Ben Chuanlong Du's Blog

It is never too late to learn.

Tips on Rust Clippy

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

unused_variables unused_imports dead_code

General Tips

  1. Clippy does not support filtering by specific lint directly. However, it can be achieved via the old rustc flags hack. For example, you can use the …

Cell and RefCell in Rust

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

https://doc.rust-lang.org/std/cell/

https://doc.rust-lang.org/std/cell/struct.RefCell.html

Rust Cell and RefCell

Rc + RefCell is another alternative to circumvent Rust's borrow checker at compile …

Tips on ZetaSQL

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

ZetaSQL is a customized SQL dialect, along with parser and analyzer, that Google uses for products like BigQuery and Spanner.

unnest

cross join if an implicit join is used. Notice that …

Const Generic in Rust

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. Starting from Rust 1.51, constant generics is supported for integral types.

  2. The crate static_assertions can be used to assert that a const generic parameter satisfy certain conditions at compile time …