Backpressure Generator

[GenerateBackpressurePolicy] emits a static factory for BackpressurePolicy<TResult> with compile-time configuration for name, capacity, saturation mode, and wait timeout.

[GenerateBackpressurePolicy(
    typeof(CheckoutAdmission),
    FactoryMethodName = "CreateGeneratedPolicy",
    PolicyName = "checkout-backpressure",
    Capacity = 8,
    Mode = "Wait",
    WaitTimeoutMilliseconds = 50)]
public static partial class GeneratedCheckoutBackpressurePolicy;

Diagnostics:

• PKBP001: the host type must be partial.
• PKBP002: capacity and wait timeout must be valid.
• PKBP003: the factory method name must be a valid identifier.
• PKBP004: mode must be one of Reject, Wait, DropNewest, DropOldest, Shed, or Observe.