Replace judgment of localeKey with common method

Author: ota-meshi

lib/rules/key-format-style.ts

@@ -63,7 +63,7 @@ function create(context: RuleContext): RuleListener {
       upper?: KeyStack
     }
     let keyStack: KeyStack = {
-      inLocale: targetLocaleMessage.localeKey === 'file'
+      inLocale: targetLocaleMessage.isResolvedLocaleByFileName()
     }
     return {
       JSONProperty(node: JSONAST.JSONProperty) {
@@ -110,7 +110,7 @@ function create(context: RuleContext): RuleListener {
       upper?: KeyStack
     }
     let keyStack: KeyStack = {
-      inLocale: targetLocaleMessage.localeKey === 'file'
+      inLocale: targetLocaleMessage.isResolvedLocaleByFileName()
     }
     function withinKey(node: YAMLAST.YAMLNode) {
       for (const keyNode of yamlKeyNodes) {

lib/rules/no-duplicate-keys-in-locale.ts

@@ -47,7 +47,7 @@ function create(context: RuleContext): RuleListener {
     targetLocaleMessage: LocaleMessage,
     otherLocaleMessages: LocaleMessage[]
   ): PathStack {
-    if (targetLocaleMessage.localeKey === 'file') {
+    if (targetLocaleMessage.isResolvedLocaleByFileName()) {
       const locale = targetLocaleMessage.locales[0]
       return createInitLocalePathStack(locale, otherLocaleMessages)
     } else {

lib/rules/no-missing-keys-in-other-locales.ts

@@ -115,7 +115,7 @@ function create(context: RuleContext): RuleListener {
           }[]
         }
     let keyStack: KeyStack
-    if (targetLocaleMessage.localeKey === 'file') {
+    if (targetLocaleMessage.isResolvedLocaleByFileName()) {
       const locale = targetLocaleMessage.locales[0]
       keyStack = {
         locale,

lib/utils/locale-messages.ts

@@ -114,11 +114,15 @@ export abstract class LocaleMessage {
     return (this._locales = [])
   }
 
+  isResolvedLocaleByFileName() {
+    return this.localeKey === 'file' || this.localeKey === 'path'
+  }
+
   /**
    * Gets messages for the given locale.
    */
   getMessagesFromLocale(locale: string): I18nLocaleMessageDictionary {
-    if (this.localeKey === 'file' || this.localeKey === 'path') {
+    if (this.isResolvedLocaleByFileName()) {
       if (!this.locales.includes(locale)) {
         return {}
       }