idea: consult git diff for better diagnostics / syntax errors #48911
Description
Just an idea:
Let's say our code looks like this:
fn main() { { { { println!("Hello, world!"); } } }The error message is not very helpful here, pointing to lines 1 and 8:
error: this file contains an un-closed delimiter --> src/main.rs:8:3 | 8 | } | ^ | help: did you mean to close this delimiter? --> src/main.rs:1:11 | 1 | fn main() { | ^ However, since cargo inits new repos as git repo, maybe we can utilize the repo diff and see which brace was added the last:
fn main() { { { - println!("Hello, world!"); + { + println!("Hello, world!"); } } }and give a better diagnostic:
error: this file contains an un-closed delimiter --> src/main.rs:8:3 | 8 | } | ^ | help: did you mean to close this delimiter? --> src/main.rs:4:12 | 4 | { | ^ ```