Created
July 22, 2011 10:43
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struct File | |
{ | |
private struct Impl | |
{ | |
uint refs = uint.max / 2; | |
//Other 'by-reference' members ... | |
this(uint r) | |
{ | |
refs = r; | |
} | |
} | |
private Impl * p; | |
this() | |
{ | |
p = new Impl(1); | |
} | |
~this() | |
{ | |
if (!p) return; | |
if (p.refs == 1) close(); | |
else --p.refs; | |
} | |
this(this) | |
{ | |
if (!p) return; | |
assert(p.refs); | |
++p.refs; | |
} | |
/** | |
Assigns a file to another. The target of the assignment gets detached | |
from whatever file it was attached to, and attaches itself to the new | |
file. | |
*/ | |
void opAssign(File rhs) | |
{ | |
swap(p, rhs.p); | |
} | |
} |
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