hotspot/src/share/vm/ci/ciTypeArray.cpp
author thartmann
Tue, 03 Nov 2015 09:41:03 +0100
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8141132: JEP 254: Compact Strings Summary: Adopt a more space-efficient internal representation for strings. Reviewed-by: alanb, bdelsart, coleenp, iklam, jiangli, jrose, kevinw, naoto, pliden, roland, smarks, twisti Contributed-by: Brent Christian <brent.christian@oracle.com>, Vivek Deshpande <vivek.r.deshpande@intel.com>, Tobias Hartmann <tobias.hartmann@oracle.com>, Charlie Hunt <charlie.hunt@oracle.com>, Vladimir Kozlov <vladimir.kozlov@oracle.com>, Roger Riggs <roger.riggs@oracle.com>, Xueming Shen <xueming.shen@oracle.com>, Aleksey Shipilev <aleksey.shipilev@oracle.com>, Sandhya Viswanathan <sandhya.viswanathan@intel.com>
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/*
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 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "ci/ciTypeArray.hpp"
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#include "ci/ciUtilities.hpp"
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// ciTypeArray
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//
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// This class represents an typeArrayOop in the HotSpot virtual
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// machine.
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// ------------------------------------------------------------------
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// ciTypeArray::char_at
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//
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// Implementation of the char_at method.
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jchar ciTypeArray::char_at(int index) {
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  VM_ENTRY_MARK;
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  assert(index >= 0 && index < length(), "out of range");
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  jchar c = get_typeArrayOop()->char_at(index);
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#ifdef ASSERT
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  jchar d = element_value(index).as_char();
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  assert(c == d, "");
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#endif //ASSERT
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  return c;
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}
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// ------------------------------------------------------------------
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// ciTypeArray::byte_at
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//
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// Implementation of the byte_at method.
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jbyte ciTypeArray::byte_at(int index) {
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  VM_ENTRY_MARK;
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  assert(index >= 0 && index < length(), "out of range");
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  return get_typeArrayOop()->byte_at(index);
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}