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Metalama.Extensions.Validation 2026.1.18

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About

The Metalama.Extensions.Validation package extends Metalama.Framework with APIs that allow to validate code. Its most important and unique feature is the ability to validate code references (i.e. usages or dependencies).

This package provides a base API from which concrete validation rules can be built.

Features

• Validate code references (i.e. code usages or dependencies).
• Validate declarations before or after aspects have been applied.
• Warnings appear as familiar C# warnings.
• Immediate feedback as you type in the IDE.
• Warnings can be suppressed using the standard mechanisms such as #pragma warning disable.
• Extensible through Metalama.Framework or Roslyn.

License

This package is a commercial extension of the open-source Metalama.Framework and requires a Metalama Professional license.

Principal Types

• ValidationQueryExtensions provides the Validate extension method to the IQuery interface exposed by aspects and fabrics. This methods allows to validate a declaration, possibly before or after it has been modified by aspects.

• ReferenceValidationQueryExtensions provides the ValidateInboundReference methods to the IQuery interface exposed by aspects and fabrics. It allows to validate code that references the target declaration.

Documentation

• API Documentation: Metalama.Extensions.Validation

• Conceptual Documentation: Validating code from an aspect

Related Packages

• Metalama.Extensions.Architecture implements concrete rules based on Metalama.Extensions.Validation.