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Also prevent overflow in debug builds #51324

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Merged
merged 1 commit into from
Jun 5, 2018
Merged

Also prevent overflow in debug builds #51324

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2 changes: 1 addition & 1 deletion src/librustc_errors/emitter.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1287,7 +1287,7 @@ impl EmitterWriter {
});

// length of the code to be substituted
let snippet_len = (span_end_pos - span_start_pos) as isize;
let snippet_len = span_end_pos as isize - span_start_pos as isize;
// For multiple substitutions, use the position *after* the previous
// substitutions have happened.
offset += full_sub_len - snippet_len;
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