Mercurial > spidermonkey-playground

diff tcb.js @ 5:1f38f4f61768

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added global lastException and lastExceptionTraceback properties to the TCB global, which are similar to python's exc_info().
author Atul Varma <varmaa@toolness.com>
date Fri, 19 Jun 2009 03:49:44 -0700
parents 71de19be1054
children 500e267ed094
line wrap: on
line diff
--- a/tcb.js	Fri Jun 19 02:58:49 2009 -0700
+++ b/tcb.js	Fri Jun 19 03:49:44 2009 -0700
@@ -1,6 +1,7 @@
-function printTraceback() {
+function printTraceback(frame) {
   print("Traceback (most recent call last):");
-  var frame = stack();
+  if (frame === undefined)
+    frame = stack();
   var lines = [];
   while (frame) {
     var line = ('  File "' + frame.filename + '", line ' +
@@ -15,7 +16,20 @@
   print("Hello World.");
 }
 
+function throwError() {
+  function innerThrowError() {
+    throw new Error("hi");
+  }
+  innerThrowError();
+}
+
 showInfo();
-printTraceback();
+try {
+  print("about to throw.");
+  throwError();
+} catch (e) {
+  printTraceback(lastExceptionTraceback);
+  print(e);
+}
 
 var wrapped = wrap({}, {});