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digitalmars.D.bugs - [Issue 1731] New: forward reference of function type alias resets calling convention

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           Summary: forward reference of function type alias resets calling
                    convention
           Product: D
           Version: 1.024
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: thecybershadow gmail.com


// == minimal testcase start ==
alias uint DWORD;
MY_API_FUNCTION lpStartAddress;  // <-- comment this line to remove error
extern (Windows) alias DWORD function(void*) MY_API_FUNCTION;
static assert(MY_API_FUNCTION.stringof == "uint(Windows *)(void*)");
// == minimal testcase end ==

The actual calling convention (MY_API_FUNCTION.stringof) is "uint(*)(void*)".
This is from a real-life case (the Windows header project).


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Dec 14 2007
next sibling parent d-bugmail puremagic.com writes:
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------- Comment #1 from maxmo pochta.ru  2009-04-06 06:05 -------
For dmd 2.023

alias uint DWORD;
MY_API_FUNCTION lpStartAddress;  // <-- comment this line to remove error
extern (Windows) alias DWORD function(void*) MY_API_FUNCTION;
static assert(MY_API_FUNCTION.stringof == "uintWindows  function(void*)",
MY_API_FUNCTION.stringof);


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Apr 06 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
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maxmo pochta.ru changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical




------- Comment #2 from maxmo pochta.ru  2009-04-06 06:10 -------
Subtle and disastrous bug, raising severity.


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Apr 06 2009
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--- Comment #3 from Rainer Schuetze <r.sagitario gmx.de> 2009-09-23 14:03:37
PDT ---
Created an attachment (id=465)
evaluate forward referenced alias in correct scope

The forward reference to the alias causes its semantic analysis to be run from
the scope of the variable declaration, omitting the "extern(Windows)"
attribute. The patch uses the scope of the symbol (which happens to already
exist) instead of the current scope.

The patch also fixes the bad spacing "uintWindows".

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Rainer Schuetze <r.sagitario gmx.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch
                 CC|                            |r.sagitario gmx.de


--- Comment #4 from Rainer Schuetze <r.sagitario gmx.de> 2009-09-23 14:04:11
PDT ---
the patch is against dmd 2.032

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--- Comment #5 from Don <clugdbug yahoo.com.au> 2009-09-24 00:23:59 PDT ---
You're a legend! This was on my list of ten most worst bugs in DMD.

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Sep 24 2009
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Walter Bright <bugzilla digitalmars.com> changed:

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


--- Comment #6 from Walter Bright <bugzilla digitalmars.com> 2009-10-06
02:13:17 PDT ---
Fixed dmd 1.048 and 2.033

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Oct 06 2009