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1 /* |
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2 * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 #include "incls/_precompiled.incl" |
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26 #include "incls/_ciSignature.cpp.incl" |
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27 |
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28 // ciSignature |
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29 // |
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30 // This class represents the signature of a method. |
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31 |
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32 // ------------------------------------------------------------------ |
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33 // ciSignature::ciSignature |
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34 ciSignature::ciSignature(ciKlass* accessing_klass, ciSymbol* symbol) { |
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35 ASSERT_IN_VM; |
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36 EXCEPTION_CONTEXT; |
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37 _accessing_klass = accessing_klass; |
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38 _symbol = symbol; |
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39 |
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40 ciEnv* env = CURRENT_ENV; |
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41 Arena* arena = env->arena(); |
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42 _types = new (arena) GrowableArray<ciType*>(arena, 8, 0, NULL); |
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43 |
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44 int size = 0; |
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45 int count = 0; |
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46 symbolHandle sh (THREAD, symbol->get_symbolOop()); |
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47 SignatureStream ss(sh); |
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48 for (; ; ss.next()) { |
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49 // Process one element of the signature |
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50 ciType* type; |
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51 if (!ss.is_object()) { |
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52 type = ciType::make(ss.type()); |
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53 } else { |
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54 symbolOop name = ss.as_symbol(THREAD); |
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55 if (HAS_PENDING_EXCEPTION) { |
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56 type = ss.is_array() ? (ciType*)ciEnv::unloaded_ciobjarrayklass() |
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57 : (ciType*)ciEnv::unloaded_ciinstance_klass(); |
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58 env->record_out_of_memory_failure(); |
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59 CLEAR_PENDING_EXCEPTION; |
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60 } else { |
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61 ciSymbol* klass_name = env->get_object(name)->as_symbol(); |
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62 type = env->get_klass_by_name_impl(_accessing_klass, klass_name, false); |
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63 } |
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64 } |
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65 _types->append(type); |
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66 if (ss.at_return_type()) { |
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67 // Done processing the return type; do not add it into the count. |
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68 break; |
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69 } |
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70 size += type->size(); |
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71 count++; |
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72 } |
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73 _size = size; |
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74 _count = count; |
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75 } |
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76 |
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77 // ------------------------------------------------------------------ |
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78 // ciSignature::return_ciType |
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79 // |
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80 // What is the return type of this signature? |
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81 ciType* ciSignature::return_type() const { |
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82 return _types->at(_count); |
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83 } |
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84 |
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85 // ------------------------------------------------------------------ |
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86 // ciSignature::ciType_at |
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87 // |
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88 // What is the type of the index'th element of this |
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89 // signature? |
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90 ciType* ciSignature::type_at(int index) const { |
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91 assert(index < _count, "out of bounds"); |
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92 // The first _klasses element holds the return klass. |
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93 return _types->at(index); |
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94 } |
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95 |
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96 // ------------------------------------------------------------------ |
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97 // ciSignature::print_signature |
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98 void ciSignature::print_signature() { |
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99 _symbol->print_symbol(); |
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100 } |
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101 |
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102 // ------------------------------------------------------------------ |
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103 // ciSignature::print |
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104 void ciSignature::print() { |
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105 tty->print("<ciSignature symbol="); |
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106 print_signature(); |
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107 tty->print(" accessing_klass="); |
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108 _accessing_klass->print(); |
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109 tty->print(" address=0x%x>", (address)this); |
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110 } |