• d-bugmail puremagic.com (43/43) Feb 08 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7469
• d-bugmail puremagic.com (32/32) Feb 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7469
• d-bugmail puremagic.com (6/6) Mar 09 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7469
• d-bugmail puremagic.com (9/9) Oct 13 2013 http://d.puremagic.com/issues/show_bug.cgi?id=7469
• d-bugmail puremagic.com (8/8) Oct 13 2013 http://d.puremagic.com/issues/show_bug.cgi?id=7469

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7469

           Summary: template mangling depends on instantiation order
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: dawg dawgfoto.de


--- Comment #0 from dawg dawgfoto.de 2012-02-08 20:26:03 PST ---
---- bug.d ----
struct Foo(int i)
{
}

version (A)
{
    Foo!3  fooa;
    Foo!3u foob;
}
else
{
    Foo!3u fooa;
    Foo!3  foob;
}

pragma(msg, typeof(fooa).mangleof);
pragma(msg, typeof(foob).mangleof);
----
dmd -c bug.d

S3bug11__T3FooVk3Z3Foo
S3bug11__T3FooVk3Z3Foo
----
dmd -c -version=A bug.d

S3bug11__T3FooVi3Z3Foo
S3bug11__T3FooVi3Z3Foo

----

The mangling should depend on the template value parameter type
not the type of the argument.

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7469



--- Comment #1 from dawg dawgfoto.de 2012-02-09 04:36:14 PST ---
cat > bug.d << EOF
struct S128(T, int k=1)
{
}

version (A)
{
    alias S128!(int) fooa;
    alias S128!(int, 1) foob;
}
else
{
    alias S128!(int, 1) fooa;
    alias S128!(int) foob;
}

pragma(msg, fooa.mangleof);
pragma(msg, foob.mangleof);
EOF

dmd -c bug.d
dmd -c -version=A bug.d
----
S3bug14__T4S128TiVi1Z4S128
S3bug14__T4S128TiVi1Z4S128
----
S3bug11__T4S128TiZ4S128
S3bug11__T4S128TiZ4S128
----
Similar bug with default values.

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--- Comment #2 from dawg dawgfoto.de 2012-03-09 19:05:41 PST ---
https://github.com/D-Programming-Language/dmd/pull/701

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d-bugmail puremagic.com writes:

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Martin Nowak <code dawg.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P2                          |P3
         AssignedTo|nobody puremagic.com        |code dawg.eu


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--- Comment #3 from Martin Nowak <code dawg.eu> 2013-10-13 16:34:55 PDT ---
Fixing this issue would allow us to use the mangling as hash key for looking up
existing template instantiations. Currently the template arguments are used for
comparison and to compute the hash (TemplateDeclaration::findExistingInstance).

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