| /* |
| * 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.ast.AllFieldsConstructor; |
| import com.github.javaparser.ast.expr.BooleanLiteralExpr; |
| import com.github.javaparser.ast.expr.Expression; |
| import com.github.javaparser.ast.nodeTypes.NodeWithCondition; |
| import com.github.javaparser.ast.observer.ObservableProperty; |
| import com.github.javaparser.ast.visitor.GenericVisitor; |
| import com.github.javaparser.ast.visitor.VoidVisitor; |
| import java.util.Optional; |
| import static com.github.javaparser.utils.Utils.assertNotNull; |
| import com.github.javaparser.ast.Node; |
| import com.github.javaparser.ast.visitor.CloneVisitor; |
| import com.github.javaparser.metamodel.DerivedProperty; |
| import com.github.javaparser.metamodel.IfStmtMetaModel; |
| import com.github.javaparser.metamodel.JavaParserMetaModel; |
| import javax.annotation.Generated; |
| import com.github.javaparser.TokenRange; |
| import com.github.javaparser.metamodel.OptionalProperty; |
| import java.util.function.Consumer; |
| |
| /** |
| * An if-then-else statement. The else is optional. |
| * <br/>In <code>if(a==5) hurray() else boo();</code> the condition is a==5, |
| * hurray() is the thenStmt, and boo() is the elseStmt. |
| * |
| * @author Julio Vilmar Gesser |
| */ |
| public final class IfStmt extends Statement implements NodeWithCondition<IfStmt> { |
| |
| private Expression condition; |
| |
| private Statement thenStmt; |
| |
| @OptionalProperty |
| private Statement elseStmt; |
| |
| public IfStmt() { |
| this(null, new BooleanLiteralExpr(), new ReturnStmt(), null); |
| } |
| |
| @AllFieldsConstructor |
| public IfStmt(final Expression condition, final Statement thenStmt, final Statement elseStmt) { |
| this(null, condition, thenStmt, elseStmt); |
| } |
| |
| /** |
| * This constructor is used by the parser and is considered private. |
| */ |
| @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator") |
| public IfStmt(TokenRange tokenRange, Expression condition, Statement thenStmt, Statement elseStmt) { |
| super(tokenRange); |
| setCondition(condition); |
| setThenStmt(thenStmt); |
| setElseStmt(elseStmt); |
| 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 Expression getCondition() { |
| return condition; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public Optional<Statement> getElseStmt() { |
| return Optional.ofNullable(elseStmt); |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public Statement getThenStmt() { |
| return thenStmt; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public IfStmt setCondition(final Expression condition) { |
| assertNotNull(condition); |
| if (condition == this.condition) { |
| return (IfStmt) this; |
| } |
| notifyPropertyChange(ObservableProperty.CONDITION, this.condition, condition); |
| if (this.condition != null) |
| this.condition.setParentNode(null); |
| this.condition = condition; |
| setAsParentNodeOf(condition); |
| return this; |
| } |
| |
| /** |
| * Sets the elseStmt |
| * |
| * @param elseStmt the elseStmt, can be null |
| * @return this, the IfStmt |
| */ |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public IfStmt setElseStmt(final Statement elseStmt) { |
| if (elseStmt == this.elseStmt) { |
| return (IfStmt) this; |
| } |
| notifyPropertyChange(ObservableProperty.ELSE_STMT, this.elseStmt, elseStmt); |
| if (this.elseStmt != null) |
| this.elseStmt.setParentNode(null); |
| this.elseStmt = elseStmt; |
| setAsParentNodeOf(elseStmt); |
| return this; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public IfStmt setThenStmt(final Statement thenStmt) { |
| assertNotNull(thenStmt); |
| if (thenStmt == this.thenStmt) { |
| return (IfStmt) this; |
| } |
| notifyPropertyChange(ObservableProperty.THEN_STMT, this.thenStmt, thenStmt); |
| if (this.thenStmt != null) |
| this.thenStmt.setParentNode(null); |
| this.thenStmt = thenStmt; |
| setAsParentNodeOf(thenStmt); |
| return this; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator") |
| public boolean remove(Node node) { |
| if (node == null) |
| return false; |
| if (elseStmt != null) { |
| if (node == elseStmt) { |
| removeElseStmt(); |
| return true; |
| } |
| } |
| return super.remove(node); |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator") |
| public IfStmt removeElseStmt() { |
| return setElseStmt((Statement) null); |
| } |
| |
| /** |
| * This method returns true if the then branch (which should be always present) is a block statement. |
| */ |
| @DerivedProperty |
| public boolean hasThenBlock() { |
| return thenStmt instanceof BlockStmt; |
| } |
| |
| /** |
| * This method returns true if the If Statement has an else branch and that branch is a block statement. |
| */ |
| @DerivedProperty |
| public boolean hasElseBlock() { |
| return elseStmt instanceof BlockStmt; |
| } |
| |
| /** |
| * This method returns true if the If Statement has an else branch and that branch is another If Statement. |
| */ |
| @DerivedProperty |
| public boolean hasCascadingIfStmt() { |
| return elseStmt instanceof IfStmt; |
| } |
| |
| /** |
| * This method returns true if the If Statement has an else branch. |
| */ |
| @DerivedProperty |
| public boolean hasElseBranch() { |
| return elseStmt != null; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.CloneGenerator") |
| public IfStmt clone() { |
| return (IfStmt) accept(new CloneVisitor(), null); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator") |
| public IfStmtMetaModel getMetaModel() { |
| return JavaParserMetaModel.ifStmtMetaModel; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator") |
| public boolean replace(Node node, Node replacementNode) { |
| if (node == null) |
| return false; |
| if (node == condition) { |
| setCondition((Expression) replacementNode); |
| return true; |
| } |
| if (elseStmt != null) { |
| if (node == elseStmt) { |
| setElseStmt((Statement) replacementNode); |
| return true; |
| } |
| } |
| if (node == thenStmt) { |
| setThenStmt((Statement) replacementNode); |
| return true; |
| } |
| return super.replace(node, replacementNode); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public boolean isIfStmt() { |
| return true; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public IfStmt asIfStmt() { |
| return this; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public void ifIfStmt(Consumer<IfStmt> action) { |
| action.accept(this); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public Optional<IfStmt> toIfStmt() { |
| return Optional.of(this); |
| } |
| } |