https://sankethbk.github.io/blog/tags/packages/Recent content in Packages on Sanketh's BlogHugo -- 0.160.1en-usSun, 29 Mar 2026 00:00:00 +0000https://sankethbk.github.io/blog/posts/rust/2026-03-29-rust-module-7-crates-packages-modules/Sun, 29 Mar 2026 00:00:00 +0000https://sankethbk.github.io/blog/posts/rust/2026-03-29-rust-module-7-crates-packages-modules/<h1 id="rust-notes--module-7-packages-crates--modules">Rust Notes — Module 7: Packages, Crates &amp; Modules</h1> <hr> <h2 id="1-how-rust-compilation-works">1. How Rust Compilation Works</h2> <p>In C, you hand the compiler a list of files. Each file compiles independently, and a linker stitches the object files together. The problem — the compiler has no idea which files depend on which, so you need a Makefile to track what needs recompiling when something changes.</p> <p>Rust takes a different approach. You hand the compiler <strong>one root file</strong> (<code>main.rs</code> or <code>lib.rs</code>). The compiler follows <code>mod</code> declarations to find every other file that&rsquo;s part of the crate. Because Rust knows the full dependency graph from the start, it handles incremental recompilation internally — no Makefile needed.</p>