chore: Rust 1.79と1.80で追加された機能を利用する

crates/downloader/Cargo.toml

@@ -19,7 +19,6 @@ futures-util.workspace = true
 indicatif.workspace = true
 itertools.workspace = true
 octocrab = { workspace = true, default-features = false, features = ["rustls-tls", "stream"] }
-once_cell.workspace = true
 parse-display.workspace = true
 rayon.workspace = true
 reqwest = { workspace = true, default-features = false, features = ["rustls-tls", "stream"] }

crates/downloader/src/main.rs

@@ -5,7 +5,7 @@ use std::{
     future::Future,
     io::{self, Cursor, Read},
     path::{Path, PathBuf},
-    sync::Arc,
+    sync::{Arc, LazyLock},
     time::Duration,
 };
 
@@ -24,7 +24,6 @@ use octocrab::{
     },
     Octocrab,
 };
-use once_cell::sync::Lazy;
 use rayon::iter::{IntoParallelIterator as _, ParallelIterator as _};
 use strum::{Display, IntoStaticStr};
 use tokio::task::{JoinError, JoinSet};
@@ -43,7 +42,7 @@ const DEFAULT_CORE_REPO: &str = "VOICEVOX/voicevox_core";
 const DEFAULT_ONNXRUNTIME_BUILDER_REPO: &str = "VOICEVOX/onnxruntime-builder";
 const DEFAULT_ADDITIONAL_LIBRARIES_REPO: &str = "VOICEVOX/voicevox_additional_libraries";
 
-static OPEN_JTALK_DIC_URL: Lazy<Url> = Lazy::new(|| {
+static OPEN_JTALK_DIC_URL: LazyLock<Url> = LazyLock::new(|| {
     "https://jaist.dl.sourceforge.net/project/open-jtalk/Dictionary/open_jtalk_dic-1.11/open_jtalk_dic_utf_8-1.11.tar.gz"
         .parse()
         .unwrap()
@@ -449,8 +448,8 @@ fn find_onnxruntime(
 ) -> anyhow::Result<String> {
     macro_rules! selector {
         ($expr:expr $(,)?) => {{
-            static SELECTOR: Lazy<scraper::Selector> =
-                Lazy::new(|| scraper::Selector::parse($expr).expect("should be valid"));
+            static SELECTOR: LazyLock<scraper::Selector> =
+                LazyLock::new(|| scraper::Selector::parse($expr).expect("should be valid"));
             &SELECTOR
         }};
     }
@@ -595,8 +594,8 @@ fn add_progress_bar(
 
     const INTERVAL: Duration = Duration::from_millis(100);
 
-    static PROGRESS_STYLE: Lazy<ProgressStyle> =
-        Lazy::new(|| ProgressStyle::with_template("{prefix}").unwrap());
+    static PROGRESS_STYLE: LazyLock<ProgressStyle> =
+        LazyLock::new(|| ProgressStyle::with_template("{prefix}").unwrap());
 }
 
 async fn download_and_extract(
@@ -614,15 +613,15 @@ async fn download_and_extract(
     let files = &read_archive(archive, archive_kind, pb.clone()).await?;
     return extract(files, stripping, output, pb).await;
 
-    static PROGRESS_STYLE1: Lazy<ProgressStyle> = Lazy::new(|| {
+    static PROGRESS_STYLE1: LazyLock<ProgressStyle> = LazyLock::new(|| {
         ProgressStyle::with_template(
             "{prefix:55} {bytes:>11} {bytes_per_sec:>13} {elapsed_precise} {bar} {percent:>3}%",
         )
         .unwrap()
     });
 
-    static PROGRESS_STYLE2: Lazy<ProgressStyle> =
-        Lazy::new(|| ProgressStyle::with_template("{prefix:55} {spinner} {msg}").unwrap());
+    static PROGRESS_STYLE2: LazyLock<ProgressStyle> =
+        LazyLock::new(|| ProgressStyle::with_template("{prefix:55} {spinner} {msg}").unwrap());
 
     async fn with_style(
         pb: ProgressBar,

crates/test_util/Cargo.toml

@@ -4,7 +4,6 @@ edition.workspace = true
 
 [dependencies]
 libloading.workspace = true
-once_cell.workspace = true
 serde = { workspace = true, features = ["derive"] }
 serde_json.workspace = true
 

crates/test_util/src/lib.rs

@@ -17,7 +17,7 @@ pub mod c_api {
     pub const VV_MODELS_ROOT_DIR: &str = super::VV_MODELS_ROOT_DIR;
 }
 
-use once_cell::sync::Lazy;
+use std::sync::LazyLock;
 
 pub use self::typing::{
     DecodeExampleData, DurationExampleData, ExampleData, IntonationExampleData,
@@ -36,6 +36,6 @@ const EXAMPLE_DATA_JSON: &str = include_str!(concat!(
     "/data/example_data.json"
 ));
 
-pub static EXAMPLE_DATA: Lazy<ExampleData> = Lazy::new(|| {
+pub static EXAMPLE_DATA: LazyLock<ExampleData> = LazyLock::new(|| {
     serde_json::from_str(EXAMPLE_DATA_JSON).expect("failed to parse example_data.json")
 });

crates/voicevox_core/Cargo.toml

@@ -32,7 +32,6 @@ indexmap = { workspace = true, features = ["serde"] }
 itertools.workspace = true
 jlabel.workspace = true
 ndarray.workspace = true
-once_cell.workspace = true
 open_jtalk.workspace = true
 ouroboros.workspace = true
 rayon.workspace = true

crates/voicevox_core/src/engine/acoustic_feature_extractor.rs

@@ -1,7 +1,7 @@
+use std::{collections::HashMap, sync::LazyLock};
+
 use derive_getters::Getters;
 use derive_new::new;
-use once_cell::sync::Lazy;
-use std::collections::HashMap;
 
 #[rustfmt::skip]
 const PHONEME_LIST: &[&str] = &[
@@ -52,7 +52,7 @@ const PHONEME_LIST: &[&str] = &[
     "z",
 ];
 
-static PHONEME_MAP: Lazy<HashMap<&str, i64>> = Lazy::new(|| {
+static PHONEME_MAP: LazyLock<HashMap<&str, i64>> = LazyLock::new(|| {
     let mut m = HashMap::new();
     for (i, s) in PHONEME_LIST.iter().enumerate() {
         m.insert(*s, i as i64);
@@ -70,8 +70,8 @@ pub(crate) struct OjtPhoneme {
 }
 
 impl OjtPhoneme {
-    pub(crate) fn num_phoneme() -> usize {
-        PHONEME_MAP.len()
+    pub(crate) const fn num_phoneme() -> usize {
+        PHONEME_LIST.len() // == PHONEME_MAP.len()
     }
 
     fn space_phoneme() -> String {

crates/voicevox_core/src/engine/kana_parser.rs

@@ -1,7 +1,10 @@
-use crate::engine::model::{AccentPhrase, Mora};
-use crate::engine::mora_list::MORA_LIST_MINIMUM;
-use once_cell::sync::Lazy;
 use std::collections::HashMap;
+use std::sync::LazyLock;
+
+use crate::engine::{
+    model::{AccentPhrase, Mora},
+    mora_list::MORA_LIST_MINIMUM,
+};
 
 const UNVOICE_SYMBOL: char = '_';
 const ACCENT_SYMBOL: char = '\'';
@@ -16,7 +19,7 @@ pub(crate) struct KanaParseError(String);
 
 type KanaParseResult<T> = std::result::Result<T, KanaParseError>;
 
-static TEXT2MORA_WITH_UNVOICE: Lazy<HashMap<String, Mora>> = Lazy::new(|| {
+static TEXT2MORA_WITH_UNVOICE: LazyLock<HashMap<String, Mora>> = LazyLock::new(|| {
     let mut text2mora_with_unvoice = HashMap::new();
     for [text, consonant, vowel] in MORA_LIST_MINIMUM {
         let consonant = if !consonant.is_empty() {

crates/voicevox_core/src/infer/domains/talk.rs

@@ -1,9 +1,8 @@
-use std::collections::BTreeSet;
+use std::{collections::BTreeSet, sync::LazyLock};
 
 use enum_map::Enum;
 use macros::{InferenceInputSignature, InferenceOperation, InferenceOutputSignature};
 use ndarray::{Array0, Array1, Array2};
-use once_cell::sync::Lazy;
 
 use crate::StyleType;
 
@@ -17,7 +16,8 @@ impl InferenceDomain for TalkDomain {
     type Operation = TalkOperation;
 
     fn style_types() -> &'static BTreeSet<StyleType> {
-        static STYLE_TYPES: Lazy<BTreeSet<StyleType>> = Lazy::new(|| [StyleType::Talk].into());
+        static STYLE_TYPES: LazyLock<BTreeSet<StyleType>> =
+            LazyLock::new(|| [StyleType::Talk].into());
         &STYLE_TYPES
     }
 }

crates/voicevox_core/src/infer/session_set.rs

@@ -61,8 +61,8 @@ impl<R: InferenceRuntime, D: InferenceDomain> InferenceSessionSet<R, D> {
                 .iter()
                 .map(|ParamInfo { name, dt, ndim }| {
                     let brackets = match *ndim {
-                        Some(ndim) => "[]".repeat(ndim),
-                        None => "[]...".to_owned(),
+                        Some(ndim) => &"[]".repeat(ndim),
+                        None => "[]...",
                     };
                     format!("{name}: {dt}{brackets}")
                 })
@@ -74,8 +74,7 @@ impl<R: InferenceRuntime, D: InferenceDomain> InferenceSessionSet<R, D> {
 impl<R: InferenceRuntime, D: InferenceDomain> InferenceSessionSet<R, D> {
     pub(crate) fn get<I>(&self) -> InferenceSessionCell<R, I>
     where
-        I: InferenceInputSignature,
-        I::Signature: InferenceSignature<Domain = D>,
+        I: InferenceInputSignature<Signature: InferenceSignature<Domain = D>>,
     {
         InferenceSessionCell {
             inner: self.0[I::Signature::OPERATION].clone(),

crates/voicevox_core/src/metas.rs

@@ -209,12 +209,13 @@ pub enum StyleType {
 
 #[cfg(test)]
 mod tests {
-    use once_cell::sync::Lazy;
+    use std::sync::LazyLock;
+
     use serde_json::json;
 
     #[test]
     fn merge_works() -> anyhow::Result<()> {
-        static INPUT: Lazy<serde_json::Value> = Lazy::new(|| {
+        static INPUT: LazyLock<serde_json::Value> = LazyLock::new(|| {
             json!([
                 {
                     "name": "B",
@@ -267,7 +268,7 @@ mod tests {
             ])
         });
 
-        static EXPECTED: Lazy<serde_json::Value> = Lazy::new(|| {
+        static EXPECTED: LazyLock<serde_json::Value> = LazyLock::new(|| {
             json!([
                 {
                     "name": "A",

crates/voicevox_core/src/synthesizer.rs

@@ -265,12 +265,12 @@ pub(crate) mod blocking {
             } = audio_query;
 
             let accent_phrases = if options.enable_interrogative_upspeak {
-                adjust_interrogative_accent_phrases(accent_phrases)
+                &adjust_interrogative_accent_phrases(accent_phrases)
             } else {
-                accent_phrases.clone()
+                accent_phrases
             };
 
-            let (flatten_moras, phoneme_data_list) = initial_process(&accent_phrases);
+            let (flatten_moras, phoneme_data_list) = initial_process(accent_phrases);
 
             let mut phoneme_length_list = vec![*pre_phoneme_length];
             let mut f0_list = vec![0.];
@@ -318,7 +318,7 @@ pub(crate) mod blocking {
 
             let (_, _, vowel_indexes) = split_mora(&phoneme_data_list);
 
-            let mut phoneme: Vec<Vec<f32>> = Vec::new();
+            let mut phoneme = Vec::new();
             let mut f0: Vec<f32> = Vec::new();
             {
                 const RATE: f32 = 24000. / 256.;
@@ -335,7 +335,7 @@ pub(crate) mod blocking {
                     let phoneme_id = phoneme_data_list[i].phoneme_id();
 
                     for _ in 0..phoneme_length {
-                        let mut phonemes_vec = vec![0.; OjtPhoneme::num_phoneme()];
+                        let mut phonemes_vec = [0.; OjtPhoneme::num_phoneme()];
                         phonemes_vec[phoneme_id as usize] = 1.;
                         phoneme.push(phonemes_vec)
                     }
@@ -352,14 +352,11 @@ pub(crate) mod blocking {
                 }
             }
 
-            // 2次元のvectorを1次元に変換し、アドレスを連続させる
-            let flatten_phoneme = phoneme.into_iter().flatten().collect::<Vec<_>>();
-
             let wave = &self.decode(
                 f0.len(),
                 OjtPhoneme::num_phoneme(),
                 &f0,
-                &flatten_phoneme,
+                phoneme.as_flattened(),
                 style_id,
             )?;
             return Ok(to_wav(wave, audio_query));

crates/voicevox_core/src/user_dict/part_of_speech_data.rs

@@ -1,5 +1,5 @@
-use once_cell::sync::Lazy;
 use std::collections::HashMap;
+use std::sync::LazyLock;
 
 use crate::UserDictWordType;
 
@@ -30,8 +30,8 @@ pub(super) struct PartOfSpeechDetail {
 }
 
 // 元データ： https://github.com/VOICEVOX/voicevox_engine/blob/master/voicevox_engine/part_of_speech_data.py
-pub(super) static PART_OF_SPEECH_DETAIL: Lazy<HashMap<UserDictWordType, PartOfSpeechDetail>> =
-    Lazy::new(|| {
+pub(super) static PART_OF_SPEECH_DETAIL: LazyLock<HashMap<UserDictWordType, PartOfSpeechDetail>> =
+    LazyLock::new(|| {
         HashMap::from_iter([
             (
                 UserDictWordType::ProperNoun,

crates/voicevox_core/src/user_dict/word.rs

@@ -1,14 +1,15 @@
+use std::{ops::RangeToInclusive, sync::LazyLock};
+
+use regex::Regex;
+use serde::{de::Error as _, Deserialize, Serialize};
+
 use crate::{
     error::ErrorRepr,
     result::Result,
     user_dict::part_of_speech_data::{
         priority2cost, MAX_PRIORITY, MIN_PRIORITY, PART_OF_SPEECH_DETAIL,
     },
 };
-use once_cell::sync::Lazy;
-use regex::Regex;
-use serde::{de::Error as _, Deserialize, Serialize};
-use std::ops::RangeToInclusive;
 
 /// ユーザー辞書の単語。
 #[derive(Clone, Debug, Serialize)]
@@ -77,8 +78,9 @@ impl InvalidWordError {
 
 type InvalidWordResult<T> = std::result::Result<T, InvalidWordError>;
 
-static PRONUNCIATION_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"^[ァ-ヴー]+$").unwrap());
-static MORA_REGEX: Lazy<Regex> = Lazy::new(|| {
+static PRONUNCIATION_REGEX: LazyLock<Regex> =
+    LazyLock::new(|| Regex::new(r"^[ァ-ヴー]+$").unwrap());
+static MORA_REGEX: LazyLock<Regex> = LazyLock::new(|| {
     Regex::new(concat!(
         "(?:",
         "[イ][ェ]|[ヴ][ャュョ]|[トド][ゥ]|[テデ][ィャュョ]|[デ][ェ]|[クグ][ヮ]|", // rule_others
@@ -89,7 +91,7 @@ static MORA_REGEX: Lazy<Regex> = Lazy::new(|| {
     ))
     .unwrap()
 });
-static SPACE_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\p{Z}").unwrap());
+static SPACE_REGEX: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"\p{Z}").unwrap());
 
 impl Default for UserDictWord {
     fn default() -> Self {

crates/voicevox_core/src/voice_model.rs

@@ -454,7 +454,8 @@ pub(crate) mod tokio {
 
 #[cfg(test)]
 mod tests {
-    use once_cell::sync::Lazy;
+    use std::sync::LazyLock;
+
     use rstest::{fixture, rstest};
     use serde_json::json;
 
@@ -501,7 +502,7 @@ mod tests {
         assert_eq!(expected, actual);
     }
 
-    static TALK_MANIFEST: Lazy<TalkManifest> = Lazy::new(|| TalkManifest {
+    static TALK_MANIFEST: LazyLock<TalkManifest> = LazyLock::new(|| TalkManifest {
         predict_duration_filename: "".to_owned(),
         predict_intonation_filename: "".to_owned(),
         decode_filename: "".to_owned(),