1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114

/// See [`retain`](Retain::retain) for more information.
pub trait Retain {
  /// Function
  type Fn;
  /// Output
  type Output;

  /// Retains only the elements specified by the `F` predicate.
  fn retain(&mut self, input: Self::Fn) -> Self::Output;
}

/// ```rust
/// let mut structure = cl_traits::doc_tests::vec();
/// cl_traits::Retain::retain(&mut structure, |n| n % 2 == 0);
/// assert_eq!(&structure, &[2]);
/// ```
#[cfg(feature = "alloc")]
impl<T> Retain for alloc::vec::Vec<T> {
  type Fn = fn(&T) -> bool;
  type Output = ();

  fn retain(&mut self, input: Self::Fn) {
    self.retain(input)
  }
}

/// ```rust
/// let mut structure = cl_traits::doc_tests::array_vec();
/// cl_traits::Retain::retain(&mut structure, |n| n % 2 == 0);
/// assert_eq!(&structure[..], &[2]);
/// ```
#[cfg(feature = "with-arrayvec")]
impl<A> Retain for arrayvec::ArrayVec<crate::ArrayWrapper<A>>
where
  A: crate::Array,
{
  type Fn = fn(&A::Item) -> bool;
  type Output = ();

  fn retain(&mut self, input: Self::Fn) {
    self.retain(|i| input(i))
  }
}

/// ```rust
/// let mut structure = cl_traits::doc_tests::small_vec();
/// cl_traits::Retain::retain(&mut structure, |n| n % 2 == 0);
/// assert_eq!(&structure[..], &[2]);
/// ```
#[cfg(feature = "with-smallvec")]
impl<A> Retain for smallvec::SmallVec<crate::ArrayWrapper<A>>
where
  A: crate::Array,
{
  type Fn = fn(&A::Item) -> bool;
  type Output = ();

  fn retain(&mut self, input: Self::Fn) {
    self.retain(|i| input(i))
  }
}

/// ```rust
/// let mut structure = cl_traits::doc_tests::static_vec();
/// cl_traits::Retain::retain(&mut structure, |n| n % 2 == 0);
/// assert_eq!(&structure[..], &[2]);
/// ```
#[cfg(feature = "with-staticvec")]
impl<T, const N: usize> Retain for staticvec::StaticVec<T, N> {
  type Fn = fn(&T) -> bool;
  type Output = ();

  fn retain(&mut self, input: Self::Fn) {
    self.retain(input)
  }
}

/// ```rust
/// let mut structure = cl_traits::doc_tests::tiny_vec_array_vec();
/// cl_traits::Retain::retain(&mut structure, |n| n % 2 == 0);
/// assert_eq!(&structure[..], &[2]);
/// ```
#[cfg(feature = "with-tinyvec")]
impl<A> Retain for tinyvec::ArrayVec<crate::ArrayWrapper<A>>
where
  A: crate::Array,
  A::Item: Default,
{
  type Fn = fn(&A::Item) -> bool;
  type Output = ();

  fn retain(&mut self, input: Self::Fn) {
    self.retain(input)
  }
}

/// ```rust
/// let mut structure = cl_traits::doc_tests::tiny_vec();
/// cl_traits::Retain::retain(&mut structure, |n| n % 2 == 0);
/// assert_eq!(&structure[..], &[2]);
/// ```
#[cfg(all(feature = "alloc", feature = "with-tinyvec"))]
impl<A> Retain for tinyvec::TinyVec<crate::ArrayWrapper<A>>
where
  A: crate::Array,
  A::Item: Default,
{
  type Fn = fn(&A::Item) -> bool;
  type Output = ();

  fn retain(&mut self, input: Self::Fn) {
    self.retain(input)
  }
}