c4 13

Author: seckcoder

src/eval/c4_13.scm

@@ -0,0 +1,8 @@
+; 1. I don't think we really need `make-unbound`
+; 2. If we really need it, then it should be a terrible idea to
+; provide a feature that can remove the binding from enclosed environment.
+; Since that may bring ugly code. For example, if we call a func wrote by
+; others, and the func may remove some binding silently, which will cause
+; hard to debug bugs. Another case is, if the program provides some interface
+; that can insert code by others, than the malicious users can call the unbound
+; feature to bring down the whole system.