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.google.common.collect.ImmutableList; 35 import com.intellij.lang.ASTNode; 36 import com.intellij.psi.PsiElement; 37 import com.intellij.psi.impl.source.tree.CompositePsiElement; 38 import com.intellij.psi.tree.IElementType; 39 import org.jetbrains.annotations.NotNull; 40 import org.jetbrains.annotations.Nullable; 41 42 import java.lang.reflect.Array; 43 import java.util.ArrayList; 44 import java.util.List; 45 46 public abstract class SmaliCompositeElement extends CompositePsiElement { SmaliCompositeElement(IElementType type)47 public SmaliCompositeElement(IElementType type) { 48 super(type); 49 } 50 51 @NotNull 52 @SuppressWarnings("unchecked") findChildrenByType(IElementType elementType)53 protected List<ASTNode> findChildrenByType(IElementType elementType) { 54 List<ASTNode> result = ImmutableList.of(); 55 ASTNode child = getNode().getFirstChildNode(); 56 while (child != null) { 57 if (elementType == child.getElementType()) { 58 if (result.size() == 0) { 59 result = new ArrayList<ASTNode>(); 60 } 61 result.add((ASTNode)child.getPsi()); 62 } 63 child = child.getTreeNext(); 64 } 65 return result; 66 } 67 68 @NotNull 69 @SuppressWarnings("unchecked") findChildrenByClass(Class<T> aClass)70 protected <T> T[] findChildrenByClass(Class<T> aClass) { 71 List<T> result = new ArrayList<T>(); 72 for (PsiElement cur = getFirstChild(); cur != null; cur = cur.getNextSibling()) { 73 if (aClass.isInstance(cur)) result.add((T)cur); 74 } 75 return result.toArray((T[]) Array.newInstance(aClass, result.size())); 76 } 77 78 @Nullable 79 @SuppressWarnings("unchecked") findChildByClass(Class<T> aClass)80 protected <T> T findChildByClass(Class<T> aClass) { 81 for (PsiElement cur = getFirstChild(); cur != null; cur = cur.getNextSibling()) { 82 if (aClass.isInstance(cur)) return (T)cur; 83 } 84 return null; 85 } 86 87 @Nullable 88 @SuppressWarnings("unchecked") findAncestorByClass(Class<T> aClass)89 protected <T> T findAncestorByClass(Class<T> aClass) { 90 PsiElement parent = getParent(); 91 while (parent != null) { 92 if (aClass.isInstance(parent)) { 93 return (T)parent; 94 } 95 parent = parent.getParent(); 96 } 97 return null; 98 } 99 100 @Nullable 101 @SuppressWarnings("unchecked") findNextSiblingByClass(@otNull Class<T> cls)102 public <T> T findNextSiblingByClass(@NotNull Class<T> cls) { 103 PsiElement prev = getNextSibling(); 104 while (true) { 105 if (prev == null) { 106 return null; 107 } else if (cls.isInstance(prev)) { 108 return (T)prev; 109 } 110 prev = prev.getNextSibling(); 111 } 112 } 113 114 @Nullable 115 @SuppressWarnings("unchecked") findPrevSiblingByClass(@otNull Class<T> cls)116 public <T> T findPrevSiblingByClass(@NotNull Class<T> cls) { 117 PsiElement prev = getPrevSibling(); 118 while (true) { 119 if (prev == null) { 120 return null; 121 } else if (cls.isInstance(prev)) { 122 return (T)prev; 123 } 124 prev = prev.getPrevSibling(); 125 } 126 } 127 } 128