polyhorn_ios_sys/foundation/
string.rs

1use objc::runtime::*;
2use objc::*;
3
4use crate::{IntoRaw, Raw};
5
6/// A static, plain-text Unicode string object.
7pub struct NSString {
8    object: *mut Object,
9}
10
11const NS_UTF8_STRING_ENCODING: usize = 4;
12
13impl From<&str> for NSString {
14    fn from(value: &str) -> Self {
15        unsafe {
16            let mut object: *mut Object = msg_send![class!(NSString), alloc];
17            object = msg_send![object, initWithBytes: value.as_ptr()
18                                              length: value.len() as usize
19                                            encoding: NS_UTF8_STRING_ENCODING];
20            NSString::from_raw(object)
21        }
22    }
23}
24
25impl IntoRaw for &String {
26    type Raw = NSString;
27
28    fn into_raw(self) -> Self::Raw {
29        self.as_str().into()
30    }
31}
32
33impl Raw for NSString {
34    unsafe fn from_raw(object: *mut Object) -> Self {
35        NSString { object }
36    }
37
38    unsafe fn as_raw(&self) -> *mut Object {
39        self.object
40    }
41}
42
43impl Drop for NSString {
44    fn drop(&mut self) {
45        unsafe { objc_release(self.object) }
46    }
47}
polyhorn_ios_sys/foundation/string.rs

polyhorn_ios_sys/foundation/
string.rs
