Adding upstream version 2.5.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

index/scorch/snapshot_index_str.go

@@ -0,0 +1,79 @@
+//  Copyright (c) 2024 Couchbase, Inc.
+//
+// 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 scorch
+
+import (
+	"reflect"
+
+	"github.com/blevesearch/bleve/v2/size"
+	segment "github.com/blevesearch/scorch_segment_api/v2"
+)
+
+var reflectStaticSizeIndexSnapshotThesaurusTermReader int
+
+func init() {
+	var istr IndexSnapshotThesaurusTermReader
+	reflectStaticSizeIndexSnapshotThesaurusTermReader = int(reflect.TypeOf(istr).Size())
+}
+
+type IndexSnapshotThesaurusTermReader struct {
+	name          string
+	snapshot      *IndexSnapshot
+	thesauri      []segment.Thesaurus
+	postings      []segment.SynonymsList
+	iterators     []segment.SynonymsIterator
+	segmentOffset int
+}
+
+func (i *IndexSnapshotThesaurusTermReader) Size() int {
+	sizeInBytes := reflectStaticSizeIndexSnapshotThesaurusTermReader + size.SizeOfPtr +
+		len(i.name) + size.SizeOfString
+
+	for _, postings := range i.postings {
+		if postings != nil {
+			sizeInBytes += postings.Size()
+		}
+	}
+
+	for _, iterator := range i.iterators {
+		if iterator != nil {
+			sizeInBytes += iterator.Size()
+		}
+	}
+
+	return sizeInBytes
+}
+
+func (i *IndexSnapshotThesaurusTermReader) Next() (string, error) {
+	// find the next hit
+	for i.segmentOffset < len(i.iterators) {
+		if i.iterators[i.segmentOffset] != nil {
+			next, err := i.iterators[i.segmentOffset].Next()
+			if err != nil {
+				return "", err
+			}
+			if next != nil {
+				synTerm := next.Term()
+				return synTerm, nil
+			}
+		}
+		i.segmentOffset++
+	}
+	return "", nil
+}
+
+func (i *IndexSnapshotThesaurusTermReader) Close() error {
+	return nil
+}