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.NETStandard2.0

Metalama. A tool for aspect-oriented programming (AOP) using templates written in pure C#.

Published
Oct 31, 2024
1y ago
Total Downloads
1.5M
1,543,694

Known Vulnerabilities (1)

Install

dotnet add package Metalama.Framework --version 2025.0.4-preview
ProductVersions
.NET Standard
netstandard2.0

README

Metalama Logo

Metalama is a Roslyn-based framework for on-the-fly code generation and validation in C#.

Using Metalama, you can:

  • Reduce boilerplate by generating it dynamically during compilation. Your source code remains crystal-clear.
  • Verify code in real time against architecture, patterns, and conventions. No need to wait for code reviews.
  • Provide coding assistance to your team with customized feedback and suggestions.
  • Do it by your rules. Automate your own implementation patterns and architecture guidelines.

For more information, see the Metalama website or Metalama documentation.

About this package

The Metalama.Framework package is the principal package of Metalama. Reference this package if you want to use Metalama in your code.

Referencing this package replaces the compiler with Metalama.Compiler, a shallow fork of Roslyn that adds an extension point to allow us to transform the syntax trees. If you need to reference Metalama without replacing the compiler, use the Metalama.Framework.Redist package.

Quick Links

Related packages

Package Name Description
Metalama.Compiler Metalama Compiler package. Referencing this package directly is not recommended. A fork of Roslyn.
Metalama.Compiler.Sdk Defines APIs for writing source transformers for Metalama.Compiler.
Metalama.Extensions.Architecture Verifies code against architecture rules in Metalama.
Metalama.Extensions.DependencyInjection Allows aspects to consume dependencies from an arbitrary dependency injection framework.
Metalama.Extensions.DependencyInjection.ServiceLocator Locates and pulls dependencies from a global service provider.
Metalama.Extensions.Metrics Exposes code metrics to the code model in Metalama.
Metalama.Extensions.Multicast Emulates PostSharp multicasting within Metalama.
Metalama.Framework The principal package.
Metalama.Framework.Introspection Provides introspection of Metalama aspect classes, instances, and diagnostics.
Metalama.Framework.Redist Redistributable components for Metalama.Framework. Should be installed as a dependency.
Metalama.Framework.RunTime Run-time components for Metalama.Framework. Usually installed as a dependency.
Metalama.Framework.Sdk A tool for custom source code modifying extensions using the Roslyn API.
Metalama.Framework.Workspaces Allows loading solutions and projects, executing Metalama, and introspection of compilation results.
Metalama.Migration Annotated PostSharp API documenting its Metalama equivalent.
Metalama.Patterns.Caching A caching front-end that can be plugged into different backends and helps with building the cache key, coping with special return types, and invalidating the cache.
Metalama.Patterns.Caching.Aspects A set of aspects that simplify the caching: [Cache] to cache a method result as a function of its parameters, [InvalidateCache] to invalidate the cache, or [CacheKey] to mark a cache key.
Metalama.Patterns.Caching.Backend Backend components for Metalama.Patterns.Caching.
Metalama.Patterns.Caching.Backends.Azure Synchronizes the invalidation of distributed Metalama.Patterns.Caching caches over Azure Service Bus.
Metalama.Patterns.Caching.Backends.Redis Redis back-end for Metalama.Patterns.Caching. Implements both caching and cache invalidation over Redis Pub/Sub.
Metalama.Patterns.Contracts Contract-Based Programming (or Design-by-Contract) with custom attributes such as [NotNull] or [Url] thanks to Metalama: pre-conditions, post-conditions and invariants.
Metalama.Patterns.Immutability Represents the concept of Immutable Type so that it can be used by other packages like Metalama.Patterns.Observability.
Metalama.Patterns.Memoization Simple and high-performance caching of properties or parameterless methods with a single [Memo] custom attribute thanks to Metalama.
Metalama.Patterns.Observability Implements the Observable pattern and the INotifyPropertyChanged interface with a single [Observable] attribute thanks to Metalama. Supports both automatic and explicit properties and child objects.
Metalama.Patterns.Xaml Provides custom observability features for XAML applications.
Metalama.Testing.AspectTesting Test framework for Metalama aspects and fabrics.
Metalama.Testing.UnitTesting A package for unit testing compile-time code.
Metalama.Tool Command line tool for registering a license key or accessing configuration settings.
Metalama.Community.AutoCancellationToken A Metalama weaver that automatically adds CancellationToken to your method definitions and your method calls.
Metalama.Community.Costura A Metalama weaver that embeds dependent assemblies as managed resources. A fork of Costura.Fody.
Metalama.Community.Costura.Redist Redistributable components for package Metalama.Community.Costura. Should only be installed as a dependency.
Metalama.Community.Virtuosity A Metalama weaver that makes all methods in a type virtual.

Change log

We maintain a detailed change log on GitHub.

Feedback and support

If you have any feedback regarding Metalama, please open an issue, start a discussion on GitHub, or contact us directly at [email protected].

You can also join our Slack community and ask your technical questions in real time.

Slack

Changes from Previous Version

No structural changes between v2025.0.3-preview and v2025.0.4-preview.

Adoption Assessment

A verified publisher signal is available. Assess fit from the package's supported frameworks, license and dependency graph rather than popularity alone.

This version is marked prerelease. Validate its API and upgrade path before production use.Published vulnerability advisories exist for this version. Read the advisory and choose a remediated version before release.No SPDX license expression is published. Review the license text and your organisation's policy before redistribution.Compatibility metadata lists 1 target framework; confirm the exact target used by your application.

Related Guides & Workflows

Learn how to evaluate, integrate, or audit this package in your .NET project.