js/src/jit-test/tests/basic/testBug502914.js

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 function testBug502914() {
michael@0 2 // Assigning a non-function to a function-valued property on trace should
michael@0 3 // bump the shape.
michael@0 4 function f1() {}
michael@0 5 function C() {}
michael@0 6 var x = C.prototype = {m: f1};
michael@0 7 x.m(); // brand scope
michael@0 8 var arr = [new C, new C, new C, x];
michael@0 9 try {
michael@0 10 for (var i = 0; i < 4; i++) {
michael@0 11 arr[i].m = 12;
michael@0 12 x.m(); // should throw last time through
michael@0 13 }
michael@0 14 } catch (exc) {
michael@0 15 return exc.constructor.name;
michael@0 16 }
michael@0 17 return "no exception";
michael@0 18 }
michael@0 19 assertEq(testBug502914(), "TypeError");

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