nandi/rustnim · 017-enum-simple.rs

⑂ 7db79919131ab55e23a1730bf78c360e05d9977e

017-enum-simple.rs · 21 lines · 534 BRust    Blame HistoryRaw
Add enums, Option/Result, `?`, and the machinery base16ct needs around them  nandithebull 1// A C-like enum is a plain Nim enum: it compares and `case`-checks like Rust's.
2#[derive(Clone, Copy, PartialEq, Eq, Debug)]
3enum Error {
4    InvalidEncoding,
5    InvalidLength,
8fn describe(e: Error) -> i32 {
9    match e {
10        Error::InvalidEncoding => 1,
11        Error::InvalidLength => 2,
15fn main() {
16    let a = Error::InvalidEncoding;
17    let b = Error::InvalidLength;
18    println!("{} {}", describe(a), describe(b));
19    println!("{:?} {:?}", a, b);
20    println!("{} {}", a == b, a == Error::InvalidEncoding);

Add enums, Option/Result, `?`, and the machinery base16ct needs around them b0ccd80 nandithebull 19h ago	1	// A C-like enum is a plain Nim enum: it compares and `case`-checks like Rust's.
	2	#[derive(Clone, Copy, PartialEq, Eq, Debug)]
	3	enum Error {
	4	InvalidEncoding,
	5	InvalidLength,
	6	}
	7
	8	fn describe(e: Error) -> i32 {
	9	match e {
	10	Error::InvalidEncoding => 1,
	11	Error::InvalidLength => 2,
	12	}
	13	}
	14
	15	fn main() {
	16	let a = Error::InvalidEncoding;
	17	let b = Error::InvalidLength;
	18	println!("{} {}", describe(a), describe(b));
	19	println!("{:?} {:?}", a, b);
	20	println!("{} {}", a == b, a == Error::InvalidEncoding);
	21	}