Struct dbus::arg::Variant

pub struct Variant<T>(pub T);

A simple wrapper to specify a D-Bus variant.

See the argument guide and module level documentation for details and examples.

Methods

impl Variant<Box<dyn RefArg>>

pub fn new_refarg<'a>(i: &mut Iter<'a>) -> Option<Self>

Creates a new refarg from an Iter. Mainly for internal use.

Trait Implementations

impl<T> Arg for Variant<T>

const ARG_TYPE: ArgType

The corresponding D-Bus argument type code.

fn signature() -> Signature<'static>

The corresponding D-Bus type signature for this type.

fn arg_type() -> ArgType

Deprecated:

Use associated constant ARG_TYPE instead

The corresponding D-Bus argument type code; just returns ARG_TYPE.

impl<T: Arg + Append> Append for Variant<T>

fn append(self, i: &mut IterAppend)

Performs the append operation.

impl Append for Variant<MessageItem>

fn append(self, i: &mut IterAppend)

Performs the append operation.

impl Append for Variant<Box<dyn RefArg>>

fn append(self, i: &mut IterAppend)

Performs the append operation.

impl<'a, T: Get<'a>> Get<'a> for Variant<T>

fn get(i: &mut Iter<'a>) -> Option<Variant<T>>

Performs the get operation.

impl<'a> Get<'a> for Variant<Iter<'a>>

fn get(i: &mut Iter<'a>) -> Option<Variant<Iter<'a>>>

Performs the get operation.

impl<T: RefArg> RefArg for Variant<T>

fn arg_type(&self) -> ArgType

The corresponding D-Bus argument type code.

fn signature(&self) -> Signature<'static>

The corresponding D-Bus type signature for this type.

fn append(&self, i: &mut IterAppend)

Performs the append operation.

fn as_any(&self) -> &dyn Any where
    T: 'static, 

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

fn as_any_mut(&mut self) -> &mut dyn Any where
    T: 'static, 

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

fn as_i64(&self) -> Option<i64>

Try to read the argument as an i64.

fn as_u64(&self) -> Option<u64>

Try to read the argument as an u64.

fn as_f64(&self) -> Option<f64>

Try to read the argument as an f64.

fn as_str(&self) -> Option<&str>

Try to read the argument as a str.

fn as_iter<'a>(
    &'a self
) -> Option<Box<dyn Iterator<Item = &'a dyn RefArg> + 'a>>

Try to read the argument as an iterator.

fn box_clone(&self) -> Box<dyn RefArg + 'static>

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

impl<T: PartialEq> PartialEq<Variant<T>> for Variant<T>

fn eq(&self, other: &Variant<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Variant<T>) -> bool

This method tests for !=.

impl<T: Clone> Clone for Variant<T>

fn clone(&self) -> Variant<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Variant<Box<dyn RefArg>>

fn default() -> Self

Returns the "default value" for a type.

impl<T: Default> Default for Variant<T>

fn default() -> Self

Returns the "default value" for a type.

impl<T: PartialOrd> PartialOrd<Variant<T>> for Variant<T>

fn partial_cmp(&self, other: &Variant<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Variant<T>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Variant<T>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Variant<T>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Variant<T>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Eq> Eq for Variant<T>

impl<T: Ord> Ord for Variant<T>

fn cmp(&self, other: &Variant<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<T: Copy> Copy for Variant<T>

impl<T: Debug> Debug for Variant<T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: Hash> Hash for Variant<T>

fn hash<__HT: Hasher>(&self, state: &mut __HT)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].