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package graphql.language;

import graphql.Internal;

import graphql.PublicApi;

import graphql.util.TraversalControl;

import graphql.util.TraverserContext;

import java.util.ArrayList;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

import java.util.function.Consumer;

import static graphql.Assert.assertNotNull;

import static graphql.language.NodeChildrenContainer.newNodeChildrenContainer;

import static java.util.Collections.emptyMap;

@PublicApi

public class NonNullType extends AbstractNode<NonNullType> implements Type<NonNullType> {

private final Type type;

public static final String CHILD_TYPE = "type";

@Internal

protected NonNullType(Type type, SourceLocation sourceLocation, List<Comment> comments, IgnoredChars ignoredChars, Map<String, String> additionalData) {

super(sourceLocation, comments, ignoredChars, additionalData);

this.type = type;

}

/**

* alternative to using a Builder for convenience

*

* @param type the wrapped type

*/

public NonNullType(Type type) {

this(type, null, new ArrayList<>(), IgnoredChars.EMPTY, emptyMap());

}

public Type getType() {

return type;

}

@Override

public List<Node> getChildren() {

List<Node> result = new ArrayList<>();

result.add(type);

return result;

}

@Override

public NodeChildrenContainer getNamedChildren() {

return newNodeChildrenContainer()

.child(CHILD_TYPE, type)

.build();

}

@Override

public NonNullType withNewChildren(NodeChildrenContainer newChildren) {

return transform(builder -> builder

.type((Type) newChildren.getChildOrNull(CHILD_TYPE))

);

}

@Override

public boolean isEqualTo(Node o) {

if (this == o) {

return true;

}

if (o == null || getClass() != o.getClass()) {

return false;

}

return true;

}

@Override

public NonNullType deepCopy() {

return new NonNullType(deepCopy(type), getSourceLocation(), getComments(), getIgnoredChars(), getAdditionalData());

}

@Override

public String toString() {

return "NonNullType{" +

"type=" + type +

'}';

}

@Override

public TraversalControl accept(TraverserContext<Node> context, NodeVisitor visitor) {

return visitor.visitNonNullType(this, context);

}

public static Builder newNonNullType() {

return new Builder();

}

public static Builder newNonNullType(Type type) {

return new Builder().type(type);

}

public NonNullType transform(Consumer<Builder> builderConsumer) {

Builder builder = new Builder(this);

builderConsumer.accept(builder);

return builder.build();

}

public static final class Builder implements NodeBuilder {

private SourceLocation sourceLocation;

private Type type;

private List<Comment> comments = new ArrayList<>();

private IgnoredChars ignoredChars = IgnoredChars.EMPTY;

private Map<String, String> additionalData = new LinkedHashMap<>();

private Builder() {

}

private Builder(NonNullType existing) {

this.sourceLocation = existing.getSourceLocation();

this.comments = existing.getComments();

this.type = existing.getType();

this.ignoredChars = existing.getIgnoredChars();

this.additionalData = new LinkedHashMap<>(existing.getAdditionalData());

}

public Builder sourceLocation(SourceLocation sourceLocation) {

this.sourceLocation = sourceLocation;

return this;

}

public Builder type(ListType type) {

this.type = type;

return this;

}

public Builder type(TypeName type) {

this.type = type;

return this;

}

public Builder type(Type type) {

if (!(type instanceof ListType) && !(type instanceof TypeName)) {

throw new IllegalArgumentException("unexpected type");

}

this.type = type;

return this;

}

public Builder comments(List<Comment> comments) {

this.comments = comments;

return this;

}

public Builder ignoredChars(IgnoredChars ignoredChars) {

this.ignoredChars = ignoredChars;

return this;

}

public Builder additionalData(Map<String, String> additionalData) {

this.additionalData = assertNotNull(additionalData);

return this;

}

public Builder additionalData(String key, String value) {

this.additionalData.put(key, value);

return this;

}

public NonNullType build() {

return new NonNullType(type, sourceLocation, comments, ignoredChars, additionalData);

}

}

}