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io.micronaut.ast.groovy.visitor.GroovyGenericPlaceholderElement Maven / Gradle / Ivy
/*
* Copyright 2017-2021 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 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.inject.annotation.AnnotationMetadataHierarchy;
import io.micronaut.inject.ast.ClassElement;
import io.micronaut.inject.ast.Element;
import io.micronaut.inject.ast.GenericPlaceholderElement;
import io.micronaut.inject.ast.WildcardElement;
import io.micronaut.inject.ast.annotation.ElementAnnotationMetadata;
import io.micronaut.inject.ast.annotation.GenericPlaceholderElementAnnotationMetadata;
import io.micronaut.inject.ast.annotation.MutableAnnotationMetadataDelegate;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Function;
/**
* Implementation of {@link io.micronaut.inject.ast.GenericPlaceholderElement} for Groovy.
*
* @author Jonas Konrad
* @since 3.1.0
*/
@Internal
final class GroovyGenericPlaceholderElement extends GroovyClassElement implements GenericPlaceholderElement {
private final GroovyNativeElement placeholderNativeElement;
private final Element declaringElement;
private final String variableName;
private final GroovyClassElement resolved;
private final List bounds;
private final boolean rawType;
private final ElementAnnotationMetadata typeAnnotationMetadata;
@Nullable
private ElementAnnotationMetadata genericTypeAnnotationMetadata;
GroovyGenericPlaceholderElement(GroovyVisitorContext visitorContext,
Element declaringElement,
GroovyNativeElement placeholderNativeElement,
@Nullable
GroovyClassElement resolved,
List bounds,
int arrayDimensions,
boolean rawType,
String variableName) {
this(visitorContext, declaringElement, placeholderNativeElement, variableName, resolved, bounds, selectClassElementRepresentingThisPlaceholder(resolved, bounds), arrayDimensions, rawType);
}
GroovyGenericPlaceholderElement(GroovyVisitorContext visitorContext,
Element declaringElement,
GroovyNativeElement placeholderNativeElement,
String variableName,
@Nullable
GroovyClassElement resolved,
List bounds,
GroovyClassElement classElementRepresentingThisPlaceholder,
int arrayDimensions,
boolean rawType) {
super(visitorContext,
classElementRepresentingThisPlaceholder.getNativeType(),
classElementRepresentingThisPlaceholder.getElementAnnotationMetadataFactory(),
classElementRepresentingThisPlaceholder.resolvedTypeArguments,
arrayDimensions);
this.declaringElement = declaringElement;
this.placeholderNativeElement = placeholderNativeElement;
this.variableName = variableName;
this.resolved = resolved;
this.bounds = bounds;
this.rawType = rawType;
typeAnnotationMetadata = new GenericPlaceholderElementAnnotationMetadata(this, classElementRepresentingThisPlaceholder);
}
private static GroovyClassElement selectClassElementRepresentingThisPlaceholder(@Nullable GroovyClassElement resolved,
@NonNull List bounds) {
if (resolved != null) {
return resolved;
}
return WildcardElement.findUpperType(bounds, bounds);
}
@Override
public boolean isTypeVariable() {
return true;
}
@Override
protected MutableAnnotationMetadataDelegate getAnnotationMetadataToWrite() {
return getGenericTypeAnnotationMetadata();
}
@NonNull
@Override
public MutableAnnotationMetadataDelegate getGenericTypeAnnotationMetadata() {
if (genericTypeAnnotationMetadata == null) {
genericTypeAnnotationMetadata = elementAnnotationMetadataFactory.buildGenericTypeAnnotations(this);
}
return genericTypeAnnotationMetadata;
}
@NonNull
@Override
public MutableAnnotationMetadataDelegate getTypeAnnotationMetadata() {
return typeAnnotationMetadata;
}
@NonNull
@Override
public AnnotationMetadata getAnnotationMetadata() {
return new AnnotationMetadataHierarchy(true, super.getAnnotationMetadata(), getGenericTypeAnnotationMetadata());
}
@NonNull
@Override
public GroovyNativeElement getGenericNativeType() {
return placeholderNativeElement;
}
@Override
public boolean isRawType() {
return rawType;
}
@NonNull
@Override
protected GroovyClassElement copyConstructor() {
return new GroovyGenericPlaceholderElement(visitorContext, declaringElement, placeholderNativeElement, variableName, resolved, bounds, selectClassElementRepresentingThisPlaceholder(resolved, bounds), getArrayDimensions(), rawType);
}
@NonNull
@Override
public List getBounds() {
return bounds;
}
@NonNull
@Override
public String getVariableName() {
return variableName;
}
@Override
public Optional getDeclaringElement() {
return Optional.ofNullable(declaringElement);
}
@Override
public ClassElement withArrayDimensions(int arrayDimensions) {
return new GroovyGenericPlaceholderElement(visitorContext, declaringElement, placeholderNativeElement, variableName, resolved, bounds, selectClassElementRepresentingThisPlaceholder(resolved, bounds), arrayDimensions, rawType);
}
@Override
public ClassElement foldBoundGenericTypes(@NonNull Function fold) {
Objects.requireNonNull(fold, "Function argument cannot be null");
return fold.apply(this);
}
@Override
public Optional getResolved() {
return Optional.ofNullable(resolved);
}
@Nullable
public GroovyClassElement getResolvedInternal() {
return resolved;
}
}
