Function paginate

mcp/client.go:1163–1183

paginate is a generic helper function to provide a paginated iterator.

(ctx context.Context, params P, listFunc func(context.Context, P) (R, error), items func(R) []*T)

// paginate is a generic helper function to provide a paginated iterator.
func paginate[P listParams, R listResult[T], T any](ctx context.Context, params P, listFunc func(context.Context, P) (R, error), items func(R) []*T) iter.Seq2[*T, error] {
	return func(yield func(*T, error) bool) {
		for {
			res, err := listFunc(ctx, params)
			if err != nil {
				yield(nil, err)
				return
			}
			for _, r := range items(res) {
				if !yield(r, nil) {
					return
				}
			}
			nextCursorVal := res.nextCursorPtr()
			if nextCursorVal == nil || *nextCursorVal == "" {
				return
			}
			*params.cursorPtr() = *nextCursorVal
		}
	}
}