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Note about deprecation in generics.txt

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I'm happy to change the wording or anything. It does seem like an important thing to mention, though. It might be better not to even mention typeless procs so as not to encourage bad behavior.
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apense
2015-06-08 16:03:57 -04:00
parent bbb1bdb4a9
commit ab1b1c9251
1 changed files with 4 additions and 2 deletions
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6
doc/manual/generics.txt
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@@ -164,11 +164,13 @@ Alternatively, the ``distinct`` type modifier can be applied to the type class
to allow each param matching the type class to bind to a different type.
If a proc param doesn't have a type specified, Nim will use the
``distinct auto`` type class (also known as ``any``):
``distinct auto`` type class (also known as ``any``). Note this behavior is
deprecated for procs; templates, however, support them:
.. code-block:: nim
# allow any combination of param types
proc concat(a, b): string = $a & $b
proc concat(a, b): string = $a & $b # deprecated
proc concat(a, b: any): string = $a & $b # preferred
Procs written with the implicitly generic style will often need to refer to the
type parameters of the matched generic type. They can be easily accessed using