// Sort interface for []block1; used for self-check in addVariables.

type block1 struct {
	Block
	index int
}

type blockSlice []block1

func (b blockSlice) Len() int           { return len(b) }
func (b blockSlice) Less(i, j int) bool { return b[i].startByte < b[j].startByte }
func (b blockSlice) Swap(i, j int)      { b[i], b[j] = b[j], b[i] }

// offset translates a token position into a 0-indexed byte offset.

			mak:      "newSparseMapPos(%s)",
			resize:   "", // larger-sized sparse maps are ok
			clear:    "%s.clear()",
			minLog:   5,
			maxLog:   32,
		},
	}
	deriveds := []derived{
		{
			name: "BlockSlice",
			typ:  "[]*Block",
			base: "ValueSlice",
		},
		{
			name: "IntSlice",
			typ:  "[]int",
			base: "Int64Slice",
		},
		{
			name: "Int32Slice",
			typ:  "[]int32",
			base: "Int64Slice",