smalidea/src/main/java/org/jf/smalidea/psi/impl/SmaliStubBasedPsiElement.java

/*
 * Copyright 2014, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.jf.smalidea.psi.impl;

import com.intellij.extapi.psi.StubBasedPsiElementBase;
import com.intellij.lang.ASTNode;
import com.intellij.psi.PsiElement;
import com.intellij.psi.StubBasedPsiElement;
import com.intellij.psi.stubs.IStubElementType;
import com.intellij.psi.stubs.StubElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public abstract class SmaliStubBasedPsiElement<T extends StubElement> extends StubBasedPsiElementBase<T>
        implements StubBasedPsiElement<T> {
    protected SmaliStubBasedPsiElement(@NotNull T stub, @NotNull IStubElementType nodeType) {
        super(stub, nodeType);
    }

    protected SmaliStubBasedPsiElement(@NotNull ASTNode node) {
        super(node);
    }

    @SuppressWarnings("unchecked")
    @Nullable
    protected <E extends PsiElement> E findStubOrPsiAncestorOfType(@NotNull Class<E> aClass) {
        T stub = getStub();
        if (stub != null)  {
            StubElement parent = stub.getParentStub();
            while (parent != null) {
                PsiElement parentPsi = parent.getPsi();
                if (aClass.isInstance(parentPsi)) {
                    return (E)parentPsi;
                }
                parent = parent.getParentStub();
            }
            return null;
        }

        PsiElement parent = getParent();
        while (parent != null) {
            if (aClass.isInstance(parent)) {
                return (E)parent;
            }
            parent = parent.getParent();
        }
        return null;
    }

    public String toString() {
        return this.getClass().getSimpleName() + "(" + this.getElementType().toString() + ")";
    }
}