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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "annotation.h"
#include <vector>
namespace document {
struct SpanNode;
struct SpanTreeVisitor;
class SpanTree {
using AnnotationVector = std::vector<Annotation>;
vespalib::string _name;
std::unique_ptr<SpanNode> _root;
std::vector<Annotation> _annotations;
public:
using UP = std::unique_ptr<SpanTree>;
using const_iterator = AnnotationVector::const_iterator;
template <typename T>
SpanTree(vespalib::stringref name, std::unique_ptr<T> root)
: _name(name),
_root(std::move(root)) {
}
~SpanTree();
// The annotate functions return the annotation index.
size_t annotate(Annotation&& annotation_);
size_t annotate(const SpanNode& node, Annotation&& annotation_);
size_t annotate(const SpanNode& node, const AnnotationType& annotation_type);
Annotation & annotation(size_t index) { return _annotations[index]; }
const Annotation & annotation(size_t index) const { return _annotations[index]; }
void accept(SpanTreeVisitor &visitor) const;
const vespalib::string & getName() const { return _name; }
const SpanNode &getRoot() const { return *_root; }
size_t numAnnotations() const { return _annotations.size(); }
void reserveAnnotations(size_t sz) { _annotations.resize(sz); }
const_iterator begin() const { return _annotations.begin(); }
const_iterator end() const { return _annotations.end(); }
int compare(const SpanTree &other) const;
vespalib::string toString() const;
};
} // namespace document
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