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digitalmars.D.bugs - [Issue 13643] New: memoize lazy parameter evaluation


          Issue ID: 13643
           Summary: memoize lazy parameter evaluation
           Product: D
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: DMD
          Assignee: nobody puremagic.com
          Reporter: code dawg.eu

Currently D's lazy parameters use call-by-name, i.e. the expression is
evaluated whenever referenced. Historically lazy refers to call-by-need
evaluation where the result is cached on first use.

We could at least do it for pure expressions that are referenced multiple

Oct 21 2014