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discard """
matrix: "--mm:refc; --mm:orc"
targets: "c js"
"""
import std/[lists, sequtils]
import std/assertions
const
data = [1, 2, 3, 4, 5, 6]
template main =
block SinglyLinkedListTest1:
var L: SinglyLinkedList[int]
for d in items(data): L.prepend(d)
for d in items(data): L.add(d)
doAssert($L == "[6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6]")
doAssert(4 in L)
block SinglyLinkedListTest2:
var L: SinglyLinkedList[string]
for d in items(data): L.prepend($d)
doAssert($L == """["6", "5", "4", "3", "2", "1"]""")
doAssert("4" in L)
block DoublyLinkedListTest1:
var L: DoublyLinkedList[int]
for d in items(data): L.prepend(d)
for d in items(data): L.add(d)
L.remove(L.find(1))
doAssert($L == "[6, 5, 4, 3, 2, 1, 2, 3, 4, 5, 6]")
doAssert(4 in L)
block SinglyLinkedRingTest1:
var L: SinglyLinkedRing[int]
L.prepend(4)
doAssert($L == "[4]")
L.prepend(4)
doAssert($L == "[4, 4]")
doAssert(4 in L)
block DoublyLinkedRingTest1:
var L: DoublyLinkedRing[int]
L.prepend(4)
doAssert($L == "[4]")
L.prepend(4)
doAssert($L == "[4, 4]")
doAssert(4 in L)
L.add(3)
L.add(5)
doAssert($L == "[4, 4, 3, 5]")
L.remove(L.find(3))
L.remove(L.find(5))
L.remove(L.find(4))
L.remove(L.find(4))
doAssert($L == "[]")
doAssert(4 notin L)
block tlistsToString:
block:
var l = initDoublyLinkedList[int]()
l.add(1)
l.add(2)
l.add(3)
doAssert $l == "[1, 2, 3]"
block:
var l = initDoublyLinkedList[string]()
l.add("1")
l.add("2")
l.add("3")
doAssert $l == """["1", "2", "3"]"""
block:
var l = initDoublyLinkedList[char]()
l.add('1')
l.add('2')
l.add('3')
doAssert $l == """['1', '2', '3']"""
# Copied here until it is merged into sequtils
template take(a: untyped, max: int): untyped =
type T = typeof(block: (for ai in a: ai))
var ret: seq[T]
var i = 0
if max > 0:
for ai in a:
ret.add ai
i.inc
if i >= max: break
ret
template testCommon(initList, toList) =
block: # toSinglyLinkedList, toDoublyLinkedList
let l = seq[int].default
doAssert l.toList.toSeq == []
doAssert [1].toList.toSeq == [1]
doAssert [1, 2, 3].toList.toSeq == [1, 2, 3]
block copy:
doAssert array[0, int].default.toList.copy.toSeq == []
doAssert [1].toList.copy.toSeq == [1]
doAssert [1, 2].toList.copy.toSeq == [1, 2]
doAssert [1, 2, 3].toList.copy.toSeq == [1, 2, 3]
type Foo = ref object
x: int
var f0 = Foo(x: 0)
let f1 = Foo(x: 1)
var a = [f0].toList
var b = a.copy
b.add f1
doAssert a.toSeq == [f0]
doAssert b.toSeq == [f0, f1]
f0.x = 42
doAssert a.head.value.x == 42
doAssert b.head.value.x == 42
block: # add, addMoved
block:
var
l0 = initList[int]()
l1 = [1].toList
l2 = [2, 3].toList
l3 = [4, 5, 6].toList
l0.add l3
l1.add l3
l2.addMoved l3
doAssert l0.toSeq == [4, 5, 6]
doAssert l1.toSeq == [1, 4, 5, 6]
doAssert l2.toSeq == [2, 3, 4, 5, 6]
doAssert l3.toSeq == []
l2.add l3 # re-adding l3 that was destroyed is now a no-op
doAssert l2.toSeq == [2, 3, 4, 5, 6]
doAssert l3.toSeq == []
block:
var
l0 = initList[int]()
l1 = [1].toList
l2 = [2, 3].toList
l3 = [4, 5, 6].toList
l3.addMoved l0
l2.addMoved l1
doAssert l3.toSeq == [4, 5, 6]
doAssert l2.toSeq == [2, 3, 1]
l3.add l0
doAssert l3.toSeq == [4, 5, 6]
block:
var c = [0, 1].toList
c.addMoved c
doAssert c.take(6) == [0, 1, 0, 1, 0, 1]
block: # prepend, prependMoved
block:
var
l0 = initList[int]()
l1 = [1].toList
l2 = [2, 3].toList
l3 = [4, 5, 6].toList
l0.prepend l3
l1.prepend l3
doAssert l3.toSeq == [4, 5, 6]
l2.prependMoved l3
doAssert l0.toSeq == [4, 5, 6]
doAssert l1.toSeq == [4, 5, 6, 1]
doAssert l2.toSeq == [4, 5, 6, 2, 3]
doAssert l3.toSeq == []
l2.prepend l3 # re-prepending l3 that was destroyed is now a no-op
doAssert l2.toSeq == [4, 5, 6, 2, 3]
doAssert l3.toSeq == []
block:
var
l0 = initList[int]()
l1 = [1].toList
l2 = [2, 3].toList
l3 = [4, 5, 6].toList
l3.prependMoved l0
l2.prependMoved l1
doAssert l3.toSeq == [4, 5, 6]
doAssert l2.toSeq == [1, 2, 3]
l3.prepend l0
doAssert l3.toSeq == [4, 5, 6]
block:
var c = [0, 1].toList
c.prependMoved c
doAssert c.take(6) == [0, 1, 0, 1, 0, 1]
block remove:
var l = [0, 1, 2, 3].toList
let
l0 = l.head
l1 = l0.next
l2 = l1.next
l3 = l2.next
l.remove l0
doAssert l.toSeq == [1, 2, 3]
l.remove l2
doAssert l.toSeq == [1, 3]
l.remove l2
doAssert l.toSeq == [1, 3]
l.remove l3
doAssert l.toSeq == [1]
l.remove l1
doAssert l.toSeq == []
# Cycle preservation
var a = [10, 11, 12].toList
a.addMoved a
doAssert a.take(6) == @[10, 11, 12, 10, 11, 12]
a.remove a.head.next
doAssert a.take(6) == @[10, 12, 10, 12, 10, 12]
a.remove a.head
doAssert a.take(6) == @[12, 12, 12, 12, 12, 12]
testCommon initSinglyLinkedList, toSinglyLinkedList
testCommon initDoublyLinkedList, toDoublyLinkedList
block remove: # return value check
var l = [0, 1, 2, 3].toSinglyLinkedList
let n = l.head.next.next
doAssert l.remove(n) == true
doAssert l.toSeq == [0, 1, 3]
doAssert l.remove(n) == false
doAssert l.toSeq == [0, 1, 3]
doAssert l.remove(l.head) == true
doAssert l.toSeq == [1, 3]
doAssert l.remove(l.head.next) == true
doAssert l.toSeq == [1]
doAssert l.remove(l.head) == true
doAssert l.toSeq == []
block issue19297: # add (appends a shallow copy)
var a: SinglyLinkedList[int]
var b: SinglyLinkedList[int]
doAssert a.toSeq == @[]
a.add(1)
doAssert a.toSeq == @[1]
a.add(b)
doAssert a.toSeq == @[1]
a.add(2)
doAssert a.toSeq == @[1, 2]
block issue19314: # add (appends a shallow copy)
var a: DoublyLinkedList[int]
var b: DoublyLinkedList[int]
doAssert a.toSeq == @[]
a.add(1)
doAssert a.toSeq == @[1]
a.add(b)
doAssert a.toSeq == @[1]
a.add(2)
doAssert a.toSeq == @[1, 2]
block RemoveLastNodeFromSinglyLinkedList:
var list = initSinglyLinkedList[string]()
let n1 = newSinglyLinkedNode("sonic")
let n2 = newSinglyLinkedNode("the")
let n3 = newSinglyLinkedNode("tiger")
let n4 = newSinglyLinkedNode("hedgehog")
list.add(n1)
list.add(n2)
list.add(n3)
list.remove(n3)
list.add(n4)
doAssert list.toSeq == @["sonic", "the", "hedgehog"]
static: main()
main()
|
