func processPitches(v types.Value) (pitches []PitchDef) {
switch v := v.(type) {
case types.List:
for i := uint64(0); i < v.Len(); i++ {
pitches = append(pitches, processPitches(v.Get(i))...)
}
case MapOfStringToValue:
if checkPitch(v) {
pitches = append(pitches, getPitch(v))
}
case nil:
return // Yes, an at-bat can end with no pitches thrown.
default:
d.Chk.Fail("Impossible pitch", "No pitch should be %+v, which is of type %s!\n", v, reflect.TypeOf(v).String())
}
return
}