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Copy pathBoolean.lua
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114 lines (98 loc) · 2.54 KB
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Copy pathBoolean.lua
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114 lines (98 loc) · 2.54 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 ArgumentException = System.ArgumentException
local ArgumentNullException = System.ArgumentNullException
local FormatException = System.FormatException
local type = type
local tostring = tostring
local function compareTo(this, v)
if this == v then
return 0
elseif this == false then
return -1
end
return 1
end
local falseString = "False"
local trueString = "True"
local function parse(s)
if s == nil then
return nil, 1
end
s = s:Trim():lower()
if s == "true" then
return true
elseif s == "false" then
return false
end
return nil, 2
end
local Boolean = System.defStc("System.Boolean", {
__default__ = System.falseFn,
GetHashCode = System.identityFn,
Equals = System.equals,
CompareTo = compareTo,
ToString = tostring,
FalseString = falseString,
TrueString = trueString,
CompareToObj = function (this, v)
if v == nil then return 1 end
if type(v) ~= "boolean" then
throw(ArgumentException("Arg_MustBeBoolean"))
end
return compareTo(this, v)
end,
EqualsObj = function (this, v)
if type(v) ~= "boolean" then
return false
end
return this == v
end,
__concat = function (a, b)
if type(a) == "boolean" then
return tostring(a) .. b
else
return a .. tostring(b)
end
end,
__tostring = function (this)
if this then
return trueString
end
return falseString
end,
Parse = function (s)
local v, err = parse(s)
if v == nil then
if err == 1 then
throw(ArgumentNullException())
else
throw(FormatException())
end
end
return v
end,
TryParse = function (s)
local v = parse(s)
if v ~= nil then
return true, v
end
return false, false
end,
__inherits__ = function (_, T)
return { System.IComparable, System.IComparable_1(T), System.IConvertible, System.IEquatable_1(T) }
end
})
debug.setmetatable(false, Boolean)