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fixed generic types for data structures implemented via lists

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This commit is contained in:
milarin 2023-07-10 17:16:41 +02:00
parent f8635b5cf2
commit 0b5f57e0c2
11 changed files with 52 additions and 35 deletions
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0
go.sum Normal file
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5
impl_list_array.go
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@ -30,6 +30,11 @@ func (s *ArrayList[T]) Get(index int) T {
return s.values[index]
}
func (s *ArrayList[T]) Set(index int, value T) {
s.init()
s.values[index] = value
}
func (s *ArrayList[T]) RemoveAt(index int) T {
s.init()
ret := s.values[index]

14
impl_list_linked.go
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@ -1,5 +1,7 @@
package ds
import "fmt"
type LinkedList[T any] struct {
head *linkedListNode[T]
tail *linkedListNode[T]
@ -8,8 +10,8 @@ type LinkedList[T any] struct {
var _ List[int] = &LinkedList[int]{}
func NewLinkedList[T any]() *ArrayList[T] {
return &ArrayList[T]{}
func NewLinkedList[T any]() *LinkedList[T] {
return &LinkedList[T]{}
}
func (l *LinkedList[T]) Add(value T) {
@ -37,6 +39,10 @@ func (l *LinkedList[T]) Get(index int) T {
return l.getNode(index).value
}
func (l *LinkedList[T]) Set(index int, value T) {
l.getNode(index).value = value
}
func (l *LinkedList[T]) RemoveAt(index int) T {
node := l.getNode(index)
@ -79,6 +85,10 @@ func (l *LinkedList[T]) Empty() bool {
}
func (l *LinkedList[T]) getNode(index int) *linkedListNode[T] {
if index < 0 || index > l.length {
panic(fmt.Sprintf("invalid index %d for list with size %d", index, l.Size()))
}
if index == 0 {
return l.head
}

2
impl_queue_array.go
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@ -1,7 +1,7 @@
package ds
type ArrayQueue[T any] struct {
*ListQueue[T]
*ListQueue[T, *ArrayList[T]]
}
var _ Queue[int] = &ArrayQueue[int]{}

2
impl_queue_linked_list.go
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@ -1,7 +1,7 @@
package ds
type LinkedListQueue[T any] struct {
*ListQueue[T]
*ListQueue[T, *LinkedList[T]]
}
var _ Queue[int] = &LinkedListQueue[int]{}

28
impl_queue_list.go
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@ -1,47 +1,47 @@
package ds
type ListQueue[T any] struct {
list List[T]
type ListQueue[T any, L List[T]] struct {
list L
}
var _ Queue[int] = &ListQueue[int]{}
var _ Queue[int] = &ListQueue[int, List[int]]{}
func NewListQueue[T any](list List[T]) *ListQueue[T] {
return &ListQueue[T]{list}
func NewListQueue[T any, L List[T]](list L) *ListQueue[T, L] {
return &ListQueue[T, L]{list}
}
func (s *ListQueue[T]) Enqueue(value T) {
func (s *ListQueue[T, L]) Enqueue(value T) {
s.list.Add(value)
}
func (s *ListQueue[T]) Add(value T) {
func (s *ListQueue[T, L]) Add(value T) {
s.Enqueue(value)
}
func (s *ListQueue[T]) AddAll(values Iterable[T]) {
func (s *ListQueue[T, L]) AddAll(values Iterable[T]) {
values.Each(s.Add)
}
func (s *ListQueue[T]) Dequeue() T {
func (s *ListQueue[T, L]) Dequeue() T {
return s.list.RemoveAt(0)
}
func (s *ListQueue[T]) Peek() T {
func (s *ListQueue[T, L]) Peek() T {
return s.PeekAt(0)
}
func (s *ListQueue[T]) PeekAt(index int) T {
func (s *ListQueue[T, L]) PeekAt(index int) T {
return s.list.Get(index)
}
func (s *ListQueue[T]) Size() int {
func (s *ListQueue[T, L]) Size() int {
return s.list.Size()
}
func (s *ListQueue[T]) Empty() bool {
func (s *ListQueue[T, L]) Empty() bool {
return s.Size() == 0
}
func (s *ListQueue[T]) Clear() {
func (s *ListQueue[T, L]) Clear() {
s.list.Clear()
}

2
impl_stack_array.go
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@ -1,7 +1,7 @@
package ds
type ArrayStack[T any] struct {
*ListStack[T]
*ListStack[T, *ArrayList[T]]
}
var _ Stack[int] = &ArrayStack[int]{}

2
impl_stack_linked_list.go
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@ -1,7 +1,7 @@
package ds
type LinkedListStack[T any] struct {
*ListStack[T]
*ListStack[T, *LinkedList[T]]
}
var _ Stack[int] = &LinkedListStack[int]{}

28
impl_stack_list.go
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@ -1,47 +1,47 @@
package ds
type ListStack[T any] struct {
list List[T]
type ListStack[T any, L List[T]] struct {
list L
}
var _ Stack[int] = &ListStack[int]{}
var _ Stack[int] = &ListStack[int, List[int]]{}
func NewListStack[T any](list List[T]) *ListStack[T] {
return &ListStack[T]{list}
func NewListStack[T any, L List[T]](list L) *ListStack[T, L] {
return &ListStack[T, L]{list}
}
func (s *ListStack[T]) Push(value T) {
func (s *ListStack[T, L]) Push(value T) {
s.list.Add(value)
}
func (s *ListStack[T]) Add(value T) {
func (s *ListStack[T, L]) Add(value T) {
s.Push(value)
}
func (s *ListStack[T]) AddAll(values Iterable[T]) {
func (s *ListStack[T, L]) AddAll(values Iterable[T]) {
values.Each(s.Add)
}
func (s *ListStack[T]) Pop() T {
func (s *ListStack[T, L]) Pop() T {
return s.list.RemoveAt(s.list.Size() - 1)
}
func (s *ListStack[T]) Peek() T {
func (s *ListStack[T, L]) Peek() T {
return s.PeekAt(s.Size() - 1)
}
func (s *ListStack[T]) PeekAt(index int) T {
func (s *ListStack[T, L]) PeekAt(index int) T {
return s.list.Get(index)
}
func (s *ListStack[T]) Size() int {
func (s *ListStack[T, L]) Size() int {
return s.list.Size()
}
func (s *ListStack[T]) Empty() bool {
func (s *ListStack[T, L]) Empty() bool {
return s.Size() == 0
}
func (s *ListStack[T]) Clear() {
func (s *ListStack[T, L]) Clear() {
s.list.Clear()
}

1
int_map.go
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@ -1,2 +1,3 @@
package ds
// TODO

1
interfaces.go
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@ -11,6 +11,7 @@ type Retrievable[T comparable] interface {
type Indexable[K comparable, T any] interface {
Get(index K) T
Set(index K, value T)
}
type IndexedRemovable[K comparable, T any] interface {