• d-bugmail puremagic.com (35/35) Apr 16 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7922
• d-bugmail puremagic.com (34/34) Apr 16 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7922
• d-bugmail puremagic.com (10/10) Apr 20 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7922
• d-bugmail puremagic.com (7/8) Apr 20 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7922
• d-bugmail puremagic.com (14/14) May 21 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7922
• d-bugmail puremagic.com (10/10) May 21 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7922

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7922

           Summary: alias this causes weird formatting issues for strings
           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



06:26:12 PDT ---
import std.string;
import std.stdio;

struct Wrap
{
    string _payload;
    alias _payload this;
}

void main()
{
    Wrap foo;
    string x = format("%s %s", "1", "2");
    foo ~= x;
    writeln(foo);  // writes: 1 2

    Wrap bar;
    bar ~= format("%s %s", "1", "2");
    writeln(bar);  // writes:
(immutable(char)[],immutable(char)[],immutable(char)[])1 2
}

What's going on here?

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d-bugmail puremagic.com writes:

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull, wrong-code
           Severity|normal                      |regression



This is a regression of fixing bug 7583.

Reduced test case:
----
struct S
{
    int[] arr;
    alias arr this;
}
S func(...)
{
    S ret;
    ret.arr.length = _arguments.length;
    return ret;
}
void main()
{
    int[] arr;
    assert(arr.length == 0);
    arr ~= func(1, 2);  //NG
    //arr = func(1, 2); //OK
    assert(arr.length == 2);
}

Pull request:
https://github.com/D-Programming-Language/dmd/pull/885

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7922


SomeDude <lovelydear mailmetrash.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lovelydear mailmetrash.com



PDT ---
See also 7598

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PDT ---

 See also 7598

See also issue 7598

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

https://github.com/D-Programming-Language/dmd/commit/a235ba424a9095b5ca2cc08f6c3444354c1a0013
fix Issue 7922 - alias this causes weird formatting issues for strings

This was a regression of fixing 7583, and redundant copy of syntax tree have
been made this problem.
So I revert efd4711 + cd7dfca, and add necessary and sufficient copy.

https://github.com/D-Programming-Language/dmd/commit/3ecc1f3fbfd1d821bd647bde2e9d4adbcf9f2b9d


Issue 7922 - alias this causes weird formatting issues for strings

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d-bugmail puremagic.com writes:

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Walter Bright <bugzilla digitalmars.com> changed:

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


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