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Switch type marker to be a special symbol, so it's less likely to conflict

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This commit is contained in:
Lucien Greathouse 2018-09-14 13:53:13 -07:00
parent 9bda3e68ea
commit 23a3b629d6
1 changed files with 4 additions and 2 deletions
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6
lib/init.lua
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@ -74,6 +74,8 @@ local function createSymbol(name)
return symbol return symbol
end end
local PromiseMarker = createSymbol("PromiseMarker")
local Promise = {} local Promise = {}
Promise.prototype = {} Promise.prototype = {}
Promise.__index = Promise.prototype Promise.__index = Promise.prototype
@ -114,7 +116,7 @@ function Promise.new(callback)
_source = debug.traceback(), _source = debug.traceback(),
-- A tag to identify us as a promise -- A tag to identify us as a promise
_type = "Promise", [PromiseMarker] = true,
_status = Promise.Status.Started, _status = Promise.Status.Started,
@ -245,7 +247,7 @@ function Promise.is(object)
return false return false
end end
return object._type == "Promise" return object[PromiseMarker] == true
end end
function Promise.prototype:getStatus() function Promise.prototype:getStatus()