Keywords

The current lexer recognizes these keyword tokens:

Category	Keywords
Declarations	fn, struct, enum, interface, error, type, test
Modules and linkage	import, from, export, extern, foreign
Bindings	let, const, distinct
Control flow	if, else, for, in, while, loop, match, select, case, return, break, continue, defer
Error flow	try, throw, catch, throws, assert
Async	async, await
Low-level	asm, as, unsafe, with, intrinsic
Reserved or lexer-known	union

import std.os;

fn main() {
    let value = 42;
    if value > 0 {
        _ = os.write("{value}\n");
    }
}

Not every lexer-known keyword has a finalized public syntax page yet.