0N/A/*
2027N/A * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
1472N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1472N/A * or visit www.oracle.com if you need additional information or have any
1472N/A * questions.
0N/A *
0N/A */
0N/A
1879N/A#include "precompiled.hpp"
1879N/A#include "interpreter/bytecodeStream.hpp"
1879N/A#include "interpreter/bytecodes.hpp"
0N/A
0N/ABytecodes::Code RawBytecodeStream::raw_next_special(Bytecodes::Code code) {
0N/A assert(!is_last_bytecode(), "should have been checked");
0N/A // set next bytecode position
413N/A address bcp = RawBytecodeStream::bcp();
413N/A address end = method()->code_base() + end_bci();
413N/A int l = Bytecodes::raw_special_length_at(bcp, end);
0N/A if (l <= 0 || (_bci + l) > _end_bci) {
0N/A code = Bytecodes::_illegal;
0N/A } else {
0N/A _next_bci += l;
0N/A assert(_bci < _next_bci, "length must be > 0");
0N/A // set attributes
0N/A _is_wide = false;
0N/A // check for special (uncommon) cases
0N/A if (code == Bytecodes::_wide) {
413N/A if (bcp + 1 >= end) {
413N/A code = Bytecodes::_illegal;
413N/A } else {
413N/A code = (Bytecodes::Code)bcp[1];
413N/A _is_wide = true;
413N/A }
0N/A }
0N/A }
1485N/A _raw_code = code;
0N/A return code;
0N/A}
1485N/A
1485N/A#ifdef ASSERT
1485N/Avoid BaseBytecodeStream::assert_raw_index_size(int size) const {
1485N/A if (raw_code() == Bytecodes::_invokedynamic && is_raw()) {
1485N/A // in raw mode, pretend indy is "bJJ__"
1485N/A assert(size == 2, "raw invokedynamic instruction has 2-byte index only");
1485N/A } else {
2027N/A bytecode().assert_index_size(size, raw_code(), is_wide());
1485N/A }
1485N/A}
1485N/A
1485N/Avoid BaseBytecodeStream::assert_raw_stream(bool want_raw) const {
1485N/A if (want_raw) {
1485N/A assert( is_raw(), "this function only works on raw streams");
1485N/A } else {
1485N/A assert(!is_raw(), "this function only works on non-raw streams");
1485N/A }
1485N/A}
1485N/A#endif //ASSERT