Trait dbus::arg::RefArg

source · 
pub trait RefArg: Debug + Send + Sync {

Show 13 methods    fn arg_type(&self) -> ArgType;
    fn signature(&self) -> Signature<'static>;
    fn append(&self, _: &mut IterAppend<'_>);
    fn as_any(&self) -> &dyn Any
    where
        Self: 'static;
    fn as_any_mut(&mut self) -> &mut dyn Any
    where
        Self: 'static;
    fn box_clone(&self) -> Box<dyn RefArg + 'static>;

    fn as_i64(&self) -> Option<i64> { ... }
    fn as_u64(&self) -> Option<u64> { ... }
    fn as_f64(&self) -> Option<f64> { ... }
    fn as_str(&self) -> Option<&str> { ... }
    fn as_iter<'a>(
        &'a self
    ) -> Option<Box<dyn Iterator<Item = &'a dyn RefArg> + 'a>> { ... }
    fn as_static_inner(&self, _index: usize) -> Option<&(dyn RefArg + 'static)>
    where
        Self: 'static,
    { ... }
    fn array_clone(_arg: &[Self]) -> Option<Box<dyn RefArg + 'static>>
    where
        Self: Sized,
    { ... }

}
Expand description

Object safe version of Arg + Append + Get.

Required Methods§

The corresponding D-Bus argument type code.

The corresponding D-Bus type signature for this type.

Performs the append operation.

Transforms this argument to Any (which can be downcasted to read the current value).

See the argument guide’s reference section for which types you can cast to.

Transforms this argument to Any (which can be downcasted to read the current value).

See the argument guide’s reference section for which types you can cast to.

Panic

Will panic if the interior cannot be made mutable, e g, if encapsulated inside a Rc with a reference count > 1.

Deep clone of the RefArg, causing the result to be ’static.

Usable as an escape hatch in case of lifetime problems with RefArg.

In case of complex types (Array, Dict, Struct), the clone is not guaranteed to have the same internal representation as the original.

Provided Methods§

Try to read the argument as an i64.

Works for: Boolean, Byte, Int16, UInt16, Int32, UInt32, Int64, UnixFd.

Try to read the argument as an u64.

Works for: Boolean, Byte, Int16, UInt16, Int32, UInt32, UInt64.

Try to read the argument as an f64.

Works for: Boolean, Byte, Int16, UInt16, Int32, UInt32, Double.

Try to read the argument as a str.

Works for: String, ObjectPath, Signature.

Try to read the argument as an iterator.

Works for: Array/Dict, Struct, Variant. For Dicts, keys and values are interleaved.

Try to read the inner of an argument, as another argument, specifying an index.

Works for: Variant, Array, Struct, Dict. For Dicts, even indices gets a key, odd indices gets a value.

Deep clone of an array.

This method is used internally by box_clone.

Trait Implementations§

Performs the get operation.

Implementations on Foreign Types§

Implementors§