Temporarily take ownership of a value at a mutable location, and replace it with a new value based on the old one.

Enhance Rust errors with file and line details using the `#[wherr]` macro for clearer debugging.

Macro for sealing traits and structures

Provides many useful tools related to tuples

A Rust crate that defines the ToBoundedStatic and IntoBoundedStatic traits

A macro to clone variables into the current scope shadowing old ones.

Rust crate that provides the Partial trait, and an optional macro to mirror a struct, wrapping each field in an Option.

OptionCell: OnceCell but derivable from Option

The easiest and most intuitive error handling solution.

The enum Among with variants Left, Middle and Right is a general purpose sum type with three cases.

Different reference kinds in Rust

A collection of helper attribute macros for trait patterns

Inspect and mutate values without leaving the method chain

Extensible pattern matching in Rust

asynchronous and synchronous interfaces and persistence implementations for your OOD architecture

encapsulate the act of deriving a struct from a reference

Get your own Any with support for casting to trait objects.

Create a multiline string literal

Convert Option to Result

This is a simple application for training patterns. The app cans calculate sum for product, warehouse, shop with Composite pattern. Also, you can create your providers. For them, you can create responsible people who will say you very useful information. It was created using a pattern Fabric. Write your results with "writer" who was created usin…