| /* |
| * Copyright (C) 2007-2010 JĂșlio Vilmar Gesser. |
| * Copyright (C) 2011, 2013-2016 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.AllFieldsConstructor; |
| import com.github.javaparser.ast.Generated; |
| import com.github.javaparser.ast.Node; |
| import com.github.javaparser.ast.NodeList; |
| import com.github.javaparser.ast.expr.Expression; |
| import com.github.javaparser.ast.nodeTypes.NodeWithStatements; |
| 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.SwitchEntryMetaModel; |
| import static com.github.javaparser.utils.Utils.assertNotNull; |
| |
| /** |
| * <h1>One case in a switch statement</h1> |
| * The main Javadoc is in {@link SwitchStmt} |
| * <h2>Java 1.0-11</h2> |
| * <pre> |
| * switch (i) { |
| * case 1: |
| * case 2: |
| * System.out.println(444); |
| * break; |
| * default: |
| * System.out.println(0); |
| * } |
| * </pre> |
| * This contains three SwitchEntrys. |
| * <br/>The first one has label 1 and no statements. |
| * <br/>The second has label 2 and two statements (the println and the break). |
| * <br/>The third, the default, has no label and one statement. |
| * <br/>All of them are of type STATEMENT_GROUP. |
| * <h2>Java 12-</h2> |
| * <pre> |
| * case 1 -> 15*15; |
| * case 2 -> { a++; b++; } |
| * case 3 -> throw new Exception(); |
| * </pre> |
| * These are three new variants. |
| * <br/>The first one is of type EXPRESSION and stores its {@link Expression} in an {@link ExpressionStmt} |
| * which is stored as the first and only statement in statements. |
| * <br/>The second one is of type BLOCK and stores its {@link BlockStmt} as the first and only statement in statements. |
| * <br/>The third one is of type THROWS_STATEMENT and stores its {@link ThrowStmt} as the first and only statement in statements. |
| * <pre> |
| * case MONDAY, FRIDAY, SUNDAY -> 6; |
| * </pre> |
| * Multiple case labels are now allowed. |
| * <pre> |
| * case 16*16, 10+10 -> 6; |
| * </pre> |
| * Many kinds of expressions are now allowed. |
| * |
| * @author Julio Vilmar Gesser |
| * @see SwitchStmt |
| * @see com.github.javaparser.ast.expr.SwitchExpr |
| */ |
| public class SwitchEntry extends Node implements NodeWithStatements<SwitchEntry> { |
| |
| public enum Type { |
| |
| STATEMENT_GROUP, EXPRESSION, BLOCK, THROWS_STATEMENT |
| } |
| |
| private NodeList<Expression> labels; |
| |
| private NodeList<Statement> statements; |
| |
| private Type type; |
| |
| public SwitchEntry() { |
| this(null, new NodeList<Expression>(), Type.STATEMENT_GROUP, new NodeList<>()); |
| } |
| |
| @AllFieldsConstructor |
| public SwitchEntry(final NodeList<Expression> labels, final Type type, final NodeList<Statement> statements) { |
| this(null, labels, type, statements); |
| } |
| |
| /** |
| * This constructor is used by the parser and is considered private. |
| */ |
| @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator") |
| public SwitchEntry(TokenRange tokenRange, NodeList<Expression> labels, Type type, NodeList<Statement> statements) { |
| super(tokenRange); |
| setLabels(labels); |
| setType(type); |
| setStatements(statements); |
| 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 NodeList<Expression> getLabels() { |
| return labels; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public NodeList<Statement> getStatements() { |
| return statements; |
| } |
| |
| /** |
| * Sets the label |
| * |
| * @param labels the label, can be null |
| * @return this, the SwitchEntry |
| */ |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public SwitchEntry setLabels(final NodeList<Expression> labels) { |
| assertNotNull(labels); |
| if (labels == this.labels) { |
| return (SwitchEntry) this; |
| } |
| notifyPropertyChange(ObservableProperty.LABELS, this.labels, labels); |
| if (this.labels != null) |
| this.labels.setParentNode(null); |
| this.labels = labels; |
| setAsParentNodeOf(labels); |
| return this; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public SwitchEntry setStatements(final NodeList<Statement> statements) { |
| assertNotNull(statements); |
| if (statements == this.statements) { |
| return (SwitchEntry) this; |
| } |
| notifyPropertyChange(ObservableProperty.STATEMENTS, this.statements, statements); |
| if (this.statements != null) |
| this.statements.setParentNode(null); |
| this.statements = statements; |
| setAsParentNodeOf(statements); |
| return this; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator") |
| public boolean remove(Node node) { |
| if (node == null) |
| return false; |
| for (int i = 0; i < labels.size(); i++) { |
| if (labels.get(i) == node) { |
| labels.remove(i); |
| return true; |
| } |
| } |
| for (int i = 0; i < statements.size(); i++) { |
| if (statements.get(i) == node) { |
| statements.remove(i); |
| return true; |
| } |
| } |
| return super.remove(node); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.CloneGenerator") |
| public SwitchEntry clone() { |
| return (SwitchEntry) accept(new CloneVisitor(), null); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator") |
| public SwitchEntryMetaModel getMetaModel() { |
| return JavaParserMetaModel.switchEntryMetaModel; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public Type getType() { |
| return type; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public SwitchEntry setType(final Type type) { |
| assertNotNull(type); |
| if (type == this.type) { |
| return (SwitchEntry) this; |
| } |
| notifyPropertyChange(ObservableProperty.TYPE, this.type, type); |
| this.type = type; |
| return this; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator") |
| public boolean replace(Node node, Node replacementNode) { |
| if (node == null) |
| return false; |
| for (int i = 0; i < labels.size(); i++) { |
| if (labels.get(i) == node) { |
| labels.set(i, (Expression) replacementNode); |
| return true; |
| } |
| } |
| for (int i = 0; i < statements.size(); i++) { |
| if (statements.get(i) == node) { |
| statements.set(i, (Statement) replacementNode); |
| return true; |
| } |
| } |
| return super.replace(node, replacementNode); |
| } |
| } |