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Copy pathArray.lua
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Copy pathArray.lua
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1010 lines (958 loc) · 26.1 KB
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--[[
Copyright 2017 YANG Huan (sy.yanghuan@gmail.com).
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--]]
local System = System
local define = System.define
local throw = System.throw
local div = System.div
local trueFn = System.trueFn
local falseFn = System.falseFn
local lengthFn = System.lengthFn
local InvalidOperationException = System.InvalidOperationException
local NullReferenceException = System.NullReferenceException
local ArgumentException = System.ArgumentException
local ArgumentNullException = System.ArgumentNullException
local ArgumentOutOfRangeException = System.ArgumentOutOfRangeException
local IndexOutOfRangeException = System.IndexOutOfRangeException
local NotSupportedException = System.NotSupportedException
local EqualityComparer = System.EqualityComparer
local Comparer_1 = System.Comparer_1
local IEnumerator_1 = System.IEnumerator_1
local assert = assert
local select = select
local getmetatable = getmetatable
local setmetatable = setmetatable
local type = type
local table = table
local tinsert = table.insert
local tremove = table.remove
local tmove = table.move
local tsort = table.sort
local null = {}
local arrayEnumerator
local arrayFromTable
local function throwFailedVersion()
throw(InvalidOperationException("Collection was modified; enumeration operation may not execute."))
end
local function checkIndex(t, index)
if index < 0 or index >= #t then
throw(ArgumentOutOfRangeException("index"))
end
end
local function checkIndexAndCount(t, index, count)
if t == nil then throw(ArgumentNullException("array")) end
if index < 0 or count < 0 or index + count > #t then
throw(ArgumentOutOfRangeException("index or count"))
end
end
local function wrap(v)
if v == nil then
return null
end
return v
end
local function unWrap(v)
if v == null then
return nil
end
return v
end
local function ipairs(t)
local version = t.version
return function (t, i)
if version ~= t.version then
throwFailedVersion()
end
local v = t[i]
if v ~= nil then
if v == null then
v = nil
end
return i + 1, v
end
end, t, 1
end
local function eachFn(en)
if en:MoveNext() then
return true, en:getCurrent()
end
return nil
end
local function each(t)
if t == nil then throw(NullReferenceException(), 1) end
local getEnumerator = t.GetEnumerator
if getEnumerator == arrayEnumerator then
return ipairs(t)
end
local en = getEnumerator(t)
return eachFn, en
end
function System.isArrayLike(t)
return t.GetEnumerator == arrayEnumerator
end
function System.isEnumerableLike(t)
return type(t) == "table" and t.GetEnumerator ~= nil
end
function System.toLuaTable(array)
local t = {}
for i = 1, #array do
local item = array[i]
if item ~= null then
t[i] = item
end
end
return t
end
System.null = null
System.Void = null
System.each = each
System.ipairs = ipairs
System.throwFailedVersion = throwFailedVersion
System.wrap = wrap
System.unWrap = unWrap
System.checkIndex = checkIndex
System.checkIndexAndCount = checkIndexAndCount
local Array
local emptys = {}
local function get(t, index)
local v = t[index + 1]
if v == nil then
throw(ArgumentOutOfRangeException("index"))
end
if v ~= null then
return v
end
end
local function set(t, index, v)
index = index + 1
if t[index] == nil then
throw(ArgumentOutOfRangeException("index"))
end
t[index] = v == nil and null or v
t.version = t.version + 1
end
local function addRange(t, collection)
if collection == nil then throw(ArgumentNullException("collection")) end
local count = #t + 1
if collection.GetEnumerator == arrayEnumerator then
tmove(collection, 1, #collection, count, t)
else
for _, v in each(collection) do
t[count] = v == nil and null or v
count = count + 1
end
end
t.version = t.version + 1
end
local function unset()
throw(NotSupportedException("Collection is read-only."))
end
local function fill(t, f, e, v)
while f <= e do
t[f] = v
f = f + 1
end
end
local function buildArray(T, len, t)
if t == nil then
t = {}
if len > 0 then
local default = T.__genericT__:default()
if default == nil then default = null end
fill(t, 1, len, default)
end
else
if len > 0 then
local default = T.__genericT__:default()
if default == nil then
for i = 1, len do
if t[i] == nil then
t[i] = null
end
end
end
end
end
return setmetatable(t, T)
end
local function indexOf(t, v, startIndex, count)
if t == nil then throw(ArgumentNullException("array")) end
local len = #t
if not startIndex then
startIndex, count = 0, len
elseif not count then
if startIndex < 0 or startIndex > len then
throw(ArgumentOutOfRangeException("startIndex"))
end
count = len - startIndex
else
if startIndex < 0 or startIndex > len then
throw(ArgumentOutOfRangeException("startIndex"))
end
if count < 0 or count > len - startIndex then
throw(ArgumentOutOfRangeException("count"))
end
end
local comparer = EqualityComparer(t.__genericT__).getDefault()
local equals = comparer.EqualsOf
for i = startIndex + 1, startIndex + count do
local item = t[i]
if item == null then item = nil end
if equals(comparer, item, v) then
return i - 1
end
end
return -1
end
local function findIndex(t, startIndex, count, match)
if t == nil then throw(ArgumentNullException("array")) end
local len = #t
if not count then
startIndex, count, match = 0, len, startIndex
elseif not match then
if startIndex < 0 or startIndex > len then
throw(ArgumentOutOfRangeException("startIndex"))
end
count, match = len - startIndex, count
else
if startIndex < 0 or startIndex > len then
throw(ArgumentOutOfRangeException("startIndex"))
end
if count < 0 or count > len - startIndex then
throw(ArgumentOutOfRangeException("count"))
end
end
if match == nil then throw(ArgumentNullException("match")) end
local endIndex = startIndex + count
for i = startIndex + 1, endIndex do
local item = t[i]
if item == null then item = nil end
if match(item) then
return i - 1
end
end
return -1
end
local function copy(sourceArray, sourceIndex, destinationArray, destinationIndex, length, reliable)
if not reliable then
checkIndexAndCount(sourceArray, sourceIndex, length)
checkIndexAndCount(destinationArray, destinationIndex, length)
end
tmove(sourceArray, sourceIndex + 1, sourceIndex + length, destinationIndex + 1, destinationArray)
end
local function removeRange(t, index, count)
if count < 0 or index > #t - count then
throw(ArgumentOutOfRangeException("index or count"))
end
if count > 0 then
local size = #t - count
if index < size then
copy(t, index + count, t, index, size - index)
end
for i = size + 1, size + count do
t[i] = nil
end
t.version = t.version + 1
end
end
local function findAll(t, match)
if t == nil then throw(ArgumentNullException("array")) end
if match == nil then throw(ArgumentNullException("match")) end
local list = {}
local count = 1
for i = 1, #t do
local item = t[i]
if (item == null and match(nil)) or match(item) then
list[count] = item
count = count + 1
end
end
return list
end
local function getComp(t, comparer)
local compare
if comparer then
local Compare = comparer.Compare
if Compare then
compare = function (x, y) return Compare(comparer, x, y) end
else
compare = comparer
end
else
comparer = Comparer_1(t.__genericT__).getDefault()
local Compare = comparer.Compare
compare = function (x, y) return Compare(comparer, x, y) end
end
return function(x, y)
if x == null then x = nil end
if y == null then y = nil end
return compare(x, y) < 0
end
end
local function sort(t, comparer)
if #t > 1 then
tsort(t, getComp(t, comparer))
t.version = t.version + 1
end
end
local ArrayEnumerator = define("System.ArrayEnumerator", function (T)
return {
__inherits__ = { IEnumerator_1(T) }
}
end, {
getCurrent = System.getCurrent,
Dispose = System.emptyFn,
Reset = function (this)
this.index = 1
this.current = nil
end,
MoveNext = function (this)
local t = this.list
if this.version ~= t.version then
throwFailedVersion()
end
local index = this.index
local v = t[index]
if v ~= nil then
if v == null then
this.current = nil
else
this.current = v
end
this.index = index + 1
return true
end
this.current = nil
return false
end
})
arrayEnumerator = function (t, T)
if not T then T = t.__genericT__ end
return setmetatable({ list = t, index = 1, version = t.version, currnet = T:default() }, ArrayEnumerator(T))
end
local ArrayReverseEnumerator = define("System.ArrayReverseEnumerator", function (T)
return {
__inherits__ = { IEnumerator_1(T) }
}
end, {
getCurrent = System.getCurrent,
Dispose = System.emptyFn,
Reset = function (this)
this.index = #this.list
this.current = nil
end,
MoveNext = function (this)
local t = this.list
if this.version ~= t.version then
throwFailedVersion()
end
local index = this.index
local v = t[index]
if v ~= nil then
if v == null then
this.current = nil
else
this.current = v
end
this.index = index - 1
return true
end
this.current = nil
return false
end
})
local function reverseEnumerator(t)
local T = t.__genericT__
return setmetatable({ list = t, index = #t, version = t.version, currnet = T:default() }, ArrayReverseEnumerator(T))
end
local function checkArrayIndex(index1, index2)
if index2 then
throw(ArgumentException("Indices length does not match the array rank."))
elseif type(index1) == "table" then
if #index1 ~= 1 then
throw(ArgumentException("Indices length does not match the array rank."))
else
index1 = index1[1]
end
end
return index1
end
Array = {
version = 0,
new = buildArray,
set = set,
get = get,
ctorList = function (t, ...)
local len = select("#", ...)
if len == 0 then return end
local collection = ...
if type(collection) == "number" then return end
addRange(t, collection)
end,
add = function (t, v)
t[#t + 1] = v == nil and null or v
t.version = t.version + 1
end,
addRange = addRange,
AsReadOnly = function (t)
return System.ReadOnlyCollection(t.__genericT__)(t)
end,
clear = function (t)
local size = #t
if size > 0 then
for i = 1, size do
t[i] = nil
end
t.version = t.version + 1
end
end,
findAll = function (t, match)
return setmetatable(findAll(t, match), System.List(t.__genericT__))
end,
first = function (t)
if #t == 0 then throw(InvalidOperationException()) end
local v = t[1]
if v ~= null then
return v
end
end,
insert = function (t, index, v)
if index < 0 or index > #t then
throw(ArgumentOutOfRangeException("index"))
end
tinsert(t, index + 1, v == nil and null or v)
t.version = t.version + 1
end,
insertRange = function (t, index, collection)
if collection == nil then throw(ArgumentNullException("collection")) end
local len = #t
if index < 0 or index > len then
throw(ArgumentOutOfRangeException("index"))
end
if t.GetEnumerator == arrayEnumerator then
local count = #collection
if count > 0 then
if index < len then
tmove(t, index + 1, len, index + 1 + count, t)
end
if t == collection then
tmove(t, 1, index, index + 1, t)
tmove(t, index + 1 + count, count * 2, index * 2 + 1, t)
else
tmove(collection, 1, count, index + 1, t)
end
end
else
for _, v in each(collection) do
index = index + 1
tinsert(t, index, v == nil and null or v)
end
end
t.version = t.version + 1
end,
last = function (t)
local n = #t
if n == 0 then throw(InvalidOperationException()) end
local v = t[n]
if v ~= null then
return v
end
end,
popFirst = function (t)
if #t == 0 then throw(InvalidOperationException()) end
local v = t[1]
tremove(t, 1)
t.version = t.version + 1
if v ~= null then
return v
end
end,
popLast = function (t)
local n = #t
if n == 0 then throw(InvalidOperationException()) end
local v = t[n]
t[n] = nil
if v ~= null then
return v
end
end,
removeRange = removeRange,
remove = function (t, v)
local index = indexOf(t, v)
if index >= 0 then
tremove(t, index + 1)
t.version = t.version + 1
return true
end
return false
end,
removeAll = function (t, match)
if match == nil then throw(ArgumentNullException("match")) end
local size = #t
local freeIndex = 1
while freeIndex <= size do
local item = t[freeIndex]
if item == null then item = nil end
if match(item) then
break
end
freeIndex = freeIndex + 1
end
if freeIndex > size then return 0 end
local current = freeIndex + 1
while current <= size do
while current <= size do
local item = t[current]
if item == null then item = nil end
if not match(item) then
break
end
current = current + 1
end
if current <= size then
t[freeIndex] = t[current]
freeIndex = freeIndex + 1
current = current + 1
end
end
freeIndex = freeIndex -1
local count = size - freeIndex
removeRange(t, freeIndex, count)
return count
end,
removeAt = function (t, index)
local v = tremove(t, index + 1)
if v == nil then
throw(ArgumentOutOfRangeException("index"))
end
t.version = t.version + 1
end,
getRange = function (t, index, count)
if count < 0 or index > #t - count then
throw(ArgumentOutOfRangeException("index or count"))
end
local list = {}
tmove(t, index + 1, index + count, 1, list)
return setmetatable(list, System.List(t.__genericT__))
end,
reverseEnumerator = function (t)
return setmetatable({ list = t, index = #t, version = t.version }, ArrayReverseEnumerator)
end,
getCount = lengthFn,
getSyncRoot = System.identityFn,
getLongLength = lengthFn,
getLength = lengthFn,
getIsSynchronized = falseFn,
getIsReadOnly = falseFn,
getIsFixedSize = trueFn,
getRank = System.oneFn,
BinarySearch = function (t, ...)
if t == nil then throw(ArgumentNullException("array")) end
local len = #t
local index, count, v, comparer
local n = select("#", ...)
if n == 1 or n == 2 then
index, count, v, comparer = 0, len, ...
else
index, count, v, comparer = ...
end
checkIndexAndCount(t, index, count)
local compare
if comparer == nil then
comparer = Comparer_1(t.__genericT__).getDefault()
compare = comparer.Compare
else
compare = comparer.Compare
end
local lo = index
local hi = index + count - 1
while lo <= hi do
local i = lo + div(hi - lo, 2)
local item = t[i + 1]
if item == null then item = nil end
local order = compare(comparer, item, v);
if order == 0 then return i end
if order < 0 then
lo = i + 1
else
hi = i - 1
end
end
return -1
end,
Clear = unset,
ClearArray = function (t, index, length)
checkIndexAndCount(t, index, length)
local default = t.__genericT__:default()
if default == nil then default = null end
fill(t, index + 1, index + length, default)
end,
Contains = function (t, v)
return indexOf(t, v) ~= -1
end,
Copy = function (t, ...)
local len = select("#", ...)
if len == 2 then
local array, length = ...
copy(t, 0, array, 0, length)
else
copy(t, ...)
end
end,
CreateInstance = function (elementType, length)
return buildArray(Array(elementType[1]), length)
end,
Empty = function (T)
local t = emptys[T]
if t == nil then
t = Array(T)()
emptys[T] = t
end
return t
end,
Exists = function (t, match)
return findIndex(t, match) ~= -1
end,
Fill = function (t, value, startIndex, count)
if t == nil then throw(ArgumentNullException("array")) end
local len = #t
if not startIndex then
startIndex, count = 0, len
else
if startIndex < 0 or startIndex > len then
throw(ArgumentOutOfRangeException("startIndex"))
end
if count < 0 or count > len - startIndex then
throw(ArgumentOutOfRangeException("count"))
end
end
fill(t, startIndex + 1, startIndex + count, value)
end,
Find = function (t, match)
if t == nil then throw(ArgumentNullException("array")) end
if match == nil then throw(ArgumentNullException("match")) end
for i = 1, #t do
local item = t[i]
if item == null then item = nil end
if match(item) then
return item
end
end
return t.__genericT__:default()
end,
FindAll = function (t, match)
return setmetatable(findAll(t, match), Array(t.__genericT__))
end,
FindIndex = findIndex,
FindLast = function (t, match)
if t == nil then throw(ArgumentNullException("array")) end
if match == nil then throw(ArgumentNullException("match")) end
for i = #t, 1, -1 do
local item = t[i]
if item == null then item = nil end
if match(item) then
return item
end
end
return t.__genericT__:default()
end,
FindLastIndex = function (t, startIndex, count, match)
if t == nil then throw(ArgumentNullException("array")) end
local len = #t
if not count then
startIndex, count, match = len - 1, len, startIndex
elseif not match then
count, match = startIndex + 1, count
end
if match == nil then throw(ArgumentNullException("match")) end
if count < 0 or startIndex - count + 1 < 0 then
throw(ArgumentOutOfRangeException("count"))
end
local endIndex = startIndex - count
for i = startIndex + 1, endIndex + 1, -1 do
local item = t[i]
if item == null then
item = nil
end
if match(item) then
return i - 1
end
end
return -1
end,
ForEach = function (t, action)
if action == nil then throw(ArgumentNullException("action")) end
local version = t.version
for i = 1, #t do
if version ~= t.version then
throwFailedVersion()
end
local item = t[i]
if item == null then item = nil end
action(item)
end
end,
IndexOf = indexOf,
LastIndexOf = function (t, value, startIndex, count)
if t == nil then throw(ArgumentNullException("array")) end
local len = #t
if not startIndex then
startIndex, count = len - 1, len
elseif not count then
count = len == 0 and 0 or (startIndex + 1)
end
if len == 0 then
if startIndex ~= -1 and startIndex ~= 0 then
throw(ArgumentOutOfRangeException("startIndex"))
end
if count ~= 0 then
throw(ArgumentOutOfRangeException("count"))
end
end
if startIndex < 0 or startIndex >= len then
throw(ArgumentOutOfRangeException("startIndex"))
end
if count < 0 or startIndex - count + 1 < 0 then
throw(ArgumentOutOfRangeException("count"))
end
local comparer = EqualityComparer(t.__genericT__).getDefault()
local equals = comparer.EqualsOf
local endIndex = startIndex - count
for i = startIndex + 1, endIndex + 1, -1 do
local item = t[i]
if item == null then item = nil end
if equals(comparer, item, value) then
return i - 1
end
end
return -1
end,
Resize = function (t, newSize, T)
if newSize < 0 then throw(ArgumentOutOfRangeException("newSize")) end
if t == nil then
return buildArray(Array(T), newSize)
end
local len = #t
if len > newSize then
fill(t, newSize + 1, len, nil)
elseif len < newSize then
local default = t.__genericT__:default()
if default == nil then default = null end
fill(t, len + 1, newSize, default)
end
return t
end,
Reverse = function (t, index, count)
if not index then
index = 0
count = #t
else
if count < 0 or index > #t - count then
throw(ArgumentOutOfRangeException("index or count"))
end
end
local i, j = index + 1, index + count
while i <= j do
t[i], t[j] = t[j], t[i]
i = i + 1
j = j - 1
end
t.version = t.version + 1
end,
Sort = function (t, ...)
if t == nil then throw(ArgumentNullException("array")) end
local len = select("#", ...)
if len == 0 then
sort(t)
elseif len == 1 then
local comparer = ...
sort(t, comparer)
else
local index, count, comparer = ...
if count > 1 then
local comp = getComp(t, comparer)
if index == 0 and count == #t then
tsort(t, comp)
else
checkIndexAndCount(t, index, count)
local arr = {}
tmove(t, index + 1, index + count, 1, arr)
tsort(arr, comp)
tmove(arr, 1, count, index + 1, t)
end
t.version = t.version + 1
end
end
end,
toArray = function (t)
local array = {}
if t.GetEnumerator == arrayEnumerator then
tmove(t, 1, #t, 1, array)
else
local count = 1
for _, v in each(t) do
array[count] = v == nil and null or v
count = count + 1
end
end
return arrayFromTable(array, t.__genericT__)
end,
TrueForAll = function (t, match)
if t == nil then throw(ArgumentNullException("array")) end
if match == nil then throw(ArgumentNullException("match")) end
for i = 1, #t do
local item = t[i]
if item == null then item = nil end
if not match(item) then
return false
end
end
return true
end,
Clone = function (this)
local t = setmetatable({}, getmetatable(this))
tmove(this, 1, #this, 1, t)
return t
end,
CopyTo = function (this, array, index)
if array == nil then throw(ArgumentNullException("array")) end
copy(this, 0, array, index or 0, #this)
end,
GetEnumerator = arrayEnumerator,
GetLength = function (this, dimension)
if dimension ~= 0 then throw(IndexOutOfRangeException()) end
return #this
end,
GetLowerBound = function (this, dimension)
if dimension ~= 0 then throw(IndexOutOfRangeException()) end
return 0
end,
GetUpperBound = function (this, dimension)
if dimension ~= 0 then throw(IndexOutOfRangeException()) end
return #this - 1
end,
GetValue = function (this, index1, index2)
return get(this, checkArrayIndex(index1, index2))
end,
SetValue = function (this, value, index1, index2)
set(this, checkArrayIndex(index1, index2), System.castWithNullable(this.__genericT__, value))
end
}
function Array.__call(T, ...)
return buildArray(T, select("#", ...), { ... })
end
function System.arrayFromList(t)
return setmetatable(t, Array(t.__genericT__))
end
arrayFromTable = function (t, T, readOnly)
assert(T)
local array = setmetatable(t, Array(T))
if readOnly then
array.set = unset
end
return array
end
System.arrayFromTable = arrayFromTable
local function getIndex(t, ...)
local rank = t.__rank__
local id = 0
local len = #rank
for i = 1, len do
id = id * rank[i] + select(i, ...)
end
return id, len
end
local function checkMultiArrayIndex(t, index1, ...)
local rank = t.__rank__
local len = #rank
if type(index1) == "table" then
if #index1 ~= len then
throw(ArgumentException("Indices length does not match the array rank."))
end
local id = 0
for i = 1, len do
id = id * rank[i] + index1[i]
end
return id
elseif len ~= select("#", ...) + 1 then
throw(ArgumentException("Indices length does not match the array rank."))
end
return getIndex(t, index1, ...)
end
local MultiArray = {
set = function (this, ...)
local index, len = getIndex(this, ...)
set(this, index, select(len + 1, ...))
end,
get = function (this, ...)
local index = getIndex(this, ...)
return get(this, index)
end,
getRank = function (this)
return #this.__rank__
end,
GetLength = function (this, dimension)
local rank = this.__rank__
if dimension < 0 or dimension >= #rank then throw(IndexOutOfRangeException()) end
return rank[dimension + 1]
end,
GetLowerBound = function (this, dimension)
local rank = this.__rank__
if dimension < 0 or dimension >= #rank then throw(IndexOutOfRangeException()) end
return 0
end,
GetUpperBound = function (this, dimension)
local rank = this.__rank__
if dimension < 0 or dimension >= #rank then throw(IndexOutOfRangeException()) end
return #rank - 1
end,
GetValue = function (this, ...)
return get(this, checkMultiArrayIndex(this, ...))
end,
SetValue = function (this, value, ...)
set(this, checkMultiArrayIndex(this, ...), System.castWithNullable(this.__genericT__, value))
end
}
function MultiArray.__call(T, rank, t)
local len = 1
for i = 1, #rank do
len = len * rank[i]
end
t = buildArray(T, len, t)
t.__rank__ = rank
return t
end
System.defArray("System.Array", function(T)
return {
__inherits__ = { System.IList_1(T), System.IReadOnlyList_1(T), System.IList },
__genericT__ = T
}
end, Array, MultiArray)
local ReadOnlyCollection = {
version = 0,
__ctor__ = Array.ctorList,
getCount = lengthFn,
get = get,
Contains = Array.Contains,
GetEnumerator = arrayEnumerator,
getIsSynchronized = falseFn,
getIsReadOnly = trueFn,
getIsFixedSize = trueFn,