# Pony Patterns

> A cookbook of patterns for writing idiomatic Pony code.

## Asynchronous Patterns

- [Overview](https://patterns.ponylang.io/async/index.md)
- [Accessing an Actor with Arbitrary Transactions](https://patterns.ponylang.io/async/access.md)
- [Interrogating Actors with Promises](https://patterns.ponylang.io/async/actorpromise.md)
- [Batch and Yield](https://patterns.ponylang.io/async/batch-and-yield.md)
- [Supervisor and Worker](https://patterns.ponylang.io/async/supervisor-worker.md)
- [Waiting](https://patterns.ponylang.io/async/waiting.md)

## Behavioral Patterns

- [Overview](https://patterns.ponylang.io/behavioral/index.md)
- [State Machine](https://patterns.ponylang.io/behavioral/state-machine.md)

## Code Sharing Patterns

- [Overview](https://patterns.ponylang.io/code-sharing/index.md)
- [Embed and Delegate](https://patterns.ponylang.io/code-sharing/embed-and-delegate.md)
- [Global Function](https://patterns.ponylang.io/code-sharing/global-function.md)
- [Inheritance](https://patterns.ponylang.io/code-sharing/inheritance.md)
- [Mixin](https://patterns.ponylang.io/code-sharing/mixin.md)
- [Notifier](https://patterns.ponylang.io/code-sharing/notifier.md)
- [Object Algebra](https://patterns.ponylang.io/code-sharing/object-algebra.md)
- [Parser Combinators](https://patterns.ponylang.io/code-sharing/parser-combinators.md)

## Creation Patterns

- [Overview](https://patterns.ponylang.io/creation/index.md)
- [FFI Global Initializer](https://patterns.ponylang.io/creation/ffi-global-initializer.md)
- [Recover for Isolated Return](https://patterns.ponylang.io/creation/recover-iso.md)
- [Static Constructor](https://patterns.ponylang.io/creation/static-constructor.md)
- [Supply Chain](https://patterns.ponylang.io/creation/supply-chain.md)
- [Typed Step Builder](https://patterns.ponylang.io/creation/typed-step-builder.md)

## Data Sharing Patterns

- [Overview](https://patterns.ponylang.io/data-sharing/index.md)
- [Copying](https://patterns.ponylang.io/data-sharing/copying.md)
- [Isolated Field](https://patterns.ponylang.io/data-sharing/isolated-field.md)
- [Mutable and Sendable](https://patterns.ponylang.io/data-sharing/mutable-and-sendable.md)
- [Persistent Data Structures](https://patterns.ponylang.io/data-sharing/persistent-data-structures.md)

## Domain Modeling Patterns

- [Overview](https://patterns.ponylang.io/domain-modeling/index.md)
- [Constrained Types](https://patterns.ponylang.io/domain-modeling/constrained-types.md)
- [Value Classes](https://patterns.ponylang.io/domain-modeling/value-classes.md)

## Error Handling Patterns

- [Overview](https://patterns.ponylang.io/error-handling/index.md)
- [Error as Union Type](https://patterns.ponylang.io/error-handling/error-as-union-type.md)

## Object Capabilities Patterns

- [Overview](https://patterns.ponylang.io/object-capabilities/index.md)
- [Authority Hierarchy](https://patterns.ponylang.io/object-capabilities/authority-hierarchy.md)
- [Single Use Object Capabilities](https://patterns.ponylang.io/object-capabilities/single-use.md)

## Performance Patterns

- [Overview](https://patterns.ponylang.io/performance/index.md)
- [Avoid Boxing with Parameterization](https://patterns.ponylang.io/performance/avoid-boxing.md)
- [Boolean Short-Circuit](https://patterns.ponylang.io/performance/boolean-short-circuit.md)
- [Limiting String Allocations](https://patterns.ponylang.io/performance/limiting-string-allocations.md)
- [Preallocate Arrays](https://patterns.ponylang.io/performance/preallocate-arrays.md)

## Resource Management Patterns

- [Overview](https://patterns.ponylang.io/resource-management/index.md)
- [Disposable Actor](https://patterns.ponylang.io/resource-management/disposable-actor.md)
- [FFI Resource Lifecycle](https://patterns.ponylang.io/resource-management/ffi-resource-lifecycle.md)

## Streaming Patterns

- [Overview](https://patterns.ponylang.io/streaming/index.md)
- [Peek Before Consume](https://patterns.ponylang.io/streaming/peek-before-consume.md)

## Testing Patterns

- [Overview](https://patterns.ponylang.io/testing/index.md)
- [Testing Notifier Interactions](https://patterns.ponylang.io/testing/notifier-interactions.md)
- [Testing Output Only Actors](https://patterns.ponylang.io/testing/output-only-actors.md)