ReflectionClassDef.java 文件源码

@Nonnull @Override public Set<? extends Field> getFields() {
    return new AbstractSet<Field>() {
        @Nonnull @Override public Iterator<Field> iterator() {
            return Iterators.transform(Iterators.forArray(cls.getDeclaredFields()),
                    new Function<java.lang.reflect.Field, Field>() {
                        @Nullable @Override public Field apply(@Nullable java.lang.reflect.Field input) {
                            return new ReflectionField(input);
                        }
                    });
        }

        @Override public int size() {
            return cls.getDeclaredFields().length;
        }
    };
}