Replace lazy_static with once_cell::sync::Lazy (#43)

* Remove lazy_static in azalea-chat

* replace lazy_static with once_cell everywhere

* fix

* fix import

* ignore a clippy warning in shape codegen

2 files changed, 9 insertions, 8 deletions

diff --git a/azalea-client/Cargo.toml b/azalea-client/Cargo.toml
index 3f67dd99..fc3f2061 100644
--- a/azalea-client/Cargo.toml
+++ b/azalea-client/Cargo.toml
@@ -19,9 +19,9 @@ azalea-crypto = {path = "../azalea-crypto", version = "0.3.0"}
 azalea-physics = {path = "../azalea-physics", version = "0.3.0"}
 azalea-protocol = {path = "../azalea-protocol", version = "0.3.0"}
 azalea-world = {path = "../azalea-world", version = "0.3.0"}
-lazy_static = "1.4.0"
 log = "0.4.17"
 nohash-hasher = "0.2.0"
+once_cell = "1.16.0"
 parking_lot = {version = "^0.12.1", features = ["deadlock_detection"]}
 regex = "1.7.0"
 thiserror = "^1.0.34"
diff --git a/azalea-client/src/chat.rs b/azalea-client/src/chat.rs
index 3a0efa95..01236630 100755
--- a/azalea-client/src/chat.rs
+++ b/azalea-client/src/chat.rs
@@ -9,8 +9,6 @@ use azalea_protocol::packets::game::{
     serverbound_chat_command_packet::ServerboundChatCommandPacket,
     serverbound_chat_packet::ServerboundChatPacket,
 };
-use lazy_static::lazy_static;
-use regex::Regex;
 use std::time::{SystemTime, UNIX_EPOCH};
 
 /// A chat packet, either a system message or a chat message.
@@ -20,6 +18,13 @@ pub enum ChatPacket {
     Player(Box<ClientboundPlayerChatPacket>),
 }
 
+macro_rules! regex {
+    ($re:literal $(,)?) => {{
+        static RE: once_cell::sync::OnceCell<regex::Regex> = once_cell::sync::OnceCell::new();
+        RE.get_or_init(|| regex::Regex::new($re).unwrap())
+    }};
+}
+
 impl ChatPacket {
     /// Get the message shown in chat for this packet.
     pub fn message(&self) -> Component {
@@ -49,11 +54,7 @@ impl ChatPacket {
                 }
                 // It's a system message, so we'll have to match the content
                 // with regex
-                lazy_static! {
-                    static ref ANGLE_BRACKETS_RE: Regex =
-                        Regex::new("^<([a-zA-Z_0-9]{1,16})> (.+)$").unwrap();
-                }
-                if let Some(m) = ANGLE_BRACKETS_RE.captures(&message) {
+                if let Some(m) = regex!("^<([a-zA-Z_0-9]{1,16})> (.+)$").captures(&message) {
                     return (Some(m[1].to_string()), m[2].to_string());
                 }