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| author | Ariel Davis <ariel.z.davis@icloud.com> | 2023-05-06 15:05:03 -0700 |
|---|---|---|
| committer | Ariel Davis <ariel.z.davis@icloud.com> | 2023-05-06 15:05:03 -0700 |
| commit | 1bc6bca478872347faa32371663b3aff7b00624f (patch) | |
| tree | b881dad95f2d30c43acd280ea3afa4bd6e85bdb4 | |
| parent | 343976fe56d65aae4d4c6c4ac9d0ceb25b07c036 (diff) | |
| download | rust-1bc6bca478872347faa32371663b3aff7b00624f.tar.gz rust-1bc6bca478872347faa32371663b3aff7b00624f.zip | |
Use checked
| -rw-r--r-- | lib/line-index/src/lib.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/line-index/src/lib.rs b/lib/line-index/src/lib.rs index 6318cbde50b..622738ce8fb 100644 --- a/lib/line-index/src/lib.rs +++ b/lib/line-index/src/lib.rs @@ -184,7 +184,7 @@ impl LineIndex { if let Some(wide_chars) = self.line_wide_chars.get(&line_col.line) { for c in wide_chars.iter() { if u32::from(c.end) <= line_col.col { - col -= u32::from(c.len()) - c.wide_len(enc); + col = col.checked_sub(u32::from(c.len()) - c.wide_len(enc))?; } else { // From here on, all utf16 characters come *after* the character we are mapping, // so we don't need to take them into account @@ -201,7 +201,7 @@ impl LineIndex { if let Some(wide_chars) = self.line_wide_chars.get(&line_col.line) { for c in wide_chars.iter() { if col > u32::from(c.start) { - col += u32::from(c.len()) - c.wide_len(enc) as u32; + col = col.checked_add(u32::from(c.len()) - c.wide_len(enc))?; } else { // From here on, all utf16 characters come *after* the character we are mapping, // so we don't need to take them into account |