Mercurial > hg > truffle
annotate src/share/vm/utilities/constantTag.hpp @ 9597:d5c2b20e9d73
Merge.
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 07 May 2013 01:59:12 +0200 |
parents | f16e75e0cf11 |
children | 28ca974cc21a |
rev | line source |
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0 | 1 /* |
8104 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_UTILITIES_CONSTANTTAG_HPP |
26 #define SHARE_VM_UTILITIES_CONSTANTTAG_HPP | |
27 | |
28 #include "prims/jvm.h" | |
29 #include "utilities/top.hpp" | |
30 | |
0 | 31 // constant tags in Java .class files |
32 | |
33 | |
34 enum { | |
35 // See jvm.h for shared JVM_CONSTANT_XXX tags | |
36 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java | |
37 // Hotspot specific tags | |
38 JVM_CONSTANT_Invalid = 0, // For bad value initialization | |
39 JVM_CONSTANT_InternalMin = 100, // First implementation tag (aside from bad value of course) | |
40 JVM_CONSTANT_UnresolvedClass = 100, // Temporary tag until actual use | |
41 JVM_CONSTANT_ClassIndex = 101, // Temporary tag while constructing constant pool | |
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42 JVM_CONSTANT_StringIndex = 102, // Temporary tag while constructing constant pool |
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43 JVM_CONSTANT_UnresolvedClassInError = 103, // Error tag due to resolution error |
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44 JVM_CONSTANT_MethodHandleInError = 104, // Error tag due to resolution error |
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45 JVM_CONSTANT_MethodTypeInError = 105, // Error tag due to resolution error |
8104 | 46 JVM_CONSTANT_InternalMax = 105 // Last implementation tag |
0 | 47 }; |
48 | |
49 | |
50 class constantTag VALUE_OBJ_CLASS_SPEC { | |
51 private: | |
52 jbyte _tag; | |
53 public: | |
54 bool is_klass() const { return _tag == JVM_CONSTANT_Class; } | |
55 bool is_field () const { return _tag == JVM_CONSTANT_Fieldref; } | |
56 bool is_method() const { return _tag == JVM_CONSTANT_Methodref; } | |
57 bool is_interface_method() const { return _tag == JVM_CONSTANT_InterfaceMethodref; } | |
58 bool is_string() const { return _tag == JVM_CONSTANT_String; } | |
59 bool is_int() const { return _tag == JVM_CONSTANT_Integer; } | |
60 bool is_float() const { return _tag == JVM_CONSTANT_Float; } | |
61 bool is_long() const { return _tag == JVM_CONSTANT_Long; } | |
62 bool is_double() const { return _tag == JVM_CONSTANT_Double; } | |
63 bool is_name_and_type() const { return _tag == JVM_CONSTANT_NameAndType; } | |
64 bool is_utf8() const { return _tag == JVM_CONSTANT_Utf8; } | |
65 | |
66 bool is_invalid() const { return _tag == JVM_CONSTANT_Invalid; } | |
67 | |
68 bool is_unresolved_klass() const { | |
69 return _tag == JVM_CONSTANT_UnresolvedClass || _tag == JVM_CONSTANT_UnresolvedClassInError; | |
70 } | |
71 | |
72 bool is_unresolved_klass_in_error() const { | |
73 return _tag == JVM_CONSTANT_UnresolvedClassInError; | |
74 } | |
75 | |
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76 bool is_method_handle_in_error() const { |
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77 return _tag == JVM_CONSTANT_MethodHandleInError; |
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78 } |
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79 bool is_method_type_in_error() const { |
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80 return _tag == JVM_CONSTANT_MethodTypeInError; |
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81 } |
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82 |
0 | 83 bool is_klass_index() const { return _tag == JVM_CONSTANT_ClassIndex; } |
84 bool is_string_index() const { return _tag == JVM_CONSTANT_StringIndex; } | |
85 | |
86 bool is_klass_reference() const { return is_klass_index() || is_unresolved_klass(); } | |
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87 bool is_klass_or_reference() const{ return is_klass() || is_klass_reference(); } |
0 | 88 bool is_field_or_method() const { return is_field() || is_method() || is_interface_method(); } |
89 bool is_symbol() const { return is_utf8(); } | |
90 | |
1602 | 91 bool is_method_type() const { return _tag == JVM_CONSTANT_MethodType; } |
92 bool is_method_handle() const { return _tag == JVM_CONSTANT_MethodHandle; } | |
2460 | 93 bool is_invoke_dynamic() const { return _tag == JVM_CONSTANT_InvokeDynamic; } |
1602 | 94 |
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95 bool is_loadable_constant() const { |
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96 return ((_tag >= JVM_CONSTANT_Integer && _tag <= JVM_CONSTANT_String) || |
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97 is_method_type() || is_method_handle() || |
8104 | 98 is_unresolved_klass()); |
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99 } |
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100 |
1602 | 101 constantTag() { |
102 _tag = JVM_CONSTANT_Invalid; | |
103 } | |
0 | 104 constantTag(jbyte tag) { |
105 assert((tag >= 0 && tag <= JVM_CONSTANT_NameAndType) || | |
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106 (tag >= JVM_CONSTANT_MethodHandle && tag <= JVM_CONSTANT_InvokeDynamic) || |
0 | 107 (tag >= JVM_CONSTANT_InternalMin && tag <= JVM_CONSTANT_InternalMax), "Invalid constant tag"); |
108 _tag = tag; | |
109 } | |
110 | |
111 jbyte value() { return _tag; } | |
112 | |
1602 | 113 BasicType basic_type() const; // if used with ldc, what kind of value gets pushed? |
114 | |
115 const char* internal_name() const; // for error reporting | |
116 | |
0 | 117 void print_on(outputStream* st) const PRODUCT_RETURN; |
118 }; | |
1972 | 119 |
120 #endif // SHARE_VM_UTILITIES_CONSTANTTAG_HPP |