soroban_env_common/
string.rs

1use crate::{declare_tag_based_object_wrapper, Env, TryFromVal, Val};
2
3#[cfg(feature = "std")]
4use crate::{
5    xdr::{ScErrorCode, ScErrorType},
6    TryIntoVal,
7};
8
9declare_tag_based_object_wrapper!(StringObject);
10
11#[cfg(feature = "std")]
12impl<E: Env> TryFromVal<E, StringObject> for String {
13    type Error = crate::Error;
14
15    fn try_from_val(env: &E, v: &StringObject) -> Result<Self, Self::Error> {
16        let len: u32 = env.string_len(*v).map_err(Into::into)?.into();
17        let len = len as usize;
18        let mut vec = std::vec![0; len];
19        env.string_copy_to_slice(*v, Val::U32_ZERO, &mut vec)
20            .map_err(Into::into)?;
21        String::from_utf8(vec).map_err(|_| {
22            crate::Error::from_type_and_code(ScErrorType::Value, ScErrorCode::InvalidInput)
23        })
24    }
25}
26
27#[cfg(feature = "std")]
28impl<E: Env> TryFromVal<E, Val> for String {
29    type Error = crate::Error;
30
31    #[inline(always)]
32    fn try_from_val(env: &E, val: &Val) -> Result<Self, Self::Error> {
33        let so: StringObject = val.try_into()?;
34        so.try_into_val(env)
35    }
36}
37
38impl<E: Env> TryFromVal<E, &str> for StringObject {
39    type Error = crate::Error;
40    #[inline(always)]
41    fn try_from_val(env: &E, val: &&str) -> Result<StringObject, Self::Error> {
42        env.string_new_from_slice(val.as_bytes())
43            .map_err(Into::into)
44    }
45}
46
47impl<E: Env> TryFromVal<E, &str> for Val {
48    type Error = crate::Error;
49    #[inline(always)]
50    fn try_from_val(env: &E, val: &&str) -> Result<Val, Self::Error> {
51        Ok(StringObject::try_from_val(env, val)?.into())
52    }
53}
54
55#[cfg(feature = "std")]
56impl<E: Env> TryFromVal<E, String> for StringObject {
57    type Error = crate::Error;
58
59    fn try_from_val(env: &E, v: &String) -> Result<Self, Self::Error> {
60        v.as_str().try_into_val(env)
61    }
62}
63
64#[cfg(feature = "std")]
65impl<E: Env> TryFromVal<E, String> for Val {
66    type Error = crate::Error;
67
68    fn try_from_val(env: &E, v: &String) -> Result<Self, Self::Error> {
69        v.as_str().try_into_val(env)
70    }
71}
soroban_env_common/string.rs

soroban_env_common/
string.rs
