http://d.puremagic.com/issues/show_bug.cgi?id=9183
Summary: Add a Nullable.get(x) overload
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: Phobos
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from [email protected] 2012-12-18 20:16:08 PST ---
I suggest to add an optional argument to Nullable.get() (similar to associative
array get()), that returns the given datum if the nullable is empty. This
overload with one argument is nothrow:
import std.typecons;
nothrow void main() {
Nullable!int n;
int x = n.get(10); // x becomes 10.
}
See also Issue 9086
This idea is meant to allow some usage of Nullable in nothrow function, and to
make Nullable more handy to use in some cases.
This idea is similar to the getOrElse method of the Option Scala object:
http://www.scala-lang.org/api/current/scala/Option.html
See also in that module how many methods Scala Option has to make its usage
more handy and increase safety in absence of null.
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