Change the zone allocation api.

runtime/vm/symbols.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/symbols.h"
 
 #include "vm/isolate.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/raw_object.h"
@@ skipping 74 matching lines @@
   intptr_t hash = str.Hash();
   intptr_t index = FindIndex(symbol_table, str, 0, str.Length(), hash);
   ASSERT(symbol_table.At(index) == String::null());
   InsertIntoSymbolTable(symbol_table, str, index);
 }
 
 
 RawString* Symbols::New(const char* str) {
   intptr_t width = 0;
   intptr_t len = Utf8::CodePointCount(str, &width);
-  intptr_t size = len * width;
   Zone* zone = Isolate::Current()->current_zone();
   if (len == 0) {
     return Symbols::New(reinterpret_cast<uint8_t*>(NULL), 0);
   } else if (width == 1) {
-    uint8_t* characters = reinterpret_cast<uint8_t*>(zone->Allocate(size));
+    uint8_t* characters = zone->Alloc<uint8_t>(len);
     Utf8::Decode(str, characters, len);
     return New(characters, len);
   } else if (width == 2) {
-    uint16_t* characters = reinterpret_cast<uint16_t*>(zone->Allocate(size));
+    uint16_t* characters = zone->Alloc<uint16_t>(len);
     Utf8::Decode(str, characters, len);
     return New(characters, len);
   }
   ASSERT(width == 4);
-  uint32_t* characters = reinterpret_cast<uint32_t*>(zone->Allocate(size));
+  uint32_t* characters = zone->Alloc<uint32_t>(len);
   Utf8::Decode(str, characters, len);
   return New(characters, len);
 }
 
 
 template<typename T>
 RawString* Symbols::New(const T* characters, intptr_t len) {
   Isolate* isolate = Isolate::Current();
   ASSERT(isolate != Dart::vm_isolate());
   String& symbol = String::Handle(isolate, String::null());
@@ skipping 172 matching lines @@
   String& symbol = String::Handle();
   symbol ^= symbol_table.At(index);
   while (!symbol.IsNull() && !symbol.Equals(str, begin_index, len)) {
     index = (index + 1) % table_size;  // Move to next element.
     symbol ^= symbol_table.At(index);
   }
   return index;  // Index of symbol if found or slot into which to add symbol.
 }
 
 }  // namespace dart