On 2010-09-29 17:14, Justin Johansson wrote:
Sorry if I should ask to this on D.help.
Can someone please inform me if D does type-erasure on generic
types as does Java?
Here's one Java reference on the subject that I found.
http://download.oracle.com/javase/tutorial/java/generics/erasure.html
Also I would like to be informed as to the positives and negatives
aspects of type-erasure as might be appropriate in a D versus Java
context.
Thanks for answers,
-- Justin Johansson
D does not perform type-erasure. It creates a new version of every
template for every type that is used with that template. For example:
T add (T) (T x, T y) { return x + y; }
add(3, 4)
add(4.0, 5.0);
The above template will generate two instances, like this:
int add (int x, int y) { return x + y; }
double add (double x, double y) { return x + y; }
If we look at D's templates:
pro:
* stronger type system
con:
* code bloat
* perhaps longer compile time
--
/Jacob Carlborg
