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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.psi.impl.source.tree.java;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.psi.*;
import com.intellij.psi.impl.PsiImplUtil;
import com.intellij.psi.impl.source.tree.*;
import com.intellij.psi.tree.ChildRoleBase;
import com.intellij.psi.tree.IElementType;
import com.intellij.util.CharTable;
import org.jetbrains.annotations.NotNull;
public class PsiExpressionListImpl extends CompositePsiElement implements PsiExpressionList {
private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.tree.java.PsiExpressionListImpl");
public PsiExpressionListImpl() {
super(JavaElementType.EXPRESSION_LIST);
}
@Override
@NotNull
public PsiExpression[] getExpressions() {
return getChildrenAsPsiElements(ElementType.EXPRESSION_BIT_SET, PsiExpression.ARRAY_FACTORY);
}
@Override
@NotNull
public PsiType[] getExpressionTypes() {
PsiExpression[] expressions = getExpressions();
PsiType[] types = PsiType.createArray(expressions.length);
for (int i = 0; i < types.length; i++) {
types[i] = expressions[i].getType();
}
return types;
}
@Override
public ASTNode findChildByRole(int role) {
LOG.assertTrue(ChildRole.isUnique(role));
switch (role) {
default:
return null;
case ChildRole.LPARENTH:
return getFirstChildNode() != null && getFirstChildNode().getElementType() == JavaTokenType.LPARENTH ? getFirstChildNode() : null;
case ChildRole.RPARENTH:
if (getLastChildNode() != null && getLastChildNode().getElementType() == JavaTokenType.RPARENTH) {
return getLastChildNode();
}
else {
return null;
}
}
}
@Override
public int getChildRole(ASTNode child) {
LOG.assertTrue(child.getTreeParent() == this);
IElementType i = child.getElementType();
if (i == JavaTokenType.COMMA) {
return ChildRole.COMMA;
}
else if (i == JavaTokenType.LPARENTH) {
return ChildRole.LPARENTH;
}
else if (i == JavaTokenType.RPARENTH) {
return ChildRole.RPARENTH;
}
else {
if (ElementType.EXPRESSION_BIT_SET.contains(child.getElementType())) {
return ChildRole.EXPRESSION_IN_LIST;
}
return ChildRoleBase.NONE;
}
}
@Override
public TreeElement addInternal(TreeElement first, ASTNode last, ASTNode anchor, Boolean before) {
final CharTable treeCharTab = SharedImplUtil.findCharTableByTree(this);
if (anchor == null) {
if (before == null || before.booleanValue()) {
anchor = findChildByRole(ChildRole.RPARENTH);
if (anchor == null) {
LeafElement lparenth = Factory.createSingleLeafElement(JavaTokenType.LPARENTH, "(", 0, 1, treeCharTab, getManager());
super.addInternal(lparenth, lparenth, null, Boolean.FALSE);
LeafElement rparenth = Factory.createSingleLeafElement(JavaTokenType.RPARENTH, ")", 0, 1, treeCharTab, getManager());
super.addInternal(rparenth, rparenth, null, Boolean.TRUE);
anchor = findChildByRole(ChildRole.RPARENTH);
LOG.assertTrue(anchor != null);
}
before = Boolean.TRUE;
}
else {
anchor = findChildByRole(ChildRole.LPARENTH);
if (anchor == null) {
LeafElement lparenth = Factory.createSingleLeafElement(JavaTokenType.LPARENTH, "(", 0, 1, treeCharTab, getManager());
super.addInternal(lparenth, lparenth, null, Boolean.FALSE);
LeafElement rparenth = Factory.createSingleLeafElement(JavaTokenType.RPARENTH, ")", 0, 1, treeCharTab, getManager());
super.addInternal(rparenth, rparenth, null, Boolean.TRUE);
anchor = findChildByRole(ChildRole.LPARENTH);
LOG.assertTrue(anchor != null);
}
before = Boolean.FALSE;
}
}
TreeElement firstAdded = super.addInternal(first, last, anchor, before);
if (ElementType.EXPRESSION_BIT_SET.contains(first.getElementType())) {
ASTNode element = first;
for (ASTNode child = element.getTreeNext(); child != null; child = child.getTreeNext()) {
if (child.getElementType() == JavaTokenType.COMMA) break;
if (ElementType.EXPRESSION_BIT_SET.contains(child.getElementType())) {
TreeElement comma = Factory.createSingleLeafElement(JavaTokenType.COMMA, ",", 0, 1, treeCharTab, getManager());
super.addInternal(comma, comma, element, Boolean.FALSE);
break;
}
}
for (ASTNode child = element.getTreePrev(); child != null; child = child.getTreePrev()) {
final IElementType t = child.getElementType();
if (t == JavaTokenType.COMMA) break;
if (ElementType.EXPRESSION_BIT_SET.contains(t) || ElementType.JAVA_COMMENT_BIT_SET.contains(t)) {
TreeElement comma = Factory.createSingleLeafElement(JavaTokenType.COMMA, ",", 0, 1, treeCharTab, getManager());
super.addInternal(comma, comma, child, Boolean.FALSE);
break;
}
}
}
return firstAdded;
}
@Override
public void deleteChildInternal(@NotNull ASTNode child) {
if (ElementType.EXPRESSION_BIT_SET.contains(child.getElementType())) {
ASTNode next = PsiImplUtil.skipWhitespaceAndComments(child.getTreeNext());
if (next != null && next.getElementType() == JavaTokenType.COMMA) {
deleteChildInternal(next);
}
else {
ASTNode prev = PsiImplUtil.skipWhitespaceAndCommentsBack(child.getTreePrev());
if (prev != null && prev.getElementType() == JavaTokenType.COMMA) {
deleteChildInternal(prev);
}
}
}
super.deleteChildInternal(child);
}
@Override
public void accept(@NotNull PsiElementVisitor visitor) {
if (visitor instanceof JavaElementVisitor) {
((JavaElementVisitor)visitor).visitExpressionList(this);
}
else {
visitor.visitElement(this);
}
}
public String toString() {
return "PsiExpressionList";
}
}
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