throw if an existing theme definition is being overriden without spec…

…ifically opting to override
elastic · Jan 2, 2025 · 3db0b7a · 3db0b7a
1 parent a36e3db
commit 3db0b7a
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/packages/kbn-monaco/src/monaco_imports.ts b/packages/kbn-monaco/src/monaco_imports.ts
@@ -82,8 +82,12 @@ Object.defineProperties(monaco.editor, {
   registerLanguageThemeResolver: {
     value: (
       langId: string,
-      languageThemeDefinition: CustomLangModuleType['languageThemeResolver']
+      languageThemeDefinition: CustomLangModuleType['languageThemeResolver'],
+      forceOverride?: boolean
     ) => {
+      if (!forceOverride && languageThemeResolverDefinitions.has(langId)) {
+        return new Error(`Language theme resolver for ${langId} is already registered`);
+      }
       languageThemeResolverDefinitions.set(langId, languageThemeDefinition);
     },
     enumerable: true,