To be fair, Go almost go the "?" operator like Rust. The proposal was well received. It wasn't the lack of "Result" that held it back, it was that nobody could figure out how to deal with the handling problem. It's not entirely clear what the Rust-equivalent is for all the other moving pieces associated with "?" (e.g. its defined traits). The latest "?" proposal forces a handling body on each use to address that issue. But at that point all you've done is added another way to write "if". Is that a win?
To be fair, Go almost go the "?" operator like Rust. The proposal was well received. It wasn't the lack of "Result" that held it back, it was that nobody could figure out how to deal with the handling problem. It's not entirely clear what the Rust-equivalent is for all the other moving pieces associated with "?" (e.g. its defined traits). The latest "?" proposal forces a handling body on each use to address that issue. But at that point all you've done is added another way to write "if". Is that a win?