| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.dexgen.rop; |
| |
| import com.android.dexgen.rop.cst.CstNat; |
| import com.android.dexgen.rop.cst.CstType; |
| import com.android.dexgen.rop.cst.CstUtf8; |
| import com.android.dexgen.rop.cst.TypedConstant; |
| |
| /** |
| * Standard implementation of {@link Field}, which directly stores |
| * all the associated data. |
| */ |
| public final class StdField extends StdMember implements Field { |
| /** |
| * Constructs an instance. |
| * |
| * @param definingClass {@code non-null;} the defining class |
| * @param accessFlags access flags |
| * @param nat {@code non-null;} member name and type (descriptor) |
| * @param attributes {@code non-null;} list of associated attributes |
| */ |
| public StdField(CstType definingClass, int accessFlags, CstNat nat, |
| AttributeList attributes) { |
| super(definingClass, accessFlags, nat, attributes); |
| } |
| |
| /** |
| * Constructs an instance having Java field as its pattern. |
| * |
| * @param field {@code non-null;} pattern for dex field |
| */ |
| public StdField(java.lang.reflect.Field field) { |
| this(CstType.intern(field.getDeclaringClass()), |
| field.getModifiers(), |
| new CstNat(new CstUtf8(field.getName()), |
| CstType.intern(field.getType()).getDescriptor()), |
| new StdAttributeList(0)); |
| } |
| |
| /** |
| * Constructs an instance taking field description as user-friendly arguments. |
| * |
| * @param declaringClass {@code non-null;} the class field belongs to |
| * @param type {@code non-null;} type of the field |
| * @param name {@code non-null;} name of the field |
| * @param modifiers access flags of the field |
| */ |
| public StdField(Class definingClass, Class type, String name, int modifiers) { |
| this(CstType.intern(definingClass), |
| modifiers, |
| new CstNat(new CstUtf8(name), CstType.intern(type).getDescriptor()), |
| new StdAttributeList(0)); |
| } |
| |
| /** {@inheritDoc} */ |
| public TypedConstant getConstantValue() { |
| AttributeList attribs = getAttributes(); |
| AttConstantValue cval = (AttConstantValue) |
| attribs.findFirst(AttConstantValue.ATTRIBUTE_NAME); |
| |
| if (cval == null) { |
| return null; |
| } |
| |
| return cval.getConstantValue(); |
| } |
| } |