[−][src]Struct wasmer_interface_types_fl::vec1::Vec1
Vec1<T>
represents a non-empty Vec<T>
. It derefs to Vec<T>
directly.
Implementations
impl<T> Vec1<T> where
T: Debug,
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T: Debug,
pub fn new(items: Vec<T>) -> Result<Self, EmptyVec>
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Creates a new non-empty vector, based on an inner Vec<T>
. If
the inner vector is empty, a EmptyVec
error is returned.
pub fn into_vec(self) -> Vec<T>
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Converts this Vec1 into Vec
Methods from Deref<Target = Vec<T>>
pub fn capacity(&self) -> usize
1.0.0[src]
Returns the number of elements the vector can hold without reallocating.
Examples
let vec: Vec<i32> = Vec::with_capacity(10); assert_eq!(vec.capacity(), 10);
pub fn as_slice(&self) -> &[T]
1.7.0[src]
Extracts a slice containing the entire vector.
Equivalent to &s[..]
.
Examples
use std::io::{self, Write}; let buffer = vec![1, 2, 3, 5, 8]; io::sink().write(buffer.as_slice()).unwrap();
pub fn as_ptr(&self) -> *const T
1.37.0[src]
Returns a raw pointer to the vector's buffer.
The caller must ensure that the vector outlives the pointer this function returns, or else it will end up pointing to garbage. Modifying the vector may cause its buffer to be reallocated, which would also make any pointers to it invalid.
The caller must also ensure that the memory the pointer (non-transitively) points to
is never written to (except inside an UnsafeCell
) using this pointer or any pointer
derived from it. If you need to mutate the contents of the slice, use as_mut_ptr
.
Examples
let x = vec![1, 2, 4]; let x_ptr = x.as_ptr(); unsafe { for i in 0..x.len() { assert_eq!(*x_ptr.add(i), 1 << i); } }
pub fn len(&self) -> usize
1.0.0[src]
Returns the number of elements in the vector, also referred to as its 'length'.
Examples
let a = vec![1, 2, 3]; assert_eq!(a.len(), 3);
pub fn is_empty(&self) -> bool
1.0.0[src]
Returns true
if the vector contains no elements.
Examples
let mut v = Vec::new(); assert!(v.is_empty()); v.push(1); assert!(!v.is_empty());
Trait Implementations
impl<T: Clone> Clone for Vec1<T> where
T: Debug,
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T: Debug,
impl<T> Debug for Vec1<T> where
T: Debug,
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T: Debug,
impl<T: Default> Default for Vec1<T> where
T: Debug,
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T: Debug,
impl<T> Deref for Vec1<T> where
T: Debug,
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T: Debug,
impl<'de, T> Deserialize<'de> for Vec1<T> where
T: Debug,
T: Deserialize<'de>,
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T: Debug,
T: Deserialize<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
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__D: Deserializer<'de>,
impl<T: Eq> Eq for Vec1<T> where
T: Debug,
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T: Debug,
impl<T: Hash> Hash for Vec1<T> where
T: Debug,
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T: Debug,
fn hash<__H: Hasher>(&self, state: &mut __H)
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl<T: PartialEq> PartialEq<Vec1<T>> for Vec1<T> where
T: Debug,
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T: Debug,
impl<T> Serialize for Vec1<T> where
T: Debug,
T: Serialize,
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T: Debug,
T: Serialize,
fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
__S: Serializer,
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__S: Serializer,
impl<T> StructuralEq for Vec1<T> where
T: Debug,
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T: Debug,
impl<T> StructuralPartialEq for Vec1<T> where
T: Debug,
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T: Debug,
Auto Trait Implementations
impl<T> RefUnwindSafe for Vec1<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<T> Send for Vec1<T> where
T: Send,
T: Send,
impl<T> Sync for Vec1<T> where
T: Sync,
T: Sync,
impl<T> Unpin for Vec1<T> where
T: Unpin,
T: Unpin,
impl<T> UnwindSafe for Vec1<T> where
T: UnwindSafe,
T: UnwindSafe,
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,
fn borrow_mut(&mut self) -> &mut T
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impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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T: for<'de> Deserialize<'de>,
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<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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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.
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>,
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U: TryFrom<T>,