Array.prototype.{every, filter, find, findIndex, forEach, map, some}: Use fresh primitive wrapper f…

src/array.js

Index: src/array.js
diff --git a/src/array.js b/src/array.js
index 3d4a066bc5e0c244a3e0187d267e3e67e8515a01..368ef1f0bc5bef6905222e457606a1c81cbbc0ca 100644
--- a/src/array.js
+++ b/src/array.js
@@ -1126,9 +1126,8 @@ function ArrayFilter(f, receiver) {
   }
   if (IS_NULL_OR_UNDEFINED(receiver)) {
     receiver = %GetDefaultReceiver(f) || receiver;
-  } else if (!IS_SPEC_OBJECT(receiver) && %IsSloppyModeFunction(f)) {
-    receiver = ToObject(receiver);
   }
+  var needs_wrapper = SHOULD_CREATE_WRAPPER(f, receiver);
 
   var result = new $Array();
   var accumulator = new InternalArray();
@@ -1139,7 +1138,8 @@ function ArrayFilter(f, receiver) {
       var element = array[i];
       // Prepare break slots for debugger step in.
       if (stepping) %DebugPrepareStepInIfStepping(f);
-      if (%_CallFunction(receiver, element, i, array, f)) {
+      var new_receiver = needs_wrapper ? ToObject(receiver) : receiver;
+      if (%_CallFunction(new_receiver, element, i, array, f)) {
         accumulator[accumulator_length++] = element;
       }
     }
@@ -1162,9 +1162,8 @@ function ArrayForEach(f, receiver) {
   }
   if (IS_NULL_OR_UNDEFINED(receiver)) {
     receiver = %GetDefaultReceiver(f) || receiver;
-  } else if (!IS_SPEC_OBJECT(receiver) && %IsSloppyModeFunction(f)) {
-    receiver = ToObject(receiver);
   }
+  var needs_wrapper = SHOULD_CREATE_WRAPPER(f, receiver);
 
   var stepping = DEBUG_IS_ACTIVE && %DebugCallbackSupportsStepping(f);
   for (var i = 0; i < length; i++) {
@@ -1172,7 +1171,8 @@ function ArrayForEach(f, receiver) {
       var element = array[i];
       // Prepare break slots for debugger step in.
       if (stepping) %DebugPrepareStepInIfStepping(f);
-      %_CallFunction(receiver, element, i, array, f);
+      var new_receiver = needs_wrapper ? ToObject(receiver) : receiver;
+      %_CallFunction(new_receiver, element, i, array, f);
     }
   }
 }
@@ -1193,9 +1193,8 @@ function ArraySome(f, receiver) {
   }
   if (IS_NULL_OR_UNDEFINED(receiver)) {
     receiver = %GetDefaultReceiver(f) || receiver;
-  } else if (!IS_SPEC_OBJECT(receiver) && %IsSloppyModeFunction(f)) {
-    receiver = ToObject(receiver);
   }
+  var needs_wrapper = SHOULD_CREATE_WRAPPER(f, receiver);
 
   var stepping = DEBUG_IS_ACTIVE && %DebugCallbackSupportsStepping(f);
   for (var i = 0; i < length; i++) {
@@ -1203,7 +1202,8 @@ function ArraySome(f, receiver) {
       var element = array[i];
       // Prepare break slots for debugger step in.
       if (stepping) %DebugPrepareStepInIfStepping(f);
-      if (%_CallFunction(receiver, element, i, array, f)) return true;
+      var new_receiver = needs_wrapper ? ToObject(receiver) : receiver;
+      if (%_CallFunction(new_receiver, element, i, array, f)) return true;
     }
   }
   return false;
@@ -1223,9 +1223,8 @@ function ArrayEvery(f, receiver) {
   }
   if (IS_NULL_OR_UNDEFINED(receiver)) {
     receiver = %GetDefaultReceiver(f) || receiver;
-  } else if (!IS_SPEC_OBJECT(receiver) && %IsSloppyModeFunction(f)) {
-    receiver = ToObject(receiver);
   }
+  var needs_wrapper = SHOULD_CREATE_WRAPPER(f, receiver);
 
   var stepping = DEBUG_IS_ACTIVE && %DebugCallbackSupportsStepping(f);
   for (var i = 0; i < length; i++) {
@@ -1233,7 +1232,8 @@ function ArrayEvery(f, receiver) {
       var element = array[i];
       // Prepare break slots for debugger step in.
       if (stepping) %DebugPrepareStepInIfStepping(f);
-      if (!%_CallFunction(receiver, element, i, array, f)) return false;
+      var new_receiver = needs_wrapper ? ToObject(receiver) : receiver;
+      if (!%_CallFunction(new_receiver, element, i, array, f)) return false;
     }
   }
   return true;
@@ -1252,9 +1252,8 @@ function ArrayMap(f, receiver) {
   }
   if (IS_NULL_OR_UNDEFINED(receiver)) {
     receiver = %GetDefaultReceiver(f) || receiver;
-  } else if (!IS_SPEC_OBJECT(receiver) && %IsSloppyModeFunction(f)) {
-    receiver = ToObject(receiver);
   }
+  var needs_wrapper = SHOULD_CREATE_WRAPPER(f, receiver);
 
   var result = new $Array();
   var accumulator = new InternalArray(length);
@@ -1264,7 +1263,8 @@ function ArrayMap(f, receiver) {
       var element = array[i];
       // Prepare break slots for debugger step in.
       if (stepping) %DebugPrepareStepInIfStepping(f);
-      accumulator[i] = %_CallFunction(receiver, element, i, array, f);
+      var new_receiver = needs_wrapper ? ToObject(receiver) : receiver;
+      accumulator[i] = %_CallFunction(new_receiver, element, i, array, f);
     }
   }
   %MoveArrayContents(accumulator, result);