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Copy pathCore.lua
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1415 lines (1271 loc) · 29.9 KB
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--[[
Copyright 2017 YANG Huan ([email protected]).
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 setmetatable = setmetatable
local getmetatable = getmetatable
local type = type
local pairs = pairs
local assert = assert
local table = table
local tremove = table.remove
local tconcat = table.concat
local floor = math.floor
local ceil = math.ceil
local error = error
local select = select
local xpcall = xpcall
local rawget = rawget
local rawset = rawset
local rawequal = rawequal
local tostring = tostring
local string = string
local sfind = string.find
local ssub = string.sub
local global = _G
local emptyFn = function() end
local nilFn = function() return nil end
local falseFn = function() return false end
local trueFn = function() return true end
local identityFn = function(x) return x end
local lengthFn = function (t) return #t end
local zeroFn = function() return 0 end
local oneFn = function() return 1 end
local equals = function(x, y) return x == y end
local getCurrent = function(t) return t.current end
local modules = {}
local usings = {}
local classes = {}
local metadatas
local System, Object, ValueType
local function new(cls, ...)
local this = setmetatable({}, cls)
return this, cls.__ctor__(this, ...)
end
local function throw(e, lv)
if e == nil then e = System.NullReferenceException() end
e:traceback(lv)
error(e)
end
local function xpcallErr(e)
if e == nil then
e = System.Exception("script error")
e:traceback()
elseif type(e) == "string" then
if e:find("attempt to index") then
e = System.NullReferenceException()
elseif e:find("attempt to divide by zero") then
e = System.DivideByZeroException()
else
e = System.Exception(e)
end
e:traceback()
end
return e
end
local function try(try, catch, finally)
local ok, status, result = xpcall(try, xpcallErr)
if not ok then
if catch then
if finally then
ok, status, result = xpcall(catch, xpcallErr, status)
else
ok, status, result = true, catch(status)
end
if ok then
if status == 1 then
ok = false
status = result
end
end
end
end
if finally then
finally()
end
if not ok then
error(status)
end
return status, result
end
local function set(className, cls)
local scope = global
local starIndex = 1
while true do
local pos = sfind(className, "[%.+]", starIndex) or 0
local name = ssub(className, starIndex, pos -1)
if pos ~= 0 then
local t = rawget(scope, name)
if t == nil then
if cls then
t = {}
rawset(scope, name, t)
else
return nil
end
end
scope = t
starIndex = pos + 1
else
if cls then
assert(rawget(scope, name) == nil, className)
rawset(scope, name, cls)
return cls
else
return rawget(scope, name)
end
end
end
end
local function multiKey(t, ...)
local n, i, k = select("#", ...), 1
while true do
k = assert(select(i, ...))
if i == n then
break
end
local tk = t[k]
if tk == nil then
tk = {}
t[k] = tk
end
t = tk
i = i + 1
end
return t, k
end
local function genericName(name, ...)
if name:byte(-2) == 95 then
name = ssub(name, 1, -3)
end
local n = select("#", ...)
local t = { name, "`", n, "[" }
local count = 5
local hascomma
for i = 1, n do
local cls = select(i, ...)
if hascomma then
t[count] = ","
count = count + 1
else
hascomma = true
end
t[count] = cls.__name__
count = count + 1
end
t[count] = "]"
return tconcat(t)
end
local enumMetatable = { class = "E", default = zeroFn, __index = false, interface = false }
enumMetatable.__index = enumMetatable
local interfaceMetatable = { class = "I", default = nilFn, __index = false }
interfaceMetatable.__index = interfaceMetatable
local ctorMetatable = { __call = function (ctor, ...) return ctor[1](...) end }
local function applyExtends(cls)
local extends = cls.__inherits__
if extends then
if type(extends) == "function" then
extends = extends(global, cls)
end
cls.__inherits__ = nil
end
return extends
end
local function applyMetadata(cls)
local metadata = cls.__metadata__
if metadata then
if metadatas then
metadatas[#metadatas + 1] = function (global)
cls.__metadata__ = metadata(global)
end
else
cls.__metadata__ = metadata(global)
end
end
end
local function setBase(cls, kind)
cls.__index = cls
cls.__call = new
local ctor = cls.__ctor__
if ctor and type(ctor) == "table" then
setmetatable(ctor, ctorMetatable)
end
local extends = applyExtends(cls)
applyMetadata(cls)
if kind == "S" then
if extends then
cls.interface = extends
end
setmetatable(cls, ValueType)
else
if extends then
local base = extends[1]
if not base then error(cls.__name__ .. "'s base is nil") end
if base.class == "I" then
cls.interface = extends
setmetatable(cls, Object)
else
setmetatable(cls, base)
if #extends > 1 then
tremove(extends, 1)
cls.interface = extends
end
end
else
setmetatable(cls, Object)
end
end
end
local function staticCtorSetBase(cls)
setmetatable(cls, nil)
local t = cls[cls]
for k, v in pairs(t) do
cls[k] = v
end
cls[cls] = nil
local kind = cls.class
cls.class = nil
setBase(cls, kind)
cls:static()
cls.static = nil
end
local staticCtorMetatable = {
__index = function(cls, key)
staticCtorSetBase(cls)
return cls[key]
end,
__newindex = function(cls, key, value)
staticCtorSetBase(cls)
cls[key] = value
end,
__call = function(cls, ...)
staticCtorSetBase(cls)
return new(cls, ...)
end
}
local function setHasStaticCtor(cls, kind)
local name = cls.__name__
cls.__name__ = nil
local t = {}
for k, v in pairs(cls) do
t[k] = v
cls[k] = nil
end
cls[cls] = t
cls.__name__ = name
cls.class = kind
cls.__call = new
cls.__index = cls
setmetatable(cls, staticCtorMetatable)
end
local function defCore(name, kind, cls, generic)
cls = cls or {}
cls.__name__ = name
if not generic then
set(name, cls)
end
if kind == "C" or kind == "S" then
if cls.static == nil then
setBase(cls, kind)
else
setHasStaticCtor(cls, kind)
end
elseif kind == "I" then
local extends = applyExtends(cls)
if extends then
cls.interface = extends
end
applyMetadata(cls)
setmetatable(cls, interfaceMetatable)
elseif kind == "E" then
applyMetadata(cls)
setmetatable(cls, enumMetatable)
else
assert(false, kind)
end
return cls
end
local function def(name, kind, cls, generic)
if type(cls) == "function" then
local mt = {}
local fn = function(_, ...)
local gt, gk = multiKey(mt, ...)
local t = gt[gk]
if t == nil then
t = defCore(genericName(name, ...), kind, cls(...) or {}, true)
if generic then
setmetatable(t, generic)
end
gt[gk] = t
end
return t
end
local base = kind ~= "S" and Object or ValueType
local caller = setmetatable({ __call = fn, __index = base }, base)
if generic then
generic.__index = generic
generic.__call = new
end
return set(name, setmetatable(generic or {}, caller))
else
return defCore(name, kind, cls, generic)
end
end
local function defCls(name, cls, generic)
return def(name, "C", cls, generic)
end
local function defInf(name, cls)
return def(name, "I", cls)
end
local function defStc(name, cls, generic)
return def(name, "S", cls, generic)
end
local function defEnum(name, cls)
return def(name, "E", cls)
end
local function defArray(name, cls, Array, MultiArray)
Array.__index = Array
MultiArray.__index = MultiArray
setmetatable(MultiArray, Array)
local mt = {}
local function create(Array, T)
local ArrayT = mt[T]
if ArrayT == nil then
ArrayT = defCore(T.__name__ .. "[]", "C", cls(T), true)
setmetatable(ArrayT, Array)
mt[T] = ArrayT
end
return ArrayT
end
local mtMulti = {}
local function createMulti(MultiArray, T, dimension)
local gt, gk = multiKey(mtMulti, T, dimension)
local ArrayT = gt[gk]
if ArrayT == nil then
local name = T.__name__ .. "[" .. (","):rep(dimension - 1) .. "]"
ArrayT = defCore(name, "C", cls(T), true)
setmetatable(ArrayT, MultiArray)
gt[gk] = ArrayT
end
return ArrayT
end
return set(name, setmetatable(Array, {
__index = Object,
__call = function (Array, T, dimension)
if not dimension then
return create(Array, T)
else
return createMulti(MultiArray, T, dimension)
end
end
}))
end
local function trunc(num)
return num > 0 and floor(num) or ceil(num)
end
local function when(f, ...)
local ok, r = pcall(f, ...)
return ok and r
end
System = {
emptyFn = emptyFn,
falseFn = falseFn,
trueFn = trueFn,
identityFn = identityFn,
lengthFn = lengthFn,
zeroFn = zeroFn,
oneFn = oneFn,
equals = equals,
getCurrent = getCurrent,
try = try,
when = when,
throw = throw,
getClass = set,
multiKey = multiKey,
define = defCls,
defInf = defInf,
defStc = defStc,
defEnum = defEnum,
defArray = defArray,
enumMetatable = enumMetatable,
trunc = trunc,
global = global,
classes = classes
}
global.System = System
local _, _, version = sfind(_VERSION, "^Lua (.*)$")
version = tonumber(version)
System.luaVersion = version
if version < 5.3 then
local bnot, band, bor, xor, sl, sr
local bit = rawget(global, "bit")
if not bit then
local ok, b = pcall(require, "bit")
if ok then
bit = b
end
end
if bit then
bnot, band, bor, xor, sl, sr = bit.bnot, bit.band, bit.bor, bit.bxor, bit.lshift, bit.rshift
else
local function disable()
throw(System.NotSupportedException("bit operation is not enabled."))
end
bnot, band, bor, xor, sl, sr = disable, disable, disable, disable, disable, disable
end
System.bnot = bnot
System.band = band
System.bor = bor
System.xor = xor
System.sl = sl
System.sr = sr
function System.bnotOfNull(x)
if x == nil then
return nil
end
return bnot(x)
end
function System.bandOfNull(x, y)
if x == nil or y == nil then
return nil
end
return band(x, y)
end
function System.borOfNull(x, y)
if x == nil or y == nil then
return nil
end
return bor(x, y)
end
function System.xorOfNull(x, y)
if x == nil or y == nil then
return nil
end
return xor(x, y)
end
function System.slOfNull(x, y)
if x == nil or y == nil then
return nil
end
return sl(x, y)
end
function System.srOfNull(x, y)
if x == nil or y == nil then
return nil
end
return sr(x, y)
end
function System.div(x, y)
if y == 0 then throw(System.DivideByZeroException(), 1) end
return trunc(x / y)
end
function System.divOfNull(x, y)
if x == nil or y == nil then
return nil
end
if y == 0 then throw(System.DivideByZeroException(), 1) end
return trunc(x / y)
end
function System.mod(x, y)
if y == 0 then throw(System.DivideByZeroException(), 1) end
local v = x % y
if v ~= 0 and x * y < 0 then
return v - y
end
return v
end
function System.toUInt(v, max, mask, checked)
if v >= 0 and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return band(v, mask)
end
function System.ToUInt(v, max, mask, checked)
v = trunc(v)
if v >= 0 and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
if v < -2147483648 or v > 2147483647 then
return 0
end
return band(v, mask)
end
local function toInt(v, mask, umask)
v = band(v, mask)
local uv = band(v, umask)
if uv ~= v then
v = xor(uv - 1, umask)
if uv ~= 0 then
v = -v
end
end
return v
end
function System.toInt(v, min, max, mask, umask, checked)
if v >= min and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return toInt(v, mask, umask)
end
function System.ToInt(v, min, max, mask, umask, checked)
v = trunc(v)
if v >= min and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
if v < -2147483648 or v > 2147483647 then
return 0
end
return toInt(v, mask, umask)
end
local function toUInt32(v)
if v <= -2251799813685248 or v >= 2251799813685248 then -- 2 ^ 51, Lua BitOp used 51 and 52
throw(System.InvalidCastException())
end
v = band(v, 0xffffffff)
local uv = band(v, 0x7fffffff)
if uv ~= v then
return uv + 0x80000000
end
return v
end
function System.toUInt32(v, checked)
if v >= 0 and v <= 4294967295 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return toUInt32(v)
end
function System.ToUInt32(v, checked)
v = trunc(v)
if v >= 0 and v <= 4294967295 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return toUInt32(v)
end
function System.toInt32(v, checked)
if v >= -2147483648 and v <= 2147483647 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
if v <= -2251799813685248 or v >= 2251799813685248 then -- 2 ^ 51, Lua BitOp used 51 and 52
throw(System.InvalidCastException())
end
return band(v, 0xffffffff)
end
function System.toInt64(v, checked)
if v >= -9223372036854775808 and v <= 9223372036854775807 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
throw(System.InvalidCastException()) -- 2 ^ 51, Lua BitOp used 51 and 52
end
function System.toUInt64(v, checked)
if v >= 0 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
if v >= -2147483648 then
return band(v, 0x7fffffff) + 0xffffffff80000000
end
throw(System.InvalidCastException())
end
function System.ToUInt64(v, checked)
v = trunc(v)
if v >= 0 and v <= 18446744073709551615 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
if v >= -2147483648 and v <= 2147483647 then
v = band(v, 0xffffffff)
local uv = band(v, 0x7fffffff)
if uv ~= v then
return uv + 0xffffffff80000000
end
return v
end
throw(System.InvalidCastException())
end
if table.pack == nil then
table.pack = function(...)
return { n = select("#", ...), ... }
end
end
if table.unpack == nil then
table.unpack = assert(unpack)
end
if table.move == nil then
table.move = function(a1, f, e, t, a2)
if a2 == nil then a2 = a1 end
if t > f then
t = e - f + t
while e >= f do
a2[t] = a1[e]
t = t - 1
e = e - 1
end
else
while f <= e do
a2[t] = a1[f]
t = t + 1
f = f + 1
end
end
end
end
else
load[[
local System = System
local throw = System.throw
local trunc = System.trunc
function System.bnot(x) return ~x end
function System.band(x, y) return x & y end
function System.bor(x, y) return x | y end
function System.xor(x, y) return x ~ y end
function System.sl(x, y) return x << y end
function System.sr(x, y) return x >> y end
function System.div(x, y) if x ~ y < 0 then return -(-x // y) end return x // y end
function System.mod(x, y)
local v = x % y
if v ~= 0 and 1.0 * x * y < 0 then
return v - y
end
return v
end
local function toUInt (v, max, mask, checked)
if v >= 0 and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 2)
end
return v & mask
end
System.toUInt = toUInt
function System.ToUInt(v, max, mask, checked)
v = trunc(v)
if v >= 0 and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 2)
end
if v < -2147483648 or v > 2147483647 then
return 0
end
return v & mask
end
local function toSingedInt(v, mask, umask)
v = v & mask
local uv = v & umask
if uv ~= v then
v = (uv - 1) ~ umask
if uv ~= 0 then
v = -v
end
end
return v
end
local function toInt(v, min, max, mask, umask, checked)
if v >= min and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 2)
end
return toSingedInt(v, mask, umask)
end
System.toInt = toInt
function System.ToInt(v, min, max, mask, umask, checked)
v = trunc(v)
if v >= min and v <= max then
return v
end
if checked then
throw(System.OverflowException(), 2)
end
if v < -2147483648 or v > 2147483647 then
return 0
end
return toSingedInt(v, mask, umask)
end
function System.toUInt32(v, checked)
return toUInt(v, 4294967295, 0xffffffff, checked)
end
function System.ToUInt32(v, checked)
v = trunc(v)
if v >= 0 and v <= 4294967295 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return v & 0xffffffff
end
function System.toInt32(v, checked)
return toInt(v, -2147483648, 2147483647, 0xffffffff, 0x7fffffff, checked)
end
function System.toInt64(v, checked)
return toInt(v, -9223372036854775808, 9223372036854775807, 0xffffffffffffffff, 0x7fffffffffffffff, checked)
end
function System.toUInt64(v, checked)
if v >= 0 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return (v & 0x7fffffffffffffff) + 0x8000000000000000
end
function System.ToUInt64(v, checked)
v = trunc(v)
if v >= 0 and v <= 18446744073709551615 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
v = v & 0xffffffffffffffff
local uv = v & 0x7fffffffffffffff
if uv ~= v then
return uv + 0x8000000000000000
end
return v
end
]]()
end
local toUInt = System.toUInt
local toInt = System.toInt
local ToUInt = System.ToUInt
local ToInt = System.ToInt
function System.toByte(v, checked)
return toUInt(v, 255, 0xff, checked)
end
function System.toSByte(v, checked)
return toInt(v, -128, 127, 0xff, 0x7f, checked)
end
function System.toInt16(v, checked)
return toInt(v, -32768, 32767, 0xffff, 0x7fff, checked)
end
function System.toUInt16(v, checked)
return toUInt(v, 65535, 0xffff, checked)
end
function System.ToByte(v, checked)
return ToUInt(v, 255, 0xff, checked)
end
function System.ToSByte(v, checked)
return ToInt(v, -128, 127, 0xff, 0x7f, checked)
end
function System.ToInt16(v, checked)
return ToInt(v, -32768, 32767, 0xffff, 0x7fff, checked)
end
function System.ToUInt16(v, checked)
return ToUInt(v, 65535, 0xffff, checked)
end
function System.ToInt32(v, checked)
v = trunc(v)
if v >= -2147483648 and v <= 2147483647 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return -2147483648
end
function System.ToInt64(v, checked)
v = trunc(v)
if v >= -9223372036854775808 and v <= 9223372036854775807 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
return -9223372036854775808
end
function System.ToSingle(v, checked)
if v >= -3.40282347E+38 and v <= 3.40282347E+38 then
return v
end
if checked then
throw(System.OverflowException(), 1)
end
if v > 0 then
return 1 / 0
else
return -1 / 0
end
end
function System.orOfNull(x, y)
if x == nil or y == nil then
return nil
end
return x or y
end
function System.andOfNull(x, y)
if x == nil or y == nil then
return nil
end
return x and y
end
function System.xorOfBoolNull(x, y)
if x == nil or y == nil then
return nil
end
return x ~= y
end
function System.using(t, f)
local dispose = t and t.Dispose
if dispose ~= nil then
local ok, status, ret = xpcall(f, xpcallErr, t)
dispose(t)
if not ok then
error(status)
end
return status, ret
else
return f(t)
end
end
function System.usingX(f, ...)
local ok, status, ret = xpcall(f, xpcallErr, ...)
for i = 1, select("#", ...) do
local t = select(i, ...)
if t ~= nil then
local dispose = t.Dispose
if dispose ~= nil then
dispose(t)
end
end
end
if not ok then
error(status)
end
return status, ret
end
function System.apply(t, f)
f(t)
return t
end
function System.default(T)
return T:default()
end
function System.property(name)
local function get(this)
return this[name]
end
local function set(this, v)
this[name] = v
end
return get, set
end
function System.event(name)
local function add(this, v)
this[name] = this[name] + v
end
local function remove(this, v)
this[name] = this[name] - v
end
return add, remove
end