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Diffstat (limited to '')
| -rw-r--r-- | src/tools/clippy/clippy_utils/src/numeric_literal.rs | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/tools/clippy/clippy_utils/src/numeric_literal.rs b/src/tools/clippy/clippy_utils/src/numeric_literal.rs index 3fb5415ce..80098d976 100644 --- a/src/tools/clippy/clippy_utils/src/numeric_literal.rs +++ b/src/tools/clippy/clippy_utils/src/numeric_literal.rs @@ -223,10 +223,12 @@ impl<'a> NumericLiteral<'a> { fn split_suffix<'a>(src: &'a str, lit_kind: &LitKind) -> (&'a str, Option<&'a str>) { debug_assert!(lit_kind.is_numeric()); - lit_suffix_length(lit_kind).map_or((src, None), |suffix_length| { - let (unsuffixed, suffix) = src.split_at(src.len() - suffix_length); - (unsuffixed, Some(suffix)) - }) + lit_suffix_length(lit_kind) + .and_then(|suffix_length| src.len().checked_sub(suffix_length)) + .map_or((src, None), |split_pos| { + let (unsuffixed, suffix) = src.split_at(split_pos); + (unsuffixed, Some(suffix)) + }) } fn lit_suffix_length(lit_kind: &LitKind) -> Option<usize> { |