| /* |
| * 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.expr; |
| |
| import com.github.javaparser.ast.AllFieldsConstructor; |
| import com.github.javaparser.ast.nodeTypes.NodeWithExpression; |
| import com.github.javaparser.ast.observer.ObservableProperty; |
| import com.github.javaparser.ast.visitor.GenericVisitor; |
| import com.github.javaparser.ast.visitor.VoidVisitor; |
| 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.UnaryExprMetaModel; |
| import com.github.javaparser.metamodel.JavaParserMetaModel; |
| import com.github.javaparser.printer.Printable; |
| import javax.annotation.Generated; |
| import com.github.javaparser.TokenRange; |
| import java.util.function.Consumer; |
| import java.util.Optional; |
| |
| /** |
| * An expression where an operator is applied to a single expression. |
| * It supports the operators that are found the the UnaryExpr.Operator enum. |
| * <br/><code>11++</code> |
| * <br/><code>++11</code> |
| * <br/><code>~1</code> |
| * <br/><code>-333</code> |
| * |
| * @author Julio Vilmar Gesser |
| */ |
| public final class UnaryExpr extends Expression implements NodeWithExpression<UnaryExpr> { |
| |
| public enum Operator implements Printable { |
| |
| PLUS("+", false), |
| MINUS("-", false), |
| PREFIX_INCREMENT("++", false), |
| PREFIX_DECREMENT("--", false), |
| LOGICAL_COMPLEMENT("!", false), |
| BITWISE_COMPLEMENT("~", false), |
| POSTFIX_INCREMENT("++", true), |
| POSTFIX_DECREMENT("--", true); |
| |
| private final String codeRepresentation; |
| |
| private final boolean isPostfix; |
| |
| Operator(String codeRepresentation, boolean isPostfix) { |
| this.codeRepresentation = codeRepresentation; |
| this.isPostfix = isPostfix; |
| } |
| |
| public String asString() { |
| return codeRepresentation; |
| } |
| |
| public boolean isPostfix() { |
| return isPostfix; |
| } |
| |
| public boolean isPrefix() { |
| return !isPostfix(); |
| } |
| } |
| |
| private Expression expression; |
| |
| private Operator operator; |
| |
| public UnaryExpr() { |
| this(null, new IntegerLiteralExpr(), Operator.POSTFIX_INCREMENT); |
| } |
| |
| @AllFieldsConstructor |
| public UnaryExpr(final Expression expression, final Operator operator) { |
| this(null, expression, operator); |
| } |
| |
| /** |
| * This constructor is used by the parser and is considered private. |
| */ |
| @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator") |
| public UnaryExpr(TokenRange tokenRange, Expression expression, Operator operator) { |
| super(tokenRange); |
| setExpression(expression); |
| setOperator(operator); |
| 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 getExpression() { |
| return expression; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public Operator getOperator() { |
| return operator; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public UnaryExpr setExpression(final Expression expression) { |
| assertNotNull(expression); |
| if (expression == this.expression) { |
| return (UnaryExpr) this; |
| } |
| notifyPropertyChange(ObservableProperty.EXPRESSION, this.expression, expression); |
| if (this.expression != null) |
| this.expression.setParentNode(null); |
| this.expression = expression; |
| setAsParentNodeOf(expression); |
| return this; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.PropertyGenerator") |
| public UnaryExpr setOperator(final Operator operator) { |
| assertNotNull(operator); |
| if (operator == this.operator) { |
| return (UnaryExpr) this; |
| } |
| notifyPropertyChange(ObservableProperty.OPERATOR, this.operator, operator); |
| this.operator = operator; |
| 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); |
| } |
| |
| @DerivedProperty |
| public boolean isPostfix() { |
| return operator.isPostfix(); |
| } |
| |
| @DerivedProperty |
| public boolean isPrefix() { |
| return !isPostfix(); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.CloneGenerator") |
| public UnaryExpr clone() { |
| return (UnaryExpr) accept(new CloneVisitor(), null); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator") |
| public UnaryExprMetaModel getMetaModel() { |
| return JavaParserMetaModel.unaryExprMetaModel; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator") |
| public boolean replace(Node node, Node replacementNode) { |
| if (node == null) |
| return false; |
| if (node == expression) { |
| setExpression((Expression) replacementNode); |
| return true; |
| } |
| return super.replace(node, replacementNode); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public boolean isUnaryExpr() { |
| return true; |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public UnaryExpr asUnaryExpr() { |
| return this; |
| } |
| |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public void ifUnaryExpr(Consumer<UnaryExpr> action) { |
| action.accept(this); |
| } |
| |
| @Override |
| @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator") |
| public Optional<UnaryExpr> toUnaryExpr() { |
| return Optional.of(this); |
| } |
| } |