/*

 * 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.stmt;

import com.github.javaparser.TokenRange;

import com.github.javaparser.ast.*;

import com.github.javaparser.ast.body.Parameter;

import com.github.javaparser.ast.expr.AnnotationExpr;

import com.github.javaparser.ast.expr.SimpleName;

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

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

import com.github.javaparser.ast.type.ClassOrInterfaceType;

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.CatchClauseMetaModel;

import com.github.javaparser.metamodel.JavaParserMetaModel;

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

/**

 * The catch part of a try-catch-finally. <br>In {@code try { ... } catch (Exception e) { ... }} the CatchClause

 * is {@code catch (Exception e) { ... }}. Exception e is the parameter. The { ... } is the body.

 *

 * @author Julio Vilmar Gesser

 */

public class CatchClause extends Node implements NodeWithBlockStmt<CatchClause> {

    private Parameter parameter;

    private BlockStmt body;

    public CatchClause() {

        this(null, new Parameter(), new BlockStmt());

    }

    public CatchClause(final NodeList<Modifier> exceptModifier, final NodeList<AnnotationExpr> exceptAnnotations, final ClassOrInterfaceType exceptType, final SimpleName exceptName, final BlockStmt body) {

        this(null, new Parameter(null, exceptModifier, exceptAnnotations, exceptType, false, new NodeList<>(), exceptName), body);

    }

    @AllFieldsConstructor

    public CatchClause(final Parameter parameter, final BlockStmt body) {

        this(null, parameter, body);

    }

    /**

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

     */

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

    public CatchClause(TokenRange tokenRange, Parameter parameter, BlockStmt body) {

        super(tokenRange);

        setParameter(parameter);

        setBody(body);

        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);

    }

    /**

     * Note that the type of the Parameter can be a UnionType. In this case, any annotations found at the start of the

     * catch(@X A a |...) are found directly in the Parameter. Annotations that are on the second or later type -

     * catch(A a | @X B b ...) are found on those types.

     */

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

    public Parameter getParameter() {

        return parameter;

    }

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

    public CatchClause setParameter(final Parameter parameter) {

        assertNotNull(parameter);

        if (parameter == this.parameter) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.PARAMETER, this.parameter, parameter);

        if (this.parameter != null)

            this.parameter.setParentNode(null);

        this.parameter = parameter;

        setAsParentNodeOf(parameter);

        return this;

    }

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

    public BlockStmt getBody() {

        return body;

    }

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

    public CatchClause setBody(final BlockStmt body) {

        assertNotNull(body);

        if (body == this.body) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.BODY, this.body, body);

        if (this.body != null)

            this.body.setParentNode(null);

        this.body = body;

        setAsParentNodeOf(body);

        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 CatchClause clone() {

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

    }

    @Override

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

    public CatchClauseMetaModel getMetaModel() {

        return JavaParserMetaModel.catchClauseMetaModel;

    }

    @Override

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

    public boolean replace(Node node, Node replacementNode) {

        if (node == null)

            return false;

        if (node == body) {

            setBody((BlockStmt) replacementNode);

            return true;

        }

        if (node == parameter) {

            setParameter((Parameter) replacementNode);

            return true;

        }

        return super.replace(node, replacementNode);

    }

}