Allow compiling with only either cache or methods

Some of the methods relied on the cache being present. Now, these
methods only conditionally require the cache to be compiled and
present.

The cache was mainly used for checking if the current user had
permission to perform operations.

1 files changed, 11 insertions, 7 deletions

diff --git a/src/model/id.rs b/src/model/id.rs
index 9c9cb4d..d29fa2a 100644
--- a/src/model/id.rs
+++ b/src/model/id.rs
@@ -1,13 +1,15 @@
 use super::*;
 
+#[cfg(all(feature = "cache", feature = "methods"))]
+use ::client::CACHE;
 #[cfg(feature = "methods")]
-use ::client::{CACHE, http};
+use ::client::http;
 #[cfg(feature = "methods")]
 use ::internal::prelude::*;
 
 impl ChannelId {
     /// Search the cache for the channel with the Id.
-    #[cfg(feature="methods")]
+    #[cfg(all(feature = "cache", feature = "methods"))]
     pub fn find(&self) -> Option<Channel> {
         CACHE.read().unwrap().get_channel(*self)
     }
@@ -16,9 +18,11 @@ impl ChannelId {
     /// requested over REST.
     #[cfg(feature="methods")]
     pub fn get(&self) -> Result<Channel> {
-        if let Some(channel) = CACHE.read().unwrap().get_channel(*self) {
-            return Ok(channel.clone());
-        }
+        feature_cache_enabled! {{
+            if let Some(channel) = CACHE.read().unwrap().get_channel(*self) {
+                return Ok(channel.clone());
+            }
+        }}
 
         http::get_channel(self.0)
     }
@@ -75,7 +79,7 @@ impl From<Emoji> for EmojiId {
 
 impl GuildId {
     /// Search the cache for the guild.
-    #[cfg(feature="methods")]
+    #[cfg(all(feature = "cache", feature="methods"))]
     pub fn find(&self) -> Option<Guild> {
         CACHE.read().unwrap().get_guild(*self).cloned()
     }
@@ -161,7 +165,7 @@ impl From<Role> for RoleId {
 
 impl RoleId {
     /// Search the cache for the role.
-    #[cfg(feature="methods")]
+    #[cfg(all(feature = "cache", feature = "methods"))]
     pub fn find(&self) -> Option<Role> {
         CACHE.read()
             .unwrap()