98 lines
3 KiB
Rust
98 lines
3 KiB
Rust
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use std::ffi::CString;
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use std::ptr;
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use super::Value;
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use crate::error::check_status;
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use crate::{sys, Env, Error, JsBuffer, JsNumber, JsString, NapiValue, Result, Status};
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#[derive(Clone, Copy, Debug)]
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pub struct JsObject(pub(crate) Value);
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impl JsObject {
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pub fn set_property<V: NapiValue>(&mut self, key: JsString, value: V) -> Result<()> {
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let status =
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unsafe { sys::napi_set_property(self.0.env, self.0.value, key.0.value, value.raw_value()) };
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check_status(status)?;
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Ok(())
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}
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pub fn set_number_indexed_property<V: NapiValue>(
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&mut self,
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key: JsNumber,
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value: V,
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) -> Result<()> {
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let status =
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unsafe { sys::napi_set_property(self.0.env, self.0.value, key.0.value, value.raw_value()) };
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check_status(status)?;
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Ok(())
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}
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pub fn set_named_property<T: NapiValue>(&mut self, name: &str, value: T) -> Result<()> {
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let key = CString::new(name)?;
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let status = unsafe {
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sys::napi_set_named_property(self.0.env, self.0.value, key.as_ptr(), value.raw_value())
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};
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check_status(status)?;
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Ok(())
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}
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pub fn get_named_property<T: NapiValue>(&self, name: &str) -> Result<T> {
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let key = CString::new(name)?;
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let mut raw_value = ptr::null_mut();
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let status = unsafe {
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sys::napi_get_named_property(self.0.env, self.0.value, key.as_ptr(), &mut raw_value)
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};
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check_status(status)?;
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T::from_raw(self.0.env, raw_value)
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}
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pub fn get_property_names<T: NapiValue>(&self) -> Result<T> {
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let mut raw_value = ptr::null_mut();
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let status = unsafe { sys::napi_get_property_names(self.0.env, self.0.value, &mut raw_value) };
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check_status(status)?;
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T::from_raw(self.0.env, raw_value)
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}
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pub fn set_index<T: NapiValue>(&mut self, index: usize, value: T) -> Result<()> {
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self.set_number_indexed_property(Env::from_raw(self.0.env).create_int64(index as i64)?, value)
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}
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pub fn get_index<T: NapiValue>(&self, index: u32) -> Result<T> {
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let mut raw_value = ptr::null_mut();
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let status = unsafe { sys::napi_get_element(self.0.env, self.0.value, index, &mut raw_value) };
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check_status(status)?;
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T::from_raw(self.0.env, raw_value)
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}
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pub fn is_array(&self) -> Result<bool> {
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let mut is_array = false;
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let status = unsafe { sys::napi_is_array(self.0.env, self.0.value, &mut is_array) };
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check_status(status)?;
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Ok(is_array)
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}
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pub fn is_buffer(&self) -> Result<bool> {
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let mut is_buffer = false;
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let status = unsafe { sys::napi_is_buffer(self.0.env, self.0.value, &mut is_buffer) };
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check_status(status)?;
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Ok(is_buffer)
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}
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pub fn to_buffer(&self) -> Result<JsBuffer> {
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JsBuffer::from_raw(self.0.env, self.0.value)
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}
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pub fn get_array_length(&self) -> Result<u32> {
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if self.is_array()? != true {
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return Err(Error::new(
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Status::ArrayExpected,
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"Object is not array".to_owned(),
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));
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}
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let mut length: u32 = 0;
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let status = unsafe { sys::napi_get_array_length(self.0.env, self.raw_value(), &mut length) };
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check_status(status)?;
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Ok(length)
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}
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}
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