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fix(query.lua): check empty table for lines

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The range of node may make `nvim_buf_get_lines` return an empty table.
This commit is contained in:
kevinhwang91 2022-02-11 14:42:23 +08:00
parent 851252f79d
commit afcf64479c
1 changed files with 7 additions and 5 deletions
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12
runtime/lua/vim/treesitter/query.lua
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@ -199,11 +199,13 @@ function M.get_node_text(node, source)
lines = a.nvim_buf_get_lines(source, start_row, end_row + 1, true)
end
if #lines == 1 then
lines[1] = string.sub(lines[1], start_col+1, end_col)
else
lines[1] = string.sub(lines[1], start_col+1)
lines[#lines] = string.sub(lines[#lines], 1, end_col)
if #lines > 0 then
if #lines == 1 then
lines[1] = string.sub(lines[1], start_col+1, end_col)
else
lines[1] = string.sub(lines[1], start_col+1)
lines[#lines] = string.sub(lines[#lines], 1, end_col)
end
end
return table.concat(lines, "\n")