Mercurial > hg > truffle
view src/share/vm/ci/ciSymbol.hpp @ 11249:7b416466e269
made VM_ERROR foreign call a leaf
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 07 Aug 2013 16:44:54 +0200 |
parents | b8f261ba79c6 |
children | cefad50507d8 |
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/* * Copyright (c) 1999, 2012, 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. * */ #ifndef SHARE_VM_CI_CISYMBOL_HPP #define SHARE_VM_CI_CISYMBOL_HPP #include "ci/ciBaseObject.hpp" #include "ci/ciObject.hpp" #include "ci/ciObjectFactory.hpp" #include "classfile/vmSymbols.hpp" #include "oops/symbol.hpp" // ciSymbol // // This class represents a Symbol* in the HotSpot virtual // machine. class ciSymbol : public ciBaseObject { Symbol* _symbol; CI_PACKAGE_ACCESS // These friends all make direct use of get_symbol: friend class ciEnv; friend class ciInstanceKlass; friend class ciSignature; friend class ciMethod; friend class ciObjArrayKlass; private: const vmSymbols::SID _sid; DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbol()) == _sid; } ) ciSymbol(Symbol* s); // normal case, for symbols not mentioned in vmSymbols ciSymbol(Symbol* s, vmSymbols::SID sid); // for use with vmSymbols Symbol* get_symbol() const { return _symbol; } const char* type_string() { return "ciSymbol"; } void print_impl(outputStream* st); // This is public in Symbol* but private here, because the base can move: const jbyte* base(); // Make a ciSymbol from a C string (implementation). static ciSymbol* make_impl(const char* s); public: // The enumeration ID from vmSymbols, or vmSymbols::NO_SID if none. vmSymbols::SID sid() const { return _sid; } // The text of the symbol as a null-terminated utf8 string. const char* as_utf8(); int utf8_length(); // The text of the symbol as ascii with all non-printable characters quoted as \u#### const char* as_quoted_ascii(); // Return the i-th utf8 byte, where i < utf8_length int byte_at(int i); // Tests if the symbol starts with the given prefix. bool starts_with(const char* prefix, int len) const; // Determines where the symbol contains the given substring. int index_of_at(int i, const char* str, int len) const; void print_symbol_on(outputStream* st); void print_symbol() { print_symbol_on(tty); } // Make a ciSymbol from a C string. // Consider adding to vmSymbols.hpp instead of using this constructor. // (Your code will be less subject to typographical bugs.) static ciSymbol* make(const char* s); #define CI_SYMBOL_DECLARE(name, ignore_def) \ static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); } VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE) #undef CI_SYMBOL_DECLARE void print() { _symbol->print(); } virtual bool is_symbol() const { return true; } // Are two ciSymbols equal? bool equals(ciSymbol* obj) { return this->_symbol == obj->get_symbol(); } bool is_signature_polymorphic_name() const; }; #endif // SHARE_VM_CI_CISYMBOL_HPP