[Issue 3697] New: StructTemplateDeclaration and others missing constraint in rule

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3697

           Summary: StructTemplateDeclaration and others missing
                    constraint in rule
           Product: D
           Version: 2.038
          Platform: All
               URL: http://digitalmars.com/d/2.0/template.html#UnionTempla
                    teDeclaration
        OS/Version: All
            Status: NEW
          Keywords: spec
          Severity: normal
          Priority: P2
         Component: www.digitalmars.com
        AssignedTo: nobody at puremagic.com
        ReportedBy: jlquinn at optonline.net


--- Comment #0 from Jerry Quinn <jlquinn at optonline.net> 2010-01-11 22:20:21 PST ---
The grammar defines 

StructTemplateDeclaration:
    struct Identifier ( TemplateParameterList ) StructBody

However, in this form, optional template Constraint is missing.  I think the
grammar should be:

StructTemplateDeclaration:
    struct Identifier ( TemplateParameterList ) Constraints_opt StructBody

and the compiler (2.038) agrees.

UnionTemplateDeclaration, InterfaceTemplateDeclaration, and
ClassTemplateDeclaration should be similarly updated.

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