[Issue 18267] Linker errors compiling std_data_json dub package with dmd 2.078.0

[Issue 18267] array comparison broken in 2.078.3

Feb 22, 2018

John Colvin

Apr 27, 2018

Mike Franklin

Apr 01, 2019

feklushkin.denis@gmail.com

Apr 01, 2019

feklushkin.denis@gmail.com

Nov 02, 2021

RazvanN

Nov 02, 2021

John Colvin

https://issues.dlang.org/show_bug.cgi?id=18267 --- Comment #2 from Atila Neves <atila.neves@gmail.com> --- If it's marked as `@safe` then `pure` is still an issue. At least with the very reduced example. I think the specifics depend on the code being compiled. --

February 22, 2018

[Issue 18267] array comparison broken in 2.078.3

Posted by John Colvin

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John Colvin

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https://issues.dlang.org/show_bug.cgi?id=18267

John Colvin <john.loughran.colvin@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |industry
            Summary|Linker errors compiling     |array comparison broken in
                   |std_data_json dub package   |2.078.3
                   |with dmd 2.078.0            |

--- Comment #3 from John Colvin <john.loughran.colvin@gmail.com> ---
Here is a standalone file that demonstrates what I think is a symptom of the same bug:

% cat oops.d
struct JSONValue
{
    TaggedAlgebraic payload;
    alias payload this;
}

struct TaggedAlgebraic
{
    auto opEquals(T)(T other) const
    {
        static assert(is(typeof(performOp!(JSONValue[], T))));
        return const(JSONValue[]).init == other;
    }
}

bool performOp(T, A)(T value, A arg)
{
    return value == arg;
}

% dmd oops.d
Undefined symbols for architecture x86_64:
  "_D6object__T8__equalsTxS4oops9JSONValueTxQsZQBgFNbAxQBdQfZb", referenced
from:
      _D4oops15TaggedAlgebraic__T8opEqualsTAxSQBm9JSONValueZQBbMxFQxZb in
oops.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

--

https://issues.dlang.org/show_bug.cgi?id=18267 Mike Franklin <slavo5150@yahoo.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |slavo5150@yahoo.com --- Comment #4 from Mike Franklin <slavo5150@yahoo.com> --- Attributing `opEquals` with `nothrow` resolves the linker error: struct S { P payload; alias payload this; } struct P { auto opEquals(T)(T other) const nothrow //*** Needs nothrow ***/ { static assert(is(typeof(performOp!(S[], T)))); return const(S[]).init == other; } } bool performOp(T, A)(T value, A arg) { return value == arg; } --

https://issues.dlang.org/show_bug.cgi?id=18267 feklushkin.denis@gmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |feklushkin.denis@gmail.com --

https://issues.dlang.org/show_bug.cgi?id=18267 RazvanN <razvan.nitu1305@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |razvan.nitu1305@gmail.com Resolution|--- |FIXED --- Comment #5 from RazvanN <razvan.nitu1305@gmail.com> --- This seems to have been fix as I cannot reproduce the example provided by John Colvin. --

https://issues.dlang.org/show_bug.cgi?id=18267 John Colvin <john.loughran.colvin@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|FIXED |--- --- Comment #6 from John Colvin <john.loughran.colvin@gmail.com> --- Atila's original example still fails with dmd master --

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