cxx/symbols/
rust_str.rs

1#[cfg(feature = "alloc")]
2use alloc::string::String;
3use core::mem::MaybeUninit;
4use core::ptr;
5use core::slice;
6use core::str;
7
8#[export_name = "cxxbridge1$str$new"]
9unsafe extern "C" fn str_new(this: &mut MaybeUninit<&str>) {
10    let this = this.as_mut_ptr();
11    unsafe { ptr::write(this, "") }
12}
13
14#[cfg(feature = "alloc")]
15#[export_name = "cxxbridge1$str$ref"]
16unsafe extern "C" fn str_ref<'a>(this: &mut MaybeUninit<&'a str>, string: &'a String) {
17    let this = this.as_mut_ptr();
18    let s = string.as_str();
19    unsafe { ptr::write(this, s) }
20}
21
22#[export_name = "cxxbridge1$str$from"]
23unsafe extern "C" fn str_from(this: &mut MaybeUninit<&str>, ptr: *const u8, len: usize) -> bool {
24    let slice = unsafe { slice::from_raw_parts(ptr, len) };
25    match str::from_utf8(slice) {
26        Ok(s) => {
27            let this = this.as_mut_ptr();
28            unsafe { ptr::write(this, s) }
29            true
30        }
31        Err(_) => false,
32    }
33}
34
35#[export_name = "cxxbridge1$str$ptr"]
36unsafe extern "C" fn str_ptr(this: &&str) -> *const u8 {
37    this.as_ptr()
38}
39
40#[export_name = "cxxbridge1$str$len"]
41unsafe extern "C" fn str_len(this: &&str) -> usize {
42    this.len()
43}