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Viewing changes to zoetrope/core/promise.lua

  • Committer: Josh C
  • Date: 2013-08-25 00:16:36 UTC
  • Revision ID: josh@9ix.org-20130825001636-xoivc9byo1mdx0fu
1 goal in each maze

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zoetrope/core/promise.lua
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                if results and type(results[1]) == 'table' and results[1].instanceOf and results[1]:instanceOf(Promise) then
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                        results[1]:andThen(function(...) self:fulfill(...) end, function(errorMessage) self:fail(errorMessage) end)
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                -- if the callback returned a regular value, fulfill the promise
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                elseif callback and results then
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                        -- fulfill or progress the promise as requested, with the returned value(s)
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                        -- (note simulated colon calling syntax)
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                        if defaultAction ~= 'fail' then
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                                if #results > 1 then
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                                        self[defaultAction](self, unpack(results))
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                                else
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                                        self[defaultAction](self, results[1])
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                                end
 
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                        if #results > 1 then
 
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                                self:fulfill(unpack(results))
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                        else
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                                -- force failures to receive the same error message we did
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                                local args = {...}
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                                self:fail(args[1])
 
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                                self:fulfill(results[1])
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                        end
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                -- and if there was any kind of error, force failure
 
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                -- if there was any kind of error, fail
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                elseif errorMessage then
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                        self:fail(errorMessage)