doc: Any and AnyView

[junrushao]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @junrushao, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the documentation for the Any and AnyView types within the TVM-FFI system. It introduces a dedicated, comprehensive guide that clarifies their fundamental role in enabling seamless cross-language communication, detailing their ownership models, memory representation, and practical usage. The new documentation is integrated into the existing structure, making it easily discoverable for developers working with TVM-FFI.

Highlights

• New Comprehensive Documentation: A new, detailed documentation file (docs/concepts/any.rst) has been added, providing an in-depth explanation of tvm::ffi::Any and tvm::ffi::AnyView. This document covers ownership semantics, memory layout, the stable C ABI, and common usage patterns for these crucial types in cross-language communication.
• Documentation Integration: Existing documentation files (docs/concepts/abi_overview.md and docs/guides/cpp_lang_guide.md) have been updated with 'seealso' references, pointing to the newly added any documentation for more comprehensive details. This improves discoverability and context for users seeking information on Any and AnyView.
• Table of Contents Update: The main documentation index (docs/index.rst) has been modified to include the new concepts/any.rst under the 'Concepts' section, ensuring it is properly listed and accessible within the overall documentation structure.

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[gemini-code-assist]

Code Review

This pull request adds comprehensive documentation for Any and AnyView, which are fundamental concepts in TVM-FFI. The new document docs/concepts/any.rst is very well-written, detailed, and provides clear explanations with excellent examples, tables, and diagrams. It covers ownership, memory layout, and common usage patterns effectively. The changes also include adding links to this new documentation from related pages, which improves discoverability.

I have one minor suggestion to improve the clarity of the type conversion rules. Overall, this is a high-quality contribution that will be very valuable for developers using TVM-FFI.

[junrushao]

/gemini Review

[gemini-code-assist]

Code Review

This pull request adds comprehensive documentation for Any and AnyView, which is a great addition. The new documentation is well-structured and covers the topic in detail. I've found a few minor issues in the code examples and text, such as small grammatical errors, an unused variable, a variable redeclaration, and some inconsistencies in function signatures and struct definitions within the examples. Addressing these will improve the clarity and correctness of the documentation. Overall, this is a valuable contribution.