4 releases (breaking)
0.12.0 | Dec 25, 2019 |
---|---|
0.11.0 | Mar 24, 2019 |
0.10.0 | Jun 3, 2017 |
0.1.0 | Apr 23, 2017 |
#234 in #scripting-language
Used in 3 crates
22KB
357 lines
ketos_derive
Provides a set of custom #[derive(...)]
macros for convenience when using Ketos.
One or more of the following names can be added to the derive
attribute of
any struct or enum value. For example:
extern crate ketos;
#[derive(Clone, Debug, ForeignValue, FromValue, IntoValue)]
struct Foo {
// ...
}
derive(ForeignValue)
Implements ForeignValue
for the given type. The only method implemented by this macro is type_name
.
All other methods retain their default implementations.
The ForeignValue
trait must be implemented (either manually or using this derive
)
for any of the other derive
implementations to succeed.
derive(FromValue)
Implements FromValue
for the given type.
The generated implementation requires that the instance of the type held by the
Ketos Value
is unique, i.e. that the contained Rc
has a reference count of 1
.
If your type implements Clone
, derive(FromValueClone)
will instead generate
an implementation of FromValue
that clones the contained value, if necessary.
derive(FromValueClone)
Implements FromValue
for the given type, provided that the type implements the Clone
trait.
If the value contained in the Ketos Value
is not unique, the result will be
a clone of the contained value.
derive(FromValueRef)
Implements FromValueRef
for the given type.
derive(IntoValue)
Implements Into<Value>
for the given type.
Dependencies
~1.5MB
~36K SLoC