[es6] Implement Reflect.enumerate.

test/mjsunit/harmony/reflect-enumerate.js

Index: test/mjsunit/harmony/reflect-enumerate.js
diff --git a/test/mjsunit/for-in.js b/test/mjsunit/harmony/reflect-enumerate.js
similarity index 69%
copy from test/mjsunit/for-in.js
copy to test/mjsunit/harmony/reflect-enumerate.js
index 644c27a63277b25729734afb061a286f38e1e801..bbc364e7b97282c40915bff094b1a7d9e5fb472c 100644
--- a/test/mjsunit/for-in.js
+++ b/test/mjsunit/harmony/reflect-enumerate.js
@@ -1,4 +1,4 @@
-// Copyright 2008 the V8 project authors. All rights reserved.
+// Copyright 2008-2015 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -25,9 +25,14 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// This is adapted from mjsunit/for-in.js.
+
+// Flags: --harmony-reflect
+
+
 function props(x) {
   var array = [];
-  for (var p in x) array.push(p);
+  for (var p of Reflect.enumerate(x)) array.push(p);
   return array.sort();
 }
 
@@ -65,60 +70,23 @@ assertEquals(2, props(a).length, "proplen2");
 a[1] = 0;
 assertEquals(3, props(a).length, "proplen3");
 
-for (var hest = 'hest' in {}) { }
-assertEquals('hest', hest, "empty-no-override");
-
 var result = '';
-for (var p in {a : [0], b : 1}) { result += p; }
+for (var p of Reflect.enumerate({a : [0], b : 1})) { result += p; }
 assertEquals('ab', result, "ab");
 
 var result = '';
-for (var p in {a : {v:1}, b : 1}) { result += p; }
+for (var p of Reflect.enumerate({a : {v:1}, b : 1})) { result += p; }
 assertEquals('ab', result, "ab-nodeep");
 
 var result = '';
-for (var p in { get a() {}, b : 1}) { result += p; }
+for (var p of Reflect.enumerate({ get a() {}, b : 1})) { result += p; }
 assertEquals('ab', result, "abget");
 
 var result = '';
-for (var p in { get a() {}, set a(x) {}, b : 1}) { result += p; }
-assertEquals('ab', result, "abgetset");
-
-
-// Test that for-in in the global scope works with a keyed property as "each".
-// Test outside a loop and in a loop for multiple iterations.
-a = [1,2,3,4];
-x = {foo:5, bar:6, zip:7, glep:9, 10:11};
-delete x.bar;
-y = {}
-
-for (a[2] in x) {
-  y[a[2]] = x[a[2]];
-}
-
-assertEquals(5, y.foo, "y.foo");
-assertEquals("undefined", typeof y.bar, "y.bar");
-assertEquals(7, y.zip, "y.zip");
-assertEquals(9, y.glep, "y.glep");
-assertEquals(11, y[10], "y[10]");
-assertEquals("undefined", typeof y[2], "y[2]");
-assertEquals("undefined", typeof y[0], "y[0]");
-
-for (i=0 ; i < 3; ++i) {
-  y = {}
-
-  for (a[2] in x) {
-    y[a[2]] = x[a[2]];
-  }
-
-  assertEquals(5, y.foo, "y.foo");
-  assertEquals("undefined", typeof y.bar, "y.bar");
-  assertEquals(7, y.zip, "y.zip");
-  assertEquals(9, y.glep, "y.glep");
-  assertEquals(11, y[10], "y[10]");
-  assertEquals("undefined", typeof y[2], "y[2]");
-  assertEquals("undefined", typeof y[0], "y[0]");
+for (var p of Reflect.enumerate({ get a() {}, set a(x) {}, b : 1})) {
+  result += p;
 }
+assertEquals('ab', result, "abgetset");
 
 (function() {
   var large_key = 2147483650;
@@ -126,7 +94,7 @@ for (i=0 ; i < 3; ++i) {
   o[large_key] = 1;
   o.__proto__[large_key] = 1;
   var keys = [];
-  for (var k in o) {
+  for (var k of Reflect.enumerate(o)) {
     keys.push(k);
   }
   assertEquals(["2147483650"], keys);