DMD (dmdfe 2.066) fail when i use UDA which store a delegate


code below works if i remove @section UDA otheswise it give this
error:

dmd: statement.c:714: ErrorStatement::ErrorStatement(): Assertion
`global.gaggedErrors || global.errors' failed.


is a bug  ?



------- CODE also on dpaste http://dpaste.dzfl.pl/3a3d660bd3bc
--------
import std.stdio;
import std.typecons : Tuple;
import std.typetuple : Filter;


struct attribute{}

@attribute
struct section( alias start, alias end)
{
     alias checkStart = start;
     alias checkEnd = end;
}

template hasSection(T)
{
     static bool helper()
     {
         foreach(memberName; __traits(allMembers, T))
         {
             foreach(attr; __traits(getAttributes,
__traits(getMember, T, memberName)))
             {
                 static if(is(attr == Section))
                     return true;
             }
         }
         return false;
     }

     enum hasSection = helper();
}

struct Data{
     @section!( ( words ) =>  words[0] == '@'                 , (
words ) =>  words[0] == '\n' )
     string a;
     @section!( ( words ) =>  words[0] > 63 && words[0] <115  , (
words ) =>  words[0] == '\n' )
     string b;
     @section!( ( words ) =>  words[0] == '+'                 , (
words ) =>  words[0] == '\n' )
     string c;
}

template toTuple(T){
     static string maker(){
         string statement = "alias toTuple = Tuple!(";
         foreach(const memberName; __traits(allMembers, T)){
             //~ mixin(`alias f = Filter!(hasSection,
__traits(getAttributes, T.` ~ memberName ~ `));`);
             statement ~=  typeof(__traits(getMember, T,
memberName)).stringof  ~ ",\"" ~ memberName ~ "\", " ;
         }
         statement = statement[0..$-2] ~ ") ;" ; // $-2 to remove
extra comma
         return statement;
     }
     mixin( maker() );
}


void main()
{
     alias A = toTuple!Data;
     A a;
     a[0] = 1;
     a.x = 1;
}

On Sunday, 1 June 2014 at 16:02:47 UTC, bioinfornatics wrote:
> DMD (dmdfe 2.066) fail when i use UDA which store a delegate
>
>
> code below works if i remove @section UDA otheswise it give this
> error:
>
> dmd: statement.c:714: ErrorStatement::ErrorStatement(): Assertion
> `global.gaggedErrors || global.errors' failed.
>
>
> is a bug  ?
>
>
>
> ------- CODE also on dpaste http://dpaste.dzfl.pl/3a3d660bd3bc
> --------
> import std.stdio;
> import std.typecons : Tuple;
> import std.typetuple : Filter;
>
>
> struct attribute{}
>
> @attribute
> struct section( alias start, alias end)
> {
>      alias checkStart = start;
>      alias checkEnd = end;
> }
>
> template hasSection(T)
> {
>      static bool helper()
>      {
>          foreach(memberName; __traits(allMembers, T))
>          {
>              foreach(attr; __traits(getAttributes,
> __traits(getMember, T, memberName)))
>              {
>                  static if(is(attr == Section))
>                      return true;
>              }
>          }
>          return false;
>      }
>
>      enum hasSection = helper();
> }
>
> struct Data{
>      @section!( ( words ) =>  words[0] == '@'                 , (
> words ) =>  words[0] == '\n' )
>      string a;
>      @section!( ( words ) =>  words[0] > 63 && words[0] <115  , (
> words ) =>  words[0] == '\n' )
>      string b;
>      @section!( ( words ) =>  words[0] == '+'                 , (
> words ) =>  words[0] == '\n' )
>      string c;
> }
>
> template toTuple(T){
>      static string maker(){
>          string statement = "alias toTuple = Tuple!(";
>          foreach(const memberName; __traits(allMembers, T)){
>              //~ mixin(`alias f = Filter!(hasSection,
> __traits(getAttributes, T.` ~ memberName ~ `));`);
>              statement ~=  typeof(__traits(getMember, T,
> memberName)).stringof  ~ ",\"" ~ memberName ~ "\", " ;
>          }
>          statement = statement[0..$-2] ~ ") ;" ; // $-2 to remove
> extra comma
>          return statement;
>      }
>      mixin( maker() );
> }
>
>
> void main()
> {
>      alias A = toTuple!Data;
>      A a;
>      a[0] = 1;
>      a.x = 1;
> }


ok it seem problem from my code a type string i need to
understand why

stupid me bug was at the end

a[0] = 1;
  become
  a[0] = "1";

but error error was so stnange to me i though that was a bug

In any case, it's an internal compiler error, so it's a bug. Users
should never see ICEs.
Could you please report it, with the entire error message?

On Sunday, 1 June 2014 at 16:18:45 UTC, Philippe Sigaud via
Digitalmars-d-learn wrote:
> In any case, it's an internal compiler error, so it's a bug. Users
> should never see ICEs.
> Could you please report it, with the entire error message?

Ok thanks is don at https://issues.dlang.org/show_bug.cgi?id=12838