Scala Def Macros - How do I get the parameterized type member of a symbol? -

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i'm trying parameterized type of member on symbol in macro context. have symbol available (can't use weaktypeof[list[blah]]) because iterating on bunch of classes.

val mewantarg = classsymbol.member("paramlist": termname).typesignature

returns... 

=> list[iwantthis]

how iwantthis type object???

i've tried:

mewantarg.typesymbol.astype.typeparams //returns list(type a)

i've tried extraction:

typeref(_,_,args) = mewantarg //returns ()

keep in mind, using 2.10.2 macro plugin.

i guessing => iwantthis paramlist not val arity-0 method without parentheses:

def paramlist: list[iwantthis] = ???

if so, member method type, , have return type of method before extracting arguments it:

val mewantarg = classsymbol.member("paramlist": termname).asmethod.returntype val typeref(_,_,args) = mewantarg

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