list

Documentation

Overview

Package list implements a generic doubly linked list. It is re-implementation of https://pkg.go.dev/container/list with generics.

Index

• type Element
  • func (e *Element[T]) Next() *Element[T]
  • func (e *Element[T]) Prev() *Element[T]
• type List
  • func Map[T, U any](l *List[T], f func(v T) U) *List[U]
  • func New[T any]() *List[T]
  • func Zip[T1, T2 any](l1 List[T1], l2 List[T2]) *List[tuples.Tuple2[T1, T2]]
  • func (l *List[T]) Back() *Element[T]
  • func (l *List[T]) Filter(f func(e *Element[T]) bool) *List[T]
  • func (l *List[T]) For(f func(e *Element[T]) error) error
  • func (l *List[T]) Front() *Element[T]
  • func (l *List[T]) Init() *List[T]
  • func (l *List[T]) InsertAfter(v T, mark *Element[T]) *Element[T]
  • func (l *List[T]) InsertBefore(v T, mark *Element[T]) *Element[T]
  • func (l *List[T]) Len() int
  • func (l *List[T]) MoveAfter(e, mark *Element[T])
  • func (l *List[T]) MoveBefore(e, mark *Element[T])
  • func (l *List[T]) MoveToBack(e *Element[T])
  • func (l *List[T]) MoveToFront(e *Element[T])
  • func (l *List[T]) PushBack(v T) *Element[T]
  • func (l *List[T]) PushBackList(other *List[T])
  • func (l *List[T]) PushFront(v T) *Element[T]
  • func (l *List[T]) PushFrontList(other *List[T])
  • func (l *List[T]) Remove(e *Element[T]) T

Types

type Element

type Element[T any] struct {
	Value T
	// contains filtered or unexported fields
}

func (*Element[T]) Next

func (e *Element[T]) Next() *Element[T]

Next returns the next list element or nil.

func (*Element[T]) Prev

func (e *Element[T]) Prev() *Element[T]

Prev returns the previous list element or nil.

type List

type List[T any] struct {
	// contains filtered or unexported fields
}

func Map

func Map[T, U any](l *List[T], f func(v T) U) *List[U]

func New

func New[T any]() *List[T]

New returns an initialized list.

func Zip

func Zip[T1, T2 any](l1 List[T1], l2 List[T2]) *List[tuples.Tuple2[T1, T2]]

Zip returns a list of 2-tuples. The returned lists have the length of the shortest list.

func (*List[T]) Back

func (l *List[T]) Back() *Element[T]

Back returns the last element of list l or nil if the list is empty.

func (*List[T]) Filter

func (l *List[T]) Filter(f func(e *Element[T]) bool) *List[T]

func (*List[T]) For

func (l *List[T]) For(f func(e *Element[T]) error) error

For calls the f for each items in the list. If the f returns an error, For stops the iteration and return the error.

func (*List[T]) Front

func (l *List[T]) Front() *Element[T]

Front returns the first element of list l or nil if the list is empty.

func (*List[T]) Init

func (l *List[T]) Init() *List[T]

Init initializes or clears list l.

func (*List[T]) InsertAfter

func (l *List[T]) InsertAfter(v T, mark *Element[T]) *Element[T]

InsertAfter inserts a new element e with value v immediately after mark and returns e. If mark is not an element of l, the list is not modified. The mark must not be nil.

func (*List[T]) InsertBefore

func (l *List[T]) InsertBefore(v T, mark *Element[T]) *Element[T]

InsertBefore inserts a new element e with value v immediately before mark and returns e. If mark is not an element of l, the list is not modified. The mark must not be nil.

func (*List[T]) Len

func (l *List[T]) Len() int

Len returns the number of elements of list l. The complexity is O(1).

func (*List[T]) MoveAfter

func (l *List[T]) MoveAfter(e, mark *Element[T])

MoveAfter moves element e to its new position after mark. If e or mark is not an element of l, or e == mark, the list is not modified. The element and mark must not be nil.

func (*List[T]) MoveBefore

func (l *List[T]) MoveBefore(e, mark *Element[T])

MoveBefore moves element e to its new position before mark. If e or mark is not an element of l, or e == mark, the list is not modified. The element and mark must not be nil.

func (*List[T]) MoveToBack

func (l *List[T]) MoveToBack(e *Element[T])

MoveToBack moves element e to the back of list l. If e is not an element of l, the list is not modified. The element must not be nil.

func (*List[T]) MoveToFront

func (l *List[T]) MoveToFront(e *Element[T])

MoveToFront moves element e to the front of list l. If e is not an element of l, the list is not modified. The element must not be nil.

func (*List[T]) PushBack

func (l *List[T]) PushBack(v T) *Element[T]

PushBack inserts a new element e with value v at the back of list l and returns e.

func (*List[T]) PushBackList

func (l *List[T]) PushBackList(other *List[T])

PushBackList inserts a copy of another list at the back of list l. The lists l and other may be the same. They must not be nil.

func (*List[T]) PushFront

func (l *List[T]) PushFront(v T) *Element[T]

PushFront inserts a new element e with value v at the front of list l and returns e.

func (*List[T]) PushFrontList

func (l *List[T]) PushFrontList(other *List[T])

PushFrontList inserts a copy of another list at the front of list l. The lists l and other may be the same. They must not be nil.

func (*List[T]) Remove

func (l *List[T]) Remove(e *Element[T]) T

Remove removes e from l if e is an element of list l. It returns the element value e.Value. The element must not be nil.