R: add step4_if_fn_do and step5_tco.
authorJoel Martin <github@martintribe.org>
Mon, 3 Nov 2014 03:32:33 +0000 (21:32 -0600)
committerJoel Martin <github@martintribe.org>
Fri, 9 Jan 2015 22:16:43 +0000 (16:16 -0600)
commit01feedfe22a381c6b6ca79bdf0db798aa08c4104
treeacee75da927f3d4234f7433801584ca750502a9f
parent4d1456b98f34bfa74aea912469aa246b56273d76
R: add step4_if_fn_do and step5_tco.

Switch nil from NULL to special class.
r/core.r [new file with mode: 0644]
r/env.r
r/printer.r
r/reader.r
r/step2_eval.r
r/step3_env.r
r/step4_if_fn_do.r [new file with mode: 0644]
r/step5_tco.r [new file with mode: 0644]
r/types.r