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fix(column): ignore empty signcols range (#28177)
Problem: Invalid assert for empty signcols range. The empty range should already be removed from "b_signcols" at this point. The "clear" == kTrue call before the splice that made the range empty will have removed it, and the "clear" == kNone call after the splice already ignores the empty range. Solution: Return early when "row2" < "row1".
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@ -792,12 +792,11 @@ static const uint32_t signtext_filter[4] = {[kMTMetaSignText] = kMTFilterSelect
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/// @param clear kFalse, kTrue or kNone for an, added/deleted, cleared, or initialized range.
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void buf_signcols_count_range(buf_T *buf, int row1, int row2, int add, TriState clear)
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{
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if (!buf->b_signcols.autom || !buf_meta_total(buf, kMTMetaSignText)) {
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if (!buf->b_signcols.autom || row2 < row1 || !buf_meta_total(buf, kMTMetaSignText)) {
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return;
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}
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// Allocate an array of integers holding the number of signs in the range.
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assert(row2 >= row1);
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int *count = xcalloc(sizeof(int), (size_t)(row2 + 1 - row1));
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MarkTreeIter itr[1];
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MTPair pair = { 0 };
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