doc: Function, Exception and Module

[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 introduces extensive new documentation for TVM-FFI's function and module system, providing a detailed guide on how to define, register, and call functions across different languages using a stable C ABI. It also clarifies the role of modules in dynamic loading and namespace isolation. Complementing these documentation efforts, a functional enhancement allows Python callables to be directly wrapped into FFI functions, streamlining integration and aligning with the newly documented workflows.

Highlights

• New Documentation for Functions and Modules: A comprehensive new documentation page, docs/concepts/func_module.rst, has been added. This page details the TVM-FFI function and module system, covering ABI-stable cross-language function calls, global function registration, module usage, and the stable C calling convention.
• Enhanced Python Function Wrapping: The Python tvm_ffi.Function class now supports direct initialization with a Python callable, simplifying the process of wrapping Python functions for use within the TVM-FFI system. This change is reflected in python/tvm_ffi/cython/function.pxi and its type stub.
• Documentation Cross-Referencing: Existing documentation files, including docs/concepts/any.rst and docs/concepts/object_and_class.rst, have been updated to include cross-references to the new function and module documentation, improving navigability and information discovery.

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[gemini-code-assist]

Code Review

This pull request introduces a new documentation page for TVM-FFI functions and modules, which is a great addition for users. It also includes related updates to link to this new page from other documents and adds a constructor to the Python tvm_ffi.Function class to allow wrapping callables directly.

My review focuses on improving the clarity and correctness of the new documentation and the associated code changes. I've pointed out a few inconsistencies in code examples and docstrings that could confuse users. Overall, the changes are valuable and with a few adjustments, the documentation will be even better.

[junrushao]

/gemini review

[gemini-code-assist]

Code Review

This pull request introduces comprehensive documentation for TVM-FFI's Function, Exception, and Module systems by adding a new page, docs/concepts/func_module.rst. The new documentation is well-structured, providing clear explanations and useful code examples. The changes also include updates to other documentation files to integrate this new content. My review identified a couple of minor issues in the code examples within the new documentation, specifically a missing semicolon and some inconsistent indentation, which could be improved for correctness and clarity. Overall, this is a valuable addition to the project's documentation.

[junrushao]

@tqchen I made some updates accordingly. Could you please re-review?