Created
          January 1, 2012 00:59 
        
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    compose using bindify
  
        
  
    
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  | var b = require('bindify') | |
| // first make a function that does \ a b -> \ c -> b(a c) | |
| var compose_2 = b(b, null | |
| , Function.prototype.call | |
| , b._1 | |
| , b._wrap(b._this) | |
| , nested_b(nested_b, null | |
| , b._0 | |
| , b._wrap(b._this) | |
| , b._wrap(b._argslice()))) | |
| // now make a function that does \ a b c ... -> \ z -> ... c (b (a z)) | |
| var compose = b(b, null | |
| , compose_2( | |
| b([].reduce, b._0 | |
| , nested_b(compose_2, null | |
| , nested_b(b, null | |
| , Function.prototype.apply | |
| , b._wrap(b._1) | |
| , b._this | |
| , b._wrap(b._0)) | |
| , b([].slice, b._args)) | |
| , b._1) | |
| , b([].shift, b._0)) | |
| , b._wrap(b._this), b._args, b._wrap(b._args)) | |
| function nested_b() { | |
| var func = b.apply(b, arguments) | |
| function NestedB(args, thisobj, arr, arridx) { | |
| if (arridx != -1) | |
| arr[arridx++] = func.apply(thisobj, args) | |
| return 1 } | |
| b.specialify(NestedB) | |
| return NestedB } | |
| // compose beta-equivalent to: | |
| function small_compose() { | |
| var a = arguments | |
| return function() { | |
| var t = this | |
| return [].reduce.call(a, function(p, c) { | |
| return [c.apply(t, p)] }, arguments)[0] }} | 
  
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