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      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 
     32 package org.jf.smalidea.psi.impl;
     33 
     34 import com.intellij.openapi.util.TextRange;
     35 import com.intellij.psi.PsiElement;
     36 import com.intellij.psi.PsiReference;
     37 import com.intellij.util.ArrayUtil;
     38 import com.intellij.util.IncorrectOperationException;
     39 import org.jetbrains.annotations.NotNull;
     40 import org.jetbrains.annotations.Nullable;
     41 import org.jf.smalidea.psi.SmaliCompositeElementFactory;
     42 import org.jf.smalidea.psi.SmaliElementTypes;
     43 
     44 public class SmaliLabelReference extends SmaliCompositeElement implements PsiReference {
     45     public static final SmaliCompositeElementFactory FACTORY = new SmaliCompositeElementFactory() {
     46         @Override public SmaliCompositeElement createElement() {
     47             return new SmaliLabelReference();
     48         }
     49     };
     50 
     51     public SmaliLabelReference() {
     52         super(SmaliElementTypes.LABEL_REFERENCE);
     53     }
     54 
     55     @Override public String getName() {
     56         return getText().substring(1);
     57     }
     58 
     59     @Override public PsiReference getReference() {
     60         return this;
     61     }
     62 
     63     @Override public PsiElement getElement() {
     64         return this;
     65     }
     66 
     67     @Override public TextRange getRangeInElement() {
     68         return new TextRange(0, getTextLength());
     69     }
     70 
     71     @Nullable @Override public SmaliLabel resolve() {
     72         SmaliMethod method = findAncestorByClass(SmaliMethod.class);
     73         if (method == null) {
     74             return null;
     75         }
     76         return method.getLabel(getText());
     77     }
     78 
     79     @NotNull @Override public String getCanonicalText() {
     80         return getText();
     81     }
     82 
     83     @Override public boolean isReferenceTo(PsiElement element) {
     84         return resolve() == element;
     85     }
     86 
     87     @NotNull @Override public Object[] getVariants() {
     88         return ArrayUtil.EMPTY_OBJECT_ARRAY;
     89     }
     90 
     91     @Override public boolean isSoft() {
     92         return false;
     93     }
     94 
     95     @Override public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException {
     96         //TODO: implement this
     97         throw new IncorrectOperationException();
     98     }
     99 
    100     @Override public PsiElement bindToElement(@NotNull PsiElement element) throws IncorrectOperationException {
    101         //TODO: implement this
    102         throw new IncorrectOperationException();
    103     }
    104 }
    105