js/src/jit-test/tests/jaeger/propertyOptimize-3.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 // Properties cleared in the middle of a single function constructor.
michael@0 3
michael@0 4 function foo(x, y) {
michael@0 5 this.f = 0;
michael@0 6 this.g = x + y;
michael@0 7 this.h = 2;
michael@0 8 }
michael@0 9
michael@0 10 var called = false;
michael@0 11 var a = 0;
michael@0 12 var b = {valueOf: function() { Object.defineProperty(Object.prototype, 'g', {set: function() { called = true }}) }};
michael@0 13 var c = new foo(a, b);
michael@0 14
michael@0 15 assertEq(called, true);
michael@0 16 assertEq(c.g, undefined);
michael@0 17
michael@0 18 // Properties cleared in the middle of a constructor callee.
michael@0 19
michael@0 20 function foo2(x, y) {
michael@0 21 this.a = 0;
michael@0 22 this.b = 1;
michael@0 23 bar2.call(this, x, y);
michael@0 24 this.c = 2;
michael@0 25 }
michael@0 26 function bar2(x, y) {
michael@0 27 this.d = x + y;
michael@0 28 this.e = 3;
michael@0 29 }
michael@0 30
michael@0 31 var called2 = false;
michael@0 32 var xa = 0;
michael@0 33 var xb = {valueOf: function() { Object.defineProperty(Object.prototype, 'e', {set: function() { called2 = true }}) }};
michael@0 34 var xc = new foo2(xa, xb);
michael@0 35
michael@0 36 assertEq(called2, true);
michael@0 37 assertEq(xc.e, undefined);
michael@0 38 assertEq(xc.c, 2);
michael@0 39
michael@0 40 // Properties cleared after a constructor callee.
michael@0 41
michael@0 42 function foo3() {
michael@0 43 this.aa = 0;
michael@0 44 this.bb = 1;
michael@0 45 bar3.call(this);
michael@0 46 this.cc = 2;
michael@0 47 baz();
michael@0 48 xbar3.call(this);
michael@0 49 this.dd = 3;
michael@0 50 }
michael@0 51 function bar3() {
michael@0 52 this.ee = 4;
michael@0 53 }
michael@0 54 function xbar3() {
michael@0 55 this.ff = 5;
michael@0 56 }
michael@0 57 function baz() {
michael@0 58 eval("xbar3.call = function() { called3 = true }");
michael@0 59 }
michael@0 60
michael@0 61 var called3 = false;
michael@0 62 var c3 = new foo3();
michael@0 63 assertEq(c3.cc, 2);
michael@0 64 assertEq(c3.ee, 4);
michael@0 65 assertEq(c3.ff, undefined);
michael@0 66 assertEq(c3.dd, 3);
michael@0 67 assertEq(called3, true);

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