[Issue 18992] New: Appender doesn't work with structs that have impure postblit

d-bugmail at puremagic.com d-bugmail at puremagic.com
Fri Jun 15 11:47:51 UTC 2018


https://issues.dlang.org/show_bug.cgi?id=18992

          Issue ID: 18992
           Summary: Appender doesn't work with structs that have impure
                    postblit
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: b2.temp at gmx.com

test case:

import std.array;

unittest
{
    static void impure(){}

    struct Simple
    {
        @disable this(); // Without this, it works.
        this(this) { impure(); }
        this(int tmp) { }
    }

    struct Range
    {
        @property Simple front() { return Simple(0); }
        void popFront() {  }
        @property empty() { return true; }
        size_t count;
    }

    Range r;
    auto a = r.array();
}

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