• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/ci/ciSymbol.hpp@c18cbe5936b8 (annotated)

src/share/vm/ci/ciSymbol.hpp

Thu, 27 May 2010 19:08:38 -0700

author

trims

date

Thu, 27 May 2010 19:08:38 -0700

changeset 1907

c18cbe5936b8

parent 1862

cd5dbf694d45

child 2314

f95d63e2154a

permissions

-rw-r--r--

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

duke@435	1	/*
trims@1907	2	* Copyright (c) 1999, 2009, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// ciSymbol
duke@435	26	//
duke@435	27	// This class represents a symbolOop in the HotSpot virtual
duke@435	28	// machine.
duke@435	29	class ciSymbol : public ciObject {
duke@435	30	CI_PACKAGE_ACCESS
twisti@1573	31	// These friends all make direct use of get_symbolOop:
duke@435	32	friend class ciEnv;
duke@435	33	friend class ciInstanceKlass;
duke@435	34	friend class ciSignature;
duke@435	35	friend class ciMethod;
duke@435	36	friend class ciObjArrayKlass;
duke@435	37
duke@435	38	private:
jrose@1862	39	const vmSymbols::SID _sid;
jrose@1862	40	DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbolOop()) == _sid; } )
jrose@1862	41
jrose@1862	42	ciSymbol(symbolOop s); // normal case, for symbols not mentioned in vmSymbols
jrose@1862	43	ciSymbol(symbolHandle s, vmSymbols::SID sid); // for use with vmSymbolHandles
duke@435	44
twisti@1573	45	symbolOop get_symbolOop() const { return (symbolOop)get_oop(); }
duke@435	46
duke@435	47	const char* type_string() { return "ciSymbol"; }
duke@435	48
duke@435	49	void print_impl(outputStream* st);
duke@435	50
twisti@1573	51	// This is public in symbolOop but private here, because the base can move:
duke@435	52	jbyte* base();
duke@435	53
duke@435	54	// Make a ciSymbol from a C string (implementation).
duke@435	55	static ciSymbol* make_impl(const char* s);
duke@435	56
duke@435	57	public:
jrose@1862	58	// The enumeration ID from vmSymbols, or vmSymbols::NO_SID if none.
jrose@1862	59	vmSymbols::SID sid() const { return _sid; }
jrose@1862	60
duke@435	61	// The text of the symbol as a null-terminated utf8 string.
duke@435	62	const char* as_utf8();
duke@435	63	int utf8_length();
duke@435	64
twisti@1573	65	// Return the i-th utf8 byte, where i < utf8_length
twisti@1573	66	int byte_at(int i);
twisti@1573	67
twisti@1573	68	// Tests if the symbol starts with the given prefix.
twisti@1573	69	bool starts_with(const char* prefix, int len) const;
twisti@1573	70
twisti@1573	71	// Determines where the symbol contains the given substring.
twisti@1573	72	int index_of_at(int i, const char* str, int len) const;
twisti@1573	73
duke@435	74	// What kind of ciObject is this?
duke@435	75	bool is_symbol() { return true; }
duke@435	76
duke@435	77	void print_symbol_on(outputStream* st);
duke@435	78	void print_symbol() {
duke@435	79	print_symbol_on(tty);
duke@435	80	}
duke@435	81
duke@435	82	// Make a ciSymbol from a C string.
duke@435	83	// Consider adding to vmSymbols.hpp instead of using this constructor.
duke@435	84	// (Your code will be less subject to typographical bugs.)
duke@435	85	static ciSymbol* make(const char* s);
duke@435	86
duke@435	87	#define CI_SYMBOL_DECLARE(name, ignore_def) \
duke@435	88	static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }
duke@435	89	VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)
duke@435	90	#undef CI_SYMBOL_DECLARE
duke@435	91	};