diff options
Diffstat (limited to 'js/src/jit-test/tests/watchtower/megamorphic-has-prop.js')
-rw-r--r-- | js/src/jit-test/tests/watchtower/megamorphic-has-prop.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/watchtower/megamorphic-has-prop.js b/js/src/jit-test/tests/watchtower/megamorphic-has-prop.js new file mode 100644 index 0000000000..98481c636e --- /dev/null +++ b/js/src/jit-test/tests/watchtower/megamorphic-has-prop.js @@ -0,0 +1,33 @@ +function hasOwnProp(o, p) { + return Object.prototype.hasOwnProperty.call(o, p); +} +function testHasProp() { + var C = Object.create(null); + C.protox = 0; + var B = Object.create(C); + var objs = []; + for (var i = 0; i < 50; i++) { + var A = Object.create(B); + A["x" + i] = 0; + A.ownx = 3; + objs.push(A); + } + for (var i = 0; i < 10; i++) { + for (var j = 0; j < objs.length; j++) { + var obj = objs[j]; + assertEq(hasOwnProp(obj, "protox"), false); + assertEq("protox" in obj, true); + assertEq(obj.protox, 0); + + assertEq(hasOwnProp(obj, "ownx"), true); + assertEq("ownx" in obj, true); + assertEq(obj.ownx, 3); + + assertEq("missing" in obj, false); + assertEq(hasOwnProp(obj, "missing"), false); + assertEq(obj.missing, undefined); + } + } +} +testHasProp(); + |