Add extending by binding

src/errors.ts

@@ -4,7 +4,7 @@ export class MuseError extends Error {
   }
 }
 
-export class ResourceFileError extends MuseError {
+export class FileError extends MuseError {
   filePath: string;
   details?: string;
 
@@ -18,3 +18,15 @@ export class ResourceFileError extends MuseError {
     return `-- ${this.message} --\nFile Path: ${this.filePath}\nDetails: ${this.details}`;
   }
 }
+
+export class MalformedResourceFileError extends FileError { }
+
+export class FileNotFoundError extends FileError {
+  constructor(filePath: string) {
+    super("File not found", filePath);
+    this.message = "File not found";
+    this.filePath = filePath;
+  }
+}
+
+export class CLIError extends MuseError { }