error[E0277]: the trait bound `std::option::Option<std::string::String>: From<zbus::zvariant::Value<'_>>` is not satisfied
--> src/main.rs:44:67
|
44 | #[derive(Debug, Clone, PartialEq, Default, Type, DeserializeDict, Value)]
| ^^^^^ the trait `From<zbus::zvariant::Value<'_>>` is not implemented for `std::option::Option<std::string::String>`
|
= help: the following other types implement trait `From<T>`:
<std::option::Option<&'a T> as From<&'a std::option::Option<T>>>
<std::option::Option<&'a mut T> as From<&'a mut std::option::Option<T>>>
<std::option::Option<&'a tracing_core::span::Id> as From<&'a tracing::span::EnteredSpan>>
<std::option::Option<&'a tracing_core::span::Id> as From<&'a tracing::span::Span>>
<std::option::Option<&'a tracing_core::span::Id> as From<&'a tracing_core::span::Current>>
<std::option::Option<&'static tracing_core::metadata::Metadata<'static>> as From<&'a tracing_core::span::Current>>
<std::option::Option<T> as From<Optional<T>>>
<std::option::Option<T> as From<T>>
and 7 others
= note: required because of the requirements on the impl of `Into<std::option::Option<std::string::String>>` for `zbus::zvariant::Value<'_>`
= note: required because of the requirements on the impl of `TryFrom<zbus::zvariant::Value<'_>>` for `std::option::Option<std::string::String>`
note: required by a bound in `zbus::zvariant::Value::<'a>::downcast`
--> /home/sw/.cargo/registry/src/github.com-1ecc6299db9ec823/zvariant-3.10.0/src/value.rs:310:12
|
310 | T: TryFrom<Value<'a>>,
| ^^^^^^^^^^^^^^^^^^ required by this bound in `zbus::zvariant::Value::<'a>::downcast`
= note: this error originates in the derive macro `Value` (in Nightly builds, run with -Z macro-backtrace for more info)
For more information about this error, try `rustc --explain E0277`.
In GitLab by @seiwill on Feb 1, 2023, 17:41
Deriving
Value
onsignature = dict
Struct
s that haveOption
values fails to compile.Gives error: