src/share/vm/ci/ciSignature.cpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 1907
c18cbe5936b8
child 2497
3582bf76420e
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #include "precompiled.hpp"
    26 #include "ci/ciSignature.hpp"
    27 #include "ci/ciUtilities.hpp"
    28 #include "memory/allocation.inline.hpp"
    29 #include "oops/oop.inline.hpp"
    30 #include "runtime/signature.hpp"
    32 // ciSignature
    33 //
    34 // This class represents the signature of a method.
    36 // ------------------------------------------------------------------
    37 // ciSignature::ciSignature
    38 ciSignature::ciSignature(ciKlass* accessing_klass, ciSymbol* symbol) {
    39   ASSERT_IN_VM;
    40   EXCEPTION_CONTEXT;
    41   _accessing_klass = accessing_klass;
    42   _symbol = symbol;
    44   ciEnv* env = CURRENT_ENV;
    45   Arena* arena = env->arena();
    46   _types = new (arena) GrowableArray<ciType*>(arena, 8, 0, NULL);
    48   int size = 0;
    49   int count = 0;
    50   symbolHandle sh (THREAD, symbol->get_symbolOop());
    51   SignatureStream ss(sh);
    52   for (; ; ss.next()) {
    53     // Process one element of the signature
    54     ciType* type;
    55     if (!ss.is_object()) {
    56       type = ciType::make(ss.type());
    57     } else {
    58       symbolOop name = ss.as_symbol(THREAD);
    59       if (HAS_PENDING_EXCEPTION) {
    60         type = ss.is_array() ? (ciType*)ciEnv::unloaded_ciobjarrayklass()
    61           : (ciType*)ciEnv::unloaded_ciinstance_klass();
    62         env->record_out_of_memory_failure();
    63         CLEAR_PENDING_EXCEPTION;
    64       } else {
    65         ciSymbol* klass_name = env->get_object(name)->as_symbol();
    66         type = env->get_klass_by_name_impl(_accessing_klass, klass_name, false);
    67       }
    68     }
    69     _types->append(type);
    70     if (ss.at_return_type()) {
    71       // Done processing the return type; do not add it into the count.
    72       break;
    73     }
    74     size += type->size();
    75     count++;
    76   }
    77   _size = size;
    78   _count = count;
    79 }
    81 // ------------------------------------------------------------------
    82 // ciSignature::return_ciType
    83 //
    84 // What is the return type of this signature?
    85 ciType* ciSignature::return_type() const {
    86   return _types->at(_count);
    87 }
    89 // ------------------------------------------------------------------
    90 // ciSignature::ciType_at
    91 //
    92 // What is the type of the index'th element of this
    93 // signature?
    94 ciType* ciSignature::type_at(int index) const {
    95   assert(index < _count, "out of bounds");
    96   // The first _klasses element holds the return klass.
    97   return _types->at(index);
    98 }
   100 // ------------------------------------------------------------------
   101 // ciSignature::print_signature
   102 void ciSignature::print_signature() {
   103   _symbol->print_symbol();
   104 }
   106 // ------------------------------------------------------------------
   107 // ciSignature::print
   108 void ciSignature::print() {
   109   tty->print("<ciSignature symbol=");
   110   print_signature();
   111  tty->print(" accessing_klass=");
   112   _accessing_klass->print();
   113   tty->print(" address=0x%x>", (address)this);
   114 }

mercurial