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Added note about type parameters in ifaces.

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Specficially, the type parameters should be left off of the function
signatures in both the iface and the impl if they are already in the
iface declaration.
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Ryan Scheel 2012-07-14 01:36:42 -07:00
parent e430a699f2
commit c5b23c3400
1 changed files with 4 additions and 0 deletions
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@ -2504,6 +2504,10 @@ needed because it could also, for example, specify an implementation
of `seq<int>`—the `of` clause *refers* to a type, rather than defining
one.
Note that functions do not explicitly have the type parameters that
are provided by the iface. It will cause a compile-time error if you
include them in the iface or impl.
## Casting to an interface type
The above allows us to define functions that polymorphically act on