[Issue 2848] static if (is(type)) + alias fails to compile

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https://issues.dlang.org/show_bug.cgi?id=2848

Walter Bright bugzi...@digitalmars.com changed:

   What|Removed |Added

Version|1.043   |D1

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[Issue 2848] static if (is(type)) + alias fails to compile

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http://d.puremagic.com/issues/show_bug.cgi?id=2848



--- Comment #6 from Leandro Lucarella llu...@gmail.com 2010-06-22 06:09:05 
PDT ---
Thanks!(In reply to comment #5)
 (In reply to comment #4)
  Works in DMD 1.062, I don't know when it got fixed. I guess it will work in 
  DMD
  2.0xx, but I don't have one installed to test.
  
  If somebody wants to try it, this bug can be closed (maybe Don who seems to
  bisect a lot and has an environment to do that easily wants to bisect DMD to
  see when it got fixed and add the proper changelog entry ;).
 No probs.
 Fixed DMD 1.050.

Thanks =)

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--- Comment #4 from Leandro Lucarella llu...@gmail.com 2010-06-21 17:53:23 
PDT ---
Works in DMD 1.062, I don't know when it got fixed. I guess it will work in DMD
2.0xx, but I don't have one installed to test.

If somebody wants to try it, this bug can be closed (maybe Don who seems to
bisect a lot and has an environment to do that easily wants to bisect DMD to
see when it got fixed and add the proper changelog entry ;).

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Don clugd...@yahoo.com.au changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||clugd...@yahoo.com.au
 Resolution||FIXED


--- Comment #5 from Don clugd...@yahoo.com.au 2010-06-21 21:04:18 PDT ---
(In reply to comment #4)
 Works in DMD 1.062, I don't know when it got fixed. I guess it will work in 
 DMD
 2.0xx, but I don't have one installed to test.
 
 If somebody wants to try it, this bug can be closed (maybe Don who seems to
 bisect a lot and has an environment to do that easily wants to bisect DMD to
 see when it got fixed and add the proper changelog entry ;).
No probs.
Fixed DMD 1.050.

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--- Comment #1 from llu...@gmail.com  2009-04-17 12:28 ---
BTW, using static if (is(typeof(no_type))) doesn't work either.


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[Issue 2848] static if (is(type)) + alias fails to compile

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http://d.puremagic.com/issues/show_bug.cgi?id=2848





--- Comment #3 from fvbom...@wxs.nl  2009-04-17 12:31 ---
Workaround:

alias char[] String;

static if (!is(no_type))
alias String no_type;
no_type x;


It seems to fail when the aliased type is a primitive type or array (static,
dynamic or associative).

It doesn't fail if it's a class, struct, enum, typedef or aliased type.


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[Issue 2848] static if (is(type)) + alias fails to compile

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--- Comment #2 from llu...@gmail.com  2009-04-17 12:30 ---
It seems to happen for array, int and float aliasee, but not for Object or
struct types...

This workaround works:

alias char[] String;
static if (!is(no_type)) {
 alias String no_type;
 no_type y;
}
no_type x;

It seems not to fail when aliassed to user-defined types (classes, structs,
enums, aliases, typedefs), but for primitive types and arrays it fails.

typedef have the same problem.


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