rune/runtime/const_value/
macros.rs

1macro_rules! inline_into {
2    (
3        $(#[$($meta:meta)*])*
4        $kind:ident($ty:ty),
5        $as:ident,
6        $as_mut:ident,
7    ) => {
8        $(#[$($meta)*])*
9        ///
10        /// This gets a copy of the value.
11        #[inline]
12        pub fn $as(&self) -> Result<$ty, RuntimeError> {
13            match &self.kind {
14                ConstValueKind::Inline(Inline::$kind(value)) => {
15                    Ok(*value)
16                }
17                value => {
18                    Err(RuntimeError::expected::<$ty>(value.type_info()))
19                }
20            }
21        }
22
23        $(#[$($meta)*])*
24        ///
25        /// This gets the value by mutable reference.
26        #[inline]
27        pub fn $as_mut(&mut self) -> Result<&mut $ty, RuntimeError> {
28            match &mut self.kind {
29                ConstValueKind::Inline(Inline::$kind(value)) => {
30                    Ok(value)
31                }
32                value => {
33                    Err(RuntimeError::expected::<$ty>(value.type_info()))
34                }
35            }
36        }
37    }
38}