybuffer;
#[cfg(feature = "napi6")]
mod bigint;
mod boolean;
mod buffer;
#[cfg(feature = "napi5")]
mod date;
mod either;
mod error;
mod escapable_handle_scope;
mod function;
mod global;
mod number;
mod object;
mod object_property;
mod string;
mod tagged_object;
mod undefined;
mod value;
mod value_ref;
mod value_type;
pub use arraybuffer::*;
#[cfg(feature = "napi6")]
pub use bigint::JsBigint;
pub use boolean::JsBoolean;
pub use buffer::*;
#[cfg(feature = "napi5")]
pub use date::*;
#[cfg(feature = "serde-json")]
pub(crate) use de::De;
pub use either::Either;
pub use error::*;
pub use escapable_handle_scope::EscapableHandleScope;
pub use function::JsFunction;
pub use global::*;
pub use number::JsNumber;
pub use object::*;
pub use object_property::*;
#[cfg(feature = "serde-json")]
pub(crate) use ser::Ser;
pub use string::*;
pub(crate) use tagged_object::TaggedObject;
pub use undefined::JsUndefined;
pub(crate) use value::Value;
pub use value_ref::*;
pub use value_type::ValueType;
pub struct JsUnknown(pub(crate) Value);
#[derive(Clone, Copy)]
pub struct JsNull(pub(crate) Value);
#[derive(Clone, Copy)]
pub struct JsSymbol(pub(crate) Value);
pub struct JsExternal(pub(crate) Value);
#[doc(hidden)]
#[macro_export(local_inner_macros)]
macro_rules! type_of {
($env:expr, $value:expr) => {{
use std::convert::TryFrom;
use $crate::sys;
let mut value_type = 0;
let status = sys::napi_typeof($env, $value, &mut value_type);
check_status!(status)
.and_then(|_| ValueType::try_from(value_type).or_else(|_| Ok(ValueType::Unknown)))
}};
}
macro_rules! impl_napi_value_trait {
($js_value:ident, $value_type:ident) => {
impl NapiValue for $js_value {
unsafe fn from_raw(env: sys::napi_env, value: sys::napi_value) -> Result<$js_value> {
let value_type = type_of!(env, value)?;
if value_type != $value_type {
Err(Error::new(
Status::InvalidArg,
format!("expect {:?}, got: {:?}", $value_type, value_type),
))
} else {
Ok($js_value(Value {
env,
value,
value_type: $value_type,
}))
}
}
unsafe fn from_raw_unchecked(env: sys::napi_env, value: sys::napi_value) -> $js_value {
$js_value(Value {
env,
value,
value_type: $value_type,
})
}
}
impl NapiRaw for $js_value {
unsafe fn raw(&self) -> sys::napi_value {
self.0.value
}
}
impl<'env> NapiRaw for &'env $js_value {
unsafe fn raw(&self) -> sys::napi_value {
self.0.value
}
}
impl TryFrom<JsUnknown> for $js_value {
type Error = Error;
fn try_from(value: JsUnknown) -> Result<$js_value> {
unsafe { $js_value::from_raw(value.0.env, value.0.value) }
}
}
};
}
macro_rules! impl_js_value_methods {
($js_value:ident) => {
impl $js_value {
#[inline]
pub fn into_unknown(self) -> JsUnknown {
unsafe { JsUnknown::from_raw_unchecked(self.0.env, self.0.value) }
}
#[inline]
pub fn coerce_to_number(self) -> Result<JsNumber> {
let mut new_raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_coerce_to_number(self.0.env, self.0.value, &mut new_raw_value)
})?;
Ok(JsNumber(Value {
env: self.0.env,
value: new_raw_value,
value_type: ValueType::Number,
}))
}
#[inline]
pub fn coerce_to_string(self) -> Result<JsString> {
let mut new_raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_coerce_to_string(self.0.env, self.0.value, &mut new_raw_value)
})?;
Ok(JsString(Value {
env: self.0.env,
value: new_raw_value,
value_type: ValueType::String,
}))
}
#[inline]
pub fn coerce_to_object(self) -> Result<JsObject> {
let mut new_raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_coerce_to_object(self.0.env, self.0.value, &mut new_raw_value)
})?;
Ok(JsObject(Value {
env: self.0.env,
value: new_raw_value,
value_type: ValueType::Object,
}))
}
#[cfg(feature = "napi5")]
#[inline]
pub fn is_date(&self) -> Result<bool> {
let mut is_date = true;
check_status!(unsafe { sys::napi_is_date(self.0.env, self.0.value, &mut is_date) })?;
Ok(is_date)
}
#[inline]
pub fn is_promise(&self) -> Result<bool> {
let mut is_promise = true;
check_status!(unsafe { sys::napi_is_promise(self.0.env, self.0.value, &mut is_promise) })?;
Ok(is_promise)
}
#[inline]
pub fn is_error(&self) -> Result<bool> {
let mut result = false;
check_status!(unsafe { sys::napi_is_error(self.0.env, self.0.value, &mut result) })?;
Ok(result)
}
#[inline]
pub fn is_typedarray(&self) -> Result<bool> {
let mut result = false;
check_status!(unsafe { sys::napi_is_typedarray(self.0.env, self.0.value, &mut result) })?;
Ok(result)
}
#[inline]
pub fn is_dataview(&self) -> Result<bool> {
let mut result = false;
check_status!(unsafe { sys::napi_is_dataview(self.0.env, self.0.value, &mut result) })?;
Ok(result)
}
#[inline]
pub fn is_array(&self) -> Result<bool> {
let mut is_array = false;
check_status!(unsafe { sys::napi_is_array(self.0.env, self.0.value, &mut is_array) })?;
Ok(is_array)
}
#[inline]
pub fn is_buffer(&self) -> Result<bool> {
let mut is_buffer = false;
check_status!(unsafe { sys::napi_is_buffer(self.0.env, self.0.value, &mut is_buffer) })?;
Ok(is_buffer)
}
#[inline]
pub fn instanceof<Constructor>(&self, constructor: Constructor) -> Result<bool>
where
Constructor: NapiRaw,
{
let mut result = false;
check_status!(unsafe {
sys::napi_instanceof(self.0.env, self.0.value, constructor.raw(), &mut result)
})?;
Ok(result)
}
}
};
}
macro_rules! impl_object_methods {
($js_value:ident) => {
impl $js_value {
#[inline]
pub fn set_property<V>(&mut self, key: JsString, value: V) -> Result<()>
where
V: NapiRaw,
{
check_status!(unsafe {
sys::napi_set_property(self.0.env, self.0.value, key.0.value, value.raw())
})
}
#[inline]
pub fn get_property<K, T>(&self, key: K) -> Result<T>
where
K: NapiRaw,
T: NapiValue,
{
let mut raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_property(self.0.env, self.0.value, key.raw(), &mut raw_value)
})?;
unsafe { T::from_raw(self.0.env, raw_value) }
}
#[inline]
pub fn get_property_unchecked<K, T>(&self, key: K) -> Result<T>
where
K: NapiRaw,
T: NapiValue,
{
let mut raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_property(self.0.env, self.0.value, key.raw(), &mut raw_value)
})?;
Ok(unsafe { T::from_raw_unchecked(self.0.env, raw_value) })
}
#[inline]
pub fn set_named_property<T>(&mut self, name: &str, value: T) -> Result<()>
where
T: NapiRaw,
{
let key = CString::new(name)?;
check_status!(unsafe {
sys::napi_set_named_property(self.0.env, self.0.value, key.as_ptr(), value.raw())
})
}
#[inline]
pub fn create_named_method(&mut self, name: &str, function: Callback) -> Result<()> {
let mut js_function = ptr::null_mut();
let len = name.len();
let name = CString::new(name.as_bytes())?;
check_status!(unsafe {
sys::napi_create_function(
self.0.env,
name.as_ptr(),
len,
Some(function),
ptr::null_mut(),
&mut js_function,
)
})?;
check_status!(unsafe {
sys::napi_set_named_property(self.0.env, self.0.value, name.as_ptr(), js_function)
})
}
#[inline]
pub fn get_named_property<T>(&self, name: &str) -> Result<T>
where
T: NapiValue,
{
let key = CString::new(name)?;
let mut raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_named_property(self.0.env, self.0.value, key.as_ptr(), &mut raw_value)
})?;
unsafe { T::from_raw(self.0.env, raw_value) }
}
#[inline]
pub fn get_named_property_unchecked<T>(&self, name: &str) -> Result<T>
where
T: NapiValue,
{
let key = CString::new(name)?;
let mut raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_named_property(self.0.env, self.0.value, key.as_ptr(), &mut raw_value)
})?;
Ok(unsafe { T::from_raw_unchecked(self.0.env, raw_value) })
}
#[inline]
pub fn has_named_property(&self, name: &str) -> Result<bool> {
let mut result = false;
let key = CString::new(name)?;
check_status!(unsafe {
sys::napi_has_named_property(self.0.env, self.0.value, key.as_ptr(), &mut result)
})?;
Ok(result)
}
#[inline]
pub fn delete_property<S>(&mut self, name: S) -> Result<bool>
where
S: NapiRaw,
{
let mut result = false;
check_status!(unsafe {
sys::napi_delete_property(self.0.env, self.0.value, name.raw(), &mut result)
})?;
Ok(result)
}
#[inline]
pub fn delete_named_property(&mut self, name: &str) -> Result<bool> {
let mut result = false;
let key_str = CString::new(name)?;
let mut js_key = ptr::null_mut();
check_status!(unsafe {
sys::napi_create_string_utf8(self.0.env, key_str.as_ptr(), name.len(), &mut js_key)
})?;
check_status!(unsafe {
sys::napi_delete_property(self.0.env, self.0.value, js_key, &mut result)
})?;
Ok(result)
}
#[inline]
pub fn has_own_property(&self, key: &str) -> Result<bool> {
let mut result = false;
let string = CString::new(key)?;
let mut js_key = ptr::null_mut();
check_status!(unsafe {
sys::napi_create_string_utf8(self.0.env, string.as_ptr(), key.len(), &mut js_key)
})?;
check_status!(unsafe {
sys::napi_has_own_property(self.0.env, self.0.value, js_key, &mut result)
})?;
Ok(result)
}
#[inline]
pub fn has_own_property_js<K>(&self, key: K) -> Result<bool>
where
K: NapiRaw,
{
let mut result = false;
check_status!(unsafe {
sys::napi_has_own_property(self.0.env, self.0.value, key.raw(), &mut result)
})?;
Ok(result)
}
#[inline]
pub fn has_property(&self, name: &str) -> Result<bool> {
let string = CString::new(name)?;
let mut js_key = ptr::null_mut();
let mut result = false;
check_status!(unsafe {
sys::napi_create_string_utf8(self.0.env, string.as_ptr(), name.len(), &mut js_key)
})?;
check_status!(unsafe {
sys::napi_has_property(self.0.env, self.0.value, js_key, &mut result)
})?;
Ok(result)
}
#[inline]
pub fn has_property_js<K>(&self, name: K) -> Result<bool>
where
K: NapiRaw,
{
let mut result = false;
check_status!(unsafe {
sys::napi_has_property(self.0.env, self.0.value, name.raw(), &mut result)
})?;
Ok(result)
}
#[inline]
pub fn get_property_names(&self) -> Result<JsObject> {
let mut raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_property_names(self.0.env, self.0.value, &mut raw_value)
})?;
Ok(unsafe { JsObject::from_raw_unchecked(self.0.env, raw_value) })
}
#[cfg(feature = "napi6")]
#[inline]
pub fn get_all_property_names(
&self,
mode: KeyCollectionMode,
filter: KeyFilter,
conversion: KeyConversion,
) -> Result<JsObject> {
let mut properties_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_all_property_names(
self.0.env,
self.0.value,
mode.into(),
filter.into(),
conversion.into(),
&mut properties_value,
)
})?;
Ok(unsafe { JsObject::from_raw_unchecked(self.0.env, properties_value) })
}
#[inline]
pub fn get_prototype<T>(&self) -> Result<T>
where
T: NapiValue,
{
let mut result = ptr::null_mut();
check_status!(unsafe { sys::napi_get_prototype(self.0.env, self.0.value, &mut result) })?;
unsafe { T::from_raw(self.0.env, result) }
}
#[inline]
pub fn get_prototype_unchecked<T>(&self) -> Result<T>
where
T: NapiValue,
{
let mut result = ptr::null_mut();
check_status!(unsafe { sys::napi_get_prototype(self.0.env, self.0.value, &mut result) })?;
Ok(unsafe { T::from_raw_unchecked(self.0.env, result) })
}
#[inline]
pub fn set_element<T>(&mut self, index: u32, value: T) -> Result<()>
where
T: NapiRaw,
{
check_status!(unsafe {
sys::napi_set_element(self.0.env, self.0.value, index, value.raw())
})
}
#[inline]
pub fn has_element(&self, index: u32) -> Result<bool> {
let mut result = false;
check_status!(unsafe {
sys::napi_has_element(self.0.env, self.0.value, index, &mut result)
})?;
Ok(result)
}
#[inline]
pub fn delete_element(&mut self, index: u32) -> Result<bool> {
let mut result = false;
check_status!(unsafe {
sys::napi_delete_element(self.0.env, self.0.value, index, &mut result)
})?;
Ok(result)
}
#[inline]
pub fn get_element<T>(&self, index: u32) -> Result<T>
where
T: NapiValue,
{
let mut raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_element(self.0.env, self.0.value, index, &mut raw_value)
})?;
unsafe { T::from_raw(self.0.env, raw_value) }
}
#[inline]
pub fn get_element_unchecked<T>(&self, index: u32) -> Result<T>
where
T: NapiValue,
{
let mut raw_value = ptr::null_mut();
check_status!(unsafe {
sys::napi_get_element(self.0.env, self.0.value, index, &mut raw_value)
})?;
Ok(unsafe { T::from_raw_unchecked(self.0.env, raw_value) })
}
#[inline]
pub fn define_properties(&mut self, properties: &[Property]) -> Result<()> {
check_status!(unsafe {
sys::napi_define_properties(
self.0.env,
self.0.value,
properties.len(),
properties
.iter()
.map(|property| property.raw())
.collect::<Vec<sys::napi_property_descriptor>>()
.as_ptr(),
)
})
}
#[inline]
pub fn get_array_length(&self) -> Result<u32> {
if self.is_array()? != true {
return Err(Error::new(
Status::ArrayExpected,
"Object is not array".to_owned(),
));
}
self.get_array_length_unchecked()
}
#[inline]
pub fn get_array_length_unchecked(&self) -> Result<u32> {
let mut length: u32 = 0;
check_status!(unsafe {
sys::napi_get_array_length(self.0.env, self.0.value, &mut length)
})?;
Ok(length)
}
}
};
}
pub trait NapiRaw {
#[allow(clippy::missing_safety_doc)]
unsafe fn raw(&self) -> sys::napi_value;
}
pub trait NapiValue: Sized + NapiRaw {
#[allow(clippy::missing_safety_doc)]
unsafe fn from_raw(env: sys::napi_env, value: sys::napi_value) -> Result<Self>;
#[allow(clippy::missing_safety_doc)]
unsafe fn from_raw_unchecked(env: sys::napi_env, value: sys::napi_value) -> Self;
}
impl_js_value_methods!(JsUnknown);
impl_js_value_methods!(JsUndefined);
impl_js_value_methods!(JsNull);
impl_js_value_methods!(JsBoolean);
impl_js_value_methods!(JsBuffer);
impl_js_value_methods!(JsArrayBuffer);
impl_js_value_methods!(JsTypedArray);
impl_js_value_methods!(JsDataView);
impl_js_value_methods!(JsNumber);
impl_js_value_methods!(JsString);
impl_js_value_methods!(JsObject);
impl_js_value_methods!(JsGlobal);
#[cfg(feature = "napi5")]
impl_js_value_methods!(JsDate);
impl_js_value_methods!(JsFunction);
impl_js_value_methods!(JsExternal);
impl_js_value_methods!(JsSymbol);
impl_js_value_methods!(JsTimeout);
impl_object_methods!(JsObject);
impl_object_methods!(JsBuffer);
impl_object_methods!(JsArrayBuffer);
impl_object_methods!(JsTypedArray);
impl_object_methods!(JsDataView);
impl_object_methods!(JsGlobal);
use ValueType::*;
impl_napi_value_trait!(JsUndefined, Undefined);
impl_napi_value_trait!(JsNull, Null);
impl_napi_value_trait!(JsBoolean, Boolean);
impl_napi_value_trait!(JsBuffer, Object);
impl_napi_value_trait!(JsArrayBuffer, Object);
impl_napi_value_trait!(JsTypedArray, Object);
impl_napi_value_trait!(JsDataView, Object);
impl_napi_value_trait!(JsNumber, Number);
impl_napi_value_trait!(JsString, String);
impl_napi_value_trait!(JsObject, Object);
impl_napi_value_trait!(JsGlobal, Object);
#[cfg(feature = "napi5")]
impl_napi_value_trait!(JsDate, Object);
impl_napi_value_trait!(JsTimeout, Object);
impl_napi_value_trait!(JsFunction, Function);
impl_napi_value_trait!(JsExternal, External);
impl_napi_value_trait!(JsSymbol, Symbol);
impl NapiValue for JsUnknown {
#[inline]
unsafe fn from_raw(env: sys::napi_env, value: sys::napi_value) -> Result<Self> {
Ok(JsUnknown(Value {
env,
value,
value_type: Unknown,
}))
}
#[inline]
unsafe fn from_raw_unchecked(env: sys::napi_env, value: sys::napi_value) -> Self {
JsUnknown(Value {
env,
value,
value_type: Unknown,
})
}
}
impl NapiRaw for JsUnknown {
#[inline]
unsafe fn raw(&self) -> sys::napi_value {
self.0.value
}
}
impl<'env> NapiRaw for &'env JsUnknown {
#[inline]
unsafe fn raw(&self) -> sys::napi_value {
self.0.value
}
}
impl JsUnknown {
#[inline]
pub fn get_type(&self) -> Result<ValueType> {
unsafe { type_of!(self.0.env, self.0.value) }
}
#[inline]
pub unsafe fn cast<V>(&self) -> V
where
V: NapiValue,
{
V::from_raw_unchecked(self.0.env, self.0.value)
}
}