Throw if first argument to TypedArray.set is a number.

src/typedarray.js

 // Copyright 2013 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:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 136 matching lines @@
 function TypedArraySet(obj, offset) {
   var intOffset = IS_UNDEFINED(offset) ? 0 : TO_INTEGER(offset);
   if (intOffset < 0) {
     throw MakeTypeError("typed_array_set_negative_offset");
   }
   if (%TypedArraySetFastCases(this, obj, intOffset))
     return;
 
   var l = obj.length;
   if (IS_UNDEFINED(l)) {
+    if (IS_NUMBER(obj))

[Benedikt Meurer, 2013/07/16 05:39:57]

This if is missing { and }.

+      // For number as a first argument, throw TypeError
+      // instead of silently ignoring the call, so that
+      // the user knows (s)he did something wrong.
+      // (Consistent with Firefox and Blink/WebKit)
+      throw MakeTypeError("invalid_argument");
     return;
   }
   if (intOffset + l > this.length) {
     throw MakeRangeError("typed_array_set_source_too_large");
   }
   for (var i = 0; i < l; i++) {
     this[intOffset + i] = obj[i];
   }
 }
 
@@ skipping 338 matching lines @@
 
       "getFloat32", DataViewGetFloat32,
       "setFloat32", DataViewSetFloat32,
 
       "getFloat64", DataViewGetFloat64,
       "setFloat64", DataViewSetFloat64
   ));
 }
 
 SetupDataView();