The Racket repository
126c090579
Skip calling the domain projection in that case and, if all of the
arguments are any/c then also skip putting the contract continuation mark
This appears to give about a 20% speed up on this program:
#lang racket/base
(require racket/contract/base)
(define f
(contract
(-> any/c integer?)
(λ (x) 1)
'pos 'neg))
(time
(for ([x (in-range 4000000)])
(f 1)))
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This is the source code for the main Racket distribution. See "INSTALL.txt" for information on building Racket. License ------- Racket Copyright (c) 2010-2016 PLT Design Inc. Racket is distributed under the GNU Lesser General Public License (LGPL). This implies that you may link Racket into proprietary applications, provided you follow the rules stated in the LGPL. You can also modify Racket; if you distribute a modified version, you must distribute it under the terms of the LGPL, which in particular states that you must release the source code for the modified software. See racket/src/COPYING_LESSER.txt for more information.