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digitalmars.D.bugs - [Issue 4494] New: [ICE] Array literal filled with results of void function

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4494

           Summary: [ICE] Array literal filled with results of void
                    function
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc



void foo() {}
void main() {
    [foo];
}


Dmd 2.047 prints:
Internal error: ..\ztc\cod1.c 2650

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Jul 23 2010
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4494


Iain Buclaw <ibuclaw ubuntu.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ibuclaw ubuntu.com
         OS/Version|Windows                     |All



Changing platform to All (affects Linux too).

Similar code:

void[] p = [cast(void)42];

As of DMD-2.051, now prints:
Internal error: ../ztc/cod1.c 3057

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Jan 01 2011
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4494


Iain Buclaw <ibuclaw ubuntu.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch



diff --git a/src/expression.c b/src/expression.c
index 9d116b9..1bd9e42 100644
--- a/src/expression.c
+++ b/src/expression.c
   -3200,6 +3200,10    Expression *ArrayLiteralExp::semantic(Scope *sc)
     type = t0->arrayOf();
     //type = new TypeSArray(t0, new IntegerExp(elements->dim));
     type = type->semantic(loc, sc);
+
+    if (type->nextOf()->ty == Tvoid)
+        error("array literal of type void[] has no value");
+
     return this;
 }

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Apr 11 2011
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4494




Maybe

  if (type->nextOf()->ty == Tvoid)
      error("%s of type void[] has no value", toChars());


Is a better error message (I really am no good at writing them :)

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Apr 11 2011
prev sibling next sibling parent d-bugmail puremagic.com writes:
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Oops, previous patch didn't take into account that empty '[]' array literals
are allowed to be void.

diff --git a/src/expression.c b/src/expression.c
index 9d116b9..1e68ce7 100644
--- a/src/expression.c
+++ b/src/expression.c
   -3197,6 +3197,9    Expression *ArrayLiteralExp::semantic(Scope *sc)
     Type *t0;
     elements = arrayExpressionToCommonType(sc, elements, &t0);

+    if (elements->dim > 0 && t0->ty == Tvoid)
+        error("array literal %s has no value", toChars());
+
     type = t0->arrayOf();
     //type = new TypeSArray(t0, new IntegerExp(elements->dim));
     type = type->semantic(loc, sc);

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Apr 14 2011
prev sibling next sibling parent d-bugmail puremagic.com writes:
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kennytm gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pszturmaj tlen.pl



*** Issue 5929 has been marked as a duplicate of this issue. ***

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May 05 2011
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4494


Walter Bright <bugzilla digitalmars.com> changed:

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



00:57:54 PDT ---
https://github.com/D-Programming-Language/dmd/commit/dbdbeb1ed9890e317c0fbb594dd331f18d025864

https://github.com/D-Programming-Language/dmd/commit/d7096004298cdbffa4f4889be47d8f6ee627fdfc

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Jun 29 2011