Feature Request: Avoid brackets on if (And similar) statements

[jkugelman]

This has come up before:

Optional curly brackets

Note that Java has required parens, as you just used there, because it has optional braces. Rust makes the opposite choice, and has optional (even discouraged) parens around the condition, but required braces around the block: if doHelloWord { println!("Hello world!"); } Given that everywhere I've worked in C-like languages has ended up having a coding standard requiring braces even through they're optional in the language, I think Rust makes the better trade-off here.

Optional curly brackets

Even if it was possible (and it is not, as others said here), it would open the door to bugs like Apple's goto fail;. I don't want Rust to do the same mistake.

Optional curly brackets

Mandatory curly braces are an intentional design choice. Optional braces don't provide the ability to write cleaner code, quite the opposite. They are a common source of mistakes, like dangling else or bad block nesting. It's part of the features that Graydon Hoare (the original creator of Rust) is very proud that Rust shipped without: https://graydon2.dreamwidth.org/218040.html

Optional curly brackets

As one of the maintainers of the parser and resident invalid code recovery experts, my face contorted while reading this proposal and thinking about the fallout from it. There's nothing stopping us from making the parser recover and provide structured suggestions when code like this is written. There's nothing stopping rust-analyzer from auto-applying the surrounding braces around the code when the confidence is high. But I would put my foot down (not that it could realistically stop any popula…