author | jrose |
Wed, 09 Jun 2010 18:50:45 -0700 | |
changeset 5882 | 6b2aecc4f7d8 |
parent 5547 | f4b087cbb361 |
child 6062 | bab93afe9df7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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// constant tags in Java .class files |
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enum { |
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// See jvm.h for shared JVM_CONSTANT_XXX tags |
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// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java |
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// Hotspot specific tags |
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JVM_CONSTANT_Invalid = 0, // For bad value initialization |
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JVM_CONSTANT_InternalMin = 100, // First implementation tag (aside from bad value of course) |
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JVM_CONSTANT_UnresolvedClass = 100, // Temporary tag until actual use |
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JVM_CONSTANT_ClassIndex = 101, // Temporary tag while constructing constant pool |
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JVM_CONSTANT_UnresolvedString = 102, // Temporary tag until actual use |
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JVM_CONSTANT_StringIndex = 103, // Temporary tag while constructing constant pool |
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JVM_CONSTANT_UnresolvedClassInError = 104, // Error tag due to resolution error |
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JVM_CONSTANT_Object = 105, // Required for BoundMethodHandle arguments. |
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JVM_CONSTANT_InternalMax = 105 // Last implementation tag |
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}; |
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class constantTag VALUE_OBJ_CLASS_SPEC { |
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private: |
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jbyte _tag; |
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public: |
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bool is_klass() const { return _tag == JVM_CONSTANT_Class; } |
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bool is_field () const { return _tag == JVM_CONSTANT_Fieldref; } |
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bool is_method() const { return _tag == JVM_CONSTANT_Methodref; } |
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bool is_interface_method() const { return _tag == JVM_CONSTANT_InterfaceMethodref; } |
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bool is_string() const { return _tag == JVM_CONSTANT_String; } |
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bool is_int() const { return _tag == JVM_CONSTANT_Integer; } |
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bool is_float() const { return _tag == JVM_CONSTANT_Float; } |
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bool is_long() const { return _tag == JVM_CONSTANT_Long; } |
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bool is_double() const { return _tag == JVM_CONSTANT_Double; } |
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bool is_name_and_type() const { return _tag == JVM_CONSTANT_NameAndType; } |
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bool is_utf8() const { return _tag == JVM_CONSTANT_Utf8; } |
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bool is_invalid() const { return _tag == JVM_CONSTANT_Invalid; } |
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bool is_unresolved_klass() const { |
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return _tag == JVM_CONSTANT_UnresolvedClass || _tag == JVM_CONSTANT_UnresolvedClassInError; |
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} |
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bool is_unresolved_klass_in_error() const { |
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return _tag == JVM_CONSTANT_UnresolvedClassInError; |
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} |
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bool is_klass_index() const { return _tag == JVM_CONSTANT_ClassIndex; } |
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bool is_unresolved_string() const { return _tag == JVM_CONSTANT_UnresolvedString; } |
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bool is_string_index() const { return _tag == JVM_CONSTANT_StringIndex; } |
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bool is_object() const { return _tag == JVM_CONSTANT_Object; } |
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bool is_klass_reference() const { return is_klass_index() || is_unresolved_klass(); } |
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bool is_klass_or_reference() const{ return is_klass() || is_klass_reference(); } |
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bool is_field_or_method() const { return is_field() || is_method() || is_interface_method(); } |
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bool is_symbol() const { return is_utf8(); } |
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bool is_method_type() const { return _tag == JVM_CONSTANT_MethodType; } |
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bool is_method_handle() const { return _tag == JVM_CONSTANT_MethodHandle; } |
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constantTag() { |
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_tag = JVM_CONSTANT_Invalid; |
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} |
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constantTag(jbyte tag) { |
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assert((tag >= 0 && tag <= JVM_CONSTANT_NameAndType) || |
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(tag >= JVM_CONSTANT_MethodHandle && tag <= JVM_CONSTANT_MethodType) || |
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(tag >= JVM_CONSTANT_InternalMin && tag <= JVM_CONSTANT_InternalMax), "Invalid constant tag"); |
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_tag = tag; |
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} |
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jbyte value() { return _tag; } |
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BasicType basic_type() const; // if used with ldc, what kind of value gets pushed? |
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const char* internal_name() const; // for error reporting |
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void print_on(outputStream* st) const PRODUCT_RETURN; |
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}; |