• d-bugmail puremagic.com (51/51) Mar 22 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7751
• d-bugmail puremagic.com (14/14) Mar 23 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7751
• d-bugmail puremagic.com (11/11) Mar 25 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7751
• d-bugmail puremagic.com (9/9) Mar 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7751
• d-bugmail puremagic.com (10/10) Mar 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7751
• d-bugmail puremagic.com (9/9) Mar 29 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7751

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7751

           Summary: [ICE] From auto and forward reference
           Product: D
           Version: unspecified
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc



This is wrong D2 code because Foo has no constructor:


class Foo(T) {
    T x;
    Foo y;
}
auto foo(T)(T x, Foo!T y=null) {
    return new Foo!T(x, y);
}
void bar(U)(U foo, U[] spam=[]) {
    spam ~= [];
}
void main() {
    bar(foo(0));
}



DMD 2.059head gives:

test.d(6): Error: no constructor for Foo
test.d(12): Error: template instance test.foo!(int) error instantiating

Followed by a crash.



If I remove the template of Foo:


class Foo {
    int x;
    Foo y;
}
auto foo(int x, Foo y=null) {
    return new Foo(x, y);
}
void bar(U)(U foo, U[] spam=[]) {
    spam ~= [];
}
void main() {
    bar(foo(0));
}



DMD gives this and no crash:

test.d(6): Error: no constructor for Foo
test.d(12): Error: forward reference to foo

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7751


Kenji Hara <k.hara.pg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice, pull
           Platform|x86                         |All
            Version|unspecified                 |D2
         OS/Version|Windows                     |All
           Severity|normal                      |major



https://github.com/D-Programming-Language/dmd/pull/828

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7751


Kenji Hara <k.hara.pg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[ICE] From auto and forward |[ICE] (Regression
                   |reference                   |2.059head) From auto and
                   |                            |forward reference
           Severity|major                       |regression


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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7751




Commit pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/cd7d2fc3843ffa96d6c8413ba1dbc5b90c7b05de


Issue 7751 - [ICE] From auto and forward reference

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7751


Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla digitalmars.com
         Resolution|                            |FIXED


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d-bugmail puremagic.com writes:

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Commit pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/a4d1e283f85e4258e31e05e31fcc948199b69239


Fix issue 7751, improve error handling

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