Twitter thread with trivia about Rust types

• rust

  2,686 93,266 10.0 Rust

  Empowering everyone to build reliable and efficient software.

  

Did you know that actual deallocation logic for Arc is implemented in Weak, and is invoked by considering all copies of a particular Arc to collectively hold a single Weak between them? https://github.com/rust-lang/rust/blob/7e9b92cb43a489b34e2bcb8d21f36198e02eedbc/library/alloc/src/sync.rs#L1108-L1109

• ghost

  1 139 6.8 Rust

  Define your own PhantomData (by dtolnay)

Did you know that it's actually kind of tricky to define PhantomData yourself: https://github.com/dtolnay/ghost

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• unsafe-code-guidelines

  74 641 6.9

  Forum for discussion about what unsafe code can and can't do

  

Did you know that, at least for the time being, *const T and *mut T are more or less equivalent? https://github.com/rust-lang/unsafe-code-guidelines/issues/257

• rfcs

  3 3 8.7 Markdown

  RFCs for changes to Rust (by RalfJung)

Definitely cheating :p But did you know that originally the intention was to have &const raw variable be just a MIR construct and let &variable as *const _ be automatically changed to &const raw? https://github.com/RalfJung/rfcs/blob/fd4b4cd769300cfde5d54865d227990b71b762d1/text/0000-raw-reference-operator.md

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