Summary: opOpAssign!("~=") for std.array.Appender
           Product: D
           Version: future
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos

--- Comment #0 from 2010-06-06 08:40:02 PDT ---
In std.array.Appender I'd like to use opOpAssign!("~=") instead of the put()
member function. Is this possible? This is handy because in some situations I
can almost replace a dynamic array with an Appender, keeping the same appends
~= unchanged in the code.

std.array.Appender can even support two more operations (with complexity O(n ln
n) or better) that I have found sometimes useful in my D1 code that uses a
struct similar to Appender (but this is less important. Such operations can be
allowed even if Appender gets implemented for example with a deque data

- length attribute
- opIndex()

An Appender is not an array, so it's better to not support opIndexAssign or
opIndexOpAssign, etc. But peeking inside the Appender data structure with an
opIndex() can be sometimes useful and avoids converting the Appender to a whole
new array (that can be a costly operation if Appender changes its data
structure implementation).

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