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Fix edge case where lineno <= context_lines

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This commit is contained in:
Sijawusz Pur Rahnama 2021-01-10 14:29:29 +01:00
parent 63ca71ba56
commit 1ff793f00b
1 changed files with 5 additions and 2 deletions
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src/backtracer/backtrace/frame.cr
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@ -123,8 +123,11 @@ module Backtracer
lineidx = lineno - 1 lineidx = lineno - 1
if context_line = lines[lineidx]? if context_line = lines[lineidx]?
pre_context = lines[Math.max(0, lineidx - context_lines), context_lines] pre_context_lines =
post_context = lines[Math.min(lines.size, lineidx + 1), context_lines] (lineno <= context_lines) ? lineidx : context_lines
pre_context = lines[(lineidx - context_lines).clamp(0..), pre_context_lines]
post_context = lines[(lineidx + 1).clamp(..lines.size), context_lines]
@context_cache[context_lines] = @context_cache[context_lines] =
Context.new( Context.new(