obs_wrapper/
native_enum.rs

1#[derive(Debug)]
2pub struct NativeParsingError {
3    struct_name: &'static str,
4    value: i64,
5}
6
7impl NativeParsingError {
8    pub(crate) fn new(struct_name: &'static str, value: i64) -> Self {
9        Self { struct_name, value }
10    }
11}
12
13impl std::fmt::Display for NativeParsingError {
14    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
15        write!(
16            f,
17            "Failed to convert native value {} into {}",
18            self.value, self.struct_name
19        )
20    }
21}
22
23impl std::error::Error for NativeParsingError {}
24
25#[macro_export]
26macro_rules! native_enum {
27    ($name:ident,$native_name:ident { $($rust:ident => $native:ident),* }) => {
28        paste::item! {
29        #[derive(Debug, Clone, Copy, Eq, PartialEq)]
30            pub enum $name {
31                $($rust),*
32            }
33
34            #[allow(clippy::from_over_into)]
35            impl Into<$native_name> for $name {
36                fn into(self) -> obs_text_type {
37                    match self {
38                        $(Self::$rust => [<$native_name _ $native>]),*
39                    }
40                }
41            }
42
43            impl std::convert::TryFrom<$native_name> for $name {
44                type Error = $crate::native_enum::NativeParsingError;
45                fn try_from(value: $native_name) -> Result<Self, Self::Error> {
46                    match value {
47                        $([<$native_name _ $native>] => Ok(Self::$rust)),*,
48                        _ => Err($crate::native_enum::NativeParsingError::new(stringify!($name), value as i64))
49                    }
50                }
51            }
52        }
53    };
54}
obs_wrapper/native_enum.rs

obs_wrapper/
native_enum.rs
