Mercurial > hg > graal-compiler
diff src/share/vm/ci/ciSignature.cpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/ci/ciSignature.cpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,110 @@ +/* + * Copyright 1999-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +#include "incls/_precompiled.incl" +#include "incls/_ciSignature.cpp.incl" + +// ciSignature +// +// This class represents the signature of a method. + +// ------------------------------------------------------------------ +// ciSignature::ciSignature +ciSignature::ciSignature(ciKlass* accessing_klass, ciSymbol* symbol) { + ASSERT_IN_VM; + EXCEPTION_CONTEXT; + _accessing_klass = accessing_klass; + _symbol = symbol; + + ciEnv* env = CURRENT_ENV; + Arena* arena = env->arena(); + _types = new (arena) GrowableArray<ciType*>(arena, 8, 0, NULL); + + int size = 0; + int count = 0; + symbolHandle sh (THREAD, symbol->get_symbolOop()); + SignatureStream ss(sh); + for (; ; ss.next()) { + // Process one element of the signature + ciType* type; + if (!ss.is_object()) { + type = ciType::make(ss.type()); + } else { + symbolOop name = ss.as_symbol(THREAD); + if (HAS_PENDING_EXCEPTION) { + type = ss.is_array() ? (ciType*)ciEnv::unloaded_ciobjarrayklass() + : (ciType*)ciEnv::unloaded_ciinstance_klass(); + env->record_out_of_memory_failure(); + CLEAR_PENDING_EXCEPTION; + } else { + ciSymbol* klass_name = env->get_object(name)->as_symbol(); + type = env->get_klass_by_name_impl(_accessing_klass, klass_name, false); + } + } + _types->append(type); + if (ss.at_return_type()) { + // Done processing the return type; do not add it into the count. + break; + } + size += type->size(); + count++; + } + _size = size; + _count = count; +} + +// ------------------------------------------------------------------ +// ciSignature::return_ciType +// +// What is the return type of this signature? +ciType* ciSignature::return_type() const { + return _types->at(_count); +} + +// ------------------------------------------------------------------ +// ciSignature::ciType_at +// +// What is the type of the index'th element of this +// signature? +ciType* ciSignature::type_at(int index) const { + assert(index < _count, "out of bounds"); + // The first _klasses element holds the return klass. + return _types->at(index); +} + +// ------------------------------------------------------------------ +// ciSignature::print_signature +void ciSignature::print_signature() { + _symbol->print_symbol(); +} + +// ------------------------------------------------------------------ +// ciSignature::print +void ciSignature::print() { + tty->print("<ciSignature symbol="); + print_signature(); + tty->print(" accessing_klass="); + _accessing_klass->print(); + tty->print(" address=0x%x>", (address)this); +}