The error is caused by the fact that eval sees the var as a constant (or
part of) and tries to serialize the constant.
#<Var: --unnamed--> is unreadable while #'user/x is that explains teh
difference in behaviour.


On Thu, Aug 8, 2013 at 3:40 PM, Jamie Brandon
<ja...@scattered-thoughts.net>wrote:

> This has me stumped:
>
> user=> (with-local-vars [x nil] (eval x))
> #<Var: --unnamed-->
> user=> (with-local-vars [x nil] (eval [x]))
> CompilerException java.lang.NullPointerException,
> compiling:(NO_SOURCE_PATH:1:1)
>
> By comparison:
>
> user=> (def x nil)
> #'user/x
> user=> (eval #'x)
> #'user/x
> user=> (eval [#'x])
> [#'user/x]
>
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