org.sonar.java.model.expression.NewClassTreeImpl.java Source code

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Here is the source code for org.sonar.java.model.expression.NewClassTreeImpl.java

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/*
 * SonarQube Java
 * Copyright (C) 2012-2017 SonarSource SA
 * mailto:info 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.java.model.expression;

import com.google.common.collect.ImmutableList;
import org.sonar.java.model.AbstractTypedTree;
import org.sonar.java.model.InternalSyntaxToken;
import org.sonar.java.model.declaration.ClassTreeImpl;
import org.sonar.plugins.java.api.semantic.Symbol;
import org.sonar.plugins.java.api.tree.Arguments;
import org.sonar.plugins.java.api.tree.ClassTree;
import org.sonar.plugins.java.api.tree.ExpressionTree;
import org.sonar.plugins.java.api.tree.IdentifierTree;
import org.sonar.plugins.java.api.tree.MemberSelectExpressionTree;
import org.sonar.plugins.java.api.tree.NewClassTree;
import org.sonar.plugins.java.api.tree.ParameterizedTypeTree;
import org.sonar.plugins.java.api.tree.SyntaxToken;
import org.sonar.plugins.java.api.tree.Tree;
import org.sonar.plugins.java.api.tree.TreeVisitor;
import org.sonar.plugins.java.api.tree.TypeArguments;
import org.sonar.plugins.java.api.tree.TypeTree;

import javax.annotation.Nullable;

public class NewClassTreeImpl extends AbstractTypedTree implements NewClassTree {

    @Nullable
    private ExpressionTree enclosingExpression;
    @Nullable
    private SyntaxToken dotToken;
    @Nullable
    private SyntaxToken newKeyword;
    @Nullable
    private TypeArguments typeArguments;
    private TypeTree identifier;
    private final Arguments arguments;
    @Nullable
    private final ClassTree classBody;

    public NewClassTreeImpl(Arguments arguments, @Nullable ClassTreeImpl classBody) {
        super(Kind.NEW_CLASS);
        this.enclosingExpression = null;
        this.arguments = arguments;
        this.classBody = classBody;
    }

    public NewClassTreeImpl completeWithIdentifier(TypeTree identifier) {
        this.identifier = identifier;
        return this;
    }

    public NewClassTreeImpl completeWithEnclosingExpression(ExpressionTree enclosingExpression) {
        this.enclosingExpression = enclosingExpression;
        return this;
    }

    public NewClassTreeImpl completeWithNewKeyword(SyntaxToken newKeyword) {
        this.newKeyword = newKeyword;
        return this;
    }

    public NewClassTreeImpl completeWithTypeArguments(TypeArgumentListTreeImpl typeArguments) {
        this.typeArguments = typeArguments;
        return this;
    }

    @Override
    public Kind kind() {
        return Kind.NEW_CLASS;
    }

    @Nullable
    @Override
    public ExpressionTree enclosingExpression() {
        return enclosingExpression;
    }

    @Nullable
    @Override
    public TypeArguments typeArguments() {
        return typeArguments;
    }

    @Override
    public TypeTree identifier() {
        return identifier;
    }

    @Override
    public Arguments arguments() {
        return arguments;
    }

    @Nullable
    @Override
    public ClassTree classBody() {
        return classBody;
    }

    @Override
    public void accept(TreeVisitor visitor) {
        visitor.visitNewClass(this);
    }

    @Override
    public Iterable<Tree> children() {
        ImmutableList.Builder<Tree> builder = ImmutableList.builder();
        addIfNotNull(builder, enclosingExpression, dotToken, newKeyword, typeArguments);
        builder.add(identifier);
        builder.add(arguments);
        addIfNotNull(builder, classBody);
        return builder.build();
    }

    public IdentifierTree getConstructorIdentifier() {
        return getConstructorIdentifier(identifier());
    }

    private static IdentifierTree getConstructorIdentifier(Tree constructorSelect) {
        IdentifierTree constructorIdentifier;
        if (constructorSelect.is(Tree.Kind.MEMBER_SELECT)) {
            MemberSelectExpressionTree mset = (MemberSelectExpressionTree) constructorSelect;
            constructorIdentifier = mset.identifier();
        } else if (constructorSelect.is(Tree.Kind.IDENTIFIER)) {
            constructorIdentifier = (IdentifierTree) constructorSelect;
        } else if (constructorSelect.is(Tree.Kind.PARAMETERIZED_TYPE)) {
            constructorIdentifier = getConstructorIdentifier(((ParameterizedTypeTree) constructorSelect).type());
        } else {
            throw new IllegalStateException("Constructor select is not of the expected type " + constructorSelect);
        }
        return constructorIdentifier;
    }

    @Nullable
    @Override
    public SyntaxToken newKeyword() {
        return newKeyword;
    }

    public void completeWithDotToken(InternalSyntaxToken dotToken) {
        this.dotToken = dotToken;
    }

    @Nullable
    @Override
    public SyntaxToken dotToken() {
        return dotToken;
    }

    @Override
    public Symbol constructorSymbol() {
        return this.getConstructorIdentifier().symbol();
    }

    private static void addIfNotNull(ImmutableList.Builder<Tree> builder, Tree... trees) {
        for (Tree tree : trees) {
            if (tree != null) {
                builder.add(tree);
            }
        }
    }
}