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Yhn LifeTravel first seen 1 d ago, last 4 min ago, peak #1

Rust's derive macro often implies inline code expansion

Original: Rust's derive often implies inline

A write-up explains that Rust's #[derive] attribute frequently leads the compiler to inline the generated trait implementations, since derived code is generated in the same crate and can be aggressively optimised. The note highlights a compiler behaviour that many developers do not realise: what looks like a simple macro expansion can carry performance and binary-size implications for compiled programs.

Why now: Rust developers are discussing a subtle compiler detail that affects codegen and performance expectations

Rustderive macroRust compiler

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