Format for Statements

let Statements

There should be spaces after the : and on both sides of the = (if they are present). No space before the semi-colon.

// A comment.
let pattern: Type = expr;

let pattern;
let pattern: Type;
let pattern = expr;

Macros in Statement Position

• A macro use in statement position should use parentheses or square brackets as delimiters and should be terminated with a semi-colon.
• There should be no spaces between the name, !, the delimiters, the delimiters, or the ;.

// A comment.
a_macro!(...);

Expressions in Statement Position

• There should be no space between the expression and the semi-colon.

<expr>;

• All expressions in statement position should be terminated with a semi-colon, unless they end with a block or are used as the value for a block.

{
    an_expression();
    expr_as_value()
}