// Copyright 2014 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
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
#ifndef V8_ZONE_ALLOCATOR_H_
#define V8_ZONE_ALLOCATOR_H_
-#include "zone.h"
+#include <limits>
+
+#include "src/zone.h"
namespace v8 {
namespace internal {
pointer address(reference x) const {return &x;}
const_pointer address(const_reference x) const {return &x;}
- pointer allocate(size_type count, const void* hint = 0) {
- size_t size = count * sizeof(value_type);
- size = RoundUp(size, kPointerSize);
- return static_cast<pointer>(zone_->New(size));
+ pointer allocate(size_type n, const void* hint = 0) {
+ return static_cast<pointer>(zone_->NewArray<value_type>(
+ static_cast<int>(n)));
}
void deallocate(pointer p, size_type) { /* noop for Zones */ }
size_type max_size() const throw() {
- size_type max = static_cast<size_type>(-1) / sizeof(T);
- return (max > 0 ? max : 1);
+ return std::numeric_limits<int>::max() / sizeof(value_type);
}
void construct(pointer p, const T& val) {
new(static_cast<void*>(p)) T(val);
Zone* zone_;
};
+typedef zone_allocator<bool> ZoneBoolAllocator;
+typedef zone_allocator<int> ZoneIntAllocator;
} } // namespace v8::internal
#endif // V8_ZONE_ALLOCATOR_H_