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StackTraceLimitOOS.js
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99 lines (92 loc) · 2.29 KB
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//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------
var output = (function(){
var glob = this;
var buf = "";
return {
clear: function() {
buf = "";
},
echo: function(s) {
buf += s + "\n";
},
all: function() {
return buf;
},
first: function(lines) {
var i = -1, len;
while (lines--) {
i = buf.indexOf("\n", i + 1);
if (i < 0) {
break;
}
len = i;
}
return buf.substring(0, len);
},
last: function(lines) {
var i = buf.length;
while (lines--) {
if (i < 0) {
break;
}
i = buf.lastIndexOf("\n", i - 1);
}
return buf.substring(i);
},
capture: function(f) {
glob.echo = this.echo;
f();
glob.echo = undefined;
}
};
})();
function Dump(output)
{
if (this.echo)
{
this.echo(output);
}
else if (this.WScript)
{
WScript.Echo(output);
}
else
{
alert(output);
}
}
function throwExceptionWithCatch()
{
try
{
throwException();
}
catch(e)
{
Dump(TrimStackTracePath(e.stack));
}
}
function throwException()
{
function foo() {
bar();
}
function bar() {
foo();
}
foo();
}
function runtest(catchException)
{
return catchException == undefined ? throwExceptionWithCatch() : throwException();
}
if (this.WScript && this.WScript.LoadScriptFile) {
this.WScript.LoadScriptFile("TrimStackTracePath.js");
}
Error.stackTraceLimit = Infinity;
Dump("Error.stackTraceLimit: " + Error.stackTraceLimit);
output.capture(runtest);
Dump(output.first(1) + "\n ..." + output.last(20));