Struct dbus::arg::Iter [−][src]
Helper struct for retrieve one or more arguments from a Message.
Implementations
impl<'a> Iter<'a>
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pub fn new(m: &'a Message) -> Iter<'a>ⓘ
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Creates a new struct for iterating over the arguments of a message, starting with the first argument.
pub fn get<T: Get<'a>>(&mut self) -> Option<T>
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Returns the current argument, if T is the argument type. Otherwise returns None.
pub fn get_refarg(&mut self) -> Option<Box<dyn RefArg + 'static>>
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Returns the current argument as a trait object.
Note: For the more complex arguments (arrays / dicts / structs, and especially combinations thereof), their internal representations are still a bit in flux. Instead, use as_iter() to read the values of those.
The rest are unlikely to change - Variants are Variant<Box<dyn RefArg>>
, strings are String
,
paths are Path<'static>
, signatures are Signature<'static>
, Int32 are i32s
and so on.
pub fn signature(&mut self) -> Signature<'static>
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Returns the type signature for the current argument.
pub fn arg_type(&mut self) -> ArgType
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The raw arg_type for the current item.
Unlike Arg::arg_type, this requires access to self and is not a static method. You can match this against Arg::arg_type for different types to understand what type the current item is. In case you're past the last argument, this function will return 0.
pub fn next(&mut self) -> bool
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Returns false if there are no more items.
pub fn read<T: Arg + Get<'a>>(&mut self) -> Result<T, TypeMismatchError>
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Wrapper around get
and next
. Calls get
, and then next
if get
succeeded.
Also returns a Result
rather than an Option
to give an error if successful.
Example
struct ServiceBrowserItemNew { interface: i32, protocol: i32, name: String, item_type: String, domain: String, flags: u32, } fn service_browser_item_new_msg(m: &Message) -> Result<ServiceBrowserItemNew, TypeMismatchError> { let mut iter = m.iter_init(); Ok(ServiceBrowserItemNew { interface: iter.read()?, protocol: iter.read()?, name: iter.read()?, item_type: iter.read()?, domain: iter.read()?, flags: iter.read()?, }) }
pub fn recurse(&mut self, arg_type: ArgType) -> Option<Iter<'a>>
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If the current argument is a container of the specified arg_type, then a new Iter is returned which is for iterating over the contents inside the container.
Primarily for internal use (the "get" function is more ergonomic), but could be useful for recursing into containers with unknown types.
Trait Implementations
impl<'a> Clone for Iter<'a>
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impl<'a> Copy for Iter<'a>
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impl<'a> Debug for Iter<'a>
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impl<'a> Iterator for Iter<'a>
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type Item = Box<dyn RefArg + 'static>
The type of the elements being iterated over.
fn next(&mut self) -> Option<Self::Item>
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pub fn size_hint(&self) -> (usize, Option<usize>)
1.0.0[src]
pub fn count(self) -> usize
1.0.0[src]
pub fn last(self) -> Option<Self::Item>
1.0.0[src]
pub fn advance_by(&mut self, n: usize) -> Result<(), usize>
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pub fn nth(&mut self, n: usize) -> Option<Self::Item>
1.0.0[src]
pub fn step_by(self, step: usize) -> StepBy<Self>
1.28.0[src]
pub fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter> where
U: IntoIterator<Item = Self::Item>,
1.0.0[src]
U: IntoIterator<Item = Self::Item>,
pub fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter> where
U: IntoIterator,
1.0.0[src]
U: IntoIterator,
pub fn intersperse(self, separator: Self::Item) -> Intersperse<Self> where
Self::Item: Clone,
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Self::Item: Clone,
pub fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G> where
G: FnMut() -> Self::Item,
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G: FnMut() -> Self::Item,
pub fn map<B, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> B,
1.0.0[src]
F: FnMut(Self::Item) -> B,
pub fn for_each<F>(self, f: F) where
F: FnMut(Self::Item),
1.21.0[src]
F: FnMut(Self::Item),
pub fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
pub fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<B>,
1.0.0[src]
F: FnMut(Self::Item) -> Option<B>,
pub fn enumerate(self) -> Enumerate<Self>
1.0.0[src]
pub fn peekable(self) -> Peekable<Self>
1.0.0[src]
pub fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
pub fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
pub fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P> where
P: FnMut(Self::Item) -> Option<B>,
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P: FnMut(Self::Item) -> Option<B>,
pub fn skip(self, n: usize) -> Skip<Self>
1.0.0[src]
pub fn take(self, n: usize) -> Take<Self>
1.0.0[src]
pub fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where
F: FnMut(&mut St, Self::Item) -> Option<B>,
1.0.0[src]
F: FnMut(&mut St, Self::Item) -> Option<B>,
pub fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: IntoIterator,
1.0.0[src]
F: FnMut(Self::Item) -> U,
U: IntoIterator,
pub fn flatten(self) -> Flatten<Self> where
Self::Item: IntoIterator,
1.29.0[src]
Self::Item: IntoIterator,
pub fn fuse(self) -> Fuse<Self>
1.0.0[src]
pub fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
1.0.0[src]
F: FnMut(&Self::Item),
pub fn by_ref(&mut self) -> &mut Self
1.0.0[src]
#[must_use =
"if you really need to exhaust the iterator, consider `.for_each(drop)` instead"]pub fn collect<B>(self) -> B where
B: FromIterator<Self::Item>,
1.0.0[src]
B: FromIterator<Self::Item>,
pub fn partition<B, F>(self, f: F) -> (B, B) where
F: FnMut(&Self::Item) -> bool,
B: Default + Extend<Self::Item>,
1.0.0[src]
F: FnMut(&Self::Item) -> bool,
B: Default + Extend<Self::Item>,
pub fn partition_in_place<'a, T, P>(self, predicate: P) -> usize where
Self: DoubleEndedIterator<Item = &'a mut T>,
P: FnMut(&T) -> bool,
T: 'a,
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Self: DoubleEndedIterator<Item = &'a mut T>,
P: FnMut(&T) -> bool,
T: 'a,
pub fn is_partitioned<P>(self, predicate: P) -> bool where
P: FnMut(Self::Item) -> bool,
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P: FnMut(Self::Item) -> bool,
pub fn try_fold<B, F, R>(&mut self, init: B, f: F) -> R where
R: Try<Ok = B>,
F: FnMut(B, Self::Item) -> R,
1.27.0[src]
R: Try<Ok = B>,
F: FnMut(B, Self::Item) -> R,
pub fn try_for_each<F, R>(&mut self, f: F) -> R where
R: Try<Ok = ()>,
F: FnMut(Self::Item) -> R,
1.27.0[src]
R: Try<Ok = ()>,
F: FnMut(Self::Item) -> R,
pub fn fold<B, F>(self, init: B, f: F) -> B where
F: FnMut(B, Self::Item) -> B,
1.0.0[src]
F: FnMut(B, Self::Item) -> B,
pub fn reduce<F>(self, f: F) -> Option<Self::Item> where
F: FnMut(Self::Item, Self::Item) -> Self::Item,
1.51.0[src]
F: FnMut(Self::Item, Self::Item) -> Self::Item,
pub fn all<F>(&mut self, f: F) -> bool where
F: FnMut(Self::Item) -> bool,
1.0.0[src]
F: FnMut(Self::Item) -> bool,
pub fn any<F>(&mut self, f: F) -> bool where
F: FnMut(Self::Item) -> bool,
1.0.0[src]
F: FnMut(Self::Item) -> bool,
pub fn find<P>(&mut self, predicate: P) -> Option<Self::Item> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
pub fn find_map<B, F>(&mut self, f: F) -> Option<B> where
F: FnMut(Self::Item) -> Option<B>,
1.30.0[src]
F: FnMut(Self::Item) -> Option<B>,
pub fn try_find<F, R>(
&mut self,
f: F
) -> Result<Option<Self::Item>, <R as Try>::Error> where
R: Try<Ok = bool>,
F: FnMut(&Self::Item) -> R,
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&mut self,
f: F
) -> Result<Option<Self::Item>, <R as Try>::Error> where
R: Try<Ok = bool>,
F: FnMut(&Self::Item) -> R,
pub fn position<P>(&mut self, predicate: P) -> Option<usize> where
P: FnMut(Self::Item) -> bool,
1.0.0[src]
P: FnMut(Self::Item) -> bool,
pub fn rposition<P>(&mut self, predicate: P) -> Option<usize> where
Self: ExactSizeIterator + DoubleEndedIterator,
P: FnMut(Self::Item) -> bool,
1.0.0[src]
Self: ExactSizeIterator + DoubleEndedIterator,
P: FnMut(Self::Item) -> bool,
pub fn max(self) -> Option<Self::Item> where
Self::Item: Ord,
1.0.0[src]
Self::Item: Ord,
pub fn min(self) -> Option<Self::Item> where
Self::Item: Ord,
1.0.0[src]
Self::Item: Ord,
pub fn max_by_key<B, F>(self, f: F) -> Option<Self::Item> where
F: FnMut(&Self::Item) -> B,
B: Ord,
1.6.0[src]
F: FnMut(&Self::Item) -> B,
B: Ord,
pub fn max_by<F>(self, compare: F) -> Option<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.15.0[src]
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
pub fn min_by_key<B, F>(self, f: F) -> Option<Self::Item> where
F: FnMut(&Self::Item) -> B,
B: Ord,
1.6.0[src]
F: FnMut(&Self::Item) -> B,
B: Ord,
pub fn min_by<F>(self, compare: F) -> Option<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.15.0[src]
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
pub fn rev(self) -> Rev<Self> where
Self: DoubleEndedIterator,
1.0.0[src]
Self: DoubleEndedIterator,
pub fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB) where
Self: Iterator<Item = (A, B)>,
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
1.0.0[src]
Self: Iterator<Item = (A, B)>,
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
pub fn copied<'a, T>(self) -> Copied<Self> where
Self: Iterator<Item = &'a T>,
T: 'a + Copy,
1.36.0[src]
Self: Iterator<Item = &'a T>,
T: 'a + Copy,
pub fn cloned<'a, T>(self) -> Cloned<Self> where
Self: Iterator<Item = &'a T>,
T: 'a + Clone,
1.0.0[src]
Self: Iterator<Item = &'a T>,
T: 'a + Clone,
pub fn cycle(self) -> Cycle<Self> where
Self: Clone,
1.0.0[src]
Self: Clone,
pub fn sum<S>(self) -> S where
S: Sum<Self::Item>,
1.11.0[src]
S: Sum<Self::Item>,
pub fn product<P>(self) -> P where
P: Product<Self::Item>,
1.11.0[src]
P: Product<Self::Item>,
pub fn cmp<I>(self, other: I) -> Ordering where
I: IntoIterator<Item = Self::Item>,
Self::Item: Ord,
1.5.0[src]
I: IntoIterator<Item = Self::Item>,
Self::Item: Ord,
pub fn cmp_by<I, F>(self, other: I, cmp: F) -> Ordering where
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
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I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
pub fn partial_cmp<I>(self, other: I) -> Option<Ordering> where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
pub fn partial_cmp_by<I, F>(self, other: I, partial_cmp: F) -> Option<Ordering> where
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,
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I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,
pub fn eq<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
pub fn eq_by<I, F>(self, other: I, eq: F) -> bool where
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
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I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
pub fn ne<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
pub fn lt<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
pub fn le<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
pub fn gt<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
pub fn ge<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
pub fn is_sorted(self) -> bool where
Self::Item: PartialOrd<Self::Item>,
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Self::Item: PartialOrd<Self::Item>,
pub fn is_sorted_by<F>(self, compare: F) -> bool where
F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
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F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
pub fn is_sorted_by_key<F, K>(self, f: F) -> bool where
F: FnMut(Self::Item) -> K,
K: PartialOrd<K>,
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F: FnMut(Self::Item) -> K,
K: PartialOrd<K>,
Auto Trait Implementations
impl<'a> RefUnwindSafe for Iter<'a>
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impl<'a> !Send for Iter<'a>
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impl<'a> !Sync for Iter<'a>
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impl<'a> Unpin for Iter<'a>
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impl<'a> UnwindSafe for Iter<'a>
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<I> IntoIterator for I where
I: Iterator,
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I: Iterator,
type Item = <I as Iterator>::Item
The type of the elements being iterated over.
type IntoIter = I
Which kind of iterator are we turning this into?
pub fn into_iter(self) -> I
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impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,