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 pub fn as_str(&self) -> Result<&str> {
15 unsafe { CStr::from_ptr(self.buf.as_ptr()) }
16 .to_str()
17 .map_err(|e| Error::new(Status::InvalidArg, format!("{}", e)))
18 }
19
20 pub fn as_slice(&self) -> &[u8] {
21 unsafe { CStr::from_ptr(self.buf.as_ptr()) }.to_bytes()
22 }
23
24 pub fn len(&self) -> usize {
25 self.buf.len()
26 }
27
28 pub fn is_empty(&self) -> bool {
29 self.buf.is_empty()
30 }
31
32 pub fn into_owned(self) -> Result<String> {
33 Ok(self.as_str()?.to_owned())
34 }
35
36 pub fn take(self) -> Vec<u8> {
37 self.as_slice().to_vec()
38 }
39
40 pub fn into_value(self) -> JsString {
41 self.inner
42 }
43}
44
45impl TryFrom<JsStringUtf8> for String {
46 type Error = Error;
47
48 fn try_from(value: JsStringUtf8) -> Result<String> {
49 value.into_owned()
50 }
51}
52
53impl From<JsStringUtf8> for Vec<u8> {
54 fn from(value: JsStringUtf8) -> Self {
55 value.take()
56 }
57}
58