rune/
macros.rs

Help
1//! Implementations of macros
2macro_rules! define_unbox {
3    ($ident:ident, $ty:ty) => {
4        define_unbox!($ident, $ident, $ty);
5    };
6    ($ident:ident, $ty:ident, $self:ty) => {
7        #[allow(unused_qualifications)]
8        impl<'ob> std::convert::TryFrom<crate::core::object::Object<'ob>> for $self {
9            type Error = crate::core::error::TypeError;
10            fn try_from(obj: crate::core::object::Object<'ob>) -> Result<Self, Self::Error> {
11                match obj.untag() {
12                    crate::core::object::ObjectType::$ident(x) => Ok(x),
13                    _ => {
14                        Err(crate::core::error::TypeError::new(crate::core::error::Type::$ty, obj))
15                    }
16                }
17            }
18        }
19        #[allow(unused_qualifications)]
20        impl<'ob> std::convert::TryFrom<crate::core::object::Object<'ob>> for Option<$self> {
21            type Error = crate::core::error::TypeError;
22            fn try_from(obj: crate::core::object::Object<'ob>) -> Result<Self, Self::Error> {
23                match obj.untag() {
24                    crate::core::object::ObjectType::NIL => Ok(None),
25                    crate::core::object::ObjectType::$ident(x) => Ok(Some(x)),
26                    _ => {
27                        Err(crate::core::error::TypeError::new(crate::core::error::Type::$ty, obj))
28                    }
29                }
30            }
31        }
32    };
33}
34
35// Implementation in build.rs
36macro_rules! defsym {
37    ($sym:ident) => {};
38    ($sym:ident, $name:literal) => {};
39}
40
41macro_rules! defvar_bool {
42    ($sym:ident, $value:literal) => {};
43    ($sym:ident, $name:literal, $value:literal) => {};
44}
45
46macro_rules! defvar {
47    ($sym:ident) => {};
48    ($sym:ident, list![$($values:expr),+ $(,)?]) => {};
49    ($sym:ident, $value:expr) => {};
50    ($sym:ident, $name:literal, $value:expr) => {};
51}
rune/macros.rs

rune/
macros.rs
