[Issue 10038] New: Poor error for undefined variable in template args using UFCS on UDT

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10038

           Summary: Poor error for undefined variable in template args
                    using UFCS on UDT
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: peter.alexander.au at gmail.com


--- Comment #0 from Peter Alexander <peter.alexander.au at gmail.com> 2013-05-07 09:48:17 PDT ---
--------------------------------
struct S {}
int foo(alias A)(S s) { return 1; }
int baderror = S().foo!(X);
--------------------------------


Error is:
bug.d(3): Error: no property 'foo' for type 'S'


Ideally would be:
bug.d(3): Error: undefined identifier X.


This can be quite problematic in large UFCS chain expressions, like what you
get when using ranges. A small typo can take quite a while to track down with
the current diagnostics.

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