Mercurial > hg > truffle
view src/share/vm/classfile/classFileStream.cpp @ 8654:3bbad4ec6510
new phase: PushNodesThroughPi
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Thu, 04 Apr 2013 16:03:08 +0200 |
parents | ade95d680b42 |
children | de6a9e811145 |
line wrap: on
line source
/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "classfile/classFileStream.hpp" #include "classfile/vmSymbols.hpp" void ClassFileStream::truncated_file_error(TRAPS) { THROW_MSG(vmSymbols::java_lang_ClassFormatError(), "Truncated class file"); } ClassFileStream::ClassFileStream(u1* buffer, int length, char* source) { _buffer_start = buffer; _buffer_end = buffer + length; _current = buffer; _source = source; _need_verify = false; } u1 ClassFileStream::get_u1(TRAPS) { if (_need_verify) { guarantee_more(1, CHECK_0); } else { assert(1 <= _buffer_end - _current, "buffer overflow"); } return *_current++; } u2 ClassFileStream::get_u2(TRAPS) { if (_need_verify) { guarantee_more(2, CHECK_0); } else { assert(2 <= _buffer_end - _current, "buffer overflow"); } u1* tmp = _current; _current += 2; return Bytes::get_Java_u2(tmp); } u4 ClassFileStream::get_u4(TRAPS) { if (_need_verify) { guarantee_more(4, CHECK_0); } else { assert(4 <= _buffer_end - _current, "buffer overflow"); } u1* tmp = _current; _current += 4; return Bytes::get_Java_u4(tmp); } u8 ClassFileStream::get_u8(TRAPS) { if (_need_verify) { guarantee_more(8, CHECK_0); } else { assert(8 <= _buffer_end - _current, "buffer overflow"); } u1* tmp = _current; _current += 8; return Bytes::get_Java_u8(tmp); } void ClassFileStream::skip_u1(int length, TRAPS) { if (_need_verify) { guarantee_more(length, CHECK); } _current += length; } void ClassFileStream::skip_u2(int length, TRAPS) { if (_need_verify) { guarantee_more(length * 2, CHECK); } _current += length * 2; } void ClassFileStream::skip_u4(int length, TRAPS) { if (_need_verify) { guarantee_more(length * 4, CHECK); } _current += length * 4; }