go - 为什么字段部分没有嵌入

Question

我有以下结构

package router

import (
    "io"
    "net/http"
    "townspeech/components/i18n"
    "townspeech/components/policy"
    "townspeech/components/session"
    "townspeech/controllers/base"
    "townspeech/types"
)

type sidHandler struct {
    req     *http.Request
    res     http.ResponseWriter
    handler sidFuncHandler
    section string
    err     *types.ErrorJSON
    sess    *session.Sid
}

我想嵌入另一个结构，如:

package router

import (
    "net/http"
    "townspeech/types"
    "townspeech/components/session"
    "townspeech/controllers/base"
)

type authHandler struct {
    sidHandler
    handler authFuncHandler
    auth    *session.Auth
}

以及使用 authHandler 结构的函数:

func registerAuthHandler(handler authFuncHandler, section string) http.Handler {
    return &authHandler{handler: handler, section: section}
}

编译器提示:

# app/router
../../../router/funcs.go:9: unknown authHandler field 'section' in struct literal
FAIL    app/test/account/validation [build failed]

如你所见，这两个结构在同一个包中，字段部分不应显示为私有(private)。
我做错了什么？

Answer 1

嵌入不适用于这样的文字。

func registerAuthHandler(handler authFuncHandler, section string) http.Handler {
    return &authHandler{
        handler: handler,
        sidHandler: sidHandler{section: section},
    }
}