Dan Zheng 0585eb0e90 [AutoDiff upstream] Add @derivative(of:) attribute. (#28321) ...

The `@derivative(of:)` attribute registers a function as a derivative of another
function. This patch adds the `@derivative(of:)` attribute definition, syntax,
parsing, and printing.

Resolves TF-826.

Todos:
- Type-checking (TF-829).
- Serialization (TF-837).

2019-12-10 09:29:43 -08:00

7.5 KiB

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