/*

 * Copyright (C) 2007-2010 Júlio Vilmar Gesser.

 * Copyright (C) 2011, 2013-2021 The JavaParser Team.

 *

 * This file is part of JavaParser.

 *

 * JavaParser can be used either under the terms of

 * a) 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.

 * b) the terms of the Apache License

 *

 * You should have received a copy of both licenses in LICENCE.LGPL and

 * LICENCE.APACHE. Please refer to those files for details.

 *

 * JavaParser 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.

 */

package com.github.javaparser.ast.expr;

import com.github.javaparser.TokenRange;

import com.github.javaparser.ast.AllFieldsConstructor;

import com.github.javaparser.ast.Generated;

import com.github.javaparser.ast.Node;

import com.github.javaparser.ast.nodeTypes.NodeWithSimpleName;

import com.github.javaparser.ast.observer.ObservableProperty;

import com.github.javaparser.ast.visitor.CloneVisitor;

import com.github.javaparser.ast.visitor.GenericVisitor;

import com.github.javaparser.ast.visitor.VoidVisitor;

import com.github.javaparser.metamodel.JavaParserMetaModel;

import com.github.javaparser.metamodel.MemberValuePairMetaModel;

import static com.github.javaparser.utils.Utils.assertNotNull;

/**

 * A value for a member of an annotation.

 * In {@code @Counters(a=15)} a=15 is a MemberValuePair. Its name is a, and its value is 15.

 *

 * @author Julio Vilmar Gesser

 */

public class MemberValuePair extends Node implements NodeWithSimpleName<MemberValuePair> {

    private SimpleName name;

    private Expression value;

    public MemberValuePair() {

        this(null, new SimpleName(), new StringLiteralExpr());

    }

    public MemberValuePair(final String name, final Expression value) {

        this(null, new SimpleName(name), value);

    }

    @AllFieldsConstructor

    public MemberValuePair(final SimpleName name, final Expression value) {

        this(null, name, value);

    }

    /**

     * This constructor is used by the parser and is considered private.

     */

    @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")

    public MemberValuePair(TokenRange tokenRange, SimpleName name, Expression value) {

        super(tokenRange);

        setName(name);

        setValue(value);

        customInitialization();

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")

    public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {

        return v.visit(this, arg);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")

    public <A> void accept(final VoidVisitor<A> v, final A arg) {

        v.visit(this, arg);

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public SimpleName getName() {

        return name;

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public Expression getValue() {

        return value;

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public MemberValuePair setName(final SimpleName name) {

        assertNotNull(name);

        if (name == this.name) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.NAME, this.name, name);

        if (this.name != null)

            this.name.setParentNode(null);

        this.name = name;

        setAsParentNodeOf(name);

        return this;

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public MemberValuePair setValue(final Expression value) {

        assertNotNull(value);

        if (value == this.value) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.VALUE, this.value, value);

        if (this.value != null)

            this.value.setParentNode(null);

        this.value = value;

        setAsParentNodeOf(value);

        return this;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")

    public boolean remove(Node node) {

        if (node == null)

            return false;

        return super.remove(node);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.CloneGenerator")

    public MemberValuePair clone() {

        return (MemberValuePair) accept(new CloneVisitor(), null);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")

    public MemberValuePairMetaModel getMetaModel() {

        return JavaParserMetaModel.memberValuePairMetaModel;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator")

    public boolean replace(Node node, Node replacementNode) {

        if (node == null)

            return false;

        if (node == name) {

            setName((SimpleName) replacementNode);

            return true;

        }

        if (node == value) {

            setValue((Expression) replacementNode);

            return true;

        }

        return super.replace(node, replacementNode);

    }

}