Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/utilities/constantTag.hpp@710a3c8b516e (annotated)
src/share/vm/utilities/constantTag.hpp
Tue, 08 Aug 2017 15:57:29 +0800
- author
- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 5889
- 28ca974cc21a
- parent 0
- f90c822e73f8
- child 10015
- eb7ce841ccec
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_UTILITIES_CONSTANTTAG_HPP |
| aoqi@0 | 26 | #define SHARE_VM_UTILITIES_CONSTANTTAG_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "prims/jvm.h" |
| aoqi@0 | 29 | #include "utilities/top.hpp" |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | // constant tags in Java .class files |
| aoqi@0 | 32 | |
| aoqi@0 | 33 | |
| aoqi@0 | 34 | enum { |
| aoqi@0 | 35 | // See jvm.h for shared JVM_CONSTANT_XXX tags |
| aoqi@0 | 36 | // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java |
| aoqi@0 | 37 | // Hotspot specific tags |
| aoqi@0 | 38 | JVM_CONSTANT_Invalid = 0, // For bad value initialization |
| aoqi@0 | 39 | JVM_CONSTANT_InternalMin = 100, // First implementation tag (aside from bad value of course) |
| aoqi@0 | 40 | JVM_CONSTANT_UnresolvedClass = 100, // Temporary tag until actual use |
| aoqi@0 | 41 | JVM_CONSTANT_ClassIndex = 101, // Temporary tag while constructing constant pool |
| aoqi@0 | 42 | JVM_CONSTANT_StringIndex = 102, // Temporary tag while constructing constant pool |
| aoqi@0 | 43 | JVM_CONSTANT_UnresolvedClassInError = 103, // Error tag due to resolution error |
| aoqi@0 | 44 | JVM_CONSTANT_MethodHandleInError = 104, // Error tag due to resolution error |
| aoqi@0 | 45 | JVM_CONSTANT_MethodTypeInError = 105, // Error tag due to resolution error |
| aoqi@0 | 46 | JVM_CONSTANT_InternalMax = 105 // Last implementation tag |
| aoqi@0 | 47 | }; |
| aoqi@0 | 48 | |
| aoqi@0 | 49 | |
| aoqi@0 | 50 | class constantTag VALUE_OBJ_CLASS_SPEC { |
| aoqi@0 | 51 | private: |
| aoqi@0 | 52 | jbyte _tag; |
| aoqi@0 | 53 | public: |
| aoqi@0 | 54 | bool is_klass() const { return _tag == JVM_CONSTANT_Class; } |
| aoqi@0 | 55 | bool is_field () const { return _tag == JVM_CONSTANT_Fieldref; } |
| aoqi@0 | 56 | bool is_method() const { return _tag == JVM_CONSTANT_Methodref; } |
| aoqi@0 | 57 | bool is_interface_method() const { return _tag == JVM_CONSTANT_InterfaceMethodref; } |
| aoqi@0 | 58 | bool is_string() const { return _tag == JVM_CONSTANT_String; } |
| aoqi@0 | 59 | bool is_int() const { return _tag == JVM_CONSTANT_Integer; } |
| aoqi@0 | 60 | bool is_float() const { return _tag == JVM_CONSTANT_Float; } |
| aoqi@0 | 61 | bool is_long() const { return _tag == JVM_CONSTANT_Long; } |
| aoqi@0 | 62 | bool is_double() const { return _tag == JVM_CONSTANT_Double; } |
| aoqi@0 | 63 | bool is_name_and_type() const { return _tag == JVM_CONSTANT_NameAndType; } |
| aoqi@0 | 64 | bool is_utf8() const { return _tag == JVM_CONSTANT_Utf8; } |
| aoqi@0 | 65 | |
| aoqi@0 | 66 | bool is_invalid() const { return _tag == JVM_CONSTANT_Invalid; } |
| aoqi@0 | 67 | |
| aoqi@0 | 68 | bool is_unresolved_klass() const { |
| aoqi@0 | 69 | return _tag == JVM_CONSTANT_UnresolvedClass || _tag == JVM_CONSTANT_UnresolvedClassInError; |
| aoqi@0 | 70 | } |
| aoqi@0 | 71 | |
| aoqi@0 | 72 | bool is_unresolved_klass_in_error() const { |
| aoqi@0 | 73 | return _tag == JVM_CONSTANT_UnresolvedClassInError; |
| aoqi@0 | 74 | } |
| aoqi@0 | 75 | |
| aoqi@0 | 76 | bool is_method_handle_in_error() const { |
| aoqi@0 | 77 | return _tag == JVM_CONSTANT_MethodHandleInError; |
| aoqi@0 | 78 | } |
| aoqi@0 | 79 | bool is_method_type_in_error() const { |
| aoqi@0 | 80 | return _tag == JVM_CONSTANT_MethodTypeInError; |
| aoqi@0 | 81 | } |
| aoqi@0 | 82 | |
| aoqi@0 | 83 | bool is_klass_index() const { return _tag == JVM_CONSTANT_ClassIndex; } |
| aoqi@0 | 84 | bool is_string_index() const { return _tag == JVM_CONSTANT_StringIndex; } |
| aoqi@0 | 85 | |
| aoqi@0 | 86 | bool is_klass_reference() const { return is_klass_index() || is_unresolved_klass(); } |
| aoqi@0 | 87 | bool is_klass_or_reference() const{ return is_klass() || is_klass_reference(); } |
| aoqi@0 | 88 | bool is_field_or_method() const { return is_field() || is_method() || is_interface_method(); } |
| aoqi@0 | 89 | bool is_symbol() const { return is_utf8(); } |
| aoqi@0 | 90 | |
| aoqi@0 | 91 | bool is_method_type() const { return _tag == JVM_CONSTANT_MethodType; } |
| aoqi@0 | 92 | bool is_method_handle() const { return _tag == JVM_CONSTANT_MethodHandle; } |
| aoqi@0 | 93 | bool is_invoke_dynamic() const { return _tag == JVM_CONSTANT_InvokeDynamic; } |
| aoqi@0 | 94 | |
| aoqi@0 | 95 | bool is_loadable_constant() const { |
| aoqi@0 | 96 | return ((_tag >= JVM_CONSTANT_Integer && _tag <= JVM_CONSTANT_String) || |
| aoqi@0 | 97 | is_method_type() || is_method_handle() || |
| aoqi@0 | 98 | is_unresolved_klass()); |
| aoqi@0 | 99 | } |
| aoqi@0 | 100 | |
| aoqi@0 | 101 | constantTag() { |
| aoqi@0 | 102 | _tag = JVM_CONSTANT_Invalid; |
| aoqi@0 | 103 | } |
| aoqi@0 | 104 | constantTag(jbyte tag) { |
| aoqi@0 | 105 | assert((tag >= 0 && tag <= JVM_CONSTANT_NameAndType) || |
| aoqi@0 | 106 | (tag >= JVM_CONSTANT_MethodHandle && tag <= JVM_CONSTANT_InvokeDynamic) || |
| aoqi@0 | 107 | (tag >= JVM_CONSTANT_InternalMin && tag <= JVM_CONSTANT_InternalMax), "Invalid constant tag"); |
| aoqi@0 | 108 | _tag = tag; |
| aoqi@0 | 109 | } |
| aoqi@0 | 110 | |
| aoqi@0 | 111 | jbyte value() const { return _tag; } |
| aoqi@0 | 112 | jbyte non_error_value() const; |
| aoqi@0 | 113 | |
| aoqi@0 | 114 | BasicType basic_type() const; // if used with ldc, what kind of value gets pushed? |
| aoqi@0 | 115 | |
| aoqi@0 | 116 | const char* internal_name() const; // for error reporting |
| aoqi@0 | 117 | |
| aoqi@0 | 118 | void print_on(outputStream* st) const PRODUCT_RETURN; |
| aoqi@0 | 119 | }; |
| aoqi@0 | 120 | |
| aoqi@0 | 121 | #endif // SHARE_VM_UTILITIES_CONSTANTTAG_HPP |
