scala - Is there a utility for polymorphic object creation somewhere in the standard library -


i write utility in projects:

def instance[t](implicit m: manifest[t]) =     m.erasure.newinstance.asinstanceof[t]

it looks in standard library, have not been able find it. did miss it? if not powers add :)

edit

if runtime exceptions when t lacks no-arg constructor unacceptable 1 can define

def maybeinstance[t:manifest] = try some(instance[t]) catch {case _ => none}

possibly making underlying instance function private. however, many standard functions throw runtime exceptions, including division & many networking operation.


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