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addTaskUnlessCancelled(priority:operation:)

Adds a child task to the group, unless the group has been canceled. Returns a boolean value indicating if the task was successfully added to the group or not.

Declaration

mutating func addTaskUnlessCancelled(priority: TaskPriority? = nil, operation: sending @escaping @isolated(any) () async throws -> Void) -> Bool

Parameters

  • priority:

    The priority of the operation task. Omit this parameter or pass nil to inherit the task group’s base priority.

  • operation:

    The operation to execute as part of the task group.

Return Value

true if the child task was added to the group; otherwise false.

Discussion

This method doesn’t throw an error, even if the child task does. Instead, the corresponding call to ThrowingTaskGroup.next() rethrows that error.