On 04/17/2017 12:33 PM, H. S. Teoh via Digitalmars-d-learn wrote:
On Mon, Apr 17, 2017 at 12:05:19PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
[...]
auto byNode(const(Tree) tree) {
alias RangeType = typeof(byNode(tree.root));
Could this possibly be simplified to:
alias RangeType = typeof(return);
?
Thank you. That's much better but only if I restructure the code to use
an if statement:
auto byNode(const(Tree) tree) {
if (tree.root) {
return byNode(tree.root);
}
else {
alias RangeType = typeof(return);
return new RangeType(() {});
}
}
That works because the return type of the function is the first return
statement. (My original code had only one return and that was the problem.)
Ali
