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digitalmars.D.bugs - [Issue 21540] New: Cannot pass associative array of function


          Issue ID: 21540
           Summary: Cannot pass associative array of function pointers to
                    const AA parameter with lower attributes
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: qs.il.paperinik gmail.com

As an example, an associative array of  safe function pointers cannot be passed
to a function taking an associative array that has its value type the const
version of the corresponding  system function pointers.

    void f(const(void function())[string] aa) { }

    void main()
        void function()  safe fp = { };
        void function()  safe[string] aa = [ "a": fp ];
        f(aa); // error

For delegates instead of function pointers, the call to f compiles as it

Jan 10 2021