From 21cee25b27e9c55025d317d66c2ac5862c11baa8 Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Fri, 21 Jul 2017 01:19:34 +0100
Subject: [PATCH] Replace .and_then() with .map() wherever it makes sense.

---
 src/delay.rs        |  2 +-
 src/iq.rs           |  4 ++--
 src/message.rs      |  4 ++--
 src/presence.rs     |  4 ++--
 src/pubsub/event.rs | 16 ++++++++--------
 src/stanza_error.rs |  2 +-
 6 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/src/delay.rs b/src/delay.rs
index b96db2bd..e5123ec2 100644
--- a/src/delay.rs
+++ b/src/delay.rs
@@ -49,7 +49,7 @@ impl From<Delay> for Element {
     fn from(delay: Delay) -> Element {
         Element::builder("delay")
                 .ns(ns::DELAY)
-                .attr("from", delay.from.and_then(|value| Some(String::from(value))))
+                .attr("from", delay.from.map(String::from))
                 .attr("stamp", delay.stamp.to_rfc3339())
                 .append(delay.data)
                 .build()
diff --git a/src/iq.rs b/src/iq.rs
index aab1efcb..1eae2549 100644
--- a/src/iq.rs
+++ b/src/iq.rs
@@ -272,8 +272,8 @@ impl From<Iq> for Element {
     fn from(iq: Iq) -> Element {
         let mut stanza = Element::builder("iq")
                                  .ns(ns::JABBER_CLIENT)
-                                 .attr("from", iq.from.and_then(|value| Some(String::from(value))))
-                                 .attr("to", iq.to.and_then(|value| Some(String::from(value))))
+                                 .attr("from", iq.from.map(String::from))
+                                 .attr("to", iq.to.map(String::from))
                                  .attr("id", iq.id)
                                  .attr("type", &iq.payload)
                                  .build();
diff --git a/src/message.rs b/src/message.rs
index ea560425..29234321 100644
--- a/src/message.rs
+++ b/src/message.rs
@@ -204,8 +204,8 @@ impl From<Message> for Element {
     fn from(message: Message) -> Element {
         Element::builder("message")
                 .ns(ns::JABBER_CLIENT)
-                .attr("from", message.from.and_then(|value| Some(String::from(value))))
-                .attr("to", message.to.and_then(|value| Some(String::from(value))))
+                .attr("from", message.from.map(String::from))
+                .attr("to", message.to.map(String::from))
                 .attr("id", message.id)
                 .attr("type", message.type_)
                 .append(message.subjects.into_iter()
diff --git a/src/presence.rs b/src/presence.rs
index fe970e3b..93c5cf94 100644
--- a/src/presence.rs
+++ b/src/presence.rs
@@ -317,8 +317,8 @@ impl From<Presence> for Element {
     fn from(presence: Presence) -> Element {
         Element::builder("presence")
                 .ns(ns::JABBER_CLIENT)
-                .attr("from", presence.from.and_then(|value| Some(String::from(value))))
-                .attr("to", presence.to.and_then(|value| Some(String::from(value))))
+                .attr("from", presence.from.map(String::from))
+                .attr("to", presence.to.map(String::from))
                 .attr("id", presence.id)
                 .attr("type", presence.type_)
                 .append(presence.show)
diff --git a/src/pubsub/event.rs b/src/pubsub/event.rs
index ef5e994b..04519e96 100644
--- a/src/pubsub/event.rs
+++ b/src/pubsub/event.rs
@@ -31,7 +31,7 @@ impl From<Item> for Element {
                 .ns(ns::PUBSUB_EVENT)
                 .attr("id", item.id)
                 .attr("node", item.node)
-                .attr("publisher", item.publisher.and_then(|publisher| Some(String::from(publisher))))
+                .attr("publisher", item.publisher.map(String::from))
                 .append(item.payload)
                 .build()
     }
@@ -222,11 +222,11 @@ impl From<PubSubEvent> for Element {
                 Element::builder("purge")
                         .ns(ns::PUBSUB_EVENT)
                         .attr("node", node)
-                        .append(redirect.and_then(|redirect| {
-                             Some(Element::builder("redirect")
-                                                  .ns(ns::PUBSUB_EVENT)
-                                                  .attr("uri", redirect)
-                                                  .build())
+                        .append(redirect.map(|redirect| {
+                             Element::builder("redirect")
+                                     .ns(ns::PUBSUB_EVENT)
+                                     .attr("uri", redirect)
+                                     .build()
                          }))
                         .build()
             },
@@ -260,8 +260,8 @@ impl From<PubSubEvent> for Element {
                 Element::builder("subscription")
                         .ns(ns::PUBSUB_EVENT)
                         .attr("node", node)
-                        .attr("expiry", expiry.and_then(|expiry| Some(expiry.to_rfc3339())))
-                        .attr("jid", jid.and_then(|jid| Some(String::from(jid))))
+                        .attr("expiry", expiry.map(|expiry| expiry.to_rfc3339()))
+                        .attr("jid", jid.map(String::from))
                         .attr("subid", subid)
                         .attr("subscription", subscription)
                         .build()
diff --git a/src/stanza_error.rs b/src/stanza_error.rs
index 4a83b8dc..3b7273b3 100644
--- a/src/stanza_error.rs
+++ b/src/stanza_error.rs
@@ -177,7 +177,7 @@ impl From<StanzaError> for Element {
         let mut root = Element::builder("error")
                                .ns(ns::JABBER_CLIENT)
                                .attr("type", err.type_)
-                               .attr("by", err.by.and_then(|by| Some(String::from(by))))
+                               .attr("by", err.by.map(String::from))
                                .append(err.defined_condition)
                                .build();
         for (lang, text) in err.texts {