pkg reflect, method (Value) CanComplex() bool
pkg reflect, method (Value) CanFloat() bool
pkg reflect, method (Value) CanInt() bool
pkg reflect, method (Value) CanUint() bool
pkg reflect, method (Value) FieldByIndexErr([]int) (Value, error)
pkg reflect, method (Value) SetIterKey(*MapIter)
pkg reflect, method (Value) SetIterValue(*MapIter)
pkg reflect, method (Value) UnsafePointer() unsafe.Pointer

	// It's not a method; must be a field of a struct or an element of a map.
	switch receiver.Kind() {
	case reflect.Struct:
		tField, ok := receiver.Type().FieldByName(fieldName)
		if ok {
			field, err := receiver.FieldByIndexErr(tField.Index)
			if !tField.IsExported() {
				s.errorf("%s is an unexported field of struct type %s", fieldName, typ)
			}
			if err != nil {
				s.errorf("%v", err)
			}