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• AbstractGroovyElement.java

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io.micronaut.ast.groovy.visitor.AbstractGroovyElement Maven / Gradle / Ivy

/*
 * Copyright 2017-2020 original authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.micronaut.ast.groovy.visitor;

import groovy.transform.PackageScope;
import io.micronaut.core.annotation.AnnotationMetadata;
import io.micronaut.core.annotation.Internal;
import io.micronaut.core.annotation.NonNull;
import io.micronaut.core.annotation.Nullable;
import io.micronaut.core.util.ArrayUtils;
import io.micronaut.core.util.CollectionUtils;
import io.micronaut.core.util.StringUtils;
import io.micronaut.inject.ast.ClassElement;
import io.micronaut.inject.ast.Element;
import io.micronaut.inject.ast.ElementModifier;
import io.micronaut.inject.ast.PrimitiveElement;
import io.micronaut.inject.ast.WildcardElement;
import io.micronaut.inject.ast.annotation.AbstractAnnotationElement;
import io.micronaut.inject.ast.annotation.ElementAnnotationMetadataFactory;
import org.codehaus.groovy.ast.AnnotatedNode;
import org.codehaus.groovy.ast.ClassHelper;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.ast.FieldNode;
import org.codehaus.groovy.ast.GenericsType;
import org.codehaus.groovy.ast.MethodNode;
import org.codehaus.groovy.control.CompilationUnit;
import org.codehaus.groovy.control.SourceUnit;

import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.regex.Pattern;
import java.util.stream.Stream;

/**
 * Abstract Groovy element.
 *
 * @author Graeme Rocher
 * @author Denis Stepanov
 * @since 1.1
 */
@Internal
public abstract class AbstractGroovyElement extends AbstractAnnotationElement {

    private static final Pattern JAVADOC_PATTERN = Pattern.compile("(/\\s*\\*\\*)|\\s*\\*|(\\s*[*/])");

    protected final SourceUnit sourceUnit;
    protected final CompilationUnit compilationUnit;
    protected final GroovyVisitorContext visitorContext;
    private final GroovyNativeElement nativeElement;

    /**
     * Default constructor.
     *
     * @param visitorContext            The groovy visitor context
     * @param nativeElement             The native element
     * @param annotationMetadataFactory The annotation metadata factory
     */
    protected AbstractGroovyElement(GroovyVisitorContext visitorContext,
                                    GroovyNativeElement nativeElement,
                                    ElementAnnotationMetadataFactory annotationMetadataFactory) {
        super(annotationMetadataFactory);
        this.visitorContext = visitorContext;
        this.compilationUnit = visitorContext.getCompilationUnit();
        this.nativeElement = nativeElement;
        this.sourceUnit = visitorContext.getSourceUnit();
    }

    /**
     * Constructs this element by invoking the constructor.
     *
     * @return the copy
     */
    @NonNull
    protected abstract AbstractGroovyElement copyConstructor();

    /**
     * Copies additional values after the element was constructed by {@link #copyConstructor()}.
     *
     * @param element the values to be copied to
     */
    protected void copyValues(@NonNull AbstractGroovyElement element) {
        element.presetAnnotationMetadata = presetAnnotationMetadata;
    }

    /**
     * Makes a copy of this element.
     *
     * @return a copy
     */
    @NonNull
    protected final AbstractGroovyElement copy() {
        AbstractGroovyElement element = copyConstructor();
        copyValues(element);
        return element;
    }

    @Override
    public io.micronaut.inject.ast.Element withAnnotationMetadata(AnnotationMetadata annotationMetadata) {
        AbstractGroovyElement element = copy();
        element.presetAnnotationMetadata = annotationMetadata;
        return element;
    }

    @Override
    public GroovyNativeElement getNativeType() {
        return nativeElement;
    }

    @Override
    public boolean isPackagePrivate() {
        return hasDeclaredAnnotation(PackageScope.class);
    }

    @NonNull
    protected final ClassElement newClassElement(@NonNull ClassNode type,
                                                 @Nullable Map genericsSpec) {
        if (genericsSpec == null) {
            return newClassElement(type);
        }
        return newClassElement(getNativeType(), type, genericsSpec, new HashSet<>(), false, false);
    }

    @NonNull
    protected final ClassElement newClassElement(GenericsType genericsType) {
        return newClassElement(getNativeType(), getNativeType().annotatedNode(), genericsType, genericsType, Collections.emptyMap(), new HashSet<>(), false);
    }

    @NonNull
    protected final ClassElement newClassElement(ClassNode type) {
        return newClassElement(getNativeType(), type, Collections.emptyMap(), new HashSet<>(), false, false);
    }

    @NonNull
    private ClassElement newClassElement(@Nullable GroovyNativeElement declaredElement,
                                         AnnotatedNode genericsOwner,
                                         GenericsType genericsType,
                                         GenericsType redirectType,
                                         Map parentTypeArguments,
                                         Set