Merge revision 3813 to 3930 from bleeding_edge to partial snapshots branch.

src/runtime.js

 // Copyright 2006-2008 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 160 matching lines @@
 }
 
 
 // Left operand (this) is already a string.
 function STRING_ADD_LEFT(y) {
   if (!IS_STRING(y)) {
     if (IS_STRING_WRAPPER(y)) {
       y = %_ValueOf(y);
     } else {
       y = IS_NUMBER(y)
-          ? %NumberToString(y)
+          ? %_NumberToString(y)
           : %ToString(%ToPrimitive(y, NO_HINT));
     }
   }
   return %_StringAdd(this, y);
 }
 
 
 // Right operand (y) is already a string.
 function STRING_ADD_RIGHT(y) {
   var x = this;
   if (!IS_STRING(x)) {
     if (IS_STRING_WRAPPER(x)) {
       x = %_ValueOf(x);
     } else {
       x = IS_NUMBER(x)
-          ? %NumberToString(x)
+          ? %_NumberToString(x)
           : %ToString(%ToPrimitive(x, NO_HINT));
     }
   }
   return %_StringAdd(x, y);
 }
 
 
 // ECMA-262, section 11.6.2, page 50.
 function SUB(y) {
   var x = IS_NUMBER(this) ? this : %ToNumber(this);
@@ skipping 180 matching lines @@
 // has a property with the given key; return the key as a string if
 // it has. Otherwise returns null. Used in for-in statements.
 function FILTER_KEY(key) {
   var string = %ToString(key);
   if (%HasProperty(this, string)) return string;
   return null;
 }
 
 
 function CALL_NON_FUNCTION() {
-  var callee = %GetCalledFunction();
-  var delegate = %GetFunctionDelegate(callee);
+  var delegate = %GetFunctionDelegate(this);
   if (!IS_FUNCTION(delegate)) {
-    throw %MakeTypeError('called_non_callable', [typeof callee]);
+    throw %MakeTypeError('called_non_callable', [typeof this]);
   }
-
-  var parameters = %NewArguments(delegate);
-  return delegate.apply(callee, parameters);
+  return delegate.apply(this, arguments);
 }
 
 
 function CALL_NON_FUNCTION_AS_CONSTRUCTOR() {
-  var callee = %GetCalledFunction();
-  var delegate = %GetConstructorDelegate(callee);
+  var delegate = %GetConstructorDelegate(this);
   if (!IS_FUNCTION(delegate)) {
-    throw %MakeTypeError('called_non_callable', [typeof callee]);
+    throw %MakeTypeError('called_non_callable', [typeof this]);
   }
-
-  var parameters = %NewArguments(delegate);
-  return delegate.apply(callee, parameters);
+  return delegate.apply(this, arguments);
 }
 
 
 function APPLY_PREPARE(args) {
   var length;
   // First check whether length is a positive Smi and args is an
   // array. This is the fast case. If this fails, we do the slow case
   // that takes care of more eventualities.
   if (IS_ARRAY(args)) {
     length = args.length;
@@ skipping 94 matching lines @@
   if (IS_STRING(x)) return %StringToNumber(x);
   if (IS_BOOLEAN(x)) return x ? 1 : 0;
   if (IS_UNDEFINED(x)) return $NaN;
   return (IS_NULL(x)) ? 0 : ToNumber(%DefaultNumber(x));
 }
 
 
 // ECMA-262, section 9.8, page 35.
 function ToString(x) {
   if (IS_STRING(x)) return x;
+  if (IS_NUMBER(x)) return %_NumberToString(x);
+  if (IS_BOOLEAN(x)) return x ? 'true' : 'false';
+  if (IS_UNDEFINED(x)) return 'undefined';
+  return (IS_NULL(x)) ? 'null' : %ToString(%DefaultString(x));
+}
+
+function NonStringToString(x) {
   if (IS_NUMBER(x)) return %NumberToString(x);
   if (IS_BOOLEAN(x)) return x ? 'true' : 'false';
   if (IS_UNDEFINED(x)) return 'undefined';
   return (IS_NULL(x)) ? 'null' : %ToString(%DefaultString(x));
 }
 
 
 // ECMA-262, section 9.9, page 36.
 function ToObject(x) {
   if (IS_STRING(x)) return new $String(x);
@@ skipping 96 matching lines @@
   throw %MakeTypeError('cannot_convert_to_primitive', []);
 }
 
 
 // NOTE: Setting the prototype for Array must take place as early as
 // possible due to code generation for array literals.  When
 // generating code for a array literal a boilerplate array is created
 // that is cloned when running the code.  It is essiential that the
 // boilerplate gets the right prototype.
 %FunctionSetPrototype($Array, new $Array(0));