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• Expression.java

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com.github.javaparser.ast.expr.Expression Maven / Gradle / Ivy

/*
 * Copyright (C) 2007-2010 Júlio Vilmar Gesser.
 * Copyright (C) 2011, 2013-2024 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 static com.github.javaparser.utils.CodeGenerationUtils.f;

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.NodeWithOptionalScope;
import com.github.javaparser.ast.nodeTypes.NodeWithTypeArguments;
import com.github.javaparser.ast.visitor.CloneVisitor;
import com.github.javaparser.metamodel.ExpressionMetaModel;
import com.github.javaparser.metamodel.JavaParserMetaModel;
import com.github.javaparser.resolution.types.ResolvedType;
import java.util.Optional;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Predicate;

/**
 * A base class for all expressions.
 *
 * @author Julio Vilmar Gesser
 */
public abstract class Expression extends Node {

    /**
     * Returns {@code true} when the Node to be tested is not an
     * {@link EnclosedExpr}, {@code false} otherwise.
     */
    public static final Predicate IS_NOT_ENCLOSED_EXPR = n -> !(n instanceof EnclosedExpr);

    /**
     * A {@link Function} that returns its argument (an {@link Expression}) when
     * the argument is not an {@link EnclosedExpr}, otherwise the first
     * {@link Expression} down the argument's 'inner' path that is not an
     * {@link EnclosedExpr}.
     */
    public static final Function EXCLUDE_ENCLOSED_EXPR = expr -> {
        while (expr.isEnclosedExpr()) {
            expr = expr.asEnclosedExpr().getInner();
        }
        return expr;
    };

    @AllFieldsConstructor
    public Expression() {
        this(null);
    }

    /**
     * This constructor is used by the parser and is considered private.
     */
    @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")
    public Expression(TokenRange tokenRange) {
        super(tokenRange);
        customInitialization();
    }

    @Override
    @Generated("com.github.javaparser.generator.core.node.CloneGenerator")
    public Expression clone() {
        return (Expression) accept(new CloneVisitor(), null);
    }

    @Override
    @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")
    public ExpressionMetaModel getMetaModel() {
        return JavaParserMetaModel.expressionMetaModel;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isAnnotationExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public AnnotationExpr asAnnotationExpr() {
        throw new IllegalStateException(
                f("%s is not AnnotationExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isArrayAccessExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public ArrayAccessExpr asArrayAccessExpr() {
        throw new IllegalStateException(
                f("%s is not ArrayAccessExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isArrayCreationExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public ArrayCreationExpr asArrayCreationExpr() {
        throw new IllegalStateException(
                f("%s is not ArrayCreationExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isArrayInitializerExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public ArrayInitializerExpr asArrayInitializerExpr() {
        throw new IllegalStateException(f(
                "%s is not ArrayInitializerExpr, it is %s",
                this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isAssignExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public AssignExpr asAssignExpr() {
        throw new IllegalStateException(
                f("%s is not AssignExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isBinaryExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public BinaryExpr asBinaryExpr() {
        throw new IllegalStateException(
                f("%s is not BinaryExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isBooleanLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public BooleanLiteralExpr asBooleanLiteralExpr() {
        throw new IllegalStateException(f(
                "%s is not BooleanLiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isCastExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public CastExpr asCastExpr() {
        throw new IllegalStateException(
                f("%s is not CastExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isCharLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public CharLiteralExpr asCharLiteralExpr() {
        throw new IllegalStateException(
                f("%s is not CharLiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isClassExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public ClassExpr asClassExpr() {
        throw new IllegalStateException(
                f("%s is not ClassExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isConditionalExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public ConditionalExpr asConditionalExpr() {
        throw new IllegalStateException(
                f("%s is not ConditionalExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isDoubleLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public DoubleLiteralExpr asDoubleLiteralExpr() {
        throw new IllegalStateException(
                f("%s is not DoubleLiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isEnclosedExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public EnclosedExpr asEnclosedExpr() {
        throw new IllegalStateException(
                f("%s is not EnclosedExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isFieldAccessExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public FieldAccessExpr asFieldAccessExpr() {
        throw new IllegalStateException(
                f("%s is not FieldAccessExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isInstanceOfExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public InstanceOfExpr asInstanceOfExpr() {
        throw new IllegalStateException(
                f("%s is not InstanceOfExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isIntegerLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public IntegerLiteralExpr asIntegerLiteralExpr() {
        throw new IllegalStateException(f(
                "%s is not IntegerLiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isLambdaExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public LambdaExpr asLambdaExpr() {
        throw new IllegalStateException(
                f("%s is not LambdaExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public LiteralExpr asLiteralExpr() {
        throw new IllegalStateException(
                f("%s is not LiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isLiteralStringValueExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public LiteralStringValueExpr asLiteralStringValueExpr() {
        throw new IllegalStateException(f(
                "%s is not LiteralStringValueExpr, it is %s",
                this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isLongLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public LongLiteralExpr asLongLiteralExpr() {
        throw new IllegalStateException(
                f("%s is not LongLiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isMarkerAnnotationExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public MarkerAnnotationExpr asMarkerAnnotationExpr() {
        throw new IllegalStateException(f(
                "%s is not MarkerAnnotationExpr, it is %s",
                this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isMethodCallExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public MethodCallExpr asMethodCallExpr() {
        throw new IllegalStateException(
                f("%s is not MethodCallExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isMethodReferenceExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public MethodReferenceExpr asMethodReferenceExpr() {
        throw new IllegalStateException(f(
                "%s is not MethodReferenceExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isNameExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public NameExpr asNameExpr() {
        throw new IllegalStateException(
                f("%s is not NameExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isNormalAnnotationExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public NormalAnnotationExpr asNormalAnnotationExpr() {
        throw new IllegalStateException(f(
                "%s is not NormalAnnotationExpr, it is %s",
                this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isNullLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public NullLiteralExpr asNullLiteralExpr() {
        throw new IllegalStateException(
                f("%s is not NullLiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isObjectCreationExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public ObjectCreationExpr asObjectCreationExpr() {
        throw new IllegalStateException(f(
                "%s is not ObjectCreationExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isSingleMemberAnnotationExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public SingleMemberAnnotationExpr asSingleMemberAnnotationExpr() {
        throw new IllegalStateException(f(
                "%s is not SingleMemberAnnotationExpr, it is %s",
                this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isStringLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public StringLiteralExpr asStringLiteralExpr() {
        throw new IllegalStateException(
                f("%s is not StringLiteralExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isSuperExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public SuperExpr asSuperExpr() {
        throw new IllegalStateException(
                f("%s is not SuperExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isThisExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public ThisExpr asThisExpr() {
        throw new IllegalStateException(
                f("%s is not ThisExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isTypeExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public TypeExpr asTypeExpr() {
        throw new IllegalStateException(
                f("%s is not TypeExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isUnaryExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public UnaryExpr asUnaryExpr() {
        throw new IllegalStateException(
                f("%s is not UnaryExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isVariableDeclarationExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public VariableDeclarationExpr asVariableDeclarationExpr() {
        throw new IllegalStateException(f(
                "%s is not VariableDeclarationExpr, it is %s",
                this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifAnnotationExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifArrayAccessExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifArrayCreationExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifArrayInitializerExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifAssignExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifBinaryExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifBooleanLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifCastExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifCharLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifClassExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifConditionalExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifDoubleLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifEnclosedExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifFieldAccessExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifInstanceOfExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifIntegerLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifLambdaExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifLiteralStringValueExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifLongLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifMarkerAnnotationExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifMethodCallExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifMethodReferenceExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifNameExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifNormalAnnotationExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifNullLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifObjectCreationExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifSingleMemberAnnotationExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifStringLiteralExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifSuperExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifThisExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifTypeExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifUnaryExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifVariableDeclarationExpr(Consumer action) {}

    /**
     * returns the type associated with the node.
     */
    public ResolvedType calculateResolvedType() {
        return getSymbolResolver().calculateType(this);
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toAnnotationExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toArrayAccessExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toArrayCreationExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toArrayInitializerExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toAssignExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toBinaryExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toBooleanLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toCastExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toCharLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toClassExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toConditionalExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toDoubleLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toEnclosedExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toFieldAccessExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toInstanceOfExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toIntegerLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toLambdaExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toLiteralStringValueExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toLongLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toMarkerAnnotationExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toMethodCallExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toMethodReferenceExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toNameExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toNormalAnnotationExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toNullLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toObjectCreationExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toSingleMemberAnnotationExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toStringLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toSuperExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toThisExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toTypeExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toUnaryExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toVariableDeclarationExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isSwitchExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public SwitchExpr asSwitchExpr() {
        throw new IllegalStateException(
                f("%s is not SwitchExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toSwitchExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifSwitchExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isTextBlockLiteralExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public TextBlockLiteralExpr asTextBlockLiteralExpr() {
        throw new IllegalStateException(f(
                "%s is not TextBlockLiteralExpr, it is %s",
                this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toTextBlockLiteralExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifTextBlockLiteralExpr(Consumer action) {}

    /**
     * See https://docs.oracle.com/javase/specs/jls/se8/html/jls-15.html#jls-15.2
     * @return true if the expression is a standalone expression
     */
    public boolean isStandaloneExpression() {
        return !isPolyExpression();
    }

    /**
     * See https://docs.oracle.com/javase/specs/jls/se8/html/jls-15.html#jls-15.2
     * @return true if the expression is a poly expression
     */
    public boolean isPolyExpression() {
        return false;
    }

    /*
     * 6.5.6.2. Qualified Expression Names
     * https://docs.oracle.com/javase/specs/jls/se7/html/jls-6.html#jls-6.5.6.2
     */
    public boolean isQualified() {
        return hasScope();
    }

    /*
     * Verify if the parent node is an assignment context.
     */
    public final boolean appearsInAssignmentContext() {
        if (getParentNode().isPresent() && getParentNode().get() instanceof Expression) {
            return ((Expression) getParentNode().get()).isAssignmentContext();
        }
        return false;
    }

    /*
     * Returns true if the expression is an assignment context. Default is false.
     * https://docs.oracle.com/javase/specs/jls/se8/html/jls-5.html#jls-5.2
     * 5.2. Assignment Contexts: Assignment contexts allow the value of an expression to be assigned (§15.26) to a variable;...
     */
    protected boolean isAssignmentContext() {
        return false;
    }

    /*
     * Verify if the parent node is an invocation context.
     */
    public final boolean appearsInInvocationContext() {
        if (getParentNode().isPresent() && getParentNode().get() instanceof Expression) {
            return ((Expression) getParentNode().get()).isInvocationContext();
        }
        return false;
    }

    /*
     * Returns true if the expression is an invocation context. Default is false.
     * https://docs.oracle.com/javase/specs/jls/se8/html/jls-5.html#jls-5.3
     * 5.3. Invocation Contexts
     */
    protected boolean isInvocationContext() {
        return false;
    }

    /*
     * returns true if the scope of this expression does not define an type argument or if the expression has not a scope (the expression is not qualified)
     * or if there is a scope it uses <> to elide class type arguments
     * For exemple :
     * m()      ==> true because there is no scope
     * a.m()    ==> true because the scope has no type arguments
     * a<>.m()  ==> true because the type argument is elided
     * a.m() ==> false because the type argument is not elided
     */
    public final boolean elidesTypeArguments() {
        if (!(hasScope() && this instanceof NodeWithTypeArguments)) {
            return true;
        }
        Expression scope =
                (Expression) ((NodeWithOptionalScope) this).getScope().get();
        NodeWithTypeArguments nwta = (NodeWithTypeArguments) this;
        return scope.elidesTypeArguments() && (!nwta.getTypeArguments().isPresent() || nwta.isUsingDiamondOperator());
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isTypePatternExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public TypePatternExpr asTypePatternExpr() {
        throw new IllegalStateException(
                f("%s is not TypePatternExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toTypePatternExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifTypePatternExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isPatternExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public PatternExpr asPatternExpr() {
        throw new IllegalStateException(
                f("%s is not PatternExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toPatternExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifPatternExpr(Consumer action) {}

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public boolean isRecordPatternExpr() {
        return false;
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public RecordPatternExpr asRecordPatternExpr() {
        throw new IllegalStateException(
                f("%s is not RecordPatternExpr, it is %s", this, this.getClass().getSimpleName()));
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public Optional toRecordPatternExpr() {
        return Optional.empty();
    }

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
    public void ifRecordPatternExpr(Consumer action) {}
}