On Thursday, 10 April 2014 at 10:00:16 UTC, John Colvin wrote:
On Thursday, 10 April 2014 at 09:47:35 UTC, Chris wrote:
Are there any drawbacks with this design, i.e. using buf.put()
here
(instead of a less efficient items ~= item;)?
struct MyStruct {
Appender!(string[]) buf;
string name;
this(string name) {
this.name = name;
buf = appender!(string[]);
}
public addItem(string item) {
buf.put(item);
}
@property string[] items() {
return buf.data;
}
}
Appender supports ~ and ~=, so you can have your cake and eat
it.
Ah, this one \me (= escaped me). Sorry I wasn't precise, I was
wondering if it is in any way dangerous to have
@property string[] items() {
return buf.data;
}
instead of:
string[] items;
// ...
public addItem(string item) {
items ~= item;
}
because the two are not the same. When you print MyStruct to
console you get the address of appender buf, whereas when you use
string[] items you get the actual items. I'm only wondereing if
using appender is potentially dangerous and could bite me later.
