Enum dbus::arg::messageitem::MessageItem [−][src]
pub enum MessageItem {}Show variants
Array(MessageItemArray), Struct(Vec<MessageItem>), Variant(Box<MessageItem>), Dict(MessageItemDict), ObjectPath(Path<'static>), Signature(Signature<'static>), Str(String), Bool(bool), Byte(u8), Int16(i16), Int32(i32), Int64(i64), UInt16(u16), UInt32(u32), UInt64(u64), Double(f64), UnixFd(OwnedFd),
Expand description
MessageItem - used as parameters and return values from method calls, or as data added to a signal (old, enum version).
Note that the newer generic design (see arg
module) is both faster
and less error prone than MessageItem, and should be your first hand choice
whenever applicable.
Variants
Array(MessageItemArray)
A D-Bus array requires all elements to be of the same type. All elements must match the Signature.
Struct(Vec<MessageItem>)
A D-Bus struct allows for values of different types.
Variant(Box<MessageItem>)
A D-Bus variant is a wrapper around another MessageItem
, which
can be of any type.
Dict(MessageItemDict)
A D-Bus dictionary. All keys and values are required to be of the same type. Not all types can be dictionary keys, but all can be dictionary values.
ObjectPath(Path<'static>)
A D-Bus objectpath requires its content to be a valid objectpath, so this cannot be any string.
Signature(Signature<'static>)
A D-Bus signature requires its content to be a valid type signature, so this cannot be any string.
Str(String)
A D-Bus String is zero terminated, so no \0 s in the String, please. (D-Bus strings are also - like Rust strings - required to be valid UTF-8.)
Bool(bool)
A D-Bus boolean type.
Byte(u8)
A D-Bus unsigned 8 bit type.
Int16(i16)
A D-Bus signed 16 bit type.
Int32(i32)
A D-Bus signed 32 bit type.
Int64(i64)
A D-Bus signed 64 bit type.
UInt16(u16)
A D-Bus unsigned 16 bit type.
UInt32(u32)
A D-Bus unsigned 32 bit type.
UInt64(u64)
A D-Bus unsigned 64 bit type.
Double(f64)
A D-Bus IEEE-754 double-precision floating point type.
UnixFd(OwnedFd)
D-Bus allows for sending file descriptors, which can be used to set up SHM, unix pipes, or other communication channels.
Implementations
pub fn from_dict<E, I: Iterator<Item = Result<(String, MessageItem), E>>>(
i: I
) -> Result<MessageItem, E>
[src]
pub fn from_dict<E, I: Iterator<Item = Result<(String, MessageItem), E>>>(
i: I
) -> Result<MessageItem, E>
[src]Creates a (String, Variant) dictionary from an iterator with Result passthrough (an Err will abort and return that Err)
Creates an MessageItem::Array from a list of MessageItems.
Note: This requires v
to be non-empty. See also
MessageItem::from(&[T])
, which can handle empty arrays as well.
Creates an MessageItem::Dict from a list of MessageItem pairs.
Note: This requires v
to be non-empty. See also
MessageItem::from(&[(T1, T2)])
, which can handle empty arrays as well.
Get the inner value of a MessageItem
Example
use dbus::arg::messageitem::MessageItem; let m: MessageItem = 5i64.into(); let s: i64 = m.inner().unwrap(); assert_eq!(s, 5i64);
Get the underlying MessageItem
of a MessageItem::Variant
Nested MessageItem::Variant
s are unwrapped recursively until a
non-Variant
is found.
Example
use dbus::arg::messageitem::MessageItem; let nested = MessageItem::Variant(Box::new(6i64.into())); let flat: MessageItem = 6i64.into(); assert_ne!(&nested, &flat); assert_eq!(nested.peel(), &flat);
Trait Implementations
Performs the append operation by borrowing self.
Performs the append operation by consuming self.
impl<'a, T1, T2> From<&'a [(T1, T2)]> for MessageItem where
T1: Into<MessageItem> + Clone + Default,
T2: Into<MessageItem> + Clone + Default,
[src]
impl<'a, T1, T2> From<&'a [(T1, T2)]> for MessageItem where
T1: Into<MessageItem> + Clone + Default,
T2: Into<MessageItem> + Clone + Default,
[src]Create a MessageItem::Dict
.
Create a MessageItem::Array
.
Performs the conversion.
Performs the conversion.
Create a MessageItem::Variant
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
Performs the conversion.
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Performs the append operation.
Transforms this argument to Any (which can be downcasted to read the current value). Read more
Transforms this argument to Any (which can be downcasted to read the current value). Read more
Deep clone of the RefArg, causing the result to be ’static. Read more
Try to read the argument as an iterator. Read more
Performs the conversion.
Performs the conversion.
Auto Trait Implementations
impl RefUnwindSafe for MessageItem
impl Send for MessageItem
impl Sync for MessageItem
impl Unpin for MessageItem
impl UnwindSafe for MessageItem
Blanket Implementations
Mutably borrows from an owned value. Read more