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--- eiffel:faq:void-safety [2018/01/10 04:55]
jonathan
+++ eiffel:faq:void-safety [2018/05/16 03:31] (current)
jonathan
@@ Line 8: / Line 8: @@
 (login with ''anonymous'' and no password).
-===== Code and slides=====
+===== Slides and Code=====
+<code>
+svn export https://svn.eecs.yorku.ca/repos/sel-open/misc/tutorial/Void-Safety/node
+</code>
+[[https://youtu.be/nq3-ZnaLOJs|Slide Video]]
+{{ :eiffel:faq:faq:void-safety.pdf |pdf}}
+===== Formal generic type declarations =====
+  *FOO [G] = FOO [G -> detachable separate ANY] - actual generic can be detachable and can be separate.
+  *FOO [G -> detachable ANY] - actual generic can be detachable, but it is never separate.
+  *FOO [G -> ANY] = FOO [G -> attached ANY] - actual generic is always attached and is never separate.
+  *FOO [G -> separate ANY] = FOO [G -> attached separate ANY] - actual generic is always attached and can be separate.
+It is also possible to have indirect constraints, e.g. BAR [G -> H, H -> ANY] means that actual generic parameter corresponding to G should be attached and non-separate.
-  svn export https://svn.eecs.yorku.ca/repos/sel-open/misc/tutorial/Void-Safety/node
-  * [[https://youtu.be/nq3-ZnaLOJs|Slides Video]

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