The SyntaxContext implementation exhibits unconventional logic

[bvanjoi]

While investigating the design and purpose of SyntaxContext, I discovered this code was adapted from macro expansion logic in rustc. However, this design presents clear issues:

​Fundamental Mismatch: JavaScript lacks macro capabilities, making this direct porting of Rust's logic unnecessarily confusing.

​Current Problems:

• The actual functionality of SyntaxContext remains unclear
• Its operational mechanism is difficult to comprehend
• The Rust-inspired design doesn't align with JavaScript semantics

​Proposed Solutions:

• ​Documentation Improvement: Add comprehensive documentation explaining SyntaxContext's purpose and clarify its role in the JavaScript context specifically.
• ​Architectural Refactor: Redesign the logic using JavaScript-idiomatic patterns.

[kdy1]

Did you read https://swc.rs/docs/contributing/es-commons/variable-management ?

[kdy1]

Btw, I think we should migrate to node id anyway