Quellcode-Bibliothek

^© Kompilation durch diese Firma

[Weder Korrektheit noch Funktionsfähigkeit der Software werden zugesichert.]

Datei: ciSymbol.hpp Sprache: C

/*
* Copyright (c) 1999, 2022, 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_CI_CISYMBOL_HPP
#define SHARE_CI_CISYMBOL_HPP

#include "ci/ciBaseObject.hpp"
#include "ci/ciObject.hpp"
#include "oops/symbol.hpp"
#include "utilities/vmEnums.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 ciField;
  friend class ciObjArrayKlass;

private:
  const vmSymbolID _sid;

  ciSymbol(Symbol* s, vmSymbolID sid);

  DEBUG_ONLY(bool sid_ok();)

  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 u1* base();

  // Make a ciSymbol from a C string (implementation).
  static ciSymbol* make_impl(const char* s);

public:
  // The enumeration ID from vmSymbols, or vmSymbolID::NO_SID if none.
  vmSymbolID 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 utf byte as a char, where i < utf8_length
  char        char_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);
  }
  const char* as_klass_external_name() const;

  // 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);

  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;

  Symbol* get_symbol() const { return _symbol; }

};

#endif // SHARE_CI_CISYMBOL_HPP

¤ Dauer der Verarbeitung: 0.17 Sekunden (vorverarbeitet) ¤

Download des Quellennavigators
Download des sprechenden Kalenders
in der Quellcodebibliothek suchen

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.