1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

use crate::{
    Bytes, FromValue, OwnedMut, OwnedRef, RawOwnedMut, RawOwnedRef, UnsafeFromValue, Value, VmError,
};

value_types!(crate::BYTES_TYPE, Bytes => Bytes, &Bytes, &mut Bytes, &[u8]);

impl FromValue for Bytes {
    fn from_value(value: Value) -> Result<Self, VmError> {
        let bytes = value.into_bytes()?;
        Ok(bytes.borrow_ref()?.clone())
    }
}

impl<'a> UnsafeFromValue for &'a Bytes {
    type Output = *const Bytes;
    type Guard = RawOwnedRef;

    unsafe fn unsafe_from_value(value: Value) -> Result<(Self::Output, Self::Guard), VmError> {
        let bytes = value.into_bytes()?;
        let bytes = bytes.owned_ref()?;
        Ok(OwnedRef::into_raw(bytes))
    }

    unsafe fn to_arg(output: Self::Output) -> Self {
        &*output
    }
}

impl<'a> UnsafeFromValue for &'a mut Bytes {
    type Output = *mut Bytes;
    type Guard = RawOwnedMut;

    unsafe fn unsafe_from_value(value: Value) -> Result<(Self::Output, Self::Guard), VmError> {
        let bytes = value.into_bytes()?;
        let bytes = bytes.owned_mut()?;
        Ok(OwnedMut::into_raw(bytes))
    }

    unsafe fn to_arg(output: Self::Output) -> Self {
        &mut *output
    }
}

impl<'a> UnsafeFromValue for &'a [u8] {
    type Output = *const [u8];
    type Guard = RawOwnedRef;

    unsafe fn unsafe_from_value(value: Value) -> Result<(Self::Output, Self::Guard), VmError> {
        let bytes = value.into_bytes()?;
        let bytes = bytes.owned_ref()?;
        let (value, guard) = OwnedRef::into_raw(bytes);
        Ok(((*value).bytes.as_slice(), guard))
    }

    unsafe fn to_arg(output: Self::Output) -> Self {
        &*output
    }
}