1/*
2 * Copyright 2014, Google Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 *     * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *     * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.smalidea.psi.impl;
33
34import com.intellij.openapi.util.TextRange;
35import com.intellij.psi.PsiClass;
36import com.intellij.psi.PsiElement;
37import com.intellij.psi.PsiField;
38import com.intellij.psi.PsiReference;
39import com.intellij.util.ArrayUtil;
40import com.intellij.util.IncorrectOperationException;
41import org.jetbrains.annotations.NotNull;
42import org.jetbrains.annotations.Nullable;
43import org.jf.smalidea.psi.SmaliCompositeElementFactory;
44import org.jf.smalidea.psi.SmaliElementTypes;
45
46public class SmaliFieldReference extends SmaliCompositeElement implements PsiReference {
47    public static final SmaliCompositeElementFactory FACTORY = new SmaliCompositeElementFactory() {
48        @Override public SmaliCompositeElement createElement() {
49            return new SmaliFieldReference();
50        }
51    };
52
53    public SmaliFieldReference() {
54        super(SmaliElementTypes.FIELD_REFERENCE);
55    }
56
57    @Nullable
58    public PsiClass getContainingClass() {
59        SmaliClassTypeElement containingClassReference = getContainingType();
60        if (containingClassReference == null) {
61            return null;
62        }
63        PsiClass containingClass = containingClassReference.resolve();
64        if (containingClass == null) {
65            return null;
66        }
67
68        return containingClass;
69    }
70
71    @Nullable
72    public SmaliClassTypeElement getContainingType() {
73        return findChildByClass(SmaliClassTypeElement.class);
74    }
75
76    @Nullable
77    public SmaliMemberName getMemberName() {
78        return findChildByClass(SmaliMemberName.class);
79    }
80
81    @Nullable
82    public SmaliTypeElement getFieldType() {
83        SmaliTypeElement[] types = findChildrenByClass(SmaliTypeElement.class);
84        assert types.length == 2;
85        return types[1];
86    }
87
88    @Override public PsiReference getReference() {
89        return this;
90    }
91
92    @Override public String getName() {
93        SmaliMemberName memberName = getMemberName();
94        if (memberName == null) {
95            return null;
96        }
97        return memberName.getText();
98    }
99
100    @Override public PsiElement getElement() {
101        return this;
102    }
103
104    @Override public TextRange getRangeInElement() {
105        return new TextRange(0, getTextLength());
106    }
107
108    @NotNull @Override public String getCanonicalText() {
109        return getText();
110    }
111
112    @Nullable @Override public PsiField resolve() {
113        PsiClass containingClass = getContainingClass();
114        if (containingClass == null) {
115            return null;
116        }
117
118        SmaliMemberName memberName = getMemberName();
119        if (memberName == null) {
120            return null;
121        }
122
123        return containingClass.findFieldByName(memberName.getText(), true);
124    }
125
126    @Override public boolean isReferenceTo(PsiElement element) {
127        return resolve() == element;
128    }
129
130    @NotNull @Override public Object[] getVariants() {
131        return ArrayUtil.EMPTY_OBJECT_ARRAY;
132    }
133
134    @Override public boolean isSoft() {
135        return false;
136    }
137
138    @Override public PsiElement bindToElement(@NotNull PsiElement element) throws IncorrectOperationException {
139        //TODO: implement this
140        throw new IncorrectOperationException();
141    }
142
143    @Override public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException {
144        SmaliMemberName memberName = getMemberName();
145        if (memberName == null) {
146            throw new IncorrectOperationException();
147        }
148        memberName.setName(newElementName);
149        return this;
150    }
151}
152