A macro transformation hack based on AST translation.

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Quiet
Tech stack
rust
Domain
devtools

Research direction

Start by reading the linked lang-c hack_bindgen.rs implementation and the hc32_driver_sys usage example, then compare their recursive AST transformation with bindgen's current macro translation. The issue does not name bindgen files or tests and defines no acceptance criteria, so the intended scope and validation for a complete change would need to be established first.

Written by the indexing model from the issue text.

Description

The current macro translation solution has many defects, such as being unable to translate a simple integer type conversion. Therefore, I implemented a macro translation solution based on lang-c using recursive transformation. A simple hack implementation is here (non-invasive to bindgen, because modifying the bindgen library seems like a big project):

https://github.com/823984418/lang-c/blob/hack-for-bindgen/src/hack_bindgen.rs

This is an example of my use of it:
https://github.com/823984418/hc32_driver_sys

I think this is a great idea, so I’m sharing it here. The implementation is still rough, but it simply expresses what I want to achieve.

Dominant language
Rust
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Forks
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Avg merge
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Merged PRs (30d)
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Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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