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Matthew Flatt d7b18e7a9c adjust map and for ... in-list to not retain their lists 
Adjust list and stream handling as sequences so that during the body

 (for ([i (in-list l)])
   ....)

then `i` and its cons cell in `l` are not implicitly retained while
the body is evaluated. A `for .... in-stream` similarly avoids
retaining the stream whose head is being used in the loop body.

The `map`, `for-each`, `andmap`, and `ormap` functions are similarly
updated.

The `make-do-sequence` protocol allows an optional extra result so
that new sequence types could have the same properties. It's not clear
that using `make-do-sequence` is any more useful than creating the new
sequence as a stream, but it was easier to expose the new
functionality than to hide it.

Making this work required a repair to the optimizer, which would
incorrectly move an `if` expression in a way that could affect
space complexity, as well as a few repairs to the run-time system
(especially in the vicinity of the built-in `map`, which we should
just get rid of eventually, anyway).
2016-12-13 19:20:41 -07:00
pkgs adjust map and for ... in-list to not retain their lists 2016-12-13 19:20:41 -07:00
racket adjust map and for ... in-list to not retain their lists 2016-12-13 19:20:41 -07:00
.gitattributes Don't include git files in archives. 2010-05-12 01:46:05 -04:00
.gitignore Add *.orig, *.rej and *.core files to gitignore. 2015-11-06 10:25:13 -06:00
.mailmap mailmap updates & fixes. 2013-04-03 18:10:22 -04:00
.travis.yml Fix CI tests for match test move. 2015-12-30 10:39:45 -05:00
appveyor.yml Fix CI tests for match test move. 2015-12-30 10:39:45 -05:00
INSTALL.txt Corrected a few typos in INSTALL.txt 2016-06-02 13:39:39 -05:00
Makefile Moved xrepl to be part of bootloader directly. 2016-07-26 10:14:38 -04:00
README.md Add info to README. 2016-07-13 10:38:54 -04:00

README.md

Linux/Mac Build Status Windows build status

This is the source code for the core of Racket. See "INSTALL.txt" for full information on building Racket.

To build the full Racket distribution from this repository, run make in the top-level directory. To build the Minimal Racket, run make base.

The rest of the Racket distribution source code is in other repositories under the Racket GitHub organization.

Contribute to Racket by submitting a pull request, joining the development mailing list, or visiting the IRC channel.

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.