js/src/tests/ecma_5/strict/this-for-function-expression-recursion.js@6474c204b198 (annotated)
js/src/tests/ecma_5/strict/this-for-function-expression-recursion.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Any copyright is dedicated to the Public Domain. |
| michael@0 | 3 | * http://creativecommons.org/licenses/publicdomain/ |
| michael@0 | 4 | */ |
| michael@0 | 5 | |
| michael@0 | 6 | var gTestfile = 'this-for-function-expression-recursion.js'; |
| michael@0 | 7 | var BUGNUMBER = 611276; |
| michael@0 | 8 | var summary = "JSOP_CALLEE should push undefined, not null, for this"; |
| michael@0 | 9 | |
| michael@0 | 10 | print(BUGNUMBER + ": " + summary); |
| michael@0 | 11 | |
| michael@0 | 12 | /************** |
| michael@0 | 13 | * BEGIN TEST * |
| michael@0 | 14 | **************/ |
| michael@0 | 15 | |
| michael@0 | 16 | // Calling a named function expression (not function statement) uses the |
| michael@0 | 17 | // JSOP_CALLEE opcode. This opcode pushes its own |this|, distinct from the |
| michael@0 | 18 | // normal call path; verify that that |this| value is properly |undefined|. |
| michael@0 | 19 | |
| michael@0 | 20 | var calleeThisFun = |
| michael@0 | 21 | function calleeThisFun(recurring) |
| michael@0 | 22 | { |
| michael@0 | 23 | if (recurring) |
| michael@0 | 24 | return this; |
| michael@0 | 25 | return calleeThisFun(true); |
| michael@0 | 26 | }; |
| michael@0 | 27 | assertEq(calleeThisFun(false), this); |
| michael@0 | 28 | |
| michael@0 | 29 | var calleeThisStrictFun = |
| michael@0 | 30 | function calleeThisStrictFun(recurring) |
| michael@0 | 31 | { |
| michael@0 | 32 | "use strict"; |
| michael@0 | 33 | if (recurring) |
| michael@0 | 34 | return this; |
| michael@0 | 35 | return calleeThisStrictFun(true); |
| michael@0 | 36 | }; |
| michael@0 | 37 | assertEq(calleeThisStrictFun(false), undefined); |
| michael@0 | 38 | |
| michael@0 | 39 | /******************************************************************************/ |
| michael@0 | 40 | |
| michael@0 | 41 | if (typeof reportCompare === "function") |
| michael@0 | 42 | reportCompare(true, true); |
| michael@0 | 43 | |
| michael@0 | 44 | print("All tests passed!"); |
