first commit

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

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+/**
+ * Makes the given error's `message` and `stack` properties enumerable
+ * so they can be serialized with JSON.stringify
+ */
+export function makeSerializable(error: Error) {
+	Object.defineProperties(error, {
+		message: {
+			value: error.message,
+			enumerable: true,
+			configurable: true,
+		},
+		stack: {
+			value: error.stack,
+			enumerable: true,
+			configurable: true,
+		},
+	});
+
+	return error;
+}
+
+/**
+ * Error that has its message property serialized as well. Used to transport
+ * errors over the wire.
+ */
+export abstract class SerializableError extends Error {
+	constructor(message: string) {
+		super(message);
+
+		makeSerializable(this);
+	}
+}