mono_rt/types/
string.rs

1use std::ffi::{CStr, CString};
2
3use super::{MonoDomain, mono_handle};
4use crate::{MonoError, Result, api};
5
6mono_handle!(MonoString);
7
8impl MonoString {
9    /// Creates a new Mono string from a Rust string slice in the given domain.
10    ///
11    /// # Errors
12    ///
13    /// Returns [`MonoError::NullByteInName`] if `text` contains an interior null byte.
14    /// Returns [`MonoError::Uninitialized`] if the Mono API has not been initialized.
15    pub fn new(domain: MonoDomain, text: &str) -> Result<Option<Self>> {
16        let c_text = CString::new(text).map_err(|_| MonoError::NullByteInName)?;
17        let ptr = api()?.string_new(domain.as_ptr(), c_text.as_ptr());
18        Ok(Self::from_ptr(ptr))
19    }
20
21    /// Converts this Mono string to a Rust `String`, replacing invalid UTF-8 sequences.
22    ///
23    /// Returns an empty string if the underlying pointer is null after conversion.
24    ///
25    /// # Errors
26    ///
27    /// Returns [`MonoError::Uninitialized`] if the Mono API has not been initialized.
28    pub fn to_string_lossy(self) -> Result<String> {
29        let raw = api()?.string_to_utf8(self.as_ptr().cast());
30        if raw.is_null() {
31            return Ok(String::new());
32        }
33
34        let result = unsafe { CStr::from_ptr(raw) }
35            .to_string_lossy()
36            .into_owned();
37
38        api()?.free(raw.cast());
39
40        Ok(result)
41    }
42}
mono_rt/types/string.rs

mono_rt/types/
string.rs
