aoqi@0: /*
aoqi@0:  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "ci/ciSymbol.hpp"
aoqi@0: #include "ci/ciUtilities.hpp"
aoqi@0: #include "memory/oopFactory.hpp"
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::ciSymbol
aoqi@0: //
aoqi@0: // Preallocated symbol variant.  Used with symbols from vmSymbols.
aoqi@0: ciSymbol::ciSymbol(Symbol* s, vmSymbols::SID sid)
aoqi@0:   : _symbol(s), _sid(sid)
aoqi@0: {
aoqi@0:   assert(_symbol != NULL, "adding null symbol");
aoqi@0:   _symbol->increment_refcount();  // increment ref count
aoqi@0:   assert(sid_ok(), "must be in vmSymbols");
aoqi@0: }
aoqi@0: 
aoqi@0: // Normal case for non-famous symbols.
aoqi@0: ciSymbol::ciSymbol(Symbol* s)
aoqi@0:   : _symbol(s), _sid(vmSymbols::NO_SID)
aoqi@0: {
aoqi@0:   assert(_symbol != NULL, "adding null symbol");
aoqi@0:   _symbol->increment_refcount();  // increment ref count
aoqi@0:   assert(sid_ok(), "must not be in vmSymbols");
aoqi@0: }
aoqi@0: 
aoqi@0: // ciSymbol
aoqi@0: //
aoqi@0: // This class represents a Symbol* in the HotSpot virtual
aoqi@0: // machine.
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::as_utf8
aoqi@0: //
aoqi@0: // The text of the symbol as a null-terminated C string.
aoqi@0: const char* ciSymbol::as_utf8() {
aoqi@0:   VM_QUICK_ENTRY_MARK;
aoqi@0:   Symbol* s = get_symbol();
aoqi@0:   return s->as_utf8();
aoqi@0: }
aoqi@0: 
aoqi@0: // The text of the symbol as a null-terminated C string.
aoqi@0: const char* ciSymbol::as_quoted_ascii() {
aoqi@0:   GUARDED_VM_QUICK_ENTRY(return get_symbol()->as_quoted_ascii();)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::base
aoqi@0: const jbyte* ciSymbol::base() {
aoqi@0:   GUARDED_VM_ENTRY(return get_symbol()->base();)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::byte_at
aoqi@0: int ciSymbol::byte_at(int i) {
aoqi@0:   GUARDED_VM_ENTRY(return get_symbol()->byte_at(i);)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::starts_with
aoqi@0: //
aoqi@0: // Tests if the symbol starts with the given prefix.
aoqi@0: bool ciSymbol::starts_with(const char* prefix, int len) const {
aoqi@0:   GUARDED_VM_ENTRY(return get_symbol()->starts_with(prefix, len);)
aoqi@0: }
aoqi@0: 
aoqi@0: bool ciSymbol::is_signature_polymorphic_name()  const {
aoqi@0:   GUARDED_VM_ENTRY(return MethodHandles::is_signature_polymorphic_name(get_symbol());)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::index_of
aoqi@0: //
aoqi@0: // Determines where the symbol contains the given substring.
aoqi@0: int ciSymbol::index_of_at(int i, const char* str, int len) const {
aoqi@0:   GUARDED_VM_ENTRY(return get_symbol()->index_of_at(i, str, len);)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::utf8_length
aoqi@0: int ciSymbol::utf8_length() {
aoqi@0:   GUARDED_VM_ENTRY(return get_symbol()->utf8_length();)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::print_impl
aoqi@0: //
aoqi@0: // Implementation of the print method
aoqi@0: void ciSymbol::print_impl(outputStream* st) {
aoqi@0:   st->print(" value=");
aoqi@0:   print_symbol_on(st);
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::print_symbol_on
aoqi@0: //
aoqi@0: // Print the value of this symbol on an outputStream
aoqi@0: void ciSymbol::print_symbol_on(outputStream *st) {
aoqi@0:   GUARDED_VM_ENTRY(get_symbol()->print_symbol_on(st);)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::make_impl
aoqi@0: //
aoqi@0: // Make a ciSymbol from a C string (implementation).
aoqi@0: ciSymbol* ciSymbol::make_impl(const char* s) {
aoqi@0:   EXCEPTION_CONTEXT;
aoqi@0:   TempNewSymbol sym = SymbolTable::new_symbol(s, THREAD);
aoqi@0:   if (HAS_PENDING_EXCEPTION) {
aoqi@0:     CLEAR_PENDING_EXCEPTION;
aoqi@0:     CURRENT_THREAD_ENV->record_out_of_memory_failure();
aoqi@0:     return ciEnv::_unloaded_cisymbol;
aoqi@0:   }
aoqi@0:   return CURRENT_THREAD_ENV->get_symbol(sym);
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciSymbol::make
aoqi@0: //
aoqi@0: // Make a ciSymbol from a C string.
aoqi@0: ciSymbol* ciSymbol::make(const char* s) {
aoqi@0:   GUARDED_VM_ENTRY(return make_impl(s);)
aoqi@0: }