From 846ec8f898924b116ee25c2f0224a881e9ef447b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Sommer?= <joerg@jo-so.de>
Date: Fri, 7 Jun 2019 22:18:01 +0200
Subject: [PATCH] Convert `len() > 0` to `! is_empty()`

`cargo clippy` suggested to use `is_empty()` instead of `len() > 0`,
because this doesn't require to calculate the whole length of the sequence.

See: <https://rust-lang.github.io/rust-clippy/master/index.html#len_zero>
---
 src/main.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index d483f28..efbe024 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -255,7 +255,7 @@ fn main() {
                     sg
                 )
                 .unwrap();
-                if new_entry.state_map.len() > 0 {
+                if !new_entry.state_map.is_empty() {
                     writeln!(output, "INSERT INTO state_groups_state (state_group, room_id, type, state_key, event_id) VALUES").unwrap();
                     let mut first = true;
                     for ((t, s), e) in new_entry.state_map.iter() {