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.*;
36import com.intellij.psi.impl.source.codeStyle.CodeEditUtil;
37import com.intellij.psi.infos.CandidateInfo;
38import com.intellij.psi.scope.PsiScopeProcessor;
39import com.intellij.util.IncorrectOperationException;
40import org.jetbrains.annotations.NotNull;
41import org.jetbrains.annotations.Nullable;
42import org.jf.smalidea.psi.SmaliCompositeElementFactory;
43import org.jf.smalidea.psi.SmaliElementTypes;
44import org.jf.smalidea.psi.leaf.SmaliClassDescriptor;
45import org.jf.smalidea.util.NameUtils;
46
47public class SmaliClassTypeElement extends SmaliTypeElement implements PsiJavaCodeReferenceElement {
48    public static final SmaliClassTypeElement[] EMPTY_ARRAY = new SmaliClassTypeElement[0];
49
50    public static final SmaliCompositeElementFactory FACTORY = new SmaliCompositeElementFactory() {
51        @Override public SmaliCompositeElement createElement() {
52            return new SmaliClassTypeElement();
53        }
54    };
55
56    @Nullable private SmaliClassType classType = null;
57
58    public SmaliClassTypeElement() {
59        super(SmaliElementTypes.CLASS_TYPE);
60    }
61
62    @NotNull @Override public SmaliClassType getType() {
63        if (classType == null) {
64            classType = new SmaliClassType(this);
65        }
66        return classType;
67    }
68
69    @Override public String getName() {
70        return NameUtils.shortNameFromQualifiedName(getCanonicalText());
71    }
72
73    @Nullable @Override public SmaliClassTypeElement getInnermostComponentReferenceElement() {
74        return this;
75    }
76
77    @Override public PsiElement getElement() {
78        return this;
79    }
80
81    @Override public PsiReference getReference() {
82        return this;
83    }
84
85    @Override public TextRange getRangeInElement() {
86        return new TextRange(0, getTextLength());
87    }
88
89    @Nullable @Override public PsiClass resolve() {
90        return NameUtils.resolveSmaliType(this, getText());
91    }
92
93    @NotNull @Override public String getCanonicalText() {
94        return getQualifiedName();
95    }
96
97    @Override public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException {
98        SmaliClassDescriptor descriptor = getReferenceNameElement();
99        if (descriptor == null) {
100            throw new IncorrectOperationException();
101        }
102
103        SmaliClassDescriptor newDescriptor = new SmaliClassDescriptor(NameUtils.javaToSmaliType(newElementName));
104        CodeEditUtil.setNodeGenerated(newDescriptor, true);
105
106        this.replaceChild(descriptor, newDescriptor);
107        return this;
108    }
109
110    @Override public PsiElement bindToElement(@NotNull PsiElement element) throws IncorrectOperationException {
111        if (element instanceof PsiClass) {
112            handleElementRename(((PsiClass) element).getQualifiedName());
113            return this;
114        }
115        throw new IncorrectOperationException();
116    }
117
118    @Override public boolean isReferenceTo(PsiElement element) {
119        if (!(element instanceof PsiClass)) {
120            return false;
121        }
122        return element.getManager().areElementsEquivalent(element, resolve());
123    }
124
125    @NotNull @Override public Object[] getVariants() {
126        // TODO: implement this?
127        return new Object[0];
128    }
129
130    @Override public boolean isSoft() {
131        return false;
132    }
133
134    // ***************************************************************************
135    // Below are the PsiJavaCodeReferenceElement-specific methods
136
137    @Override public void processVariants(@NotNull PsiScopeProcessor processor) {
138        // TODO: maybe just do nothing?
139        throw new UnsupportedOperationException();
140    }
141
142    @Nullable @Override public SmaliClassDescriptor getReferenceNameElement() {
143        return findChildByClass(SmaliClassDescriptor.class);
144    }
145
146    @Nullable @Override public PsiReferenceParameterList getParameterList() {
147        // TODO: (generics) implement this
148        return null;
149    }
150
151    @NotNull @Override public PsiType[] getTypeParameters() {
152        // TODO: (generics) implement this
153        return new PsiType[0];
154    }
155
156    @Override public boolean isQualified() {
157        // TODO: should this return false for classes in the top level package?
158        return true;
159    }
160
161    @Override public String getQualifiedName() {
162        PsiClass psiClass = resolve();
163        if (psiClass != null) {
164            return psiClass.getQualifiedName();
165        }
166        return NameUtils.smaliToJavaType(getText());
167    }
168
169    @NotNull @Override public JavaResolveResult advancedResolve(boolean incompleteCode) {
170        PsiClass element = resolve();
171        if (element == null) {
172            return JavaResolveResult.EMPTY;
173        }
174        return new CandidateInfo(element, PsiSubstitutor.EMPTY);
175    }
176
177    @NotNull @Override public JavaResolveResult[] multiResolve(boolean incompleteCode) {
178        PsiClass element = resolve();
179        if (element == null) {
180            return JavaResolveResult.EMPTY_ARRAY;
181        }
182        return new CandidateInfo[] { new CandidateInfo(element, PsiSubstitutor.EMPTY) };
183    }
184
185    @Nullable @Override public PsiElement getQualifier() {
186        return null;
187    }
188
189    @Nullable @Override public String getReferenceName() {
190        return getName();
191    }
192}
193