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digitalmars.D.bugs - [Issue 9538] New: 2.062: Can't use typeid on .ptr of static array

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=9538

           Summary: 2.062: Can't use typeid on .ptr of static array
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: regression
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: andrej.mitrovich gmail.com



14:03:27 PST ---
import std.stdio;

void main()
{
    void*[1] x;
    writeln(typeid(x.ptr));
}

2.061:
$ dmd test.d

 void**


2.062:
$ dmd test.d

 Error: void*[1u][0u] is not an lvalue


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next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=9538


Felix Hufnagel <puremagic zoadian.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |puremagic zoadian.de



PST ---
probably related:

immutable(char)*[1] szSource = [source.toStringz()]; 
glCreateShaderProgramv(TYPE, 1, szSource.ptr);

stopped working with dmd 2.062.
it does not pass the correct string to openGL.


and i still do not have my engine up running again, so these calls are probably
not working as well:

GLenum[] drawBuffers = [GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1,
GL_COLOR_ATTACHMENT2];
check!glDrawBuffers(drawBuffers.length, drawBuffers.ptr);

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prev sibling next sibling parent d-bugmail puremagic.com writes:
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14:51:32 PST ---


 probably related:
 
 immutable(char)*[1] szSource = [source.toStringz()]; 
 glCreateShaderProgramv(TYPE, 1, szSource.ptr);
 
 stopped working with dmd 2.062.
 it does not pass the correct string to openGL.


Might be related to http://d.puremagic.com/issues/show_bug.cgi?id=9539

However Issue 9539 is reproducible on 2.061 as well.

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prev sibling next sibling parent d-bugmail puremagic.com writes:
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Kenji Hara <k.hara.pg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull







 probably related:
 
 immutable(char)*[1] szSource = [source.toStringz()]; 
 glCreateShaderProgramv(TYPE, 1, szSource.ptr);
 
 stopped working with dmd 2.062.
 it does not pass the correct string to openGL.


 
 Might be related to http://d.puremagic.com/issues/show_bug.cgi?id=9539
 
 However Issue 9539 is reproducible on 2.061 as well.


This is not related to bug 9539.

https://github.com/D-Programming-Language/dmd/pull/1681

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prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=9538


Martin Nowak <code dawg.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |code dawg.eu
           Severity|regression                  |normal





 2.061:
 $ dmd test.d

 void**




I still get an error for 2.061 and 2.060.
Error: type void*[1LU] is not an expression

The error message has changed with
https://github.com/D-Programming-Language/dmd/pull/1382 to
Error: void*[1u][0u] is not an lvalue.

I've reduced the importance to normal.

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prev sibling next sibling parent d-bugmail puremagic.com writes:
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Commits pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/7c6a268b7eb9b7901e06aabdfb6aefc8a4017e5f
fix Issue 9538 - Regression (2.062): Can't use typeid on .ptr of static array

https://github.com/D-Programming-Language/dmd/commit/ba822749d2cc15ed984215eba10bd6638eeda326


Issue 9538 - Regression (2.062): Can't use typeid on .ptr of static array

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prev sibling next sibling parent d-bugmail puremagic.com writes:
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Andrej Mitrovic <andrej.mitrovich gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Regression (2.062): Can't   |Regression (2.061): Can't
                   |use typeid on .ptr of       |use typeid on .ptr of
                   |static array                |static array
           Severity|normal                      |regression



11:14:08 PST ---




 2.061:
 $ dmd test.d

 void**




 
 I still get an error for 2.061 and 2.060.
 Error: type void*[1LU] is not an expression


You must be testing it wrong, I don't get either of these errors in 2.060 and
2.061. Make sure you're calling the right DMD and if using RDMD to use --force.

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prev sibling parent d-bugmail puremagic.com writes:
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Kenji Hara <k.hara.pg gmail.com> changed:

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







 2.061:
 $ dmd test.d

 void**




 
 I still get an error for 2.061 and 2.060.
 Error: type void*[1LU] is not an expression
 
 The error message has changed with
 https://github.com/D-Programming-Language/dmd/pull/1382 to
 Error: void*[1u][0u] is not an lvalue.
 
 I've reduced the importance to normal.


This is actually regression. It was introduced by fixing bug 8913.

Before fixing 8913, following wrong expression had allowed.

    alias X = int[1];
    pragma(msg, typeof(X.ptr)); // printed int*
    auto p = X.ptr;     // compiled with -o- switch

After that, it correctly be rejected in compilation phase (currently it shows
some poor error message, and I think we should improve it), but it had take out
another hidden problem in TypeQualified::resolveHelper.

The typeid operand "x.ptr" is *parsed* as a type, then resolved in
TypeIdn\entifier::resolve to the actual expression. But, the process in
resolveHelper had a bug that rewrites x.ptr to typeof(x).ptr. The 'ptr'
property for array type should be treated as like as built-in stringof and
mangleof property, but wasn't.

Finally I chose refactoring resolveHelper to fix this regression. During it, I


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