hotspot/src/share/vm/ci/ciSymbol.hpp
author roland
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8005079: fix LogCompilation for incremental inlining Summary: report late inlining as part of the rest of the inlining output Reviewed-by: twisti, kvn
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/*
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 * Copyright (c) 1999, 2013, 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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#ifndef SHARE_VM_CI_CISYMBOL_HPP
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#define SHARE_VM_CI_CISYMBOL_HPP
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#include "ci/ciBaseObject.hpp"
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#include "ci/ciObject.hpp"
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#include "ci/ciObjectFactory.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "oops/symbol.hpp"
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// ciSymbol
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//
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// This class represents a Symbol* in the HotSpot virtual
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// machine.
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class ciSymbol : public ciBaseObject {
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  Symbol* _symbol;
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  CI_PACKAGE_ACCESS
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  // These friends all make direct use of get_symbol:
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  friend class ciEnv;
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  friend class ciInstanceKlass;
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  friend class ciSignature;
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  friend class ciMethod;
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  friend class ciField;
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  friend class ciObjArrayKlass;
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private:
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  const vmSymbols::SID _sid;
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  DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbol()) == _sid; } )
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  ciSymbol(Symbol* s);  // normal case, for symbols not mentioned in vmSymbols
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  ciSymbol(Symbol* s, vmSymbols::SID sid);   // for use with vmSymbols
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  Symbol* get_symbol() const { return _symbol; }
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  const char* type_string() { return "ciSymbol"; }
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  void print_impl(outputStream* st);
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  // This is public in Symbol* but private here, because the base can move:
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  const jbyte* base();
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  // Make a ciSymbol from a C string (implementation).
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  static ciSymbol* make_impl(const char* s);
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public:
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  // The enumeration ID from vmSymbols, or vmSymbols::NO_SID if none.
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  vmSymbols::SID sid() const { return _sid; }
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  // The text of the symbol as a null-terminated utf8 string.
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  const char* as_utf8();
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  int         utf8_length();
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  // The text of the symbol as ascii with all non-printable characters quoted as \u####
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  const char* as_quoted_ascii();
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  // Return the i-th utf8 byte, where i < utf8_length
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  int         byte_at(int i);
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  // Tests if the symbol starts with the given prefix.
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  bool starts_with(const char* prefix, int len) const;
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  // Determines where the symbol contains the given substring.
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  int index_of_at(int i, const char* str, int len) const;
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  void print_symbol_on(outputStream* st);
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  void print_symbol() {
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    print_symbol_on(tty);
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  }
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  const char* as_klass_external_name() const;
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  // Make a ciSymbol from a C string.
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  // Consider adding to vmSymbols.hpp instead of using this constructor.
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  // (Your code will be less subject to typographical bugs.)
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  static ciSymbol* make(const char* s);
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#define CI_SYMBOL_DECLARE(name, ignore_def) \
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  static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }
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  VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)
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#undef CI_SYMBOL_DECLARE
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  void print() {
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    _symbol->print();
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  }
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  virtual bool is_symbol() const       { return true; }
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  // Are two ciSymbols equal?
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  bool equals(ciSymbol* obj) { return this->_symbol == obj->get_symbol(); }
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  bool is_signature_polymorphic_name() const;
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};
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#endif // SHARE_VM_CI_CISYMBOL_HPP