From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- .../tests/basic/unboxed-object-set-property.js | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 js/src/jit-test/tests/basic/unboxed-object-set-property.js (limited to 'js/src/jit-test/tests/basic/unboxed-object-set-property.js') diff --git a/js/src/jit-test/tests/basic/unboxed-object-set-property.js b/js/src/jit-test/tests/basic/unboxed-object-set-property.js new file mode 100644 index 000000000..fdcfcf6b2 --- /dev/null +++ b/js/src/jit-test/tests/basic/unboxed-object-set-property.js @@ -0,0 +1,31 @@ + +// Use the correct receiver when non-native objects are prototypes of other objects. + +function Thing(a, b) { + this.a = a; + this.b = b; +} + +function foo() { + var array = []; + for (var i = 0; i < 10000; i++) + array.push(new Thing(i, i + 1)); + + var proto = new Thing(1, 2); + var obj = Object.create(proto); + + Object.defineProperty(Thing.prototype, "c", {set:function() { this.d = 0; }}); + obj.c = 3; + assertEq(obj.c, undefined); + assertEq(obj.d, 0); + assertEq(obj.hasOwnProperty("d"), true); + assertEq(proto.d, undefined); + assertEq(proto.hasOwnProperty("d"), false); + + obj.a = 3; + assertEq(obj.a, 3); + assertEq(proto.a, 1); + assertEq(obj.hasOwnProperty("a"), true); +} + +foo(); -- cgit v1.2.3