1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/ci/ciSignature.cpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,110 @@
1.4 +/*
1.5 + * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include "incls/_precompiled.incl"
1.29 +#include "incls/_ciSignature.cpp.incl"
1.30 +
1.31 +// ciSignature
1.32 +//
1.33 +// This class represents the signature of a method.
1.34 +
1.35 +// ------------------------------------------------------------------
1.36 +// ciSignature::ciSignature
1.37 +ciSignature::ciSignature(ciKlass* accessing_klass, ciSymbol* symbol) {
1.38 + ASSERT_IN_VM;
1.39 + EXCEPTION_CONTEXT;
1.40 + _accessing_klass = accessing_klass;
1.41 + _symbol = symbol;
1.42 +
1.43 + ciEnv* env = CURRENT_ENV;
1.44 + Arena* arena = env->arena();
1.45 + _types = new (arena) GrowableArray<ciType*>(arena, 8, 0, NULL);
1.46 +
1.47 + int size = 0;
1.48 + int count = 0;
1.49 + symbolHandle sh (THREAD, symbol->get_symbolOop());
1.50 + SignatureStream ss(sh);
1.51 + for (; ; ss.next()) {
1.52 + // Process one element of the signature
1.53 + ciType* type;
1.54 + if (!ss.is_object()) {
1.55 + type = ciType::make(ss.type());
1.56 + } else {
1.57 + symbolOop name = ss.as_symbol(THREAD);
1.58 + if (HAS_PENDING_EXCEPTION) {
1.59 + type = ss.is_array() ? (ciType*)ciEnv::unloaded_ciobjarrayklass()
1.60 + : (ciType*)ciEnv::unloaded_ciinstance_klass();
1.61 + env->record_out_of_memory_failure();
1.62 + CLEAR_PENDING_EXCEPTION;
1.63 + } else {
1.64 + ciSymbol* klass_name = env->get_object(name)->as_symbol();
1.65 + type = env->get_klass_by_name_impl(_accessing_klass, klass_name, false);
1.66 + }
1.67 + }
1.68 + _types->append(type);
1.69 + if (ss.at_return_type()) {
1.70 + // Done processing the return type; do not add it into the count.
1.71 + break;
1.72 + }
1.73 + size += type->size();
1.74 + count++;
1.75 + }
1.76 + _size = size;
1.77 + _count = count;
1.78 +}
1.79 +
1.80 +// ------------------------------------------------------------------
1.81 +// ciSignature::return_ciType
1.82 +//
1.83 +// What is the return type of this signature?
1.84 +ciType* ciSignature::return_type() const {
1.85 + return _types->at(_count);
1.86 +}
1.87 +
1.88 +// ------------------------------------------------------------------
1.89 +// ciSignature::ciType_at
1.90 +//
1.91 +// What is the type of the index'th element of this
1.92 +// signature?
1.93 +ciType* ciSignature::type_at(int index) const {
1.94 + assert(index < _count, "out of bounds");
1.95 + // The first _klasses element holds the return klass.
1.96 + return _types->at(index);
1.97 +}
1.98 +
1.99 +// ------------------------------------------------------------------
1.100 +// ciSignature::print_signature
1.101 +void ciSignature::print_signature() {
1.102 + _symbol->print_symbol();
1.103 +}
1.104 +
1.105 +// ------------------------------------------------------------------
1.106 +// ciSignature::print
1.107 +void ciSignature::print() {
1.108 + tty->print("<ciSignature symbol=");
1.109 + print_signature();
1.110 + tty->print(" accessing_klass=");
1.111 + _accessing_klass->print();
1.112 + tty->print(" address=0x%x>", (address)this);
1.113 +}
