From 0195219d5c0b0ff1486b3e6bdcd62a807d3d2932 Mon Sep 17 00:00:00 2001
From: Jokler <jokler.contact@gmail.com>
Date: Tue, 10 Oct 2017 17:48:30 +0200
Subject: Create plugin_derive to replace the register_plugin macro

---
 src/lib.rs              | 10 +++++-----
 src/plugin.rs           | 29 +++++------------------------
 src/plugins/currency.rs | 14 +++++++++-----
 src/plugins/emoji.rs    | 13 ++++++++-----
 4 files changed, 27 insertions(+), 39 deletions(-)

(limited to 'src')

diff --git a/src/lib.rs b/src/lib.rs
index ca1aafe..04210a6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,11 +13,12 @@
 
 #[macro_use]
 extern crate lazy_static;
+#[macro_use]
+extern crate plugin_derive;
 
 extern crate irc;
 extern crate regex;
 
-#[macro_use]
 mod plugin;
 mod plugins;
 
@@ -28,8 +29,7 @@ use irc::client::prelude::*;
 use irc::proto::Command::PRIVMSG;
 use irc::error::Error as IrcError;
 
-use plugin::Plugin;
-use plugin::PluginCommand;
+use plugin::*;
 
 /// Runs the bot
 ///
@@ -49,7 +49,7 @@ pub fn run() {
     // if they use an incorrect plugin name
     let plugin_names: Vec<String> = plugins
         .iter()
-        .map(|p| p.lock().unwrap().to_string().to_lowercase())
+        .map(|p| p.lock().unwrap().name().to_lowercase())
         .collect();
 
     // The main loop over received messages
@@ -101,7 +101,7 @@ pub fn run() {
                     // Check if the command is for this plugin
                     if let Some(mut c) = command {
                         if !c.tokens.is_empty() &&
-                           plugin.to_string().to_lowercase() == c.tokens[0].to_lowercase() {
+                           plugin.name().to_lowercase() == c.tokens[0].to_lowercase() {
 
                             // The first token contains the name of the plugin
                             c.tokens.remove(0);
diff --git a/src/plugin.rs b/src/plugin.rs
index 3791bf1..0a4034d 100644
--- a/src/plugin.rs
+++ b/src/plugin.rs
@@ -2,38 +2,19 @@ use std::fmt;
 use irc::client::prelude::*;
 use irc::error::Error as IrcError;
 
-pub trait Plugin: Send + Sync + fmt::Display + fmt::Debug {
+pub trait Plugin: PluginName + Send + Sync + fmt::Debug {
     fn is_allowed(&self, server: &IrcServer, message: &Message) -> bool;
     fn execute(&mut self, server: &IrcServer, message: &Message) -> Result<(), IrcError>;
     fn command(&mut self, server: &IrcServer, command: PluginCommand) -> Result<(), IrcError>;
 }
 
+pub trait PluginName: Send + Sync + fmt::Debug {
+    fn name(&self) -> &str;
+}
+
 #[derive(Clone, Debug)]
 pub struct PluginCommand {
     pub source: String,
     pub target: String,
     pub tokens: Vec<String>,
 }
-
-macro_rules! register_plugin {
-    ($t:ident) => {
-        use std::fmt;
-
-        #[derive(Debug)]
-        pub struct $t {
-            _name: &'static str,
-        }
-
-        impl fmt::Display for $t {
-            fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-                write!(f, "{}", self._name)
-            }
-        }
-
-        impl $t {
-            pub fn new() -> $t {
-                $t { _name: stringify!($t) }
-            }
-        }
-    };
-}
diff --git a/src/plugins/currency.rs b/src/plugins/currency.rs
index b2320ac..d29e560 100644
--- a/src/plugins/currency.rs
+++ b/src/plugins/currency.rs
@@ -6,14 +6,14 @@ extern crate regex;
 use std::io::Read;
 use irc::client::prelude::*;
 use irc::error::Error as IrcError;
-use plugin::Plugin;
 use self::reqwest::Client;
 use self::reqwest::header::Connection;
 use self::serde_json::Value;
 
-use PluginCommand;
+use plugin::*;
 
-register_plugin!(Currency);
+#[derive(PluginName, Debug)]
+pub struct Currency;
 
 struct ConvertionRequest<'a> {
     value: f64,
@@ -62,6 +62,11 @@ impl<'a> ConvertionRequest<'a> {
 }
 
 impl Currency {
+
+    pub fn new() -> Currency {
+        Currency {}
+    }
+
     fn eval_command<'a>(&self, tokens: &'a [String]) -> Option<ConvertionRequest<'a>> {
         let parsed = match tokens[0].parse() {
             Ok(v) => v,
@@ -144,5 +149,4 @@ impl Plugin for Currency {
 }
 
 #[cfg(test)]
-mod tests {
-}
+mod tests {}
diff --git a/src/plugins/emoji.rs b/src/plugins/emoji.rs
index c7054d8..b08b1b7 100644
--- a/src/plugins/emoji.rs
+++ b/src/plugins/emoji.rs
@@ -2,12 +2,16 @@ extern crate unicode_names;
 
 use irc::client::prelude::*;
 use irc::error::Error as IrcError;
-use plugin::Plugin;
-use PluginCommand;
 
-register_plugin!(Emoji);
+use plugin::*;
 
+#[derive(PluginName, Debug)]
+pub struct Emoji;
 impl Emoji {
+    pub fn new() -> Emoji {
+        Emoji {}
+    }
+
     fn emoji(&self, server: &IrcServer, content: &str, target: &str) -> Result<(), IrcError> {
 
         let mut names: Vec<String> = Vec::new();
@@ -73,5 +77,4 @@ impl Plugin for Emoji {
 }
 
 #[cfg(test)]
-mod tests {
-}
+mod tests {}
-- 
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