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On Jan 11, 2007, at 22:01, Bret Victor wrote:


I'm curious whether it's possible to write a "curry"
that doesn't create all this indirection.  (And doesn't test the length
of { ... } and use explicit code for different lengths!)


Uses the length of the arguments *and* creates tables... 8^)

function unpacks( ... )
        local someValues = {}

        for anIndex = 1, select( "#", ... ) do
                for _, aValue in ipairs( select( anIndex, ... ) ) do
                        someValues[ #someValues + 1] = aValue
                end
        end

        return unpack( someValues )
end

function curry( aFunction, ... )
        local someArguments = { ... }

        return function( ... )
                return aFunction( unpacks( someArguments, { ... } ) )
        end
end