/*
* SonarQube Java
* Copyright (C) 2012-2016 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.plugins.java.api.tree;
import com.google.common.annotations.Beta;
import org.sonar.java.model.expression.TypeArgumentListTreeImpl;
import javax.annotation.Nullable;
import java.util.List;
/**
* Default implementation of {@link TreeVisitor}.
*/
@Beta
public class BaseTreeVisitor implements TreeVisitor {
protected void scan(List<? extends Tree> trees) {
for (Tree tree : trees) {
scan(tree);
}
}
protected void scan(@Nullable Tree tree) {
if (tree != null) {
tree.accept(this);
}
}
protected void scan(@Nullable ListTree<? extends Tree> listTree) {
scan((Tree) listTree);
}
@Override
public void visitCompilationUnit(CompilationUnitTree tree) {
scan(tree.packageDeclaration());
scan(tree.imports());
scan(tree.types());
}
@Override
public void visitImport(ImportTree tree) {
scan(tree.qualifiedIdentifier());
}
@Override
public void visitClass(ClassTree tree) {
scan(tree.modifiers());
scan(tree.typeParameters());
scan(tree.superClass());
scan(tree.superInterfaces());
scan(tree.members());
}
@Override
public void visitMethod(MethodTree tree) {
scan(tree.modifiers());
scan(tree.typeParameters());
scan(tree.returnType());
scan(tree.parameters());
scan(tree.defaultValue());
scan(tree.throwsClauses());
scan(tree.block());
}
@Override
public void visitBlock(BlockTree tree) {
scan(tree.body());
}
@Override
public void visitEmptyStatement(EmptyStatementTree tree) {
// no subtrees
}
@Override
public void visitLabeledStatement(LabeledStatementTree tree) {
scan(tree.label());
scan(tree.statement());
}
@Override
public void visitExpressionStatement(ExpressionStatementTree tree) {
scan(tree.expression());
}
@Override
public void visitIfStatement(IfStatementTree tree) {
scan(tree.condition());
scan(tree.thenStatement());
scan(tree.elseStatement());
}
@Override
public void visitAssertStatement(AssertStatementTree tree) {
scan(tree.condition());
scan(tree.detail());
}
@Override
public void visitSwitchStatement(SwitchStatementTree tree) {
scan(tree.expression());
scan(tree.cases());
}
@Override
public void visitCaseGroup(CaseGroupTree tree) {
scan(tree.labels());
scan(tree.body());
}
@Override
public void visitCaseLabel(CaseLabelTree tree) {
scan(tree.expression());
}
@Override
public void visitWhileStatement(WhileStatementTree tree) {
scan(tree.condition());
scan(tree.statement());
}
@Override
public void visitDoWhileStatement(DoWhileStatementTree tree) {
scan(tree.statement());
scan(tree.condition());
}
@Override
public void visitForStatement(ForStatementTree tree) {
scan(tree.initializer());
scan(tree.condition());
scan(tree.update());
scan(tree.statement());
}
@Override
public void visitForEachStatement(ForEachStatement tree) {
scan(tree.variable());
scan(tree.expression());
scan(tree.statement());
}
@Override
public void visitBreakStatement(BreakStatementTree tree) {
scan(tree.label());
}
@Override
public void visitContinueStatement(ContinueStatementTree tree) {
scan(tree.label());
}
@Override
public void visitReturnStatement(ReturnStatementTree tree) {
scan(tree.expression());
}
@Override
public void visitThrowStatement(ThrowStatementTree tree) {
scan(tree.expression());
}
@Override
public void visitSynchronizedStatement(SynchronizedStatementTree tree) {
scan(tree.expression());
scan(tree.block());
}
@Override
public void visitTryStatement(TryStatementTree tree) {
scan(tree.resources());
scan(tree.block());
scan(tree.catches());
scan(tree.finallyBlock());
}
@Override
public void visitCatch(CatchTree tree) {
scan(tree.parameter());
scan(tree.block());
}
@Override
public void visitUnaryExpression(UnaryExpressionTree tree) {
scan(tree.expression());
}
@Override
public void visitBinaryExpression(BinaryExpressionTree tree) {
scan(tree.leftOperand());
scan(tree.rightOperand());
}
@Override
public void visitConditionalExpression(ConditionalExpressionTree tree) {
scan(tree.condition());
scan(tree.trueExpression());
scan(tree.falseExpression());
}
@Override
public void visitArrayAccessExpression(ArrayAccessExpressionTree tree) {
scan(tree.expression());
scan(tree.dimension());
}
@Override
public void visitMemberSelectExpression(MemberSelectExpressionTree tree) {
scan(tree.annotations());
scan(tree.expression());
scan(tree.identifier());
}
@Override
public void visitNewClass(NewClassTree tree) {
scan(tree.enclosingExpression());
scan(tree.identifier());
scan(tree.typeArguments());
scan(tree.arguments());
scan(tree.classBody());
}
@Override
public void visitNewArray(NewArrayTree tree) {
scan(tree.type());
scan(tree.dimensions());
scan(tree.initializers());
}
@Override
public void visitMethodInvocation(MethodInvocationTree tree) {
scan(tree.methodSelect());
scan(tree.typeArguments());
scan(tree.arguments());
}
@Override
public void visitTypeCast(TypeCastTree tree) {
scan(tree.type());
scan(tree.expression());
}
@Override
public void visitInstanceOf(InstanceOfTree tree) {
scan(tree.expression());
scan(tree.type());
}
@Override
public void visitParenthesized(ParenthesizedTree tree) {
scan(tree.expression());
}
@Override
public void visitAssignmentExpression(AssignmentExpressionTree tree) {
scan(tree.variable());
scan(tree.expression());
}
@Override
public void visitLiteral(LiteralTree tree) {
// no subtrees
}
@Override
public void visitIdentifier(IdentifierTree tree) {
scan(tree.annotations());
}
@Override
public void visitVariable(VariableTree tree) {
scan(tree.modifiers());
scan(tree.type());
scan(tree.initializer());
}
@Override
public void visitPrimitiveType(PrimitiveTypeTree tree) {
scan(tree.annotations());
}
@Override
public void visitArrayType(ArrayTypeTree tree) {
scan(tree.type());
}
@Override
public void visitEnumConstant(EnumConstantTree tree) {
scan(tree.modifiers());
scan(tree.initializer());
}
@Override
public void visitParameterizedType(ParameterizedTypeTree tree) {
scan(tree.annotations());
scan(tree.type());
scan(tree.typeArguments());
}
@Override
public void visitWildcard(WildcardTree tree) {
scan(tree.annotations());
scan(tree.bound());
}
@Override
public void visitUnionType(UnionTypeTree tree) {
scan(tree.typeAlternatives());
}
@Override
public void visitModifier(ModifiersTree modifiersTree) {
scan(modifiersTree.annotations());
}
@Override
public void visitAnnotation(AnnotationTree annotationTree) {
scan(annotationTree.annotationType());
scan(annotationTree.arguments());
}
@Override
public void visitLambdaExpression(LambdaExpressionTree lambdaExpressionTree) {
scan(lambdaExpressionTree.parameters());
scan(lambdaExpressionTree.body());
}
@Override
public void visitTypeParameter(TypeParameterTree typeParameter) {
scan(typeParameter.identifier());
scan(typeParameter.bounds());
}
@Override
public void visitTypeArguments(TypeArgumentListTreeImpl trees) {
scan((List<Tree>)trees);
}
@Override
public void visitTypeParameters(TypeParameters trees) {
scan((List<TypeParameterTree>)trees);
}
@Override
public void visitOther(Tree tree) {
// nop
}
@Override
public void visitMethodReference(MethodReferenceTree methodReferenceTree) {
scan(methodReferenceTree.expression());
scan(methodReferenceTree.typeArguments());
scan(methodReferenceTree.method());
}
@Override
public void visitPackage(PackageDeclarationTree tree) {
scan(tree.annotations());
scan(tree.packageName());
}
@Override
public void visitArrayDimension(ArrayDimensionTree tree) {
scan(tree.annotations());
scan(tree.expression());
}
}