Fix attributes of length property for function objects (#3570)

fix length property of function objects to be configurable (ECMA-262 v6, 19.2.4.1) JerryScript-DCO-1.0-Signed-off-by: HyukWoo Park hyukwoo.park@samsung.com
2020-03-12 23:00:53 +09:00
parent 6ef0a0e07e
commit 47d85a12e2
5 changed files with 80 additions and 2 deletions
@@ -100,3 +100,24 @@ var builtin_typedArrays = [
    assert(ta.hasOwnProperty('length') === false);
  }
 })();
+
+(function () {
+  /* test length property of function objects */
+  var normal_func = function () {};
+  var arrow_func = () => {};
+
+  var functions = [normal_func, arrow_func];
+
+  for (func of functions) {
+    var desc = Object.getOwnPropertyDescriptor(func, 'length');
+    assert(desc.writable === false);
+    assert(desc.enumerable === false);
+    assert(desc.configurable === true);
+  }
+
+  for (func of functions) {
+    assert(func.hasOwnProperty('length') === true);
+    assert(delete func.length);
+    assert(func.hasOwnProperty('length') === false);
+  }
+})();