[Template-haskell] Reification of local variables

Hi, I am trying to write a function which does reification on its parameters. What I understand is that the reify below will get the type information of n available at the definition of fn.

fn n = $(do info <- (reify 'n))

But how about I define fn as

fn n = do info <- (reify 'n)

then I splice $(fn x) somewhere else? Will the reify gets type information of x? Or something else? In the second case, GHC keep on complaining "`n' is not in the type environment at a reify" What is the reason for this? -W-M- @ @ | \_/