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As of Eiffel for ASP.NET 5.6 and EiffelStudio 5.7; Eiffel for .NET introduces the notion of Eiffel-Compliance. .NET specifies a number of language interoperability rules in a Common Language Specification-Compliance specification. Eiffel for .NET supports all CLS-Compliant type and features in .NET but now additionally supports a number of non-CLS-compliant types and features. This is the purpose of the Eiffel-Compliant notion.
The information contained within this page does not go into any depth on the Common Language Specification (CLS) or CLS-Compliance. For this information please see Microsoft's on-line documentation What is the Common Language Specification?
The CLS states a number of rules .NET tools have to abide by to be CLS-compliant. These rules relate to both a .NET producer, generally a compiler generating .NET code, and a consumer, which is generally a compiler that consumes .NET assemblies for reuse. Eiffel-Compliance relates only to consumption of .NET assemblies.
What is Eiffel-Compliant?
As already stated, anything CLS-compliant is Eiffel-compliant. Eiffel-Compliancy merely allows for exceptions so that non-CLS-compliant assemblies, types and members can be used in Eiffel for .NET.
The following list outlines the supported non-CLS-compliant types:
- All unsigned numerical basic types such as
System.UInt32as System.UInt64, represented by NATURAL_xx.
- Native pointers (
System.IntPtr), represented by POINTER
Typically assemblies, types or members are marked with the
- Parent <Eiffel for .NET>