yuuang_test_napi/js_values/string/
utf8.rs

1use std::convert::TryFrom;
2use std::ffi::CStr;
3use std::os::raw::c_char;
4use std::str;
5
6use crate::{Error, JsString, Result, Status};
7
8pub struct JsStringUtf8 {
9  pub(crate) inner: JsString,
10  pub(crate) buf: Vec<c_char>,
11}
12
13impl JsStringUtf8 {
14  #[inline]
15  pub fn as_str(&self) -> Result<&str> {
16    unsafe { CStr::from_ptr(self.buf.as_ptr()) }
17      .to_str()
18      .map_err(|e| Error::new(Status::InvalidArg, format!("{}", e)))
19  }
20
21  #[inline]
22  pub fn as_slice(&self) -> &[u8] {
23    unsafe { CStr::from_ptr(self.buf.as_ptr()) }.to_bytes()
24  }
25
26  #[inline]
27  pub fn len(&self) -> usize {
28    self.buf.len()
29  }
30
31  #[inline]
32  pub fn is_empty(&self) -> bool {
33    self.buf.is_empty()
34  }
35
36  #[inline]
37  pub fn into_owned(self) -> Result<String> {
38    Ok(self.as_str()?.to_owned())
39  }
40
41  #[inline]
42  pub fn take(self) -> Vec<u8> {
43    self.as_slice().to_vec()
44  }
45
46  #[inline]
47  pub fn into_value(self) -> JsString {
48    self.inner
49  }
50}
51
52impl TryFrom<JsStringUtf8> for String {
53  type Error = Error;
54
55  fn try_from(value: JsStringUtf8) -> Result<String> {
56    value.into_owned()
57  }
58}
59
60impl From<JsStringUtf8> for Vec<u8> {
61  fn from(value: JsStringUtf8) -> Self {
62    value.take()
63  }
64}