refactor: Move js task runner into own directory (#11146)

packages/@n8n/task-runner/src/js-task-runner/errors/validation-error.ts

@@ -0,0 +1,44 @@
+import { ApplicationError } from 'n8n-workflow';
+
+export class ValidationError extends ApplicationError {
+	description = '';
+
+	itemIndex: number | undefined = undefined;
+
+	context: { itemIndex: number } | undefined = undefined;
+
+	lineNumber: number | undefined = undefined;
+
+	constructor({
+		message,
+		description,
+		itemIndex,
+		lineNumber,
+	}: {
+		message: string;
+		description: string;
+		itemIndex?: number;
+		lineNumber?: number;
+	}) {
+		super(message);
+
+		this.lineNumber = lineNumber;
+		this.itemIndex = itemIndex;
+
+		if (this.lineNumber !== undefined && this.itemIndex !== undefined) {
+			this.message = `${message} [line ${lineNumber}, for item ${itemIndex}]`;
+		} else if (this.lineNumber !== undefined) {
+			this.message = `${message} [line ${lineNumber}]`;
+		} else if (this.itemIndex !== undefined) {
+			this.message = `${message} [item ${itemIndex}]`;
+		} else {
+			this.message = message;
+		}
+
+		this.description = description;
+
+		if (this.itemIndex !== undefined) {
+			this.context = { itemIndex: this.itemIndex };
+		}
+	}
+}