From 958a00608023e34ba865d349d3d319f77d81e262 Mon Sep 17 00:00:00 2001
From: yuta0709 <yf20030709@gmail.com>
Date: Fri, 5 Sep 2025 14:23:56 +0900
Subject: [PATCH 1/2] fix: prevent token mutation

---
 src/no-doubled-joshi.ts |  6 +++---
 src/token-utils.ts      | 10 ++++++----
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/no-doubled-joshi.ts b/src/no-doubled-joshi.ts
index 39bb050..6612cdb 100644
--- a/src/no-doubled-joshi.ts
+++ b/src/no-doubled-joshi.ts
@@ -275,7 +275,7 @@ const report: TextlintRuleModule<Options> = function (context, options = {}) {
                     }
                     // strict mode ではない時例外を除去する
                     if (!isStrict) {
-                        if (matchExceptionRule(joshiTokenSurfaceTokens, tokens)) {
+                        if (matchExceptionRule(joshiTokenSurfaceTokens, concatedJoshiTokens)) {
                             return;
                         }
                     }
@@ -292,11 +292,11 @@ const report: TextlintRuleModule<Options> = function (context, options = {}) {
                         if (differenceIndex <= minInterval) {
                             // 連続する助詞を集める
                             const startWord = toTextWithPrevWord(prev, {
-                                tokens: tokens,
+                                tokens: concatedJoshiTokens,
                                 sentence: sentence
                             });
                             const endWord = toTextWithPrevWord(current, {
-                                tokens: tokens,
+                                tokens: concatedJoshiTokens,
                                 sentence: sentence
                             });
                             // padding positionを計算する
diff --git a/src/token-utils.ts b/src/token-utils.ts
index 1db70c4..decf2e5 100644
--- a/src/token-utils.ts
+++ b/src/token-utils.ts
@@ -36,10 +36,12 @@ export const create読点Matcher = (commaCharacters: string[]) => {
  * @returns {Object}
  */
 const concatToken = (aToken: KuromojiToken, bToken: KuromojiToken) => {
-    aToken.surface_form += bToken.surface_form;
-    aToken.pos += bToken.pos;
-    aToken.pos_detail_1 += bToken.surface_form;
-    return aToken;
+    return {
+        ...aToken,
+        surface_form: aToken.surface_form + bToken.surface_form,
+        pos: aToken.pos + bToken.pos,
+        pos_detail_1: aToken.pos_detail_1 + bToken.surface_form
+    };
 };
 /**
  * 助詞+助詞 というように連続しているtokenを結合し直したtokenの配列を返す

From 7bd8254467fa6bcd6507596c2df0ca5a661963e9 Mon Sep 17 00:00:00 2001
From: azu <azuciao@gmail.com>
Date: Fri, 5 Sep 2025 23:20:11 +0900
Subject: [PATCH 2/2] fix: accept readonly array in concatJoishiTokens function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fixed TypeScript compilation error where concatJoishiTokens was expecting
a mutable array but received a readonly array from the tokenize function.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 src/token-utils.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/token-utils.ts b/src/token-utils.ts
index decf2e5..5cbe1cc 100644
--- a/src/token-utils.ts
+++ b/src/token-utils.ts
@@ -48,7 +48,7 @@ const concatToken = (aToken: KuromojiToken, bToken: KuromojiToken) => {
  * @param {Array} tokens
  * @returns {Array}
  */
-export const concatJoishiTokens = (tokens: KuromojiToken[]) => {
+export const concatJoishiTokens = (tokens: readonly KuromojiToken[]) => {
     const newTokens: KuromojiToken[] = [];
     tokens.forEach((token) => {
         const prevToken = newTokens[newTokens.length - 1];