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Add StaticTypeInfo convenience trait #91

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Merged
ascjones merged 9 commits into from
May 19, 2021
Merged

Add StaticTypeInfo convenience trait #91

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4d3b9f6
Add 'static bound to `TypeInfo` trait
ascjones May 17, 2021
cef6e74
Remove some more static bounds
ascjones May 18, 2021
d8ec489
Add basic test for struct with lifetime
ascjones May 18, 2021
39901fe
Add StaticTypeInfo trait
ascjones May 19, 2021
7556064
Revert adding 'static to TypeInfo
ascjones May 19, 2021
73ea38f
Use StaticTypeInfo in derive macro
ascjones May 19, 2021
fb21eb9
Fmt
ascjones May 19, 2021
c2c783f
Revert "Use StaticTypeInfo in derive macro"
ascjones May 19, 2021
6e6d7ad
Update src/lib.rs
ascjones May 19, 2021
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11 changes: 11 additions & 0 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -143,6 +143,17 @@ pub trait TypeInfo {
fn type_info() -> Type;
}

/// Convenience trait for implementors, combining `TypeInfo` and `'static` bounds.
///
/// # Note
///
/// Currently because of the `'static` constraint on [`std::any::TypeId::of`] (see [`MetaType`]),
/// `TypeInfo` constraints must also be accompanied by a `'static` bound. This trait is useful to
/// implementors so only a single constraint is required.
pub trait StaticTypeInfo: TypeInfo + 'static {}

impl<T> StaticTypeInfo for T where T: TypeInfo + 'static {}

/// Returns the runtime bridge to the types compile-time type information.
pub fn meta_type<T>() -> MetaType
where
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