/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* * * Date: 25 November 2002 * SUMMARY: Testing scope * See http://bugzilla.mozilla.org/show_bug.cgi?id=181834 * * This bug only bit in Rhino interpreted mode, when the * 'compile functions with dynamic scope' feature was set. *
*/ //----------------------------------------------------------------------------- var UBound = 0; var BUGNUMBER = 181834; var summary = 'Testing scope'; var status = ''; var statusitems = []; var actual = ''; var actualvalues = []; var expect= ''; var expectedvalues = [];
/* * If N<=0, |outer_d| just gets incremented once, * so the return value should be 1 in this case. * * If N>0, we end up calling inner() N+1 times: * inner(N), inner(N-1), ... , inner(0). * * Each call to inner() increments |outer_d| by 1. * The last call, inner(0), returns the final value * of |outer_d|, which should be N+1.
*/ function outer(N)
{ var outer_d = 0; return inner(N);
/* * This only has meaning in Rhino -
*/
setDynamicScope(true);
/* * Recompile the function |outer| via eval() in order to * feel the effect of the dynamic scope mode we have set.
*/ var s = outer.toString();
eval(s);
status = inSection(1);
actual = outer(-5);
expect = 1;
addThis();
status = inSection(2);
actual = outer(0);
expect = 1;
addThis();
status = inSection(3);
actual = outer(5);
expect = 6;
addThis();
/* * Sanity check: do same steps with the dynamic flag off
*/
setDynamicScope(false);
/* * Recompile the function |outer| via eval() in order to * feel the effect of the dynamic scope mode we have set.
*/
eval(s);
status = inSection(4);
actual = outer(-5);
expect = 1;
addThis();
status = inSection(5);
actual = outer(0);
expect = 1;
addThis();
status = inSection(6);
actual = outer(5);
expect = 6;
addThis();
function setDynamicScope(flag)
{ if (this.Packages)
{ var cx = this.Packages.org.mozilla.javascript.Context.getCurrentContext();
cx.setCompileFunctionsWithDynamicScope(flag);
}
}
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