}
		if err := goodFunc(name, v.Type()); err != nil {
			panic(err)
		}
		out[name] = v
	}
}

// addFuncs adds to values the functions in funcs. It does no checking of the input -
// call addValueFuncs first.
func addFuncs(out, in FuncMap) {
	for name, fn := range in {
		out[name] = fn
	}
}

		}
	} else if numIn != typ.NumIn() {
		s.errorf("wrong number of args for %s: want %d got %d", name, typ.NumIn(), numIn)
	}
	if err := goodFunc(name, typ); err != nil {
		s.errorf("%v", err)
	}

	unwrap := func(v reflect.Value) reflect.Value {
		if v.Type() == reflectValueType {
			v = v.Interface().(reflect.Value)
		}
		return v
	}