--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/runtime/fieldDescriptor.hpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,92 @@
+/*
+ * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// A fieldDescriptor describes the attributes of a single field (instance or class variable).
+// It needs the class constant pool to work (because it only holds indices into the pool
+// rather than the actual info).
+
+class fieldDescriptor VALUE_OBJ_CLASS_SPEC {
+ private:
+ AccessFlags _access_flags;
+ int _name_index;
+ int _signature_index;
+ int _initial_value_index;
+ int _offset;
+ int _generic_signature_index;
+ int _index; // index into fields() array
+ constantPoolHandle _cp;
+
+ public:
+ symbolOop name() const { return _cp->symbol_at(_name_index); }
+ symbolOop signature() const { return _cp->symbol_at(_signature_index); }
+ klassOop field_holder() const { return _cp->pool_holder(); }
+ constantPoolOop constants() const { return _cp(); }
+ AccessFlags access_flags() const { return _access_flags; }
+ oop loader() const;
+ // Offset (in words) of field from start of instanceOop / klassOop
+ int offset() const { return _offset; }
+ symbolOop generic_signature() const { return (_generic_signature_index > 0 ? _cp->symbol_at(_generic_signature_index) : (symbolOop)NULL); }
+ int index() const { return _index; }
+ typeArrayOop annotations() const;
+
+ // Initial field value
+ bool has_initial_value() const { return _initial_value_index != 0; }
+ constantTag initial_value_tag() const; // The tag will return true on one of is_int(), is_long(), is_single(), is_double()
+ jint int_initial_value() const;
+ jlong long_initial_value() const;
+ jfloat float_initial_value() const;
+ jdouble double_initial_value() const;
+ oop string_initial_value(TRAPS) const;
+
+ // Field signature type
+ BasicType field_type() const { return FieldType::basic_type(signature()); }
+
+ // Access flags
+ bool is_public() const { return _access_flags.is_public(); }
+ bool is_private() const { return _access_flags.is_private(); }
+ bool is_protected() const { return _access_flags.is_protected(); }
+ bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); }
+
+ bool is_static() const { return _access_flags.is_static(); }
+ bool is_final() const { return _access_flags.is_final(); }
+ bool is_volatile() const { return _access_flags.is_volatile(); }
+ bool is_transient() const { return _access_flags.is_transient(); }
+
+ bool is_synthetic() const { return _access_flags.is_synthetic(); }
+
+ bool is_field_access_watched() const { return _access_flags.is_field_access_watched(); }
+ bool is_field_modification_watched() const
+ { return _access_flags.is_field_modification_watched(); }
+ void set_is_field_access_watched(const bool value)
+ { _access_flags.set_is_field_access_watched(value); }
+ void set_is_field_modification_watched(const bool value)
+ { _access_flags.set_is_field_modification_watched(value); }
+
+ // Initialization
+ void initialize(klassOop k, int index);
+
+ // Print
+ void print_on(outputStream* st) const PRODUCT_RETURN;
+ void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN;
+};