Switch from #[doc(hidden)] to pub(crate)

Switch from using `#[doc(hidden)]` to hide some internal functions to
`pub(crate)`.

The library now requires rustc 1.18.

2 files changed, 8 insertions, 9 deletions

diff --git a/src/model/channel/message.rs b/src/model/channel/message.rs
index 930c046..15200fe 100644
--- a/src/model/channel/message.rs
+++ b/src/model/channel/message.rs
@@ -232,8 +232,7 @@ impl Message {
         }
     }
 
-    #[doc(hidden)]
-    pub fn transform_content(&mut self) {
+    pub(crate) fn transform_content(&mut self) {
         match self.kind {
             MessageType::PinsAdd => {
                 self.content = format!("{} pinned a message to this channel. See all the pins.", self.author);
@@ -497,8 +496,7 @@ impl Message {
         self.reaction_users(reaction_type, limit, after)
     }
 
-    #[doc(hidden)]
-    pub fn check_content_length(map: &JsonMap) -> Result<()> {
+    pub(crate) fn check_content_length(map: &JsonMap) -> Result<()> {
         if let Some(content) = map.get("content") {
             if let Value::String(ref content) = *content {
                 if let Some(length_over) = Message::overflow_length(content) {
@@ -510,8 +508,7 @@ impl Message {
         Ok(())
     }
 
-    #[doc(hidden)]
-    pub fn check_embed_length(map: &JsonMap) -> Result<()> {
+    pub(crate) fn check_embed_length(map: &JsonMap) -> Result<()> {
         let embed = match map.get("embed") {
             Some(&Value::Object(ref value)) => value,
             _ => return Ok(()),
diff --git a/src/model/event.rs b/src/model/event.rs
index bbb60c7..86825fa 100644
--- a/src/model/event.rs
+++ b/src/model/event.rs
@@ -2,7 +2,9 @@
 
 use chrono::{DateTime, FixedOffset};
 use serde::de::Error as DeError;
-use serde_json::{self, Error as JsonError};
+use serde_json;
+#[cfg(feature="voice")] 
+use serde_json::Error as JsonError;
 use std::collections::HashMap;
 use super::utils::deserialize_emojis;
 use super::*;
@@ -737,8 +739,8 @@ pub enum VoiceEvent {
 }
 
 impl VoiceEvent {
-    #[doc(hidden)]
-    pub fn decode(value: Value) -> Result<VoiceEvent> {
+    #[cfg(feature="voice")]
+    pub(crate) fn decode(value: Value) -> Result<VoiceEvent> {
         let mut map = JsonMap::deserialize(value)?;
 
         let op = match map.remove("op") {