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Copy pathTimeSpan.lua
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309 lines (262 loc) · 7.18 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 System = System
local throw = System.throw
local div = System.div
local trunc = System.trunc
local ArgumentException = System.ArgumentException
local OverflowException = System.OverflowException
local ArgumentNullException = System.ArgumentNullException
local FormatException = System.FormatException
local getmetatable = getmetatable
local select = select
local sformat = string.format
local sfind = string.find
local tostring = tostring
local tonumber = tonumber
local floor = math.floor
local log10 = math.log10
local TimeSpan = {}
local function compare(t1, t2)
if t1.ticks > t2.ticks then return 1 end
if t1.ticks < t2.ticks then return -1 end
return 0
end
TimeSpan.Compare = compare
TimeSpan.CompareTo = compare
function TimeSpan.CompareToObj(this, t)
if t == null then return 1 end
if getmetatable(t) ~= TimeSpan then
throw(ArgumentException("Arg_MustBeTimeSpan"))
end
compare(this, t)
end
function TimeSpan.Equals(t1, t2)
return t1.ticks == t2.ticks
end
function TimeSpan.EqualsObj(this, t)
if getmetatable(t) == TimeSpan then
return this.ticks == t.ticks
end
return false
end
function TimeSpan.GetHashCode(this)
return this.ticks
end
function TimeSpan.__ctor__(this, ...)
local ticks
local length = select("#", ...)
if length == 1 then
ticks = ...
elseif length == 3 then
local hours, minutes, seconds = ...
ticks = (((hours * 60 + minutes) * 60) + seconds) * 1e7
elseif length == 4 then
local days, hours, minutes, seconds = ...
ticks = ((((days * 24 + hours) * 60 + minutes) * 60) + seconds) * 1e7
elseif length == 5 then
local days, hours, minutes, seconds, milliseconds = ...
ticks = (((((days * 24 + hours) * 60 + minutes) * 60) + seconds) * 1e3 + milliseconds) * 1e4
end
assert(ticks)
this.ticks = ticks
end
function TimeSpan.getTicks(this)
return this.ticks
end
function TimeSpan.getDays(this)
return div(this.ticks, 864e9)
end
function TimeSpan.getHours(this)
return div(this.ticks, 36e9) % 24
end
function TimeSpan.getMinutes(this)
return div(this.ticks, 6e8) % 60
end
function TimeSpan.getSeconds(this)
return div(this.ticks, 1e7) % 60
end
function TimeSpan.getMilliseconds(this)
return div(this.ticks, 1e4) % 1000
end
function TimeSpan.getTotalDays(this)
return this.ticks / 864e9
end
function TimeSpan.getTotalHours(this)
return this.ticks / 36e9
end
function TimeSpan.getTotalMilliseconds(this)
return this.ticks / 1e4
end
function TimeSpan.getTotalMinutes(this)
return this.ticks / 6e8
end
function TimeSpan.getTotalSeconds(this)
return this.ticks / 1e7
end
function TimeSpan.Add(this, ts)
return TimeSpan(this.ticks + ts.ticks)
end
function TimeSpan.Subtract(this, ts)
return TimeSpan(this.ticks - ts.ticks)
end
function TimeSpan.Duration(this)
local ticks = this.ticks
if ticks == -9223372036854775808 then
throw(OverflowException("Overflow_Duration"))
end
return TimeSpan(ticks >= 0 and ticks or - ticks)
end
function TimeSpan.Negate(this)
local ticks = this.ticks
if ticks == -9223372036854775808 then
throw(OverflowException("Overflow_NegateTwosCompNum"))
end
return TimeSpan(-ticks)
end
function TimeSpan.ToString(this)
local day, milliseconds = this:getDays(), this.ticks % 1e7
local daysStr = day == 0 and "" or (day .. ".")
local millisecondsStr = milliseconds == 0 and "" or "." .. milliseconds
return sformat("%s%02d:%02d:%02d%s", daysStr, this:getHours(), this:getMinutes(), this:getSeconds(), millisecondsStr)
end
local function parse(s)
if s == nil then
return nil, 1
end
local v = tonumber(s)
if v ~= nil then
if v ~= floor(v) then
return nil, 2
end
return TimeSpan.FromDays(v)
end
local i, j, day, hour, minute, second, milliseconds
i, j, day, hour, minute = sfind(s, "^%s*(%d+)%.(%d+):(%d+)")
if i == nil then
i, j, hour, minute = sfind(s, "^%s*(%d+):(%d+)")
if i == nil then
return nil, 2
else
hour, minute = tonumber(hour), tonumber(minute)
end
day = 0
else
day, hour, minute = tonumber(day), tonumber(hour), tonumber(minute)
end
if j < #s then
local next = j + 1
i, j, second = sfind(s, "^:(%d+)", next)
if i == nil then
if sfind(s, "^%s*$", next) == nil then
return nil, 2
else
second = 0
milliseconds = 0
end
else
second = tonumber(second)
next = j + 1
i, j, milliseconds = sfind(s, "^%.(%d+)%s*$", next)
if i == nil then
if sfind(s, "^%s*$", next) == nil then
return nil, 2
else
milliseconds = 0
end
else
milliseconds = tonumber(milliseconds)
local n = floor(log10(milliseconds) + 1)
if n > 3 then
if n > 7 then
return nil, 2
end
milliseconds = milliseconds / (10 ^ (n - 3))
end
end
end
else
second = 0
milliseconds = 0
end
return TimeSpan(day, hour, minute, second, milliseconds)
end
function TimeSpan.Parse(s)
local v, err = parse(s)
if v then
return v
end
if err == 1 then
throw(ArgumentNullException())
else
throw(FormatException())
end
end
TimeSpan.__add = TimeSpan.Add
TimeSpan.__sub = TimeSpan.Subtract
function TimeSpan.__eq(t1, t2)
return t1.ticks == t2.ticks
end
function TimeSpan.__lt(t1, t2)
return t1.ticks < t2.ticks
end
function TimeSpan.__le(t1, t2)
return t1.ticks <= t2.ticks
end
local function interval(value, scale)
if value ~= value then
throw(ArgumentException("Arg_CannotBeNaN"))
end
local tmp = value * scale
local millis = tmp + (value >=0 and 0.5 or -0.5)
if millis > 922337203685477 or millis < -922337203685477 then
throw(OverflowException("Overflow_TimeSpanTooLong"))
end
return TimeSpan(trunc(millis) * 1e4)
end
function TimeSpan.FromDays(value)
return interval(value, 864e5)
end
function TimeSpan.FromHours(value)
return interval(value, 36e5)
end
function TimeSpan.FromMilliseconds(value)
return interval(value, 1)
end
function TimeSpan.FromMinutes(value)
return interval(value, 6e4)
end
function TimeSpan.FromSeconds(value)
return interval(value, 1000)
end
function TimeSpan.FromTicks(value)
return TimeSpan(value)
end
function TimeSpan.__inherits__()
return { System.IComparable, System.IComparable_1(TimeSpan), System.IEquatable_1(TimeSpan) }
end
System.defStc("System.TimeSpan", TimeSpan)
local zero = TimeSpan(0)
TimeSpan.Zero = zero
TimeSpan.MaxValue = TimeSpan(9223372036854775807)
TimeSpan.MinValue = TimeSpan(-9223372036854775808)
function TimeSpan.__default__()
return zero
end
function TimeSpan.TryParse(s)
local v = parse(s)
if v then
return true, v
end
return false, zero
end