racket/pkgs/racket-doc/scribblings
Asumu Takikawa c2cd44c928 Implement class sealing/unsealing
Adds a sealing and unsealing function to attach (or detach)
seals onto a class via impersonator properties. Since these
properties override, they do not accumulate wrappers.

Calling seal multiple times will still accumulate multiple seal
values inside the property.

A sealed class cannot be instantiated and a subclass may not
add class members that match any of the sealed names in its
sealed parent.

These functions are intended for use by TR's `sealing->/c`
contract, but are parameterized over checking functions and
could be used for other purposes.
2015-05-13 13:21:51 -04:00
..
foreign Fix typo in ffi COM docs 2015-05-13 11:02:14 -04:00
getting-started
guide Add example of struct subtype inheritance of supertype. Clarify struct subtype inherits the prefix of the struct supertype. 2015-05-03 10:20:26 -06:00
inside
more fix link of Queinnec paper 2015-04-25 17:12:40 -05:00
raco add get-current-doc-state, doc-state-changed?, and doc-state? 2015-04-17 04:51:57 -05:00
reference Implement class sealing/unsealing 2015-05-13 13:21:51 -04:00
scheme
style Robby's improvement for Jay's things 2015-05-03 09:25:50 -04:00
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