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added :time command, please use when writing new functions and you think they are slow

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This commit is contained in:
Martin Stubenschrott
2007-09-18 23:46:05 +00:00
parent 1e15906810
commit f450fa5515
3 changed files with 75 additions and 2 deletions
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71
chrome/content/vimperator/commands.js
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@@ -1298,6 +1298,77 @@ function Commands() //{{{
short_help: "Switch to the first tab"
}
));
addDefaultCommand(new Command(["time"],
function(args, special, count)
{
if (!count || count < 1)
count = 1;
try
{
if (count > 1)
{
var i = count;
var before_time = Date.now();
if (args && args[0] == ":")
while (i--)
vimperator.execute(args);
else
while (i--)
eval(args);
var after_time = Date.now();
if ((after_time - before_time) / count >= 100)
var each = " Each time: <span style=\"color: green\">" +
((after_time - before_time) / 1000.0 / count) +
"</span> sec</br>";
else
var each = " Each time: <span style=\"color: green\">" +
((after_time - before_time) / count) +
"</span> msec</br>";
if (after_time - before_time >= 100)
var total = " Total time: <span style=\"color: red\">" +
((after_time - before_time) / 1000.0) +
"</span> sec</pre>";
else
var total = " Total time: <span style=\"color: red\">" +
(after_time - before_time) + "</span> msec</pre>";
vimperator.echo("<pre><span style=\"color: magenta; font-weight: bold\">Code execution summary</span>:<br/>" +
" Executed: <span style=\"color: green\">" + count + "</span> times<br/>" + each + total);
}
else
{
var before_time = Date.now();
if (args && args[0] == ":")
vimperator.execute(args);
else
eval(args);
var after_time = Date.now();
if (after_time - before_time >= 100)
vimperator.echo("Total time: " + ((after_time - before_time) / 1000.0) + " sec");
else
vimperator.echo("Total time: " + (after_time - before_time) + " msec");
}
}
catch (e)
{
vimperator.echoerr(e);
}
},
{
usage: ["{count}time {code|:command}"],
short_help: "Profile a piece of code or a command",
help: "Runs {code} {count} times (default 1) and returns the elapsed time. " +
"{code} is always passed to JavaScript's eval(), which might be slow, so take the results with a grain of salt. " +
"If {code} starts with a :, it is executed as a vimperator command"
}
));
addDefaultCommand(new Command(["u[ndo]"],
function(args, special, count) { if (count < 1) count = 1; undoCloseTab(count-1); },
{