Hi,

In DMD's AST we have something I'd like to call gohstNodes.
That is nodes which get lowered into others.
For example a the foreach-loop, the do while, while and do until loop.
Are all lowered into a for loop.

making the others into a ghost node which is never supposed to appear. yet every visitor checks for them explicitly.

If all of those were a subclass of ghostnode which in turn would be a
subclass of RootObject.
Then one visit overload would suffice to catch them all.
_______________________________________________
dmd-internals mailing list
dmd-internals@puremagic.com
http://lists.puremagic.com/mailman/listinfo/dmd-internals