93 lines
4.4 KiB
C++
93 lines
4.4 KiB
C++
/*
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* Copyright 1997-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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// A fieldDescriptor describes the attributes of a single field (instance or class variable).
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// It needs the class constant pool to work (because it only holds indices into the pool
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// rather than the actual info).
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class fieldDescriptor VALUE_OBJ_CLASS_SPEC {
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private:
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AccessFlags _access_flags;
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int _name_index;
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int _signature_index;
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int _initial_value_index;
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int _offset;
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int _generic_signature_index;
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int _index; // index into fields() array
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constantPoolHandle _cp;
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public:
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symbolOop name() const { return _cp->symbol_at(_name_index); }
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symbolOop signature() const { return _cp->symbol_at(_signature_index); }
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klassOop field_holder() const { return _cp->pool_holder(); }
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constantPoolOop constants() const { return _cp(); }
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AccessFlags access_flags() const { return _access_flags; }
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oop loader() const;
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// Offset (in words) of field from start of instanceOop / klassOop
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int offset() const { return _offset; }
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symbolOop generic_signature() const { return (_generic_signature_index > 0 ? _cp->symbol_at(_generic_signature_index) : (symbolOop)NULL); }
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int index() const { return _index; }
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typeArrayOop annotations() const;
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// Initial field value
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bool has_initial_value() const { return _initial_value_index != 0; }
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constantTag initial_value_tag() const; // The tag will return true on one of is_int(), is_long(), is_single(), is_double()
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jint int_initial_value() const;
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jlong long_initial_value() const;
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jfloat float_initial_value() const;
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jdouble double_initial_value() const;
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oop string_initial_value(TRAPS) const;
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// Field signature type
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BasicType field_type() const { return FieldType::basic_type(signature()); }
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// Access flags
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bool is_public() const { return _access_flags.is_public(); }
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bool is_private() const { return _access_flags.is_private(); }
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bool is_protected() const { return _access_flags.is_protected(); }
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bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); }
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bool is_static() const { return _access_flags.is_static(); }
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bool is_final() const { return _access_flags.is_final(); }
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bool is_volatile() const { return _access_flags.is_volatile(); }
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bool is_transient() const { return _access_flags.is_transient(); }
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bool is_synthetic() const { return _access_flags.is_synthetic(); }
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bool is_field_access_watched() const { return _access_flags.is_field_access_watched(); }
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bool is_field_modification_watched() const
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{ return _access_flags.is_field_modification_watched(); }
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void set_is_field_access_watched(const bool value)
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{ _access_flags.set_is_field_access_watched(value); }
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void set_is_field_modification_watched(const bool value)
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{ _access_flags.set_is_field_modification_watched(value); }
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// Initialization
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void initialize(klassOop k, int index);
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// Print
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void print_on(outputStream* st) const PRODUCT_RETURN;
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void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN;
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};
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