digitalmars.D.bugs - [Issue 4773] New: ]Rebindable should be castable to bool
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http://d.puremagic.com/issues/show_bug.cgi?id=4773
Summary: ]Rebindable should be castable to bool
Product: D
Version: D2
Platform: Other
OS/Version: Windows
Status: NEW
Severity: enhancement
Priority: P2
Component: Phobos
AssignedTo: nobody puremagic.com
ReportedBy: simen.kjaras gmail.com
PDT ---
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Aug 31 2010
d-bugmail puremagic.com
http://d.puremagic.com/issues/show_bug.cgi?id=4773
Simen Kjaeraas <simen.kjaras gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|]Rebindable should be |[PATCH] Rebindable should
|castable to bool |be castable to bool
PDT ---
Yeah, that's what you get when you press the wrong buttons. :p
Anyways, Rebindable should be castable to bool, to allow for the idiom
Rebindable!T foo; if (foo) {}.
Addition to typecons.d, line 747:
T opCast(T : bool)()
{
return original !is null;
}
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Aug 31 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4773
Shin Fujishiro <rsinfu gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |rsinfu gmail.com
AssignedTo|nobody puremagic.com |rsinfu gmail.com
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Oct 08 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4773
Shin Fujishiro <rsinfu gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Depends on| |5020
---
Actually, it's explicitly castable to bool:
Rebindable!(const Object) r;
if (cast(bool) r) assert(0);
r = new Object;
if (!cast(bool) r) assert(0);
But dmd doesn't forward implicit boolean conversions in if (or other)
conditions to Rebindable's alias-this object. Reported: bug 5020.
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Oct 08 2010
http://d.puremagic.com/issues/show_bug.cgi?id=4773
Kenji Hara <k.hara.pg gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |k.hara.pg gmail.com
Component|Phobos |DMD
Platform|Other |All
AssignedTo|rsinfu gmail.com |nobody puremagic.com
Summary|[PATCH] Rebindable should |Rebindable should be
|be castable to bool |castable to bool
OS/Version|Windows |All
Severity|enhancement |normal
This is dmd issue.
Fixing bug5020 is incomplete, so property function + alias this is not
implicitly convertible to bool.
----
struct Rebindable
{
Object obj;
property const(Object) get(){ return obj; }
alias get this;
}
Rebindable r;
if (r) assert(0);
r.obj = new Object;
if (!r) assert(0);
----
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Jul 26 2011
http://d.puremagic.com/issues/show_bug.cgi?id=4773
Kenji Hara <k.hara.pg gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
Posted pull request:
https://github.com/D-Programming-Language/dmd/pull/281
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Jul 29 2011
http://d.puremagic.com/issues/show_bug.cgi?id=4773
Walter Bright <bugzilla digitalmars.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
CC| |bugzilla digitalmars.com
Resolution| |FIXED
10:37:44 PDT ---
https://github.com/D-Programming-Language/dmd/commit/f70793ba34e4c4365eda7a33e3c073a7b13002a6
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Jul 30 2011
http://d.puremagic.com/issues/show_bug.cgi?id=4773
bearophile_hugs eml.cc changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bearophile_hugs eml.cc
*** Issue 5256 has been marked as a duplicate of this issue. ***
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Jul 30 2011