diff options
Diffstat (limited to 'compiler/rustc_session/src/options.rs')
| -rw-r--r-- | compiler/rustc_session/src/options.rs | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 66c709b4080..74578f2dc17 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -179,9 +179,10 @@ macro_rules! options { { let mut op = $defaultfn(); for option in matches.opt_strs($prefix) { - let mut iter = option.splitn(2, '='); - let key = iter.next().unwrap(); - let value = iter.next(); + let (key, value) = match option.split_once('=') { + None => (option, None), + Some((k, v)) => (k.to_string(), Some(v)), + }; let option_to_lookup = key.replace("-", "_"); let mut found = false; for &(candidate, setter, type_desc, _) in $stat { @@ -945,8 +946,7 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options, "instrument the generated code to support LLVM source-based code coverage \ reports (note, the compiler build config must include `profiler = true`, \ and is mutually exclusive with `-C profile-generate`/`-C profile-use`); \ - implies `-C link-dead-code` (unless targeting MSVC, or explicitly disabled) \ - and `-Z symbol-mangling-version=v0`; disables/overrides some Rust \ + implies `-Z symbol-mangling-version=v0`; disables/overrides some Rust \ optimizations (default: no)"), instrument_mcount: bool = (false, parse_bool, [TRACKED], "insert function instrument code for mcount-based tracing (default: no)"), |