[Issue 7249] 2.058 regression: no size yet for forward reference when using this.init.tupleof
http://d.puremagic.com/issues/show_bug.cgi?id=7249
--- Comment #1 from Kenji Hara k.hara...@gmail.com 2012-01-08 15:05:22 PST ---
This causes by fixing bug 7190.
I think this is similar problem like follows:
struct S
{
int x;
alias typeof(this.init.sizeof) T;
// Error: struct test.S no size yet for forward reference
}
tupleof property requires complete semantic analysis to get the fields of a
type.
So it is meaningful forward reference, IMHO.
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[Issue 7249] 2.058 regression: no size yet for forward reference when using this.init.tupleof
http://d.puremagic.com/issues/show_bug.cgi?id=7249
--- Comment #2 from Vladimir Panteleev thecybersha...@gmail.com 2012-01-08
15:11:53 PST ---
In my case, the list of fields is passed as a template parameter:
struct S(string FIELDS)
{
mixin(FIELDS);
alias typeof(Fields.init.tupleof[0]) TypeOfFirstField;
}
There is a simple workaround available:
struct Fields { mixin(FIELDS); }
alias typeof(Fields.init.tupleof[0]) TypeOfFirstField;
So, if you think this is not a bug, I'm not against this change.
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[Issue 7249] 2.058 regression: no size yet for forward reference when using this.init.tupleof
http://d.puremagic.com/issues/show_bug.cgi?id=7249
--- Comment #3 from Vladimir Panteleev thecybersha...@gmail.com 2012-01-08
15:15:23 PST ---
(In reply to comment #2)
In my case, the list of fields is passed as a template parameter:
struct S(string FIELDS)
{
mixin(FIELDS);
alias typeof(Fields.init.tupleof[0]) TypeOfFirstField;
Oops, last line should be:
alias typeof(this.init.tupleof[0]) TypeOfFirstField;
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[Issue 7249] 2.058 regression: no size yet for forward reference when using this.init.tupleof
http://d.puremagic.com/issues/show_bug.cgi?id=7249
--- Comment #4 from Kenji Hara k.hara...@gmail.com 2012-01-08 15:25:00 PST ---
(In reply to comment #2)
So, if you think this is not a bug, I'm not against this change.
Yes, I think this is not a bug.
Additionally, old behavior had a order dependent problem.
struct S
{
alias typeof(this.init.tupleof[0]) T;
// Error: array index [0] is outside array bounds [0 .. 0]
// - tupleof result was empty
int x;
alias typeof(this.init.tupleof[0]) T;
// OK, T == int
}
Now they raise forward reference error as a same.
I think it's better consistency.
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[Issue 7249] 2.058 regression: no size yet for forward reference when using this.init.tupleof
http://d.puremagic.com/issues/show_bug.cgi?id=7249 Vladimir Panteleev thecybersha...@gmail.com changed: What|Removed |Added Status|NEW |RESOLVED Resolution||INVALID --- Comment #5 from Vladimir Panteleev thecybersha...@gmail.com 2012-01-08 15:26:02 PST --- OK, thanks for looking into this. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
