The readonly package provides a simple and efficient way to handle immutable and final values in Go. It offers two main types: ReadOnly and Final, each designed to manage values that are either immutable or assigned once.

To use the readonly package in your Go project, simply import it as follows:

import "github.com/STRockefeller/readonly"

The ReadOnly struct is used to create immutable values. Once a value is set, it cannot be changed.

value := readonly.NewReadOnly(42)

v := value.Get()

The Final struct allows for creating a value that can be set only once. It's an alternative to ReadOnly for scenarios where the value might not be known at the time of instantiation.

var finalValue readonly.Final[int]

To set the value for the first time:

finalValue.Set(42)

To safely access the value:

v := finalValue.Get()

• Immutable value handling with ReadOnly.
• Single-assignment value handling with Final.
• Type-safe implementation using Go generics.

MIT License