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src/share/vm/ci/ciSignature.cpp@1d1603768966 (annotated)

src/share/vm/ci/ciSignature.cpp

Tue, 05 Apr 2011 14:12:31 -0700

author

trims

date

Tue, 05 Apr 2011 14:12:31 -0700

changeset 2708

1d1603768966

parent 2497

3582bf76420e

child 2982

ddd894528dbc

permissions

-rw-r--r--

7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair

duke@435	1	/*
trims@2708	2	* Copyright (c) 1999, 2011, 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
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "ci/ciSignature.hpp"
stefank@2314	27	#include "ci/ciUtilities.hpp"
stefank@2314	28	#include "memory/allocation.inline.hpp"
stefank@2314	29	#include "oops/oop.inline.hpp"
stefank@2314	30	#include "runtime/signature.hpp"
duke@435	31
duke@435	32	// ciSignature
duke@435	33	//
duke@435	34	// This class represents the signature of a method.
duke@435	35
duke@435	36	// ------------------------------------------------------------------
duke@435	37	// ciSignature::ciSignature
duke@435	38	ciSignature::ciSignature(ciKlass* accessing_klass, ciSymbol* symbol) {
duke@435	39	ASSERT_IN_VM;
duke@435	40	EXCEPTION_CONTEXT;
duke@435	41	_accessing_klass = accessing_klass;
duke@435	42	_symbol = symbol;
duke@435	43
duke@435	44	ciEnv* env = CURRENT_ENV;
duke@435	45	Arena* arena = env->arena();
duke@435	46	_types = new (arena) GrowableArray<ciType*>(arena, 8, 0, NULL);
duke@435	47
duke@435	48	int size = 0;
duke@435	49	int count = 0;
coleenp@2497	50	ResourceMark rm(THREAD);
coleenp@2497	51	Symbol* sh = symbol->get_symbol();
duke@435	52	SignatureStream ss(sh);
duke@435	53	for (; ; ss.next()) {
duke@435	54	// Process one element of the signature
duke@435	55	ciType* type;
duke@435	56	if (!ss.is_object()) {
duke@435	57	type = ciType::make(ss.type());
duke@435	58	} else {
coleenp@2497	59	Symbol* name = ss.as_symbol(THREAD);
duke@435	60	if (HAS_PENDING_EXCEPTION) {
duke@435	61	type = ss.is_array() ? (ciType*)ciEnv::unloaded_ciobjarrayklass()
duke@435	62	: (ciType*)ciEnv::unloaded_ciinstance_klass();
duke@435	63	env->record_out_of_memory_failure();
duke@435	64	CLEAR_PENDING_EXCEPTION;
duke@435	65	} else {
coleenp@2497	66	ciSymbol* klass_name = env->get_symbol(name);
duke@435	67	type = env->get_klass_by_name_impl(_accessing_klass, klass_name, false);
duke@435	68	}
duke@435	69	}
duke@435	70	_types->append(type);
duke@435	71	if (ss.at_return_type()) {
duke@435	72	// Done processing the return type; do not add it into the count.
duke@435	73	break;
duke@435	74	}
duke@435	75	size += type->size();
duke@435	76	count++;
duke@435	77	}
duke@435	78	_size = size;
duke@435	79	_count = count;
duke@435	80	}
duke@435	81
duke@435	82	// ------------------------------------------------------------------
duke@435	83	// ciSignature::return_ciType
duke@435	84	//
duke@435	85	// What is the return type of this signature?
duke@435	86	ciType* ciSignature::return_type() const {
duke@435	87	return _types->at(_count);
duke@435	88	}
duke@435	89
duke@435	90	// ------------------------------------------------------------------
duke@435	91	// ciSignature::ciType_at
duke@435	92	//
duke@435	93	// What is the type of the index'th element of this
duke@435	94	// signature?
duke@435	95	ciType* ciSignature::type_at(int index) const {
duke@435	96	assert(index < _count, "out of bounds");
duke@435	97	// The first _klasses element holds the return klass.
duke@435	98	return _types->at(index);
duke@435	99	}
duke@435	100
duke@435	101	// ------------------------------------------------------------------
duke@435	102	// ciSignature::print_signature
duke@435	103	void ciSignature::print_signature() {
duke@435	104	_symbol->print_symbol();
duke@435	105	}
duke@435	106
duke@435	107	// ------------------------------------------------------------------
duke@435	108	// ciSignature::print
duke@435	109	void ciSignature::print() {
duke@435	110	tty->print("<ciSignature symbol=");
duke@435	111	print_signature();
duke@435	112	tty->print(" accessing_klass=");
duke@435	113	_accessing_klass->print();
duke@435	114	tty->print(" address=0x%x>", (address)this);
duke@435	115	}