Style Guide

Style Guide for Rust in Polkadot

• Indent using tabs
• Never have spaces before a non-whitespace character starts
• Follow-on lines are only ever a single indent from the original line
• where is indented, and its items are indented one further
• Long arg lists or function calls are indented similarly to code blocks
• Always end last item of a multi-line comma-delimited set with , when legal:

struct Point<T> {
	x: T,
	y: T,
}

Single line comma-delimited items do not have a trailing ,:

enum Meal { Breakfast, Lunch, Dinner };

• Avoid trailing ;s where undeeded (e.g. if condition { return 1 } rather than if condition { return 1; }.
• match arms may be