From cdf0f1aa13212d6936f4455a259660f22a7b1220 Mon Sep 17 00:00:00 2001
From: tarepan <tarepan5884@gmail.com>
Date: Mon, 27 Nov 2023 00:39:22 +0000
Subject: [PATCH] Refactor phoneme handler by removing base class

---
 test/test_acoustic_feature_extractor.py       | 26 +------
 voicevox_engine/acoustic_feature_extractor.py | 71 +------------------
 2 files changed, 4 insertions(+), 93 deletions(-)

diff --git a/test/test_acoustic_feature_extractor.py b/test/test_acoustic_feature_extractor.py
index df0b7ad62..a2a520c21 100644
--- a/test/test_acoustic_feature_extractor.py
+++ b/test/test_acoustic_feature_extractor.py
@@ -1,31 +1,9 @@
 from unittest import TestCase
 
-from voicevox_engine.acoustic_feature_extractor import BasePhoneme, OjtPhoneme
+from voicevox_engine.acoustic_feature_extractor import OjtPhoneme
 
 
-class TestBasePhoneme(TestCase):
-    def setUp(self):
-        super().setUp()
-        self.str_hello_hiho = "sil k o N n i ch i w a pau h i h o d e s U sil"
-        self.base_hello_hiho = [
-            BasePhoneme(s, i, i + 1) for i, s in enumerate(self.str_hello_hiho.split())
-        ]
-
-    def test_repr_(self):
-        self.assertEqual(
-            self.base_hello_hiho[1].__repr__(), "Phoneme(phoneme='k', start=1, end=2)"
-        )
-        self.assertEqual(
-            self.base_hello_hiho[10].__repr__(),
-            "Phoneme(phoneme='pau', start=10, end=11)",
-        )
-
-    def test_convert(self):
-        with self.assertRaises(NotImplementedError):
-            BasePhoneme.convert(self.base_hello_hiho)
-
-
-class TestOjtPhoneme(TestBasePhoneme):
+class TestOjtPhoneme(TestCase):
     def setUp(self):
         super().setUp()
         str_hello_hiho = "sil k o N n i ch i w a pau h i h o d e s U sil"
diff --git a/voicevox_engine/acoustic_feature_extractor.py b/voicevox_engine/acoustic_feature_extractor.py
index 7fa0e9f25..e14e7c62e 100644
--- a/voicevox_engine/acoustic_feature_extractor.py
+++ b/voicevox_engine/acoustic_feature_extractor.py
@@ -1,76 +1,9 @@
-from abc import abstractmethod
-from typing import List, Sequence
+from typing import List
 
 import numpy
 
 
-class BasePhoneme(object):
-    """
-    音素の応用クラス群の抽象基底クラス
-
-    Attributes
-    ----------
-    phoneme_list : Sequence[str]
-        音素のリスト
-    num_phoneme : int
-        音素リストの要素数
-    space_phoneme : str
-        読点に値する音素
-    """
-
-    phoneme_list: Sequence[str]
-    num_phoneme: int
-    space_phoneme: str
-
-    def __init__(
-        self,
-        phoneme: str,
-        start: float,
-        end: float,
-    ):
-        self.phoneme = phoneme
-        self.start = numpy.round(start, decimals=2)
-        self.end = numpy.round(end, decimals=2)
-
-    def __repr__(self):
-        return f"Phoneme(phoneme='{self.phoneme}', start={self.start}, end={self.end})"
-
-    def __eq__(self, o: object):
-        return isinstance(o, BasePhoneme) and (
-            self.phoneme == o.phoneme and self.start == o.start and self.end == o.end
-        )
-
-    @property
-    def phoneme_id(self):
-        """
-        phoneme_id (phoneme list内でのindex)を取得する
-        Returns
-        -------
-        id : int
-            phoneme_idを返す
-        """
-        return self.phoneme_list.index(self.phoneme)
-
-    @property
-    def onehot(self):
-        """
-        phoneme listの長さ分の0埋め配列のうち、phoneme id番目がTrue(1)の配列を返す
-        Returns
-        -------
-        onehot : numpu.ndarray
-            関数内で変更された配列を返す
-        """
-        array = numpy.zeros(self.num_phoneme, dtype=bool)
-        array[self.phoneme_id] = True
-        return array
-
-    @classmethod
-    @abstractmethod
-    def convert(cls, phonemes: List["BasePhoneme"]) -> List["BasePhoneme"]:
-        raise NotImplementedError
-
-
-class OjtPhoneme(BasePhoneme):
+class OjtPhoneme:
     """
     OpenJTalkに含まれる音素群クラス