Revert #503 定数化されたものを関数へ戻します

Cargo.toml

@@ -12,7 +12,6 @@ members = [
 anyhow = "1.0.65"
 async_zip = { version = "0.0.11", features = ["full"] }
 clap = { version = "4.0.10", features = ["derive"] }
-const-default = { version = "1.0.0", features = ["derive"] }
 easy-ext = "1.0.1"
 fs-err = { version = "2.9.0", features = ["tokio"] }
 itertools = "0.10.5"

crates/voicevox_core/Cargo.toml

@@ -12,10 +12,8 @@ directml = ["onnxruntime/directml"]
 anyhow.workspace = true
 async_zip.workspace = true
 cfg-if = "1.0.0"
-const-default.workspace = true
 derive-getters.workspace = true
 derive-new = "0.5.9"
-duplicate = "1.0.0"
 easy-ext.workspace = true
 fs-err.workspace = true
 futures = "0.3.26"

crates/voicevox_core/src/version.rs

@@ -1,15 +1,13 @@
-/// 本クレートの`package.version`。
-///
-/// C APIやPython API側からこの値が使われるべきではない。
-/// 現在はまだRust APIを外部提供していないため、この定数はどこからも参照されていないはずである。
-pub const VERSION: &str = env!("CARGO_PKG_VERSION");
+pub const fn get_version() -> &'static str {
+    env!("CARGO_PKG_VERSION")
+}
 
 #[cfg(test)]
 mod tests {
     use super::*;
     use crate::*;
     #[rstest]
     fn get_version_works() {
-        assert_eq!("0.0.0", VERSION);
+        assert_eq!("0.0.0", get_version());
     }
 }

crates/voicevox_core/src/voice_synthesizer.rs

@@ -1,8 +1,5 @@
 use std::sync::Arc;
 
-use const_default::ConstDefault;
-use duplicate::duplicate_item;
-
 use crate::engine::{create_kana, parse_kana, AccentPhraseModel, OpenJtalk, SynthesisEngine};
 
 use super::*;
@@ -25,12 +22,12 @@ impl From<&TtsOptions> for SynthesisOptions {
     }
 }
 
-#[derive(ConstDefault)]
+#[derive(Default)]
 pub struct AccentPhrasesOptions {
     pub kana: bool,
 }
 
-#[derive(ConstDefault)]
+#[derive(Default)]
 pub struct AudioQueryOptions {
     pub kana: bool,
 }
@@ -52,45 +49,30 @@ impl AsRef<TtsOptions> for TtsOptions {
     }
 }
 
-impl ConstDefault for TtsOptions {
-    const DEFAULT: Self = Self {
-        enable_interrogative_upspeak: true,
-        kana: ConstDefault::DEFAULT,
-    };
+impl Default for TtsOptions {
+    fn default() -> Self {
+        Self {
+            enable_interrogative_upspeak: true,
+            kana: Default::default(),
+        }
+    }
 }
 
-#[derive(Debug, PartialEq, Eq)]
+#[derive(Default, Debug, PartialEq, Eq)]
 pub enum AccelerationMode {
+    #[default]
     Auto,
     Cpu,
     Gpu,
 }
 
-impl ConstDefault for AccelerationMode {
-    const DEFAULT: Self = Self::Auto;
-}
-
-#[derive(ConstDefault)]
+#[derive(Default)]
 pub struct InitializeOptions {
     pub acceleration_mode: AccelerationMode,
     pub cpu_num_threads: u16,
     pub load_all_models: bool,
 }
 
-#[duplicate_item(
-    T;
-    [ AccentPhrasesOptions ];
-    [ AudioQueryOptions ];
-    [ TtsOptions ];
-    [ AccelerationMode ];
-    [ InitializeOptions ];
-)]
-impl Default for T {
-    fn default() -> Self {
-        Self::DEFAULT
-    }
-}
-
 /// 音声シンセサイザ
 pub struct Synthesizer {
     synthesis_engine: SynthesisEngine,

crates/voicevox_core_c_api/Cargo.toml

@@ -16,7 +16,6 @@ name = "e2e"
 directml = ["voicevox_core/directml"]
 
 [dependencies]
-const-default.workspace = true
 derive-getters.workspace = true
 libc = "0.2.134"
 once_cell.workspace = true