Accept a slice of args in help commands

The help commands don't actually need to have the arguments passed by
value, so passing them by reference is fine.

4 files changed, 5 insertions, 5 deletions

diff --git a/src/ext/framework/command.rs b/src/ext/framework/command.rs
index 70ee4ff..76ca416 100644
--- a/src/ext/framework/command.rs
+++ b/src/ext/framework/command.rs
@@ -7,7 +7,7 @@ use std::collections::HashMap;
 
 pub type Check = Fn(&mut Context, &Message) -> bool + Send + Sync + 'static;
 pub type Exec = Fn(&mut Context, &Message, Vec<String>) -> Result<(), String> + Send + Sync + 'static;
-pub type Help = Fn(&mut Context, &Message, HashMap<String, Arc<CommandGroup>>, Vec<String>) -> Result<(), String> + Send + Sync + 'static;
+pub type Help = Fn(&mut Context, &Message, HashMap<String, Arc<CommandGroup>>, &[String]) -> Result<(), String> + Send + Sync + 'static;
 pub type BeforeHook = Fn(&mut Context, &Message, &String) -> bool + Send + Sync + 'static;
 pub type AfterHook = Fn(&mut Context, &Message, &String, Result<(), String>) + Send + Sync + 'static;
 #[doc(hidden)]
diff --git a/src/ext/framework/create_command.rs b/src/ext/framework/create_command.rs
index 7f2c25f..512e82c 100644
--- a/src/ext/framework/create_command.rs
+++ b/src/ext/framework/create_command.rs
@@ -112,7 +112,7 @@ impl CreateCommand {
     ///
     /// You can return `Err(string)` if there's an error.
     pub fn exec_help<F>(mut self, f: F) -> Self
-        where F: Fn(&mut Context, &Message, HashMap<String, Arc<CommandGroup>>, Vec<String>) -> Result<(), String> + Send + Sync + 'static {
+        where F: Fn(&mut Context, &Message, HashMap<String, Arc<CommandGroup>>, &[String]) -> Result<(), String> + Send + Sync + 'static {
         self.0.exec = CommandType::WithCommands(Box::new(f));
 
         self
diff --git a/src/ext/framework/help_commands.rs b/src/ext/framework/help_commands.rs
index cee0e5e..1f38bd5 100644
--- a/src/ext/framework/help_commands.rs
+++ b/src/ext/framework/help_commands.rs
@@ -54,7 +54,7 @@ fn remove_aliases(cmds: &HashMap<String, CommandOrAlias>) -> HashMap<&String, &I
 pub fn with_embeds(ctx: &mut Context,
                    _: &Message,
                    groups: HashMap<String, Arc<CommandGroup>>,
-                   args: Vec<String>) -> Result<(), String> {
+                   args: &[String]) -> Result<(), String> {
     if !args.is_empty() {
         let name = args.join(" ");
 
@@ -179,7 +179,7 @@ pub fn with_embeds(ctx: &mut Context,
 pub fn plain(ctx: &mut Context,
              _: &Message,
              groups: HashMap<String, Arc<CommandGroup>>,
-             args: Vec<String>) -> Result<(), String> {
+             args: &[String]) -> Result<(), String> {
     if !args.is_empty() {
         let name = args.join(" ");
 
diff --git a/src/ext/framework/mod.rs b/src/ext/framework/mod.rs
index 5ff67ec..d0cc179 100644
--- a/src/ext/framework/mod.rs
+++ b/src/ext/framework/mod.rs
@@ -512,7 +512,7 @@ impl Framework {
                                     (x)(&mut context, &message, args)
                                 },
                                 CommandType::WithCommands(ref x) => {
-                                    (x)(&mut context, &message, groups, args)
+                                    (x)(&mut context, &message, groups, &args)
                                 }
                             };