duke@435: /*
duke@435:  * Copyright 1999-2007 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: #include "incls/_precompiled.incl"
duke@435: #include "incls/_ciSignature.cpp.incl"
duke@435: 
duke@435: // ciSignature
duke@435: //
duke@435: // This class represents the signature of a method.
duke@435: 
duke@435: // ------------------------------------------------------------------
duke@435: // ciSignature::ciSignature
duke@435: ciSignature::ciSignature(ciKlass* accessing_klass, ciSymbol* symbol) {
duke@435:   ASSERT_IN_VM;
duke@435:   EXCEPTION_CONTEXT;
duke@435:   _accessing_klass = accessing_klass;
duke@435:   _symbol = symbol;
duke@435: 
duke@435:   ciEnv* env = CURRENT_ENV;
duke@435:   Arena* arena = env->arena();
duke@435:   _types = new (arena) GrowableArray<ciType*>(arena, 8, 0, NULL);
duke@435: 
duke@435:   int size = 0;
duke@435:   int count = 0;
duke@435:   symbolHandle sh (THREAD, symbol->get_symbolOop());
duke@435:   SignatureStream ss(sh);
duke@435:   for (; ; ss.next()) {
duke@435:     // Process one element of the signature
duke@435:     ciType* type;
duke@435:     if (!ss.is_object()) {
duke@435:       type = ciType::make(ss.type());
duke@435:     } else {
duke@435:       symbolOop name = ss.as_symbol(THREAD);
duke@435:       if (HAS_PENDING_EXCEPTION) {
duke@435:         type = ss.is_array() ? (ciType*)ciEnv::unloaded_ciobjarrayklass()
duke@435:           : (ciType*)ciEnv::unloaded_ciinstance_klass();
duke@435:         env->record_out_of_memory_failure();
duke@435:         CLEAR_PENDING_EXCEPTION;
duke@435:       } else {
duke@435:         ciSymbol* klass_name = env->get_object(name)->as_symbol();
duke@435:         type = env->get_klass_by_name_impl(_accessing_klass, klass_name, false);
duke@435:       }
duke@435:     }
duke@435:     _types->append(type);
duke@435:     if (ss.at_return_type()) {
duke@435:       // Done processing the return type; do not add it into the count.
duke@435:       break;
duke@435:     }
duke@435:     size += type->size();
duke@435:     count++;
duke@435:   }
duke@435:   _size = size;
duke@435:   _count = count;
duke@435: }
duke@435: 
duke@435: // ------------------------------------------------------------------
duke@435: // ciSignature::return_ciType
duke@435: //
duke@435: // What is the return type of this signature?
duke@435: ciType* ciSignature::return_type() const {
duke@435:   return _types->at(_count);
duke@435: }
duke@435: 
duke@435: // ------------------------------------------------------------------
duke@435: // ciSignature::ciType_at
duke@435: //
duke@435: // What is the type of the index'th element of this
duke@435: // signature?
duke@435: ciType* ciSignature::type_at(int index) const {
duke@435:   assert(index < _count, "out of bounds");
duke@435:   // The first _klasses element holds the return klass.
duke@435:   return _types->at(index);
duke@435: }
duke@435: 
duke@435: // ------------------------------------------------------------------
duke@435: // ciSignature::print_signature
duke@435: void ciSignature::print_signature() {
duke@435:   _symbol->print_symbol();
duke@435: }
duke@435: 
duke@435: // ------------------------------------------------------------------
duke@435: // ciSignature::print
duke@435: void ciSignature::print() {
duke@435:   tty->print("<ciSignature symbol=");
duke@435:   print_signature();
duke@435:  tty->print(" accessing_klass=");
duke@435:   _accessing_klass->print();
duke@435:   tty->print(" address=0x%x>", (address)this);
duke@435: }