/
AnnotationNode.java
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/
AnnotationNode.java
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// Copyright 2020 Google LLC
//
// 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
//
// http://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 com.google.api.generator.engine.ast;
import com.google.auto.value.AutoValue;
import com.google.common.base.Preconditions;
import javax.annotation.Nullable;
@AutoValue
public abstract class AnnotationNode implements AstNode {
public static AnnotationNode OVERRIDE =
AnnotationNode.builder().setType(annotationType(Override.class)).build();
public static AnnotationNode DEPRECATED =
AnnotationNode.builder().setType(annotationType(Deprecated.class)).build();
private static TypeNode annotationType(Class<?> clazz) {
return TypeNode.withReference(ConcreteReference.withClazz(clazz));
}
public abstract TypeNode type();
// TODO(unsupported): Any args that do not consist of a single string. However, this can easily be
// extended to enable such support.
@Nullable
public abstract Expr descriptionExpr();
@Override
public void accept(AstNodeVisitor visitor) {
visitor.visit(this);
}
public static AnnotationNode withTypeAndDescription(TypeNode type, String description) {
return AnnotationNode.builder().setType(type).setDescription(description).build();
}
public static AnnotationNode withSuppressWarnings(String description) {
return withTypeAndDescription(annotationType(SuppressWarnings.class), description);
}
public static AnnotationNode withType(TypeNode type) {
return builder().setType(type).build();
}
public static Builder builder() {
return new AutoValue_AnnotationNode.Builder();
}
@AutoValue.Builder
public abstract static class Builder {
public abstract Builder setType(TypeNode type);
public Builder setDescription(String description) {
return setDescriptionExpr(ValueExpr.withValue(StringObjectValue.withValue(description)));
}
// This will never be anything other than a ValueExpr-wrapped StringObjectValue because
// this setter is private, and called only by setDescription above.
abstract Builder setDescriptionExpr(Expr descriptionExpr);
abstract AnnotationNode autoBuild();
public AnnotationNode build() {
AnnotationNode annotation = autoBuild();
Reference ref = annotation.type().reference();
Preconditions.checkNotNull(ref, "Annotations must be an Object type");
return annotation;
}
}
}