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-rw-r--r--js/src/jit-test/tests/ion/nativeElementAccesses.js44
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/nativeElementAccesses.js b/js/src/jit-test/tests/ion/nativeElementAccesses.js
new file mode 100644
index 000000000..c126750ac
--- /dev/null
+++ b/js/src/jit-test/tests/ion/nativeElementAccesses.js
@@ -0,0 +1,44 @@
+
+function testOverwritingSparseHole()
+{
+ var x = [];
+ for (var i = 0; i < 50; i++)
+ x[i] = i;
+ var hit = false;
+ Object.defineProperty(x, 40, {set: function() { hit = true; }});
+ for (var i = 0; i < 50; i++)
+ x[i] = 10;
+ assertEq(hit, true);
+}
+testOverwritingSparseHole();
+
+function testReadingSparseHole()
+{
+ var x = [];
+ for (var i = 5; i < 50; i++)
+ x[i] = i;
+ var hit = false;
+ Object.defineProperty(x, 40, {get: function() { hit = true; return 5.5; }});
+ var res = 0;
+ for (var i = 0; i < 50; i++) {
+ res += x[i];
+ if (i == 10)
+ res = 0;
+ }
+ assertEq(res, 1135.5);
+ assertEq(hit, true);
+}
+testReadingSparseHole();
+
+function testInSparseHole()
+{
+ var x = [];
+ for (var i = 5; i < 50; i++)
+ x[i] = i;
+ Object.defineProperty(x, 40, {get: function() {}});
+ var res = 0;
+ for (var i = 0; i < 50; i++)
+ res += (i in x) ? 1 : 0;
+ assertEq(res, 45);
+}
+testInSparseHole();