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

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Here is the source code for org.sonar.java.model.expression.MethodInvocationTreeImpl.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.base.Preconditions;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import org.sonar.java.ast.parser.ArgumentListTreeImpl;
import org.sonar.java.model.AbstractTypedTree;
import org.sonar.java.resolve.Symbols;
import org.sonar.plugins.java.api.semantic.Symbol;
import org.sonar.plugins.java.api.tree.Arguments;
import org.sonar.plugins.java.api.tree.ExpressionTree;
import org.sonar.plugins.java.api.tree.MemberSelectExpressionTree;
import org.sonar.plugins.java.api.tree.MethodInvocationTree;
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 javax.annotation.Nullable;
import java.util.Collections;

public class MethodInvocationTreeImpl extends AbstractTypedTree implements MethodInvocationTree {

    private final ExpressionTree methodSelect;
    private final Arguments arguments;
    @Nullable
    private TypeArguments typeArguments;
    private Symbol symbol = Symbols.unknownSymbol;

    public MethodInvocationTreeImpl(ExpressionTree methodSelect, @Nullable TypeArguments typeArguments,
            ArgumentListTreeImpl arguments) {
        super(Kind.METHOD_INVOCATION);
        this.methodSelect = Preconditions.checkNotNull(methodSelect);
        this.typeArguments = typeArguments;
        this.arguments = Preconditions.checkNotNull(arguments);
    }

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

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

    @Override
    public SyntaxToken firstToken() {
        if (typeArguments() != null && methodSelect.is(Tree.Kind.MEMBER_SELECT)) {
            ExpressionTree expression = ((MemberSelectExpressionTree) methodSelect).expression();
            SyntaxToken firstToken = expression.firstToken();
            if (firstToken != null) {
                return firstToken;
            }
        }
        return super.firstToken();
    }

    @Override
    public ExpressionTree methodSelect() {
        return methodSelect;
    }

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

    @Override
    public Symbol symbol() {
        return symbol;
    }

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

    @Override
    public Iterable<Tree> children() {
        return Iterables.concat(
                typeArguments != null ? Collections.singletonList(typeArguments) : Collections.<Tree>emptyList(),
                Lists.newArrayList(methodSelect, arguments));
    }

    public void setSymbol(Symbol symbol) {
        Preconditions.checkState(this.symbol.isUnknown());
        this.symbol = symbol;
    }
}