Version 3.6.5

src/v8natives.js

Index: src/v8natives.js
===================================================================
--- src/v8natives.js	(revision 9531)
+++ src/v8natives.js	(working copy)
@@ -193,13 +193,14 @@
 function SetUpGlobal() {
   %CheckIsBootstrapping();
   // ECMA 262 - 15.1.1.1.
-  %SetProperty(global, "NaN", $NaN, DONT_ENUM | DONT_DELETE);
+  %SetProperty(global, "NaN", $NaN, DONT_ENUM | DONT_DELETE | READ_ONLY);
 
   // ECMA-262 - 15.1.1.2.
-  %SetProperty(global, "Infinity", 1/0, DONT_ENUM | DONT_DELETE);
+  %SetProperty(global, "Infinity", 1/0, DONT_ENUM | DONT_DELETE | READ_ONLY);
 
   // ECMA-262 - 15.1.1.3.
-  %SetProperty(global, "undefined", void 0, DONT_ENUM | DONT_DELETE);
+  %SetProperty(global, "undefined", void 0,
+               DONT_ENUM | DONT_DELETE | READ_ONLY);
 
   // Set up non-enumerable function on the global object.
   InstallFunctions(global, DONT_ENUM, $Array(
@@ -1042,12 +1043,21 @@
     throw MakeTypeError("handler_returned_undefined", [handler, "fix"]);
   }
 
-  if (IS_SPEC_FUNCTION(obj)) {
+  if (%IsJSFunctionProxy(obj)) {
     var callTrap = %GetCallTrap(obj);
     var constructTrap = %GetConstructTrap(obj);
     var code = DelegateCallAndConstruct(callTrap, constructTrap);
     %Fix(obj);  // becomes a regular function
     %SetCode(obj, code);
+    // TODO(rossberg): What about length and other properties? Not specified.
+    // We just put in some half-reasonable defaults for now.
+    var prototype = new $Object();
+    $Object.defineProperty(prototype, "constructor",
+      {value: obj, writable: true, enumerable: false, configrable: true});
+    $Object.defineProperty(obj, "prototype",
+      {value: prototype, writable: true, enumerable: false, configrable: false})
+    $Object.defineProperty(obj, "length",
+      {value: 0, writable: true, enumerable: false, configrable: false});
   } else {
     %Fix(obj);
   }