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420 lines (374 loc) · 9.59 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 throw = System.throw
local define = System.defStc
local equals = System.equals
local zeroFn = System.zeroFn
local hash = System.hash
local debugsetmetatable = System.debugsetmetatable
local IComparable = System.IComparable
local IComparable_1 = System.IComparable_1
local IEquatable_1 = System.IEquatable_1
local IConvertible = System.IConvertible
local IFormattable = System.IFormattable
local ArgumentException = System.ArgumentException
local ArgumentNullException = System.ArgumentNullException
local FormatException = System.FormatException
local OverflowException = System.OverflowException
local type = type
local tonumber = tonumber
local floor = math.floor
local setmetatable = setmetatable
local tostring = tostring
local function hexForamt(x, n)
return n == "" and "%" .. x or "%0" .. n .. x
end
local function floatForamt(x, n)
return n == "" and "%.f" or "%." .. n .. 'f'
end
local function integerFormat(x, n)
return n == "" and "%d" or "%0" .. n .. 'd'
end
local function exponentialFormat(x, n)
return n == "" and "%" .. x or "%." .. n .. x
end
local formats = {
['x'] = hexForamt,
['X'] = hexForamt,
['f'] = floatForamt,
['F'] = floatForamt,
['d'] = integerFormat,
['D'] = integerFormat,
['e'] = exponentialFormat,
['E'] = exponentialFormat
}
local function toStringWithFormat(this, format)
if #format ~= 0 then
local i, j, x, n = format:find("^%s*([xXdDfFeE])(%d?)%s*$")
if i then
local f = formats[x]
if f then
format = f(x, n)
end
return format:format(this)
end
end
return tostring(this)
end
local function toString(this, format)
if format then
return toStringWithFormat(this, format)
end
return tostring(this)
end
local function compareInt(this, v)
if this < v then return -1 end
if this > v then return 1 end
return 0
end
local function inherits(_, T)
return { IComparable, IComparable_1(T), IEquatable_1(T), IConvertible, IFormattable }
end
local Int = define("System.Int", {
base = inherits,
default = zeroFn,
CompareTo = compareInt,
Equals = equals,
ToString = toString,
GetHashCode = hash,
CompareToObj = function (this, v)
if v == nil then return 1 end
if type(v) ~= "number" then
throw(ArgumentException("Arg_MustBeInt"))
end
return compareInt(this, v)
end,
EqualsObj = function (this, v)
if type(v) ~= "number" then
return false
end
return this == v
end
})
Int.__call = zeroFn
local function parseInt(s, min, max)
if s == nil then
return nil, 1
end
local v = tonumber(s)
if v == nil or v ~= floor(v) then
return nil, 2
end
if v < min or v > max then
return nil, 3
end
return v
end
local function tryParseInt(s, min, max)
local v = parseInt(s, min, max)
if v then
return true, v
end
return false, 0
end
local function parseIntWithException(s, min, max)
local v, err = parseInt(s, min, max)
if v then
return v
end
if err == 1 then
throw(ArgumentNullException())
elseif err == 2 then
throw(FormatException())
else
throw(OverflowException())
end
end
local SByte = define("System.SByte", {
Parse = function (s)
return parseIntWithException(s, -128, 127)
end,
TryParse = function (s)
return tryParseInt(s, -128, 127)
end
})
setmetatable(SByte, Int)
local Byte = define("System.Byte", {
Parse = function (s)
return parseIntWithException(s, 0, 255)
end,
TryParse = function (s)
return tryParseInt(s, 0, 255)
end
})
setmetatable(Byte, Int)
local Int16 = define("System.Int16", {
Parse = function (s)
return parseIntWithException(s, -32768, 32767)
end,
TryParse = function (s)
return tryParseInt(s, -32768, 32767)
end
})
setmetatable(Int16, Int)
local UInt16 = define("System.UInt16", {
Parse = function (s)
return parseIntWithException(s, 0, 65535)
end,
TryParse = function (s)
return tryParseInt(s, 0, 65535)
end
})
setmetatable(UInt16, Int)
local Int32 = define("System.Int32", {
Parse = function (s)
return parseIntWithException(s, -2147483648, 2147483647)
end,
TryParse = function (s)
return tryParseInt(s, -2147483648, 2147483647)
end
})
setmetatable(Int32, Int)
local UInt32 = define("System.UInt32", {
Parse = function (s)
return parseIntWithException(s, 0, 4294967295)
end,
TryParse = function (s)
return tryParseInt(s, 0, 4294967295)
end
})
setmetatable(UInt32, Int)
local Int64 = define("System.Int64", {
Parse = function (s)
return parseIntWithException(s, (-9223372036854775807 - 1), 9223372036854775807)
end,
TryParse = function (s)
return tryParseInt(s, (-9223372036854775807 - 1), 9223372036854775807)
end
})
setmetatable(Int64, Int)
local UInt64 = define("System.UInt64", {
Parse = function (s)
return parseIntWithException(s, 0, 18446744073709551615.0)
end,
TryParse = function (s)
return tryParseInt(s, 0, 18446744073709551615.0)
end
})
setmetatable(UInt64, Int)
local nan = 0 / 0
local posInf = 1 / 0
local negInf = - 1 / 0
--http://lua-users.org/wiki/InfAndNanComparisons
local function isNaN(v)
return v ~= v
end
local function compareDouble(this, v)
if this < v then return -1 end
if this > v then return 1 end
if this == v then return 0 end
if isNaN(this) then
return isNaN(v) and 0 or -1
else
return 1
end
end
local function equalsDouble(this, v)
if this == v then return true end
return isNaN(this) and isNaN(v)
end
local function equalsObj(this, v)
if type(v) ~= "number" then
return false
end
return equalsDouble(this, v)
end
local Number = define("System.Number", {
base = inherits,
default = zeroFn,
CompareTo = compareDouble,
Equals = equalsDouble,
ToString = toString,
NaN = nan,
IsNaN = isNaN,
NegativeInfinity = negInf,
PositiveInfinity = posInf,
EqualsObj = equalsObj,
GetHashCode = hash,
CompareToObj = function (this, v)
if v == nil then return 1 end
if type(v) ~= "number" then
throw(ArgumentException("Arg_MustBeNumber"))
end
return compareDouble(this, v)
end,
IsFinite = function (v)
return v ~= posInf and v ~= negInf and not isNaN(v)
end,
IsInfinity = function (v)
return v == posInf or v == negInf
end,
IsNegativeInfinity = function (v)
return v == negInf
end,
IsPositiveInfinity = function (v)
return v == posInf
end
})
Number.__call = zeroFn
if debugsetmetatable then
debugsetmetatable(0, Number)
end
local function parseDouble(s)
if s == nil then
return nil, 1
end
local v = tonumber(s)
if v == nil then
return nil, 2
end
return v
end
local function parseDoubleWithException(s)
local v, err = parseDouble(s)
if v then
return v
end
if err == 1 then
throw(ArgumentNullException())
else
throw(FormatException())
end
end
local Single = define("System.Single", {
Parse = function (s)
local v = parseDoubleWithException(s)
if v < -3.40282347E+38 or v > 3.40282347E+38 then
throw(OverflowException())
end
return v
end,
TryParse = function (s)
local v = parseDouble(s)
if v and v >= -3.40282347E+38 and v < 3.40282347E+38 then
return true, v
end
return false, 0
end
})
setmetatable(Single, Number)
local Double = define("System.Double", {
Parse = parseDoubleWithException,
TryParse = function (s)
local v = parseDouble(s)
if v then
return true, v
end
return false, 0
end
})
setmetatable(Double, Number)
if not debugsetmetatable then
local NullReferenceException = System.NullReferenceException
local systemToString = System.toString
function System.ObjectEqualsObj(this, obj)
if this == nil then throw(NullReferenceException()) end
local t = type(this)
if t == "number" then
return equalsObj(this, obj)
elseif t == "table" then
return this:EqualsObj(obj)
end
return this == obj
end
function System.ObjectGetHashCode(this)
if this == nil then throw(NullReferenceException()) end
if type(this) == "table" then
return this:GetHashCode()
end
return hash(this)
end
function System.ObjectToString(this)
if this == nil then throw(NullReferenceException()) end
return systemToString(this)
end
function System.IComparableCompareTo(this, other)
if this == nil then throw(NullReferenceException()) end
local t = type(this)
if t == "number" then
return compareDouble(this, other)
elseif t == "boolean" then
return System.Boolean.CompareTo(this, other)
end
return this:CompareTo(other)
end
function System.IEquatableEquals(this, other)
if this == nil then throw(NullReferenceException()) end
local t = type(this)
if t == "number" then
return equalsDouble(this, other)
elseif t == "boolean" then
return System.Boolean.Equals(this, other)
end
return this:Equals(other)
end
function System.IFormattableToString(this, format, formatProvider)
if this == nil then throw(NullReferenceException()) end
local t = type(this)
if t == "number" then
return toString(this, format, formatProvider)
end
return this:ToString(format, formatProvider)
end
end
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