121 return _holder->is_shared() && !is_static();
122 }
123
124 // Is this field a constant?
125 //
126 // Clarification: A field is considered constant if:
127 // 1. The field is both static and final
128 // 2. The canonical holder of the field has undergone
129 // static initialization.
130 // 3. If the field is an object or array, then the oop
131 // in question is allocated in perm space.
132 // 4. The field is not one of the special static/final
133 // non-constant fields. These are java.lang.System.in
134 // and java.lang.System.out. Abomination.
135 //
136 // Note: the check for case 4 is not yet implemented.
137 bool is_constant() { return _is_constant; }
138
139 // Get the constant value of this field.
140 ciConstant constant_value() {
141 assert(is_constant(), "illegal call to constant_value()");
142 return _constant_value;
143 }
144
145 // Check for link time errors. Accessing a field from a
146 // certain class via a certain bytecode may or may not be legal.
147 // This call checks to see if an exception may be raised by
148 // an access of this field.
149 //
150 // Usage note: if the same field is accessed multiple times
151 // in the same compilation, will_link will need to be checked
152 // at each point of access.
153 bool will_link(ciInstanceKlass* accessing_klass,
154 Bytecodes::Code bc);
155
156 // Java access flags
157 bool is_public () { return flags().is_public(); }
158 bool is_private () { return flags().is_private(); }
159 bool is_protected () { return flags().is_protected(); }
160 bool is_static () { return flags().is_static(); }
161 bool is_final () { return flags().is_final(); }
162 bool is_volatile () { return flags().is_volatile(); }
163 bool is_transient () { return flags().is_transient(); }
164
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121 return _holder->is_shared() && !is_static();
122 }
123
124 // Is this field a constant?
125 //
126 // Clarification: A field is considered constant if:
127 // 1. The field is both static and final
128 // 2. The canonical holder of the field has undergone
129 // static initialization.
130 // 3. If the field is an object or array, then the oop
131 // in question is allocated in perm space.
132 // 4. The field is not one of the special static/final
133 // non-constant fields. These are java.lang.System.in
134 // and java.lang.System.out. Abomination.
135 //
136 // Note: the check for case 4 is not yet implemented.
137 bool is_constant() { return _is_constant; }
138
139 // Get the constant value of this field.
140 ciConstant constant_value() {
141 assert(is_static() && is_constant(), "illegal call to constant_value()");
142 return _constant_value;
143 }
144
145 // Get the constant value of non-static final field in the given
146 // object.
147 ciConstant constant_value_of(ciObject* object) {
148 assert(!is_static() && is_constant(), "only if field is non-static constant");
149 assert(object->is_instance(), "must be instance");
150 return object->as_instance()->field_value(this);
151 }
152
153 // Check for link time errors. Accessing a field from a
154 // certain class via a certain bytecode may or may not be legal.
155 // This call checks to see if an exception may be raised by
156 // an access of this field.
157 //
158 // Usage note: if the same field is accessed multiple times
159 // in the same compilation, will_link will need to be checked
160 // at each point of access.
161 bool will_link(ciInstanceKlass* accessing_klass,
162 Bytecodes::Code bc);
163
164 // Java access flags
165 bool is_public () { return flags().is_public(); }
166 bool is_private () { return flags().is_private(); }
167 bool is_protected () { return flags().is_protected(); }
168 bool is_static () { return flags().is_static(); }
169 bool is_final () { return flags().is_final(); }
170 bool is_volatile () { return flags().is_volatile(); }
171 bool is_transient () { return flags().is_transient(); }
172
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