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digitalmars.D.bugs - [Issue 7820] New: regression(DMD 2.059head) Wrong error on forward reference to 'front' with -property switch

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=7820

           Summary: regression(DMD 2.059head) Wrong error on forward
                    reference to 'front' with -property switch
           Product: D
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: rejects-valid
          Severity: regression
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: timon.gehr gmx.ch



The following code does not compile with DMD 2.059head, when passed the
-property switch.

int[] array;
pragma(msg, typeof(array.front));
 property ref T front(T)(T[] a){return a[0];}

Moving the declaration of front to the top fixes the error. This was reduced
from a template matching failure (std.algorithm.canFind cannot be instantiated
with built-in array types).

The same code compiles fine with DMD 2.058.


Another manifestation of what looks like the same issue:
pragma(msg, typeof(x)); // prints 'int' instead of 'const(int)'
const int x;

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next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=7820


Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla digitalmars.com



23:27:20 PDT ---
The second issue is not the same and isn't a regression.

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prev sibling next sibling parent 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/6fc972df155d69de9b001b28dc6f5a7d16faf351
fix Issue 7820 - regression(DMD 2.059head) Wrong error on forward reference to
'front' with -property switch

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prev sibling next sibling parent d-bugmail puremagic.com writes:
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Walter Bright <bugzilla digitalmars.com> changed:

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


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prev sibling next sibling parent d-bugmail puremagic.com writes:
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 The second issue is not the same and isn't a regression.


OK. Reposted as issue 7846.

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Apr 06 2012
prev sibling next sibling parent d-bugmail puremagic.com writes:
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The code this was reduced from still does not compile with -property for the
same reason. I will try to create another reduced example and then reopen the
issue.

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timon.gehr gmx.ch changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |



These snippets still expose the buggy behavior even after the fix:
---
int[] array;
pragma(msg, typeof(array.front));
 property int front(int[] a){return a[0];}
---
---
import std.algorithm;
alias find!("a == b",int[],int) test;
---

I assume it is the same bug in both cases.

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prev sibling next sibling parent 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/37c1856876382d820372dec621c46e884e5c97ab
fix Issue 7820 - regression(DMD 2.059head) Wrong error on forward reference to
'front' with -property switch

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prev sibling parent d-bugmail puremagic.com writes:
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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED


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