AutoDiffFunctionAttribute Class

public sealed class AutoDiffFunctionAttribute : Attribute

Public NotInheritable Class AutoDiffFunctionAttribute
	Inherits Attribute

public ref class AutoDiffFunctionAttribute sealed : public Attribute

[<SealedAttribute>]
type AutoDiffFunctionAttribute = 
    class
        inherit Attribute
    end

Inheritance

Object  →  Attribute  →  AutoDiffFunctionAttribute

Compiler-owned identifiers are available in AutoDiffFunctions. Libraries may define their own identifiers using a unique namespace-like prefix.

This declaration supplies function identity. AutoDiffAttribute requests derivative generation, and DerivativeAttribute declares derivative semantics. Semantic identity does not itself assert purity, absence of memory effects, or non-throwing behavior.

The source generator discovers implementations in the current compilation and referenced portable AutoDiff packages before derivative planning. Eligible nested derivative rules can then be shared across implementations with the same identifier by generalizing their numerical element type. Ordinary source calls retain their exact CLR identity.

All implementations must have the same semantic arity, including the receiver for instance methods. Calls to annotated implementations inside nested derivative bodies use semantic identity; contextual instantiation selects the unique implementation with the exact concrete argument and result types. Missing or ambiguous matches, and selections inaccessible from the generated host, are errors. Referenced derivative bodies are loaded only when selected.

Reference