Mercurial > hg > graal-compiler
view src/share/vm/ci/ciSymbol.cpp @ 2501:6594e6d8bfe7
Rebranding to com.oracle.graal
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 26 Apr 2011 21:10:53 +0200 |
parents | 1d1603768966 |
children | 1d7922586cf6 |
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/* * Copyright (c) 1999, 2011, 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 "ci/ciSymbol.hpp" #include "ci/ciUtilities.hpp" #include "memory/oopFactory.hpp" // ------------------------------------------------------------------ // ciSymbol::ciSymbol // // Preallocated symbol variant. Used with symbols from vmSymbols. ciSymbol::ciSymbol(Symbol* s, vmSymbols::SID sid) : _symbol(s), _sid(sid) { assert(_symbol != NULL, "adding null symbol"); _symbol->increment_refcount(); // increment ref count assert(sid_ok(), "must be in vmSymbols"); } // Normal case for non-famous symbols. ciSymbol::ciSymbol(Symbol* s) : _symbol(s), _sid(vmSymbols::NO_SID) { assert(_symbol != NULL, "adding null symbol"); _symbol->increment_refcount(); // increment ref count assert(sid_ok(), "must not be in vmSymbols"); } // ciSymbol // // This class represents a Symbol* in the HotSpot virtual // machine. // ------------------------------------------------------------------ // ciSymbol::as_utf8 // // The text of the symbol as a null-terminated C string. const char* ciSymbol::as_utf8() { VM_QUICK_ENTRY_MARK; Symbol* s = get_symbol(); return s->as_utf8(); } // ------------------------------------------------------------------ // ciSymbol::base const jbyte* ciSymbol::base() { GUARDED_VM_ENTRY(return get_symbol()->base();) } // ------------------------------------------------------------------ // ciSymbol::byte_at int ciSymbol::byte_at(int i) { GUARDED_VM_ENTRY(return get_symbol()->byte_at(i);) } // ------------------------------------------------------------------ // ciSymbol::starts_with // // Tests if the symbol starts with the given prefix. bool ciSymbol::starts_with(const char* prefix, int len) const { GUARDED_VM_ENTRY(return get_symbol()->starts_with(prefix, len);) } // ------------------------------------------------------------------ // ciSymbol::index_of // // Determines where the symbol contains the given substring. int ciSymbol::index_of_at(int i, const char* str, int len) const { GUARDED_VM_ENTRY(return get_symbol()->index_of_at(i, str, len);) } // ------------------------------------------------------------------ // ciSymbol::utf8_length int ciSymbol::utf8_length() { GUARDED_VM_ENTRY(return get_symbol()->utf8_length();) } // ------------------------------------------------------------------ // ciSymbol::print_impl // // Implementation of the print method void ciSymbol::print_impl(outputStream* st) { st->print(" value="); print_symbol_on(st); } // ------------------------------------------------------------------ // ciSymbol::print_symbol_on // // Print the value of this symbol on an outputStream void ciSymbol::print_symbol_on(outputStream *st) { GUARDED_VM_ENTRY(get_symbol()->print_symbol_on(st);) } // ------------------------------------------------------------------ // ciSymbol::make_impl // // Make a ciSymbol from a C string (implementation). ciSymbol* ciSymbol::make_impl(const char* s) { EXCEPTION_CONTEXT; TempNewSymbol sym = SymbolTable::new_symbol(s, THREAD); if (HAS_PENDING_EXCEPTION) { CLEAR_PENDING_EXCEPTION; CURRENT_THREAD_ENV->record_out_of_memory_failure(); return ciEnv::_unloaded_cisymbol; } return CURRENT_THREAD_ENV->get_symbol(sym); } // ------------------------------------------------------------------ // ciSymbol::make // // Make a ciSymbol from a C string. ciSymbol* ciSymbol::make(const char* s) { GUARDED_VM_ENTRY(return make_impl(s);) }