Update examples' unwraps to expects and imports as nested (#435)

1 files changed, 20 insertions, 16 deletions

diff --git a/examples/05_command_framework/src/main.rs b/examples/05_command_framework/src/main.rs
index 843fb43..3fec94b 100644
--- a/examples/05_command_framework/src/main.rs
+++ b/examples/05_command_framework/src/main.rs
@@ -13,18 +13,18 @@
 extern crate serenity;
 extern crate typemap;
 
-use serenity::client::bridge::gateway::{ShardId, ShardManager};
-use serenity::framework::standard::{Args, DispatchError, StandardFramework, HelpBehaviour, CommandOptions, help_commands};
-use serenity::model::channel::Message;
-use serenity::model::gateway::Ready;
-use serenity::model::Permissions;
-use serenity::prelude::Mutex;
-use serenity::prelude::*;
-use serenity::utils::{content_safe, ContentSafeOptions};
-use std::collections::HashMap;
-use std::env;
-use std::fmt::Write;
-use std::sync::Arc;
+use std::{collections::HashMap, env, fmt::Write, sync::Arc};
+
+use serenity::{
+    client::bridge::gateway::{ShardId, ShardManager},
+    framework::standard::{
+        help_commands, Args, CommandOptions, DispatchError, HelpBehaviour, StandardFramework,
+    },
+    model::{channel::Message, gateway::Ready, Permissions},
+    prelude::*,
+    utils::{content_safe, ContentSafeOptions},
+};
+
 use typemap::Key;
 
 // A container type is created for inserting into the Client's `data`, which
@@ -111,7 +111,7 @@ fn main() {
             // the command's name does not exist in the counter, add a default
             // value of 0.
             let mut data = ctx.data.lock();
-            let counter = data.get_mut::<CommandCounter>().unwrap();
+            let counter = data.get_mut::<CommandCounter>().expect("Expected CommandCounter in ShareMap.");
             let entry = counter.entry(command_name.to_string()).or_insert(0);
             *entry += 1;
 
@@ -130,6 +130,10 @@ fn main() {
         .unrecognised_command(|_, _, unknown_command_name| {
             println!("Could not find command named '{}'", unknown_command_name);
         })
+        // Set a function that's called whenever a message is not a command.
+        .message_without_command(|_, message| {
+            println!("Message is not a command '{}'", message.content);
+        })
         // Set a function that's called whenever a command's execution didn't complete for one
         // reason or another. For example, when a user has exceeded a rate-limit or a command
         // can only be performed by the bot owner.
@@ -244,7 +248,7 @@ command!(commands(ctx, msg, _args) {
     let mut contents = "Commands used:\n".to_string();
 
     let data = ctx.data.lock();
-    let counter = data.get::<CommandCounter>().unwrap();
+    let counter = data.get::<CommandCounter>().expect("Expected CommandCounter in ShareMap.");
 
     for (k, v) in counter {
         let _ = write!(contents, "- {name}: {amount}\n", name=k, amount=v);
@@ -354,8 +358,8 @@ command!(about_role(_ctx, msg, args) {
 //
 // Argument type overloading is currently not supported.
 command!(multiply(_ctx, msg, args) {
-    let first = args.single::<f64>().unwrap();
-    let second = args.single::<f64>().unwrap();
+    let first = args.single::<f64>()?;
+    let second = args.single::<f64>()?;
 
     let res = first * second;