Add no-shadow

8 files changed, 32 insertions, 31 deletions

diff --git a/.eslintrc.json b/.eslintrc.json
index b21c00f4..cfee7be8 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -26,6 +26,7 @@
         "no-const-assign": "error",
         "no-constant-condition": "off",
         "no-global-assign": "error",
+        "no-shadow": ["error", {"builtinGlobals": false}],
         "no-undef": "error",
         "no-unneeded-ternary": "error",
         "no-unused-vars": ["error", {"vars": "local", "args": "after-used", "argsIgnorePattern": "^_", "caughtErrors": "none"}],
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index 7c71f82c..2691b7d9 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -274,18 +274,18 @@ class Backend {
                 const node = nodes.pop();
                 for (const key of Object.keys(node.obj)) {
                     const path = node.path.concat(key);
-                    const obj = node.obj[key];
-                    if (obj !== null && typeof obj === 'object') {
-                        nodes.unshift({obj, path});
+                    const obj2 = node.obj[key];
+                    if (obj2 !== null && typeof obj2 === 'object') {
+                        nodes.unshift({obj: obj2, path});
                     } else {
-                        valuePaths.push([obj, path]);
+                        valuePaths.push([obj2, path]);
                     }
                 }
             }
             return valuePaths;
         }
 
-        function modifyOption(path, value, options) {
+        function modifyOption(path, value) {
             let pivot = options;
             for (const key of path.slice(0, -1)) {
                 if (!hasOwn(pivot, key)) {
@@ -298,7 +298,7 @@ class Backend {
         }
 
         for (const [value, path] of getValuePaths(changedOptions)) {
-            modifyOption(path, value, options);
+            modifyOption(path, value);
         }
 
         await this._onApiOptionsSave({source});
@@ -340,9 +340,9 @@ class Backend {
                 dictTermsSort(definitions);
                 const {expression, reading} = definitions[0];
                 const source = text.substring(0, sourceLength);
-                for (const {text, furigana} of jpDistributeFuriganaInflected(expression, reading, source)) {
-                    const reading = jpConvertReading(text, furigana, options.parsing.readingMode);
-                    term.push({text, reading});
+                for (const {text: text2, furigana} of jpDistributeFuriganaInflected(expression, reading, source)) {
+                    const reading2 = jpConvertReading(text2, furigana, options.parsing.readingMode);
+                    term.push({text: text2, reading: reading2});
                 }
                 text = text.substring(source.length);
             } else {
@@ -365,17 +365,17 @@ class Backend {
                 for (const {expression, reading, source} of parsedLine) {
                     const term = [];
                     if (expression !== null && reading !== null) {
-                        for (const {text, furigana} of jpDistributeFuriganaInflected(
+                        for (const {text: text2, furigana} of jpDistributeFuriganaInflected(
                             expression,
                             jpKatakanaToHiragana(reading),
                             source
                         )) {
-                            const reading = jpConvertReading(text, furigana, options.parsing.readingMode);
-                            term.push({text, reading});
+                            const reading2 = jpConvertReading(text2, furigana, options.parsing.readingMode);
+                            term.push({text: text2, reading: reading2});
                         }
                     } else {
-                        const reading = jpConvertReading(source, null, options.parsing.readingMode);
-                        term.push({text: source, reading});
+                        const reading2 = jpConvertReading(source, null, options.parsing.readingMode);
+                        term.push({text: source, reading: reading2});
                     }
                     result.push(term);
                 }
@@ -816,12 +816,12 @@ class Backend {
 
         try {
             const tabWindow = await new Promise((resolve, reject) => {
-                chrome.windows.get(tab.windowId, {}, (tabWindow) => {
+                chrome.windows.get(tab.windowId, {}, (value) => {
                     const e = chrome.runtime.lastError;
                     if (e) {
                         reject(e);
                     } else {
-                        resolve(tabWindow);
+                        resolve(value);
                     }
                 });
             });
diff --git a/ext/bg/js/database.js b/ext/bg/js/database.js
index 1f6810cf..558f3ceb 100644
--- a/ext/bg/js/database.js
+++ b/ext/bg/js/database.js
@@ -809,9 +809,9 @@ class Database {
             for (const objectStoreName of objectStoreNames) {
                 const {primaryKey, indices} = stores[objectStoreName];
 
-                const objectStoreNames = transaction.objectStoreNames || db.objectStoreNames;
+                const objectStoreNames2 = transaction.objectStoreNames || db.objectStoreNames;
                 const objectStore = (
-                    Database._listContains(objectStoreNames, objectStoreName) ?
+                    Database._listContains(objectStoreNames2, objectStoreName) ?
                     transaction.objectStore(objectStoreName) :
                     db.createObjectStore(objectStoreName, primaryKey)
                 );
diff --git a/ext/bg/js/japanese.js b/ext/bg/js/japanese.js
index e8a6fa08..abb32da4 100644
--- a/ext/bg/js/japanese.js
+++ b/ext/bg/js/japanese.js
@@ -224,15 +224,15 @@ function jpDistributeFurigana(expression, reading) {
     }
 
     let isAmbiguous = false;
-    const segmentize = (reading, groups) => {
+    const segmentize = (reading2, groups) => {
         if (groups.length === 0 || isAmbiguous) {
             return [];
         }
 
         const group = groups[0];
         if (group.mode === 'kana') {
-            if (jpKatakanaToHiragana(reading).startsWith(jpKatakanaToHiragana(group.text))) {
-                const readingLeft = reading.substring(group.text.length);
+            if (jpKatakanaToHiragana(reading2).startsWith(jpKatakanaToHiragana(group.text))) {
+                const readingLeft = reading2.substring(group.text.length);
                 const segs = segmentize(readingLeft, groups.splice(1));
                 if (segs) {
                     return [{text: group.text}].concat(segs);
@@ -240,9 +240,9 @@ function jpDistributeFurigana(expression, reading) {
             }
         } else {
             let foundSegments = null;
-            for (let i = reading.length; i >= group.text.length; --i) {
-                const readingUsed = reading.substring(0, i);
-                const readingLeft = reading.substring(i);
+            for (let i = reading2.length; i >= group.text.length; --i) {
+                const readingUsed = reading2.substring(0, i);
+                const readingLeft = reading2.substring(i);
                 const segs = segmentize(readingLeft, groups.slice(1));
                 if (segs) {
                     if (foundSegments !== null) {
diff --git a/ext/bg/js/json-schema.js b/ext/bg/js/json-schema.js
index 3cf24c35..58f804fd 100644
--- a/ext/bg/js/json-schema.js
+++ b/ext/bg/js/json-schema.js
@@ -401,7 +401,7 @@ class JsonSchemaProxyHandler {
             info.valuePush(i, propertyValue);
             JsonSchemaProxyHandler.validate(propertyValue, propertySchema, info);
             info.valuePop();
-            for (let i = 0; i < schemaPath.length; ++i) { info.schemaPop(); }
+            for (let j = 0, jj = schemaPath.length; j < jj; ++j) { info.schemaPop(); }
         }
     }
 
diff --git a/ext/bg/js/search.js b/ext/bg/js/search.js
index 76a62b97..98e167ad 100644
--- a/ext/bg/js/search.js
+++ b/ext/bg/js/search.js
@@ -70,7 +70,7 @@ class DisplaySearch extends Display {
                         this.wanakanaEnable.checked = false;
                     }
                     this.wanakanaEnable.addEventListener('change', (e) => {
-                        const {queryParams: {query=''}} = parseUrl(window.location.href);
+                        const {queryParams: {query: query2=''}} = parseUrl(window.location.href);
                         if (e.target.checked) {
                             window.wanakana.bind(this.query);
                             apiOptionsSet({general: {enableWanakana: true}}, this.getOptionsContext());
@@ -78,7 +78,7 @@ class DisplaySearch extends Display {
                             window.wanakana.unbind(this.query);
                             apiOptionsSet({general: {enableWanakana: false}}, this.getOptionsContext());
                         }
-                        this.setQuery(query);
+                        this.setQuery(query2);
                         this.onSearchQueryUpdated(this.query.value, false);
                     });
                 }
diff --git a/ext/bg/js/settings/dictionaries.js b/ext/bg/js/settings/dictionaries.js
index 427f47f0..70a22a16 100644
--- a/ext/bg/js/settings/dictionaries.js
+++ b/ext/bg/js/settings/dictionaries.js
@@ -166,7 +166,7 @@ class SettingsDictionaryListUI {
         delete n.dataset.dict;
         $(n).modal('hide');
 
-        const index = this.dictionaryEntries.findIndex((e) => e.dictionaryInfo.title === title);
+        const index = this.dictionaryEntries.findIndex((entry) => entry.dictionaryInfo.title === title);
         if (index >= 0) {
             this.dictionaryEntries[index].deleteDictionary();
         }
diff --git a/ext/mixed/js/core.js b/ext/mixed/js/core.js
index 330a30fb..83813796 100644
--- a/ext/mixed/js/core.js
+++ b/ext/mixed/js/core.js
@@ -160,9 +160,9 @@ function promiseTimeout(delay, resolveValue) {
     const resolve = (value) => complete(promiseResolve, value);
     const reject = (value) => complete(promiseReject, value);
 
-    const promise = new Promise((resolve, reject) => {
-        promiseResolve = resolve;
-        promiseReject = reject;
+    const promise = new Promise((resolve2, reject2) => {
+        promiseResolve = resolve2;
+        promiseReject = reject2;
     });
     timer = window.setTimeout(() => {
         timer = null;