feat(ql3): establish 3.0 incubation baseline

back/runtime/domain/cancellationDispatchErrors.ts

@@ -0,0 +1,46 @@
+export class CancellationDispatchError extends Error {
+  constructor(
+    message: string,
+    public readonly code: string,
+    public readonly retryable = false,
+    public readonly cause?: unknown,
+  ) {
+    super(message);
+    this.name = new.target.name;
+  }
+}
+
+export class InvalidCancellationDispatchCommandError extends CancellationDispatchError {
+  constructor(message: string) {
+    super(message, 'INVALID_CANCELLATION_DISPATCH_COMMAND');
+  }
+}
+
+export class CancellationDispatchBindingConflictError extends CancellationDispatchError {
+  constructor(runId: string, attemptId: string) {
+    super(
+      `Cancellation dispatch for Run ${runId} is already bound to another Attempt than ${attemptId}`,
+      'CANCELLATION_DISPATCH_BINDING_CONFLICT',
+    );
+  }
+}
+
+export class CancellationDispatchFenceRejectedError extends CancellationDispatchError {
+  constructor(runId: string) {
+    super(
+      `Cancellation dispatch lease for Run ${runId} is stale or no longer owned by this worker`,
+      'CANCELLATION_DISPATCH_FENCE_REJECTED',
+    );
+  }
+}
+
+export class CancellationDispatchRepositoryError extends CancellationDispatchError {
+  constructor(cause?: unknown) {
+    super(
+      'Cancellation dispatch repository operation failed',
+      'CANCELLATION_DISPATCH_REPOSITORY_FAILED',
+      false,
+      cause,
+    );
+  }
+}