diff options
Diffstat (limited to 'compiler/rustc_driver/src/args.rs')
| -rw-r--r-- | compiler/rustc_driver/src/args.rs | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/rustc_driver/src/args.rs b/compiler/rustc_driver/src/args.rs index 5686819c61b..4f2febf04b1 100644 --- a/compiler/rustc_driver/src/args.rs +++ b/compiler/rustc_driver/src/args.rs @@ -4,8 +4,7 @@ use std::fs; use std::io; pub fn arg_expand(arg: String) -> Result<Vec<String>, Error> { - if arg.starts_with('@') { - let path = &arg[1..]; + if let Some(path) = arg.strip_prefix('@') { let file = match fs::read_to_string(path) { Ok(file) => file, Err(ref err) if err.kind() == io::ErrorKind::InvalidData => { |