• d-bugmail puremagic.com (47/47) Feb 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7613
• d-bugmail puremagic.com (12/12) Jan 08 2013 http://d.puremagic.com/issues/show_bug.cgi?id=7613

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7613

           Summary: __traits(getMember) on inner unittest: Assertion
                    failure: 'type' on line 6695 in file 'expression.c'
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: andrej.mitrovich gmail.com


--- Comment #0 from Andrej Mitrovic <andrej.mitrovich gmail.com> 2012-02-29
11:20:53 PST ---
I was attempting to use is(typeof) or __traits(compiles) to tell if a field of
a struct can be converted to a string. However when __traits(getMember) tries
to return a unittest this causes an ICE:

import std.conv;

struct Foo
{
    int x;
    unittest
    {
    }
}

void test(T)(T t)
{
    foreach (member; __traits(allMembers, T))
    {
        enum testString = "static if( is(typeof( to!string(__traits(getMember,
t, " ~ `"` ~ member ~ `"` ~ "))) )) { };";
        mixin(testString);
    }
}

void main()
{
    Foo foo;
    test(foo);

    __traits(getMember, foo, "__unittest1");
}

Assertion failure: 'type' on line 6695 in file 'expression.c'

The minimal test-case is the last line:
__traits(getMember, foo, "__unittest1");

If it was simply an error it could be caught with is(typeof), but it's an ICE.

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7613


Andrej Mitrovic <andrej.mitrovich gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich gmail.com> 2013-01-08
12:57:47 PST ---
It seems allMembers doesn't iterate through unittests anymore, not even
getMember can fetch the unittest (compiling with -unittest).

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