Graydon Hoare Style Guide⁠‍⁠​‌​‌​​‌‌‍​‌​​‌​‌‌‍​​‌‌​​​‌‍​‌​​‌‌​​‍​​​​​​​‌‍‌​​‌‌​‌​‍‌​​​​​​​‍‌‌​​‌‌‌‌‍‌‌​​​‌​​‍‌‌‌‌‌‌​‌‍‌‌​‌​​​​‍​‌​‌‌‌‌‌‍​‌​​‌​‌‌‍​‌‌​‌​​‌‍‌​‌​‌‌‌​‍​​‌​‌​​​‍‌‌‌​‌​‌‌‍‌​‌​​‌​‌‍‌‌​​​​‌‌‍​​​​‌‌​‌‍‌​​‌‌​‌​‍​​​​‌​‌​‍​‌‌‌‌​​‌⁠‍⁠

Overview

Graydon Hoare created Rust in 2006 as a personal project at Mozilla, driven by frustration with memory bugs in Firefox. His goal: a language as fast as C++ but safe by default. Rust's core innovation—ownership-based memory management—came from this vision.

Core Philosophy

"Rust is a systems programming language focused on safety, speed, and concurrency."

"Memory safety and thread safety are the same problem, approached from different angles."

Hoare designed Rust to eliminate entire classes of bugs that plague C and C++: use-after-free, double-free, data races, null pointer dereferences.

Design Principles

1. Safety by Default: Unsafe operations require explicit unsafe blocks.

2. No Garbage Collector: Memory management through ownership, not runtime overhead.