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annotate tools/linedebug.lua @ 12763:d26eefe98d09

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util.dbuffer: Add efficient shortcuts for discard() in certain cases If the buffer is already empty, nothing to do. If we're throwing away the whole buffer, we can just empty it and avoid read_chunk() (which in turn may collapse()). These shortcuts are much more efficient.
author Matthew Wild <mwild1@gmail.com>
date Tue, 11 Oct 2022 11:37:55 +0100
parents 5850d24a4ad3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
11193
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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1 local data = {}
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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2 local getinfo = debug.getinfo;
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
parents:
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3 local function linehook(ev, li)
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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4 local S = getinfo(2, "S");
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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5 if S and S.source and S.source:match"^@" then
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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6 local file = S.source:sub(2);
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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7 local lines = data[file];
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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8 if not lines then
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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9 lines = {};
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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10 data[file] = lines;
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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11 for line in io.lines(file) do
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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12 lines[#lines+1] = line;
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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13 end
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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14 end
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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15 io.stderr:write(ev, " ", file, " ", li, " ", lines[li], "\n");
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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16 end
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
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17 end
5850d24a4ad3 tools/linedebug: Print each line of source executed
Kim Alvefur <zash@zash.se>
parents:
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18 debug.sethook(linehook, "l");